Merge origin/next into fix/ci-queue-wait-no-status
ci/woodpecker/pr/ci Pipeline failed

Resolve against #1148's purpose-sensitive rewrite: keep next's
queue-clear message format and terminal-failure split, re-apply the
null-statuses tolerance and zero-contexts-first classification
(the half #1148 did not carry). All four ci-queue-wait suites green
on the merged tree.
This commit is contained in:
2026-08-19 16:30:05 -05:00
1936 changed files with 314848 additions and 3804 deletions
@@ -51,6 +51,8 @@ fix() { fix_count=$((fix_count + 1)); echo "[FIX] $*"; }
warn_count=0
warn() { warn_count=$((warn_count + 1)); echo "[WARN] $*"; }
note() { echo "[NOTE] $*"; return 0; }
pass() {
if [[ $VERBOSE -eq 1 ]]; then
echo "[OK] $*"
@@ -225,6 +227,130 @@ else
warn "mosaic-ensure-sequential-thinking helper missing"
fi
# Fleet transport binary (#1240).
#
# `mosaic fleet --help` reads "Manage the local Mosaic tmux fleet" and every
# roster the CLI scaffolds sets `transport: tmux`, but nothing in the install
# path provides tmux and, until now, nothing here noticed it was absent. On a
# greenfield host that produced a fleet which installed clean, started clean,
# and had no live seat; `mosaic fleet ps` was the operator's first and only
# signal that anything was wrong.
#
# The roster's own `transport:` is read rather than assumed, so a host that
# declares something other than tmux is told about the binary it actually
# needs. Absent a roster the check still runs — `mosaic fleet init` will
# scaffold a tmux fleet on this host, and finding out beforehand is the point.
#
# `tools/install.sh` carries a deliberately parallel check at the end of its
# summary. The two are separate because the installer must be able to say this
# before the framework's own scripts are guaranteed to be on disk; keep their
# wording in step.
fleet_declared_transport() {
local roster="$MOSAIC_HOME/fleet/roster.yaml"
local declared=""
if [[ -f "$roster" ]]; then
declared="$(sed -n 's/^[[:space:]]*transport:[[:space:]]*//p' "$roster" | head -1 |
tr -d '"'\''' | tr -d '\r' | awk '{print $1}')"
fi
printf '%s\n' "${declared:-tmux}"
}
# Brain-home fleet-state resolution (#1298; canon STRUCTURE-CANON §2).
#
# Seat launch envs, roles.local overrides, and profile working copies resolve
# from the brain home when one is active; roster, baseline roles, run/, and
# services stay under MOSAIC_HOME. This check surfaces which tree fleet state
# resolves from and the drift a launch would otherwise hit at runtime:
#
# - a stale MOSAIC_BRAIN_HOME pointing at a directory with no fleet/agents is a
# misconfiguration the resolver honors (explicit wins) — warn, don't pass;
# - a symlinked brain or agents dir defeats the managed-directory boundary;
# - a group/world-readable agents dir violates the 0700 projection boundary;
# - env files left in the config-home tree while a brain is active are split
# state — the write path rejects NEW split writes, but nothing would ever
# tell the operator the old files are stranded.
resolve_brain_home() {
local explicit="${MOSAIC_BRAIN_HOME:-}"
if [[ -n "$(printf '%s' "$explicit" | tr -d '[:space:]')" ]]; then
printf '%s' "$explicit"
return
fi
if [[ "$(cd "$MOSAIC_HOME" 2>/dev/null && pwd -P)" == "$HOME/.config/mosaic" \
&& -d "$HOME/.mosaic/fleet/agents" ]]; then
printf '%s' "$HOME/.mosaic"
return
fi
printf '%s' "$MOSAIC_HOME"
}
check_brain_home() {
local brain agents mode
brain="$(resolve_brain_home)"
if [[ "$brain" == "$MOSAIC_HOME" ]]; then
# Implicit-path greenfield case (#1288 comment 23133, fred's trace): nothing
# in product code creates ~/.mosaic/fleet/agents — the first fleet write
# resolves legacy (generated-env-boundary resolves before creating) and
# then manufactures the evidence that keeps the host legacy. On a host with
# ~/.mosaic but no fleet/agents, the three operator checks all agree and all
# point the wrong way; this doctor is the only one that can disagree, so it
# must say it — as a note, not a warn: nothing is broken yet.
if [[ "$(cd "$MOSAIC_HOME" 2>/dev/null && pwd -P)" == "$HOME/.config/mosaic" \
&& -d "$HOME/.mosaic" && ! -d "$HOME/.mosaic/fleet/agents" ]]; then
note "Fleet state home: $MOSAIC_HOME (legacy). NOTE: ~/.mosaic exists but carries no fleet/agents — the first 'mosaic fleet regen' on this host locks in the legacy tree. Create ~/.mosaic/fleet/agents first to adopt the brain."
return
fi
pass "Fleet state home: $MOSAIC_HOME (legacy single-tree; no brain adopted)"
return
fi
agents="$brain/fleet/agents"
if [[ ! -d "$agents" ]]; then
warn "Brain home '$brain' has no fleet/agents — seat envs will not resolve from it. Point MOSAIC_BRAIN_HOME at a brain carrying fleet/agents, or unset it."
return
fi
if [[ -L "$brain" || -L "$agents" ]]; then
warn "Brain fleet-state path resolves through a symlink ($brain) — the managed-directory boundary requires regular directories."
return
fi
mode="$(stat -c '%a' -- "$agents" 2>/dev/null)" || mode=""
if [[ -n "$mode" ]] && (( (8#$mode & 8#077) != 0 )); then
warn "Brain agents dir '$agents' is group/world-accessible (mode $mode) — the projection boundary requires 0700."
return
fi
if [[ -d "$MOSAIC_HOME/fleet/agents" ]] \
&& ls "$MOSAIC_HOME/fleet/agents/"*.env* >/dev/null 2>&1; then
warn "Fleet env files exist in BOTH trees — brain '$brain' is active but '$MOSAIC_HOME/fleet/agents' still carries env files (split state). Migrate them (mosaic fleet regen) and remove the config-home copies."
return
fi
pass "Fleet state home: $brain (brain active); roster + templates: $MOSAIC_HOME"
}
check_fleet_transport() {
local transport
transport="$(fleet_declared_transport)"
if command -v "$transport" >/dev/null 2>&1; then
pass "Fleet transport available: $transport"
return
fi
if [[ -f "$MOSAIC_HOME/fleet/roster.yaml" ]]; then
warn "Fleet transport '$transport' is not installed — this host has a roster and no seat can launch. Install it (e.g. sudo apt-get install -y $transport), then 'mosaic fleet start'."
else
warn "Fleet transport '$transport' is not installed — 'mosaic fleet' cannot run seats here. Install it (e.g. sudo apt-get install -y $transport) before 'mosaic fleet init'."
fi
}
check_fleet_transport
check_brain_home
# Legacy migration surfaces should no longer contain symlink trees.
legacy_paths=(
"$HOME/.claude/agent-guides"
@@ -99,7 +99,7 @@ prompt_if_empty() {
if [[ $NON_INTERACTIVE -eq 1 ]]; then
if [[ -n "$default_value" ]]; then
eval "$var_name=\"$default_value\""
printf -v "$var_name" %s "$default_value"
return
fi
echo "[mosaic-init] ERROR: --$var_name is required in non-interactive mode" >&2
@@ -115,7 +115,7 @@ prompt_if_empty() {
if [[ -z "$value" && -n "$default_value" ]]; then
value="$default_value"
fi
eval "$var_name=\"$value\""
printf -v "$var_name" %s "$value"
}
prompt_multiline() {
@@ -129,7 +129,7 @@ prompt_multiline() {
fi
if [[ $NON_INTERACTIVE -eq 1 ]]; then
eval "$var_name=\"$default_value\""
printf -v "$var_name" %s "$default_value"
return
fi
@@ -139,7 +139,7 @@ prompt_multiline() {
if [[ -z "$value" ]]; then
value="$default_value"
fi
eval "$var_name=\"$value\""
printf -v "$var_name" %s "$value"
}
# ── Existing file detection ────────────────────────────────────
@@ -233,6 +233,14 @@ for runtime_file in \
copy_file_managed "$src" "$HOME/.claude/$runtime_file"
done
if [[ -d "$MOSAIC_HOME/runtime/claude/commands" ]]; then
mkdir -p "$HOME/.claude/commands"
for command_file in "$MOSAIC_HOME/runtime/claude/commands/"*; do
[[ -f "$command_file" ]] || continue
copy_file_managed "$command_file" "$HOME/.claude/commands/$(basename "$command_file")"
done
fi
# OpenCode runtime adapter (thin pointer to AGENTS.md)
opencode_adapter="$MOSAIC_HOME/runtime/opencode/AGENTS.md"
if [[ -f "$opencode_adapter" ]]; then
@@ -1,9 +1,14 @@
#!/usr/bin/env bash
set -euo pipefail
# Link the INSTALLED canonical skills into runtime skill directories.
#
# The canonical skills ship inside the framework package itself
# (packages/mosaic/framework/skills in the monorepo) and are installed into
# $MOSAIC_HOME/skills by the framework installer — there is no second
# repository to clone. This script only maintains the runtime symlinks.
MOSAIC_HOME="${MOSAIC_HOME:-$HOME/.config/mosaic}"
SKILLS_REPO_URL="${MOSAIC_SKILLS_REPO_URL:-https://git.mosaicstack.dev/mosaic/agent-skills.git}"
SKILLS_REPO_DIR="${MOSAIC_SKILLS_REPO_DIR:-$MOSAIC_HOME/sources/agent-skills}"
MOSAIC_SKILLS_DIR="$MOSAIC_HOME/skills"
MOSAIC_LOCAL_SKILLS_DIR="$MOSAIC_HOME/skills-local"
@@ -12,37 +17,34 @@ MOSAIC_LOCAL_SKILLS_DIR="$MOSAIC_HOME/skills-local"
# (the legacy "mosaic sync" full-catalog behavior).
MOSAIC_INSTALL_SKILLS="${MOSAIC_INSTALL_SKILLS:-}"
fetch=1
link_only=0
usage() {
cat <<USAGE
Usage: $(basename "$0") [options]
Sync canonical skills into ~/.config/mosaic/skills and link all Mosaic skills into runtime skill directories.
Link installed skills from ~/.config/mosaic/{skills,skills-local} into runtime
skill directories. Canonical skills arrive with the framework installer; this
script never clones or pulls a second repository.
Options:
--link-only Skip git clone/pull and only relink from ~/.config/mosaic/{skills,skills-local}
--no-link Sync canonical skills but do not update runtime links
--link-only Accepted for compatibility; linking is now the whole job
--no-link Do nothing (kept for compatibility)
-h, --help Show help
Env:
MOSAIC_HOME Default: ~/.config/mosaic
MOSAIC_SKILLS_REPO_URL Default: https://git.mosaicstack.dev/mosaic/agent-skills.git
MOSAIC_SKILLS_REPO_DIR Default: ~/.config/mosaic/sources/agent-skills
MOSAIC_INSTALL_SKILLS Colon-separated list of skills to link (default: all)
MOSAIC_HOME Default: ~/.config/mosaic
MOSAIC_INSTALL_SKILLS Colon-separated list of skills to link (default: all)
USAGE
}
while [[ $# -gt 0 ]]; do
case "$1" in
--link-only)
fetch=0
# Compat no-op: fetching a skills repo no longer exists.
shift
;;
--no-link)
link_only=1
shift
echo "[mosaic-skills] Nothing to do (--no-link; canonical skills ship with the installer)"
exit 0
;;
-h|--help)
usage
@@ -58,102 +60,30 @@ done
mkdir -p "$MOSAIC_HOME" "$MOSAIC_SKILLS_DIR" "$MOSAIC_LOCAL_SKILLS_DIR"
if [[ $fetch -eq 1 ]]; then
if [[ -d "$SKILLS_REPO_DIR/.git" ]]; then
echo "[mosaic-skills] Updating skills source: $SKILLS_REPO_DIR"
# ── Detect dirty state ──────────────────────────────────────────────
dirty=""
dirty="$(git -C "$SKILLS_REPO_DIR" status --porcelain 2>/dev/null || true)"
if [[ -n "$dirty" ]]; then
# ── Auto-migrate customized skills to skills-local/ ─────────────
# Instead of stash/pop (fragile, merge conflicts), we:
# 1. Identify which skill dirs contain user edits
# 2. Copy those full skill dirs into skills-local/ (preserving edits)
# 3. Reset the repo clean so pull always succeeds
# 4. skills-local/ takes precedence during linking, so edits win
SOURCE_SKILLS_SUBDIR="$SKILLS_REPO_DIR/skills"
migrated=()
while IFS= read -r line; do
# porcelain format: XY <path> — extract the file path
file="${line:3}"
# Only migrate files under skills/ subdir in the repo
if [[ "$file" == skills/* ]]; then
# Extract the skill directory name (first path component after skills/)
skill_name="${file#skills/}"
skill_name="${skill_name%%/*}"
# Skip if already migrated this skill in this run
local_skill_dir="$MOSAIC_LOCAL_SKILLS_DIR/$skill_name"
if [[ -d "$local_skill_dir" ]]; then
continue
fi
# Skip if skill_name is empty or hidden
if [[ -z "$skill_name" || "$skill_name" == .* ]]; then
continue
fi
# Copy the skill (with user's edits) from repo working tree to skills-local/
if [[ -d "$SOURCE_SKILLS_SUBDIR/$skill_name" ]]; then
cp -R "$SOURCE_SKILLS_SUBDIR/$skill_name" "$local_skill_dir"
migrated+=("$skill_name")
fi
fi
done <<< "$dirty"
if [[ ${#migrated[@]} -gt 0 ]]; then
echo "[mosaic-skills] Migrated ${#migrated[@]} customized skill(s) to skills-local/:"
for s in "${migrated[@]}"; do
echo " → $MOSAIC_LOCAL_SKILLS_DIR/$s"
done
echo "[mosaic-skills] Your edits are preserved there and take precedence over canonical."
fi
# Reset repo to clean state so pull always works
echo "[mosaic-skills] Resetting source repo to clean state..."
git -C "$SKILLS_REPO_DIR" checkout . 2>/dev/null || true
git -C "$SKILLS_REPO_DIR" clean -fd 2>/dev/null || true
fi
if ! git -C "$SKILLS_REPO_DIR" pull --rebase 2>/dev/null; then
echo "[mosaic-skills] WARN: pull failed — continuing with existing checkout" >&2
git -C "$SKILLS_REPO_DIR" rebase --abort 2>/dev/null || true
fi
else
echo "[mosaic-skills] Cloning skills source to: $SKILLS_REPO_DIR"
mkdir -p "$(dirname "$SKILLS_REPO_DIR")"
git clone "$SKILLS_REPO_URL" "$SKILLS_REPO_DIR"
fi
SOURCE_SKILLS_DIR="$SKILLS_REPO_DIR/skills"
if [[ ! -d "$SOURCE_SKILLS_DIR" ]]; then
echo "[mosaic-skills] Missing source skills dir: $SOURCE_SKILLS_DIR" >&2
exit 1
fi
if command -v rsync >/dev/null 2>&1; then
rsync -a --delete "$SOURCE_SKILLS_DIR/" "$MOSAIC_SKILLS_DIR/"
else
rm -rf "$MOSAIC_SKILLS_DIR"/*
cp -R "$SOURCE_SKILLS_DIR"/* "$MOSAIC_SKILLS_DIR"/
fi
fi
if [[ ! -d "$MOSAIC_SKILLS_DIR" ]]; then
echo "[mosaic-skills] Canonical skills dir missing: $MOSAIC_SKILLS_DIR" >&2
echo "[mosaic-skills] Canonical skills ship with the framework — reinstall or update the framework package" >&2
exit 1
fi
if [[ $link_only -eq 1 ]]; then
echo "[mosaic-skills] Canonical sync completed (link update skipped)"
exit 0
fi
# Skills are linked into the MOSAIC-OWNED harness homes, never a base install.
# Paths mirror the config-dir env vars the launcher injects (HARNESS_HOME_ENV in
# commands/launch.js):
# claude CLAUDE_CONFIG_DIR -> <home>/skills
# pi PI_CODING_AGENT_DIR -> <home>/skills (replaces ~/.pi/agent)
# codex CODEX_HOME -> <home>/skills
# opencode XDG_CONFIG_HOME -> <home>/opencode/skills (XDG adds a level)
link_targets=(
"$MOSAIC_HOME/.claude/skills"
"$MOSAIC_HOME/.codex/skills"
"$MOSAIC_HOME/.opencode/opencode/skills"
"$MOSAIC_HOME/.pi/skills"
)
# Pre-isolation installs planted the same symlink farm directly in the operator's
# base installs. Those are now orphaned: the launcher no longer reads them, but
# they persist and make a "clean" base install look mosaic-managed.
legacy_link_targets=(
"$HOME/.claude/skills"
"$HOME/.codex/skills"
"$HOME/.config/opencode/skills"
@@ -245,13 +175,72 @@ prune_stale_links_in_target() {
# -m resolves lexical dangling targets too. If resolution fails, ownership
# is unproven and the link must be preserved.
resolved="$(readlink -m "$link_path" 2>/dev/null || true)"
if [[ -n "$resolved" && "$resolved" == "$canonical_real/"* ]]; then
# $canonical_real must be length-checked BEFORE use as a prefix: if it were
# ever empty, "$resolved" == "$canonical_real/"* collapses to == "/"* and
# matches every absolute path. Combined with the is_mosaic_skill_name skip
# above, that inverts the function precisely — it would delete exactly the
# FOREIGN symlinks and keep the mosaic ones. (#1087, reported by mos-claude.)
if [[ -n "$resolved" && -n "$canonical_real" && "$resolved" == "$canonical_real/"* ]]; then
rm -f "$link_path"
echo "[mosaic-skills] Removed stale retired skill link: $link_path"
fi
done < <(find "$target_dir" -mindepth 1 -maxdepth 1 -type l -print0)
}
# Remove mosaic-owned symlinks left in a base install by a pre-isolation sync.
#
# Ownership is proven by RESOLUTION, not by name: only links resolving inside the
# canonical or local skills dirs are removed. Anything else — a real directory, a
# link elsewhere, an unresolvable link — is left untouched. This mirrors the
# refusal in commands/skill.js ("only symlinks pointing inside the Mosaic skills
# directory are managed") and preserves e.g. codex's own `.system` dir.
#
# The directory itself is kept: mosaic-doctor warns when ~/.pi/agent/skills is
# missing, and an empty dir is the correct end state, not an absent one.
cleanup_legacy_target() {
local target_dir="$1"
local removed=0 kept=0
[[ -d "$target_dir" ]] || return 0
while IFS= read -r -d '' link_path; do
local resolved owned=0
resolved="$(readlink -m "$link_path" 2>/dev/null || true)"
# Guard the empty-prefix trap: an unset *_real would make "$resolved" == "/"*
# match every absolute path and delete foreign links.
if [[ -n "$resolved" ]]; then
if [[ -n "$canonical_real" && "$resolved" == "$canonical_real/"* ]]; then
owned=1
elif [[ -n "$local_real" && "$resolved" == "$local_real/"* ]]; then
owned=1
fi
fi
if [[ $owned -eq 1 ]]; then
rm -f "$link_path"
removed=$((removed + 1))
else
kept=$((kept + 1))
fi
done < <(find "$target_dir" -mindepth 1 -maxdepth 1 -type l -print0)
if [[ $removed -gt 0 ]]; then
echo "[mosaic-skills] Legacy cleanup: removed $removed mosaic symlink(s) from $target_dir (preserved $kept foreign)"
fi
}
for legacy in "${legacy_link_targets[@]}"; do
# Skip anything that is also a current target, so isolation can never
# self-destruct if the two lists ever overlap.
skip=0
for target in "${link_targets[@]}"; do
[[ "$legacy" == "$target" ]] && skip=1
done
[[ $skip -eq 1 ]] && continue
cleanup_legacy_target "$legacy"
done
for target in "${link_targets[@]}"; do
mkdir -p "$target"
@@ -1,5 +1,8 @@
# mosaic-sync-skills.ps1
# Syncs canonical skills and links them into agent runtime skill directories.
# Links the INSTALLED canonical skills into agent runtime skill directories.
# Canonical skills ship inside the framework package and are installed into
# ~/.config/mosaic/skills by the framework installer — there is no second
# repository to clone. This script only maintains the runtime links.
# Uses directory junctions (no elevation required) with fallback to copies.
# PowerShell equivalent of mosaic-sync-skills (bash).
$ErrorActionPreference = "Stop"
@@ -11,8 +14,6 @@ param(
)
$MosaicHome = if ($env:MOSAIC_HOME) { $env:MOSAIC_HOME } else { Join-Path $env:USERPROFILE ".config\mosaic" }
$SkillsRepoUrl = if ($env:MOSAIC_SKILLS_REPO_URL) { $env:MOSAIC_SKILLS_REPO_URL } else { "https://git.mosaicstack.dev/mosaic/agent-skills.git" }
$SkillsRepoDir = if ($env:MOSAIC_SKILLS_REPO_DIR) { $env:MOSAIC_SKILLS_REPO_DIR } else { Join-Path $MosaicHome "sources\agent-skills" }
$MosaicSkillsDir = Join-Path $MosaicHome "skills"
$MosaicLocalSkillsDir = Join-Path $MosaicHome "skills-local"
@@ -20,45 +21,25 @@ if ($Help) {
Write-Host @"
Usage: mosaic-sync-skills.ps1 [-LinkOnly] [-NoLink] [-Help]
Sync canonical skills into ~/.config/mosaic/skills and link all Mosaic skills
into runtime skill directories using directory junctions.
Link installed skills from ~/.config/mosaic/{skills,skills-local} into runtime
skill directories using directory junctions. Canonical skills arrive with the
framework installer; this script never clones or pulls a second repository.
Options:
-LinkOnly Skip git clone/pull and only relink
-NoLink Sync canonical skills but do not update runtime links
-LinkOnly Accepted for compatibility; linking is now the whole job
-NoLink Do nothing (kept for compatibility)
-Help Show help
"@
exit 0
}
foreach ($d in @($MosaicHome, $MosaicSkillsDir, $MosaicLocalSkillsDir)) {
if (-not (Test-Path $d)) { New-Item -ItemType Directory -Path $d -Force | Out-Null }
if ($NoLink) {
Write-Host "[mosaic-skills] Nothing to do (-NoLink; canonical skills ship with the installer)"
exit 0
}
# Fetch skills from git
if (-not $LinkOnly) {
if (Test-Path (Join-Path $SkillsRepoDir ".git")) {
Write-Host "[mosaic-skills] Updating skills source: $SkillsRepoDir"
git -C $SkillsRepoDir pull --rebase
}
else {
Write-Host "[mosaic-skills] Cloning skills source to: $SkillsRepoDir"
$parentDir = Split-Path $SkillsRepoDir -Parent
if (-not (Test-Path $parentDir)) { New-Item -ItemType Directory -Path $parentDir -Force | Out-Null }
git clone $SkillsRepoUrl $SkillsRepoDir
}
$sourceSkillsDir = Join-Path $SkillsRepoDir "skills"
if (-not (Test-Path $sourceSkillsDir)) {
Write-Host "[mosaic-skills] Missing source skills dir: $sourceSkillsDir" -ForegroundColor Red
exit 1
}
# Sync: remove old, copy new
if (Test-Path $MosaicSkillsDir) {
Get-ChildItem $MosaicSkillsDir | Remove-Item -Recurse -Force
}
Copy-Item "$sourceSkillsDir\*" $MosaicSkillsDir -Recurse -Force
foreach ($d in @($MosaicHome, $MosaicSkillsDir, $MosaicLocalSkillsDir)) {
if (-not (Test-Path $d)) { New-Item -ItemType Directory -Path $d -Force | Out-Null }
}
if (-not (Test-Path $MosaicSkillsDir)) {
@@ -0,0 +1,127 @@
#!/usr/bin/env bash
# Covers the brain-home fleet-state check in `mosaic-doctor` (#1298 follow-up).
#
# The functions are extracted from the shipped script rather than copied here
# (same discipline as test-fleet-transport-check.sh): a test that carries its
# own copy of the logic keeps passing after the shipped copy changes.
# Extraction is by exact function header and a closing brace in column one.
set -euo pipefail
SCRIPT_DIR=$(cd -- "$(dirname "$0")" && pwd)
DOCTOR="$SCRIPT_DIR/mosaic-doctor"
fail() {
echo "FAIL: $*" >&2
exit 1
}
[ -f "$DOCTOR" ] || fail "missing mosaic-doctor at $DOCTOR"
extract_function() {
local name="$1"
local extracted
extracted=$(sed -n "/^${name}() {/,/^}/p" "$DOCTOR")
[ -n "$extracted" ] || fail "could not extract ${name}() from mosaic-doctor — script reshaped?"
printf '%s\n' "$extracted"
}
for fn in resolve_brain_home check_brain_home; do
extract_function "$fn" >/dev/null
done
warn_count=0
warn() { warn_count=$((warn_count + 1)); echo "[WARN] $*"; }
pass() { echo "[OK] $*"; return 0; }
eval "$(extract_function resolve_brain_home)"
eval "$(extract_function check_brain_home)"
ROOT=$(mktemp -d)
trap 'rm -rf "$ROOT"' EXIT
# note output is neither [OK] nor [WARN] — assert it directly in the case below.
run_case() {
# label, expect (ok|warn|note), then env assignments as arguments.
# The check runs under `env` in a subshell, so its warn() also prints a
# sentinel the parent counts — a subshell counter would never be visible.
local label="$1" expect="$2"
shift 2
local out warns notes
out=$(env "$@" bash -c "warn() { echo \"[WARN] \$*\"; }; note() { echo \"[NOTE] \$*\"; return 0; }; pass() { echo \"[OK] \$*\"; return 0; }; $(extract_function resolve_brain_home); $(extract_function check_brain_home); check_brain_home" 2>&1)
warns=$(printf '%s\n' "$out" | grep -c '^\[WARN\]' || true)
notes=$(printf '%s\n' "$out" | grep -c '^\[NOTE\]' || true)
if [[ "$expect" == ok && "$warns" -eq 0 && "$notes" -eq 0 ]]; then
echo "ok - $label"
elif [[ "$expect" == warn && "$warns" -gt 0 ]]; then
echo "ok - $label (warned)"
elif [[ "$expect" == note && "$notes" -gt 0 ]]; then
echo "ok - $label (noted)"
else
echo "output: $out" >&2
fail "$label: expected $expect (warns=$warns notes=$notes)"
fi
}
# ── legacy: no brain, custom home never adopts ─────────────────────────────
mkdir -p "$ROOT/legacy-mosaic/fleet/agents"
run_case "custom home without brain stays legacy" ok \
MOSAIC_HOME="$ROOT/legacy-mosaic" HOME="$ROOT"
# ── healthy brain at the default config home ───────────────────────────────
mkdir -p "$ROOT/home/.config/mosaic" "$ROOT/home/.mosaic/fleet/agents"
chmod 700 "$ROOT/home/.mosaic/fleet/agents"
run_case "default home adopts healthy brain" ok \
MOSAIC_HOME="$ROOT/home/.config/mosaic" HOME="$ROOT/home"
# ── explicit MOSAIC_BRAIN_HOME to a brain without fleet/agents → warn ──────
mkdir -p "$ROOT/brain-noagents/fleet" "$ROOT/config"
run_case "explicit brain without agents warns" warn \
MOSAIC_HOME="$ROOT/config" HOME="$ROOT" MOSAIC_BRAIN_HOME="$ROOT/brain-noagents"
# ── explicit MOSAIC_BRAIN_HOME to a healthy brain → ok ─────────────────────
mkdir -p "$ROOT/brain-ok/fleet/agents" "$ROOT/config2"
chmod 700 "$ROOT/brain-ok/fleet/agents"
run_case "explicit healthy brain passes" ok \
MOSAIC_HOME="$ROOT/config2" HOME="$ROOT" MOSAIC_BRAIN_HOME="$ROOT/brain-ok"
# ── group-readable agents dir → warn (0700 boundary) ───────────────────────
mkdir -p "$ROOT/brain-loose/fleet/agents" "$ROOT/config3"
chmod 750 "$ROOT/brain-loose/fleet/agents"
run_case "group-readable brain agents warns" warn \
MOSAIC_HOME="$ROOT/config3" HOME="$ROOT" MOSAIC_BRAIN_HOME="$ROOT/brain-loose"
# ── symlinked agents dir → warn (managed-directory boundary) ───────────────
mkdir -p "$ROOT/brain-link/real-agents" "$ROOT/brain-link/fleet" "$ROOT/config4"
ln -s "$ROOT/brain-link/real-agents" "$ROOT/brain-link/fleet/agents"
run_case "symlinked brain agents warns" warn \
MOSAIC_HOME="$ROOT/config4" HOME="$ROOT" MOSAIC_BRAIN_HOME="$ROOT/brain-link"
# ── split state: envs in BOTH trees → warn ─────────────────────────────────
mkdir -p "$ROOT/brain-split/fleet/agents" "$ROOT/config5/fleet/agents"
chmod 700 "$ROOT/brain-split/fleet/agents" "$ROOT/config5/fleet/agents"
touch "$ROOT/config5/fleet/agents/coder0.env.generated"
run_case "env files in both trees warns (split state)" warn \
MOSAIC_HOME="$ROOT/config5" HOME="$ROOT" MOSAIC_BRAIN_HOME="$ROOT/brain-split"
# ── config-home agents dir WITHOUT env files alongside a brain → ok ────────
mkdir -p "$ROOT/brain-clean/fleet/agents" "$ROOT/config6/fleet/agents"
chmod 700 "$ROOT/brain-clean/fleet/agents" "$ROOT/config6/fleet/agents"
run_case "empty config-home agents dir alongside brain passes" ok \
MOSAIC_HOME="$ROOT/config6" HOME="$ROOT" MOSAIC_BRAIN_HOME="$ROOT/brain-clean"
# ── greenfield brain-without-agents at the default home → note (#1288) ─────
mkdir -p "$ROOT/gf-home/.config/mosaic/fleet" "$ROOT/gf-home/.mosaic"
run_case "~/.mosaic without fleet/agents at default home notes the lock-in" note \
MOSAIC_HOME="$ROOT/gf-home/.config/mosaic" HOME="$ROOT/gf-home"
# ── no ~/.mosaic at all at the default home → clean pass ─────────────────
mkdir -p "$ROOT/plain-home/.config/mosaic/fleet"
run_case "no ~/.mosaic at default home passes silently" ok \
MOSAIC_HOME="$ROOT/plain-home/.config/mosaic" HOME="$ROOT/plain-home"
# ── custom (non-default) home with a stray ~/.mosaic → still silent ──────
mkdir -p "$ROOT/custom-home/fleet/agents" "$ROOT/custom-home/.mosaic"
run_case "custom home with stray ~/.mosaic stays silent" ok \
MOSAIC_HOME="$ROOT/custom-home" HOME="$ROOT/custom-home"
echo "ok - mosaic-doctor brain-home check"
@@ -0,0 +1,215 @@
#!/usr/bin/env bash
# Covers the #1240 fleet-transport checks in `mosaic-doctor` and in
# `tools/install.sh`.
#
# Both checks answer the same question — "can a seat actually launch on this
# host?" — from two different places, because the installer has to be able to
# answer it before the framework's own scripts are guaranteed to be on disk.
# Two implementations of one rule is exactly the shape that drifts, so this
# harness drives BOTH, in one file, from the same table of cases.
#
# The functions are extracted from the shipped scripts rather than copied here.
# A test that carries its own copy of the logic is a test that keeps passing
# after the shipped copy changes — the failure mode this whole change is about.
# Extraction is by exact function header and a closing brace in column one; if
# either script is reshaped so that stops matching, the extraction yields
# nothing and this fails loudly instead of silently measuring an empty string.
set -euo pipefail
SCRIPT_DIR=$(cd -- "$(dirname -- "$0")" && pwd)
DOCTOR="$SCRIPT_DIR/mosaic-doctor"
# framework/tools/_scripts -> framework/tools -> framework -> mosaic -> packages -> repo
INSTALLER=$(cd -- "$SCRIPT_DIR/../../../../.." && pwd)/tools/install.sh
fail() {
echo "FAIL: $*" >&2
exit 1
}
[ -f "$DOCTOR" ] || fail "missing mosaic-doctor at $DOCTOR"
[ -f "$INSTALLER" ] || fail "missing install.sh at $INSTALLER"
ROOT=$(mktemp -d)
trap 'rm -rf "$ROOT"' EXIT
# The cases below run with PATH set to a directory that deliberately does not
# contain a shell, and a PATH assignment on a command also governs how that
# command is looked up — so bash has to be named absolutely or it becomes the
# thing that is missing.
BASH_BIN=$(command -v bash) || fail "host is missing 'bash'"
# A PATH containing exactly the utilities these functions use and nothing else.
# The absent-transport cases are only meaningful on a PATH where the transport
# is genuinely unresolvable, and this host (like most) has tmux in /usr/bin —
# so the system path cannot be part of the path under test.
FAKE_BIN="$ROOT/bin"
mkdir -p "$FAKE_BIN"
for utility in sed head tr awk; do
utility_path=$(command -v "$utility") || fail "host is missing '$utility'"
ln -s "$utility_path" "$FAKE_BIN/$utility"
done
if PATH="$FAKE_BIN" command -v tmux >/dev/null 2>&1; then
fail "'tmux' is resolvable on the minimal test path; absent-transport cases are not measurable"
fi
# Extract a function by its exact header, up to a closing brace in column one.
extract_function() {
local source_file="$1"
local function_name="$2"
local destination="$3"
awk -v name="$function_name" '
$0 == name "() {" { collecting = 1 }
collecting { print }
collecting && $0 == "}" { exit }
' "$source_file" > "$destination"
grep -qF "$function_name() {" "$destination" ||
fail "could not extract '$function_name' from $source_file — has it been renamed or reshaped?"
# An unterminated extraction would be a syntax error the moment it is sourced,
# but saying so here names the cause instead of leaving a bash parse error.
bash -n "$destination" ||
fail "extracted '$function_name' does not parse; the closing brace was probably not found"
}
extract_function "$DOCTOR" fleet_declared_transport "$ROOT/doctor-declared.sh"
extract_function "$DOCTOR" check_fleet_transport "$ROOT/doctor-check.sh"
extract_function "$INSTALLER" check_fleet_transport "$ROOT/installer-check.sh"
# Build a MOSAIC_HOME, optionally with a roster declaring a transport.
make_home() {
local home="$ROOT/$1"
local declared="${2-}"
rm -rf "$home"
mkdir -p "$home"
if [ -n "$declared" ]; then
mkdir -p "$home/fleet"
cat > "$home/fleet/roster.yaml" <<EOF
version: 2
generation: 1
transport: $declared
agents: []
EOF
fi
printf '%s\n' "$home"
}
# Run the doctor's check against a given home and path, capturing which
# reporter the check chose. The real `pass` prints only under `--verbose` and
# the real `warn` always prints; these stubs make both unconditional on
# purpose, because what is under test is the severity the check selects, not
# whether the default verbosity happens to show it. A check that warned where
# it should pass would otherwise be invisible here.
run_doctor_check() {
local home="$1"
local path="$2"
MOSAIC_HOME="$home" PATH="$path" "$BASH_BIN" --noprofile --norc -c '
set -euo pipefail
warn() { echo "[WARN] $*"; }
pass() { echo "[OK] $*"; }
MOSAIC_HOME="$1"
source "$2"
source "$3"
check_fleet_transport
' _ "$home" "$ROOT/doctor-declared.sh" "$ROOT/doctor-check.sh" 2>&1
}
run_installer_check() {
local home="$1"
local path="$2"
MOSAIC_HOME="$home" PATH="$path" "$BASH_BIN" --noprofile --norc -c '
set -euo pipefail
warn() { echo "[WARN] $*"; }
C="" RESET=""
MOSAIC_HOME="$1"
source "$2"
check_fleet_transport
' _ "$home" "$ROOT/installer-check.sh" 2>&1
}
# A transport that exists. Named tmux because that is what the default roster
# declares; the binary never runs, it only has to resolve.
PRESENT_BIN="$ROOT/present-bin"
mkdir -p "$PRESENT_BIN"
printf '#!/usr/bin/env bash\nexit 0\n' > "$PRESENT_BIN/tmux"
chmod +x "$PRESENT_BIN/tmux"
PATH_WITH_TMUX="$PRESENT_BIN:$FAKE_BIN"
# ── absent, no roster ────────────────────────────────────────────────────────
# Nothing has been configured yet, so the honest thing to point at is `init`.
home=$(make_home no-roster)
output=$(run_doctor_check "$home" "$FAKE_BIN")
echo "$output" | grep -qF '[WARN]' || fail "doctor did not warn when tmux was absent"
echo "$output" | grep -qF 'tmux' || fail "doctor warning did not name the transport"
echo "$output" | grep -qF 'mosaic fleet init' || fail "doctor did not point a rosterless host at init"
output=$(run_installer_check "$home" "$FAKE_BIN")
echo "$output" | grep -qF '[WARN]' || fail "installer did not warn when tmux was absent"
echo "$output" | grep -qF 'reports success and no seat comes up' ||
fail "installer warning did not say what the missing transport actually breaks"
# ── absent, roster present ───────────────────────────────────────────────────
# A configured fleet that cannot launch is a stronger statement than a
# hypothetical one, and the message says so.
home=$(make_home with-roster tmux)
output=$(run_doctor_check "$home" "$FAKE_BIN")
echo "$output" | grep -qF '[WARN]' || fail "doctor did not warn with a roster present and tmux absent"
echo "$output" | grep -qF 'roster' || fail "doctor did not mention the roster it found"
echo "$output" | grep -qF 'mosaic fleet start' || fail "doctor did not point a configured host at start"
# ── present ──────────────────────────────────────────────────────────────────
# Silence from the installer, and a pass (not a warning) from the audit.
for home_name in no-roster with-roster; do
home="$ROOT/$home_name"
output=$(run_doctor_check "$home" "$PATH_WITH_TMUX")
if echo "$output" | grep -qF '[WARN]'; then
fail "doctor warned about the transport while tmux was present ($home_name)"
fi
echo "$output" | grep -qF '[OK]' || fail "doctor did not record a pass with tmux present ($home_name)"
output=$(run_installer_check "$home" "$PATH_WITH_TMUX")
if [ -n "$output" ]; then
fail "installer was not silent with tmux present ($home_name): $output"
fi
done
# ── the roster declares something other than tmux ────────────────────────────
# The roster is read, not assumed. A host that declares a different transport
# is told about the binary it actually needs, and never about tmux — being sent
# to install the wrong package is worse than no advice at all.
home=$(make_home other-transport zellij)
output=$(run_doctor_check "$home" "$PATH_WITH_TMUX")
echo "$output" | grep -qF 'zellij' || fail "doctor ignored the roster's declared transport"
if echo "$output" | grep -qF 'tmux'; then
fail "doctor named tmux for a host whose roster declares zellij"
fi
output=$(run_installer_check "$home" "$PATH_WITH_TMUX")
echo "$output" | grep -qF 'zellij' || fail "installer ignored the roster's declared transport"
if echo "$output" | grep -qF 'tmux'; then
fail "installer named tmux for a host whose roster declares zellij"
fi
# ── a quoted or trailing-comment transport value ─────────────────────────────
# YAML permits both and neither is exotic; a check that installs `tmux"` or
# reads `tmux # default` as a binary name would send the operator nowhere.
home=$(make_home quoted-transport '"tmux" # the only transport today')
output=$(run_doctor_check "$home" "$PATH_WITH_TMUX")
echo "$output" | grep -qF '[OK] Fleet transport available: tmux' ||
fail "doctor did not parse a quoted/commented transport value: $output"
output=$(run_installer_check "$home" "$PATH_WITH_TMUX")
if [ -n "$output" ]; then
fail "installer did not parse a quoted/commented transport value: $output"
fi
echo "ok - fleet transport checks (mosaic-doctor + install.sh)"
@@ -0,0 +1,21 @@
#!/usr/bin/env bash
set -euo pipefail
# Source only the prompt helpers; executing mosaic-init itself requires templates.
source <(head -n 144 "$(dirname "$0")/mosaic-init")
rm -f /tmp/pwned
payload='literal "$(touch /tmp/pwned)"'
AGENT_NAME=""
prompt_if_empty AGENT_NAME "Agent name" <<<"$payload"
[[ "$AGENT_NAME" == "$payload" ]] || {
echo "FAIL: prompt answer did not round-trip literally" >&2
exit 1
}
[[ ! -e /tmp/pwned ]] || {
echo "FAIL: prompt answer executed code" >&2
rm -f /tmp/pwned
exit 1
}
echo "mosaic-init RCE regression: PASS"
@@ -27,7 +27,7 @@ Manage Coolify container deployment platform (projects, services, deployments, e
## API Reference
- Base URL: `http://10.1.1.44:8000`
- Base URL: `http://coolify.example.internal:8000`
- API prefix: `/api/v1/`
- Auth: Bearer token in `Authorization` header
- Rate limit: 200 requests per interval
@@ -80,6 +80,26 @@ safe_path "$MOSAIC_HOME" || fail_env unsafe-path MOSAIC_HOME "$MOSAIC_HOME"
FLEET_DIR="$MOSAIC_HOME/fleet"
AGENT_ENV_DIR="$FLEET_DIR/agents"
# Brain-home split (canon docs/STRUCTURE-CANON.md §2): seat launch envs live
# under the brain home's fleet/agents when a brain is active; roster, roles
# baseline, and runtime state (fleet/run) stay under MOSAIC_HOME.
# Resolution mirrors packages/mosaic/src/fleet/brain-home.ts:
# 1. MOSAIC_BRAIN_HOME env (explicit, always wins)
# 2. ~/.mosaic — adopted only when MOSAIC_HOME is the default config home AND
# ~/.mosaic/fleet/agents exists
# 3. MOSAIC_HOME (legacy single-tree)
BRAIN_HOME="${MOSAIC_BRAIN_HOME:-}"
if [ -z "$BRAIN_HOME" ]; then
BRAIN_HOME="$MOSAIC_HOME"
if [ "$(cd "$MOSAIC_HOME" 2>/dev/null && pwd -P)" = "$HOME/.config/mosaic" ] \
&& [ -d "$HOME/.mosaic/fleet/agents" ]; then
BRAIN_HOME="$HOME/.mosaic"
fi
fi
if [ "$BRAIN_HOME" != "$MOSAIC_HOME" ]; then
AGENT_ENV_DIR="$BRAIN_HOME/fleet/agents"
fi
assert_managed_directory "$MOSAIC_HOME"
assert_managed_directory "$FLEET_DIR"
assert_private_directory "$AGENT_ENV_DIR"
@@ -286,6 +306,36 @@ _build_runtime_bin_prefix() {
MOSAIC_RUNTIME_BIN_PREFIX=$(_build_runtime_bin_prefix)
PANE_PATH=${MOSAIC_RUNTIME_BIN_PREFIX:+${MOSAIC_RUNTIME_BIN_PREFIX}:}/usr/local/bin:/usr/bin:/bin
# #1241. The pane runs `mosaic yolo <runtime>` under PANE_PATH with a cleared
# environment. A binary missing from *that* path is a pane that dies in under a
# second, inside a session nobody is attached to, with its diagnostic scrolled
# into a pane tmux then destroys. Resolve both here, before any effect, where
# the failure is still attributable to the thing that caused it.
#
# `mosaic yolo <runtime>` runs checkRuntime(runtime) and the binary it looks for
# is named exactly like the runtime, so resolving the runtime name is the same
# question the pane will ask a moment later — asked while an operator can still
# see the answer.
_resolve_in_pane_path() {
PATH="$PANE_PATH" command -v -- "$1" 2>/dev/null
}
# Exit 69 (EX_UNAVAILABLE): the seat cannot be provided. Distinguished from the
# 64 (EX_USAGE) rejections above, which mean the projection itself was bad —
# here the data is fine and the host is not ready. Callers tell the individual
# cases apart by `code=`, the same way fail_env's many codes share exit 64.
fail_launch() {
local code="$1"
shift
echo "ERROR: agent launch aborted: code=${code} agent=${AGENT_NAME} $*" >&2
exit 69
}
for required_binary in mosaic "$MOSAIC_AGENT_RUNTIME"; do
_resolve_in_pane_path "$required_binary" >/dev/null ||
fail_launch missing-binary "'${required_binary}' is not on the pane PATH (${PANE_PATH})"
done
_ensure_claude_workdir_trusted() {
local workdir="$1"
local resolved
@@ -384,6 +434,19 @@ if [ -n "$PANE_PID" ]; then
_start_heartbeat_sidecar "$AGENT_NAME" "$PANE_PID" \
"$MOSAIC_HEARTBEAT_RUN_DIR" "$MOSAIC_HEARTBEAT_INTERVAL" || \
echo "WARNING: heartbeat sidecar could not be started for $AGENT_NAME" >&2
elif _tmux has-session -t "=${AGENT_NAME}:0.0" 2>/dev/null; then
# #1241. Session present, no pane PID after a second of retries. Whatever this
# is, it is not a seat an operator can use, so it is not a success either.
fail_launch pane-pid-unresolved \
"tmux reports the session but no pane PID after 5 attempts"
else
echo "WARNING: could not resolve pane PID for $AGENT_NAME — heartbeat sidecar not started" >&2
# #1241. This branch used to print a WARNING about the heartbeat sidecar and
# exit 0. It is not a heartbeat problem: tmux destroys a session when its pane
# command exits, so an absent session one second after new-session means the
# runtime died on startup. Reporting it as success is what let `fleet start`
# return 0 over three dead panes — the launcher knew, and said the wrong thing
# at the wrong severity to the wrong layer.
fail_launch pane-did-not-survive \
"the pane exited immediately and tmux destroyed the session;" \
"run 'mosaic yolo ${MOSAIC_AGENT_RUNTIME}' in ${MOSAIC_AGENT_WORKDIR} to see why"
fi
@@ -23,8 +23,26 @@ index=0
if [ "${args[0]:-}" = -L ]; then index=2; fi
case "${args[$index]:-}" in
has-session)
# The holder always answers. MOSAIC_TEST_HELD_SESSIONS lets a case add
# other targets that should answer too — without it there is no way to
# model "tmux still reports the session" for a non-holder agent, and the
# launcher's pane-pid-unresolved branch is unreachable from this harness.
#
# A listed target answers only AFTER new-session, because the launcher asks
# this question twice about the same name: once before launching, where a
# yes means "already running, nothing to do, exit 0", and once after, where
# a yes means "the session survived". A shim that answered yes to both
# would short-circuit at the first and never reach the branch under test —
# it would look like coverage and measure the idempotency path instead.
for argument in "${args[@]}"; do
[ "$argument" = '=_holder:0.0' ] && exit 0
case " ${MOSAIC_TEST_HELD_SESSIONS:-} " in
*" $argument "*)
if tr '\0' '\n' < "${MOSAIC_TEST_TMUX_CALLS:?}" | grep -qxF new-session; then
exit 0
fi
;;
esac
done
exit 1
;;
@@ -62,6 +80,30 @@ env -0 > "${MOSAIC_HOME:?}/fleet/pane-environment"
SHIM
chmod +x "$FAKE_BIN/mosaic"
# The runtime the rosters below name. The launcher resolves it against PANE_PATH
# before spawning (#1241), so it has to exist somewhere the pane would find it —
# not merely on the launcher's own PATH.
printf '#!/usr/bin/env bash\nexit 0\n' > "$FAKE_BIN/pi"
chmod +x "$FAKE_BIN/pi"
# PANE_PATH is derived partly from `npm config get prefix`. Left to the real npm
# it would splice whatever the host has installed into the path under test, and
# the missing-binary cases below would pass or fail by accident of the machine.
cat > "$FAKE_BIN/npm" <<'SHIM'
#!/usr/bin/env bash
printf '%s\n' "${MOSAIC_TEST_NPM_PREFIX:-/nonexistent}"
SHIM
chmod +x "$FAKE_BIN/npm"
# PANE_PATH always ends in the system path. A host that installs these there can
# not measure the missing-binary cases at all, and a green run would mean
# nothing — so say so instead of passing.
for host_binary in mosaic pi; do
if PATH=/usr/local/bin:/usr/bin:/bin command -v "$host_binary" >/dev/null 2>&1; then
fail "host provides '$host_binary' in the system path; missing-binary cases are not measurable here"
fi
done
write_generated() {
local home="$1"
local agent="$2"
@@ -81,6 +123,19 @@ MOSAIC_TMUX_SOCKET=mosaic-test
EOF
chmod 600 "$home/fleet/agents/$agent.env.generated"
mkdir -p "$home/work"
install_pane_binaries "$home"
}
# `$PANE_HOME/.npm-global/bin` is one of the prefixes the launcher folds into
# PANE_PATH, so this is the pane's own view of "installed", distinct from the
# launcher's PATH. Tests that need a binary *absent* remove it from here.
install_pane_binaries() {
local pane_home="$1"
mkdir -p "$pane_home/.npm-global/bin"
local binary
for binary in mosaic pi; do
ln -sf "$FAKE_BIN/$binary" "$pane_home/.npm-global/bin/$binary"
done
}
run_start() {
@@ -88,6 +143,7 @@ run_start() {
local agent="$2"
HOME="$home" PATH="$FAKE_BIN:$PATH" MOSAIC_TEST_TMUX_CALLS="$TMUX_CALLS" \
MOSAIC_TEST_PANE_PID="${MOSAIC_TEST_PANE_PID:-}" \
MOSAIC_TEST_HELD_SESSIONS="${MOSAIC_TEST_HELD_SESSIONS:-}" \
MOSAIC_TEST_HOME="$home" \
MOSAIC_TEST_FLEET_OWNER=123e4567-e89b-12d3-a456-426614174000 \
MOSAIC_HOME="$home" "$START" "$agent"
@@ -98,7 +154,10 @@ run_start() {
HOME_VALID="$ROOT/valid"
AGENT_VALID="coder0"
write_generated "$HOME_VALID" "$AGENT_VALID"
run_start "$HOME_VALID" "$AGENT_VALID"
# A live pane PID is part of what "valid launch" means. Until #1241 this case
# ran with none, so the suite's one success path was itself a dead pane the
# launcher reported as fine.
MOSAIC_TEST_PANE_PID=$$ run_start "$HOME_VALID" "$AGENT_VALID"
valid_args=$(tr '\0' '\n' < "$TMUX_CALLS")
echo "$valid_args" | grep -qF new-session || fail "valid generated projection did not reach tmux"
echo "$valid_args" | grep -qF 'mosaic' || fail "fixed mosaic launcher command missing"
@@ -108,6 +167,54 @@ if echo "$valid_args" | grep -qF 'bash -c'; then
fail "launcher constructed a shell command payload"
fi
# ── Brain-home split (canon §2) ─────────────────────────────────────────
# When MOSAIC_HOME is the default config home under $HOME and the host carries
# $HOME/.mosaic/fleet/agents, seat envs resolve from the brain tree; the config
# home still owns fleet/run (holder-owner) and remains a managed boundary.
: > "$TMUX_CALLS"
HOME_BRAIN="$ROOT/brain-home"
CONFIG_HOME="$HOME_BRAIN/.config/mosaic"
BRAIN="$HOME_BRAIN/.mosaic"
mkdir -p "$CONFIG_HOME/fleet/run" "$BRAIN/fleet/agents" "$HOME_BRAIN/work"
chmod 700 "$CONFIG_HOME" "$CONFIG_HOME/fleet" "$CONFIG_HOME/fleet/run" \
"$BRAIN/fleet/agents" "$HOME_BRAIN/work"
printf '123e4567-e89b-12d3-a456-426614174000\n' > "$CONFIG_HOME/fleet/run/holder-owner"
chmod 600 "$CONFIG_HOME/fleet/run/holder-owner"
cat > "$BRAIN/fleet/agents/coder-brain.env.generated" <<EOF
MOSAIC_AGENT_NAME=coder-brain
MOSAIC_AGENT_CLASS=code
MOSAIC_AGENT_RUNTIME=pi
MOSAIC_AGENT_MODEL=openai-codex/gpt-5.6-sol
MOSAIC_AGENT_REASONING=high
MOSAIC_AGENT_TOOL_POLICY=code
MOSAIC_AGENT_WORKDIR=$HOME_BRAIN/work
MOSAIC_TMUX_SOCKET=mosaic-test
EOF
chmod 600 "$BRAIN/fleet/agents/coder-brain.env.generated"
install_pane_binaries "$HOME_BRAIN"
HOME="$HOME_BRAIN" PATH="$FAKE_BIN:$PATH" MOSAIC_TEST_TMUX_CALLS="$TMUX_CALLS" \
MOSAIC_TEST_PANE_PID=$$ MOSAIC_TEST_HOME="$HOME_BRAIN" \
MOSAIC_TEST_FLEET_OWNER=123e4567-e89b-12d3-a456-426614174000 \
MOSAIC_HOME="$CONFIG_HOME" "$START" coder-brain
brain_args=$(tr '\0' '\n' < "$TMUX_CALLS")
echo "$brain_args" | grep -qF new-session || fail "brain-home generated projection did not reach tmux"
echo "$brain_args" | grep -qF 'coder-brain' || fail "brain-home agent env was not the launch source"
[ -f "$BRAIN/fleet/agents/coder-brain.env.generated" ] || fail "brain generated env vanished"
# Negative control: the SAME default-config-home shape but without
# ~/.mosaic/fleet/agents — the config-home env tree is used directly (legacy).
: > "$TMUX_CALLS"
HOME_NOBRAIN="$ROOT/brainless-home"
CONFIG_HOME_NOBRAIN="$HOME_NOBRAIN/.config/mosaic"
write_generated "$CONFIG_HOME_NOBRAIN" "coder-legacy"
install_pane_binaries "$HOME_NOBRAIN"
HOME="$HOME_NOBRAIN" PATH="$FAKE_BIN:$PATH" MOSAIC_TEST_TMUX_CALLS="$TMUX_CALLS" \
MOSAIC_TEST_PANE_PID=$$ MOSAIC_TEST_HOME="$HOME_NOBRAIN" \
MOSAIC_TEST_FLEET_OWNER=123e4567-e89b-12d3-a456-426614174000 \
MOSAIC_HOME="$CONFIG_HOME_NOBRAIN" "$START" coder-legacy
legacy_args=$(tr '\0' '\n' < "$TMUX_CALLS")
echo "$legacy_args" | grep -qF new-session || fail "legacy single-tree launch regressed"
# The pane must start through an absolute clean-environment boundary. Its
# runtime command remains an argv vector, but no holder/session environment
# control variable can pass through the pane command.
@@ -245,6 +352,13 @@ PANE_BASH_ENV="$ROOT/pane-boundary.bash-env"
printf 'MOSAIC_RUNTIME_BIN=%s\n' "$FAKE_BIN" > \
"$HOME_PANE_BOUNDARY/fleet/agents/coder-pane-boundary.env.local"
chmod 600 "$HOME_PANE_BOUNDARY/fleet/agents/coder-pane-boundary.env.local"
# This case does not go through run_start, so its pane binaries come from
# MOSAIC_RUNTIME_BIN=$FAKE_BIN in the env.local written above — not from the
# symlinks install_pane_binaries planted under the generated home, which this
# launcher never consults because HOME here is the trusted parent. That is a
# legitimate resolution path, but it means dropping MOSAIC_RUNTIME_BIN from
# this case on the belief that the symlinks cover it would break the #1241
# binary check rather than exercise it.
LD_PRELOAD='/not/loaded/by-clean-bootstrap.so' \
BASH_ENV="$PANE_BASH_ENV" \
MOSAIC_UNTRUSTED_SENTINEL='must-not-reach-pane' \
@@ -258,6 +372,7 @@ PATH="$PANE_STALE_PATH" \
"MOSAIC_TEST_HOME=$PANE_TRUSTED_HOME" \
MOSAIC_TEST_FLEET_OWNER=123e4567-e89b-12d3-a456-426614174000 \
MOSAIC_TEST_EXECUTE_PANE=1 \
"MOSAIC_TEST_PANE_PID=$$" \
"$START" coder-pane-boundary
pane_args=$(tr '\0' '\n' < "$TMUX_CALLS")
echo "$pane_args" | grep -qxF "HOME=$PANE_TRUSTED_HOME" || \
@@ -392,6 +507,75 @@ echo "$interaction_policy_args" | grep -qF 'new-session' && \
echo "$output" | grep -qF 'operator interaction service requires runtime pi' || \
fail "interaction pinned-policy check did not follow strict parsing"
# #1241. The pane runs `mosaic yolo <runtime>` against PANE_PATH. A binary
# missing from that path is a launch failure, and it has to be named before the
# session is created — after it, the diagnostic dies with the pane.
assert_missing_pane_binary_rejected() {
local binary="$1"
local home="$ROOT/missing-$binary"
local agent="coder-missing-$binary"
write_generated "$home" "$agent"
rm -f "$home/.npm-global/bin/$binary"
: > "$TMUX_CALLS"
local output
if output=$(MOSAIC_TEST_PANE_PID=$$ run_start "$home" "$agent" 2>&1); then
fail "launch succeeded with '$binary' absent from the pane PATH"
fi
echo "$output" | grep -qF 'code=missing-binary' || fail "missing '$binary' diagnostic missing"
echo "$output" | grep -qF "'$binary'" || fail "missing-binary diagnostic did not name $binary"
if tr '\0' '\n' < "$TMUX_CALLS" | grep -qF new-session; then
fail "launcher created a session it knew would die ($binary absent)"
fi
}
assert_missing_pane_binary_rejected mosaic
assert_missing_pane_binary_rejected pi
# #1241. tmux destroys a session when its pane command exits, so no pane PID a
# second after new-session means the runtime died on startup. This used to be a
# WARNING about the heartbeat sidecar followed by exit 0 — three layers above it
# then reported a fleet that was not running.
: > "$TMUX_CALLS"
HOME_DEAD_PANE="$ROOT/dead-pane"
write_generated "$HOME_DEAD_PANE" "coder-dead-pane"
if output=$(MOSAIC_TEST_PANE_PID='' run_start "$HOME_DEAD_PANE" coder-dead-pane 2>&1); then
fail "launcher reported success over a pane that did not survive"
fi
echo "$output" | grep -qF 'code=pane-did-not-survive' || fail "dead-pane diagnostic missing"
if echo "$output" | grep -qiF 'heartbeat'; then
fail "dead pane is still being reported as a heartbeat-sidecar problem"
fi
tr '\0' '\n' < "$TMUX_CALLS" | grep -qF new-session || \
fail "dead-pane case did not reach the launch it is measuring"
# #1241, the other way a pane fails. Above, tmux destroyed the session and
# has-session said so. Here the session is still there and no PID comes back
# after the retries — a different fault (the pane is alive but unusable, or
# tmux is answering inconsistently) that an operator has to be told apart from
# a runtime that died on startup.
#
# This case exists because the branch that handles it shipped with nothing able
# to reach it: the shim answered has-session only for the holder, so every
# non-holder agent landed in the session-is-gone branch no matter what. A
# defensive branch nothing exercises is the same shape as the bug this whole
# change is about, one layer down.
: > "$TMUX_CALLS"
HOME_NO_PID="$ROOT/pane-no-pid"
write_generated "$HOME_NO_PID" "coder-no-pid"
if output=$(MOSAIC_TEST_PANE_PID='' MOSAIC_TEST_HELD_SESSIONS='=coder-no-pid:0.0' \
run_start "$HOME_NO_PID" coder-no-pid 2>&1); then
fail "launcher reported success over a session with no resolvable pane PID"
fi
echo "$output" | grep -qF 'code=pane-pid-unresolved' || \
fail "session-present/no-PID was not reported as pane-pid-unresolved: $output"
if echo "$output" | grep -qF 'code=pane-did-not-survive'; then
fail "a session tmux still reports was diagnosed as a destroyed session"
fi
if echo "$output" | grep -qiF 'heartbeat'; then
fail "an unresolvable pane PID is still being reported as a heartbeat-sidecar problem"
fi
# Exact stop derives the socket exclusively from the validated generated
# projection and ignores an ambient socket supplied by the caller.
: > "$TMUX_CALLS"
+49 -7
View File
@@ -43,7 +43,7 @@ fleet commits, pushes, and opens PRs under one identity — with no cryptographi
separation between an author and a reviewer.
Both `git-credential-mosaic` and `get_gitea_token()` resolve an optional **per-agent
identity** before falling back to the shared account:
identity**:
1. `MOSAIC_GIT_IDENTITY` environment variable, or
2. `git config --get mosaic.gitIdentity` (set per-worktree; persists on disk across
@@ -51,12 +51,54 @@ identity** before falling back to the shared account:
3. (git-credential-mosaic only) the username git itself supplies for the credential
request.
If the resolved identity has a token file at
`~/.config/mosaic/secrets/gitea-tokens/gitea-{usc,mosaicstack}-<agent-id>.token`, that
identity + token is used. **Nothing configured → nothing changes**: with no per-slot
token file present, both tools fall through to the existing shared-account path
unchanged, so this feature is a no-op on any host that hasn't provisioned per-slot
tokens.
### Which store a credential is read from
The store is chosen by what the identity **is**, not by which file happens to exist first:
| The identity | Its credential is read from |
| ------------------------------------------------------------------ | -------------------------------------------------------------------------- |
| has a directory at `<brain>/fleet/agents/<id>/` — it is a **seat** | `<brain>/fleet/agents/<id>/secrets/gitea-{usc,mosaicstack}-<id>.token` |
| does not — it is a **service identity** | `~/.config/mosaic/secrets/gitea-tokens/gitea-{usc,mosaicstack}-<id>.token` |
`<brain>` is `MOSAIC_BRAIN_HOME` if set, else `~/.mosaic` — the same resolution
`packages/mosaic/src/fleet/brain-home.ts` performs.
**There is no precedence between the two stores and no fallback from one to the other.**
A seat whose slot is empty is refused even when a same-named token sits in the framework
store. One credential lives in exactly one location: a second copy is drift rather than
redundancy, and the way drift surfaces is a stale copy returning 401, which reads as a
revoked token and sends whoever debugs it to the wrong place.
### What happens when nothing resolves
| identity resolves | token in its store | host runs a fleet | result |
| ----------------- | ------------------ | ----------------- | ------------------------- |
| yes | yes | — | that identity + token |
| yes | no | — | **fail closed** |
| no | — | yes | **fail closed** |
| no | — | no | shared account, unchanged |
A host "runs a fleet" when `<brain>/fleet/agents` exists — the same signal `brain-home.ts`
uses to decide a brain is active.
Failing closed means: nothing is emitted, the exit status is nonzero, a stderr diagnostic
names the identity, its source, the store it resolved to and the path that was expected,
and `git-credential-mosaic` additionally appends a record (identity, host, reason, cwd —
never a token value) to `${MOSAIC_CREDENTIAL_SPOOL:-~/.local/state/mosaic-credential-escalations}`.
The git operation fails; nothing is attributed to anyone.
The shared-account fallback that used to cover these two cases is why a PR could be
authored, commented and merged under an account whose owner did not open it — every seat
shared one identity, so the record could not be traced back afterwards. An
under-provisioned agent is refused rather than handed the most privileged account
available.
**On a host with no fleet, nothing changes**: no `fleet/agents` directory means the shared
account still answers, so this is a no-op for an operator who has not provisioned per-slot
tokens. On a host that does run a fleet, a human doing manual git work needs an identity
of their own — `MOSAIC_GIT_IDENTITY=<id>` with a provisioned slot. There is deliberately no
environment variable that restores the fallback; one would reintroduce exactly the
substitution this removes.
### Enabling it for a clone
@@ -481,13 +481,21 @@ while true; do
# (push=degraded-pass, merge=hold). Merge stays fail-closed:
# no-status there may just mean CI has not reported yet.
if [[ "$PURPOSE" == "push" ]]; then
echo "[ci-queue-wait] no status contexts on ${BRANCH} head (state=no-status) — no CI queue to wait on; queue clear."
echo "[ci-queue-wait] queue-clear state=no-status purpose=push branch=${BRANCH}; no queued or running CI."
exit 0
fi
echo "Error: ASSERTED_NOT_READY state=no-status purpose=${PURPOSE} branch=${BRANCH}." >&2
exit 3
;;
terminal-failure|malformed|unknown)
terminal-failure)
if [[ "$PURPOSE" == "push" ]]; then
echo "[ci-queue-wait] queue-clear state=terminal-failure purpose=push branch=${BRANCH}; no queued or running CI."
exit 0
fi
echo "Error: ASSERTED_NOT_READY state=terminal-failure purpose=${PURPOSE} branch=${BRANCH}." >&2
exit 3
;;
malformed|unknown)
echo "Error: ASSERTED_NOT_READY state=${STATE} purpose=${PURPOSE} branch=${BRANCH}." >&2
exit 3
;;
@@ -507,37 +507,69 @@ get_gitea_token() {
# 0. Per-agent identity (Gate-16 author≠reviewer). If MOSAIC_GIT_IDENTITY, or the
# per-worktree `git config mosaic.gitIdentity`, resolves to an agent that has a
# stored per-slot token for this host, act AS that agent so API tooling
# stored credential for this host, act AS that agent so API tooling
# (pr-create, issue-create, …) authors under the right identity — matching the
# git credential helper. Backward-compatible: nothing resolvable → shared logic below.
# git credential helper, which this block deliberately mirrors.
local _ident="${MOSAIC_GIT_IDENTITY:-}"
local _ident_src="MOSAIC_GIT_IDENTITY"
if [[ -z "$_ident" ]]; then
_ident="$(git config --get mosaic.gitIdentity 2>/dev/null || true)"
_ident_src="git config mosaic.gitIdentity"
fi
if [[ -n "$_ident" ]]; then
local _idpfx=""
case "$host" in
git.uscllc.com) _idpfx=gitea-usc ;;
git.mosaicstack.dev) _idpfx=gitea-mosaicstack ;;
esac
if [[ -n "$_idpfx" ]]; then
local _idtok="$HOME/.config/mosaic/secrets/gitea-tokens/${_idpfx}-${_ident}.token"
if [[ -r "$_idtok" ]]; then
cat "$_idtok"
return 0
fi
# FAIL LOUD: an explicit git identity was requested for a recognized Gitea host,
# but no per-slot token exists for THAT identity. Refuse to fall through to the
# shared/default credential loader below — silently borrowing another slot's token
# would post PRs/issues/reviews under the WRONG agent (e.g. rev2's review attributed
# to coder3), corrupting Gate-16 author≠reviewer separation. Hard-stop instead so the
# caller aborts loudly rather than acting as the wrong identity.
echo "Error: git identity '$_ident' requested (via $_ident_src) for host '$host', but no per-slot token at $_idtok." >&2
echo " Refusing to borrow another slot's token. Provision the per-slot token, or unset the identity to use shared credentials." >&2
return 1
# Recognized Gitea hosts are the ones carrying the per-identity token scheme.
local _idpfx=""
case "$host" in
git.uscllc.com) _idpfx=gitea-usc ;;
git.mosaicstack.dev) _idpfx=gitea-mosaicstack ;;
esac
# Brain-home resolution mirrors packages/mosaic/src/fleet/brain-home.ts and
# tools/fleet/start-agent-session.sh: MOSAIC_BRAIN_HOME wins, else ~/.mosaic.
local _brain_home="${MOSAIC_BRAIN_HOME:-$HOME/.mosaic}"
if [[ -n "$_ident" && -n "$_idpfx" ]]; then
# Credential store selection: an identity is a SEAT or a SERVICE, and which
# one it is decides where its credential lives. No precedence between the
# two stores and no fallback from one to the other — a seat with an empty
# slot fails loud rather than reading a service credential of the same name.
# One credential, one location: two copies diverge, and the stale copy fails
# in a way that reads as a revoked token rather than as drift.
local _idtok _ident_kind
if [[ -d "$_brain_home/fleet/agents/$_ident" ]]; then
_ident_kind="seat"
_idtok="$_brain_home/fleet/agents/$_ident/secrets/${_idpfx}-${_ident}.token"
else
_ident_kind="service identity"
_idtok="$HOME/.config/mosaic/secrets/gitea-tokens/${_idpfx}-${_ident}.token"
fi
if [[ -r "$_idtok" ]]; then
cat "$_idtok"
return 0
fi
# FAIL LOUD: an explicit git identity was requested for a recognized Gitea host,
# but no credential exists for THAT identity. Refuse to fall through to the
# shared/default credential loader below — silently borrowing another identity's
# token would post PRs/issues/reviews under the WRONG agent (e.g. rev2's review
# attributed to coder3), corrupting Gate-16 author≠reviewer separation. Hard-stop
# instead so the caller aborts loudly rather than acting as the wrong identity.
echo "Error: git identity '$_ident' requested (via $_ident_src) for host '$host', but no per-slot token at $_idtok." >&2
echo " Resolved as a ${_ident_kind}; there is no fallback between the seat and service stores." >&2
echo " Refusing to borrow another slot's token. Provision the credential at that path, or unset the identity to use shared credentials." >&2
return 1
fi
# FAIL LOUD: no identity resolved, on a host that HAS a fleet. Where seats exist,
# every record must name the agent that made it, so an unattributable request is
# refused rather than handed the shared account. `fleet/agents` existing is the
# same signal brain-home.ts uses to decide a brain is active. A host with no fleet
# keeps the shared path below unchanged: there the shared account is the operator's
# own and there is no attribution to lose.
if [[ -z "$_ident" && -n "$_idpfx" && -d "$_brain_home/fleet/agents" ]]; then
echo "Error: no git identity resolved for host '$host', but this host runs a fleet ($_brain_home/fleet/agents)." >&2
echo " Refusing to fall back to the shared account: records it creates cannot be attributed to the agent that made them." >&2
echo " Set MOSAIC_GIT_IDENTITY=<agent-id> or 'git config mosaic.gitIdentity <agent-id>'." >&2
return 1
fi
# 1. Mosaic credential loader (host → service mapping, run in subshell to avoid polluting env)
@@ -1,21 +1,48 @@
#!/bin/bash
# git-credential-mosaic — git credential helper — resolves Gitea tokens from
# the Mosaic credential store at runtime so remote URLs never embed secrets.
# git-credential-mosaic — git credential helper. Resolves a Gitea token from the
# Mosaic credential store at runtime so remote URLs never embed secrets.
#
# Install (one-time, per clone or globally):
# git config credential.helper "$HOME/.config/mosaic/tools/git/git-credential-mosaic"
# # or, fleet-wide: git config --global credential.helper "$HOME/.config/mosaic/tools/git/git-credential-mosaic"
#
# Per-agent Gate-16 identity (author != reviewer separation):
# Per-agent identity (Gate-16 author != reviewer separation):
# git config mosaic.gitIdentity <agent-id> # per-worktree, persists on disk
# # or: export MOSAIC_GIT_IDENTITY=<agent-id>
#
# Resolution priority: MOSAIC_GIT_IDENTITY env > git config mosaic.gitIdentity
# (per-worktree, survives across non-persistent shells) > git-supplied username
# (credential.username / URL). When the resolved identity has a matching
# per-agent token file, use it instead of the shared account. Backward
# compatible: nothing resolvable -> shared token (unchanged behavior).
# ── WHY THIS FAILS CLOSED ──────────────────────────────────────────────────────
# This helper used to end by emitting the shared account's token for any request
# it could not resolve to an identity. A seat with no identity, or with an
# identity whose token was never provisioned, therefore received the most
# privileged credential configured on the host — silently, and indistinguishably
# from correct operation. Every record it then created (commit, push, PR, review)
# was attributed to that shared account, so author != reviewer separation was
# unenforceable and the true actor was unrecoverable after the fact.
#
# Under-provisioning must fail loudly, not impersonate. A refused git operation
# is recoverable in one command; a merged pull request attributed to the wrong
# principal is not.
#
# ── CONTRACT ───────────────────────────────────────────────────────────────────
# identity : MOSAIC_GIT_IDENTITY > git config mosaic.gitIdentity > the
# username git supplies on stdin
# store : chosen by what the identity IS, with no precedence and no
# cross-store fallback (see "Credential store selection" below)
# hit : emit username + password, exit 0
# miss : emit NOTHING, spool a durable escalation record, explain on
# stderr, exit 1 — git surfaces the failure and nothing is attributed
# unknown host : exit 0 with no output, no record (passthrough for non-Mosaic
# remotes handled by another helper)
#
# Backward compatibility is preserved for exactly one case: a host with no fleet
# and no identity requested still gets the shared account, because on such a host
# the shared account is the operator's own and there is no attribution to lose.
# A host that HAS a fleet has agents whose records must be distinguishable, so
# the shared fallback is refused there.
#
# A token is never written to stderr, to the escalation record, or to any log.
[ "$1" = "get" ] || exit 0
host=""; username_in=""
while IFS= read -r line; do
[ -z "$line" ] && break
@@ -24,46 +51,170 @@ while IFS= read -r line; do
username=*) username_in=${line#username=};;
esac
done
# Per-agent identity resolution (Gate-16 author≠reviewer separation).
# Priority: MOSAIC_GIT_IDENTITY env > git config mosaic.gitIdentity (per-worktree,
# survives across non-persistent shells) > git-supplied username (credential.username
# / URL). When the resolved identity has a matching per-agent token, use it instead of
# the shared account. Backward-compatible: nothing resolvable → shared token.
ident="$MOSAIC_GIT_IDENTITY"
[ -z "$ident" ] && ident=$(git config --get mosaic.gitIdentity 2>/dev/null)
[ -z "$ident" ] && ident="$username_in"
if [ -n "$ident" ]; then
case "$host" in
git.uscllc.com) idpfx=gitea-usc;;
git.mosaicstack.dev) idpfx=gitea-mosaicstack;;
*) idpfx="";;
esac
if [ -n "$idpfx" ]; then
idtok="$HOME/.config/mosaic/secrets/gitea-tokens/${idpfx}-${ident}.token"
if [ -r "$idtok" ]; then
echo "username=${ident}"
echo "password=$(cat "$idtok")"
exit 0
fi
fi
fi
# Recognized Gitea hosts carry the per-identity token scheme. Anything else is
# declined quietly — another helper owns it, and refusing would break it.
case "$host" in
git.uscllc.com) svc=gitea-usc;;
git.mosaicstack.dev) svc=gitea-mosaicstack;;
git.uscllc.com) idpfx=gitea-usc;;
git.mosaicstack.dev) idpfx=gitea-mosaicstack;;
*) exit 0;;
esac
# Script-relative (not $HOME-absolute) so this resolves correctly regardless
# of where the framework installer places tools/ under $HOME — mirrors
# detect-platform.sh's own cred_loader resolution in this same directory.
script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
# shellcheck source=../_lib/credentials.sh
source "$script_dir/../_lib/credentials.sh"
load_credentials "$svc" >/dev/null 2>&1 || exit 0
# GITEA_USER is not populated by load_credentials (it only exports
# GITEA_URL/GITEA_TOKEN for gitea-*), so this fallback is normally taken. Gitea's
# git-over-HTTP auth authenticates from the token itself (the password field),
# not from the username string, so any non-empty placeholder works here — this
# is deliberately NOT a real account name (framework files must stay
# operator-agnostic; see tools/quality/scripts/verify-sanitized.sh).
echo "username=${GITEA_USER:-git}"
echo "password=$GITEA_TOKEN"
ident="$MOSAIC_GIT_IDENTITY"; ident_src="MOSAIC_GIT_IDENTITY"
if [ -z "$ident" ]; then
ident=$(git config --get mosaic.gitIdentity 2>/dev/null)
ident_src="git config mosaic.gitIdentity"
fi
if [ -z "$ident" ]; then
ident="$username_in"
ident_src="the username git supplied"
fi
# ── Credential store selection ────────────────────────────────────────────────
# An identity is a SEAT or it is a SERVICE, and which one it is determines where
# its credential lives. There is no precedence rule between the two stores and no
# fallback from one to the other: a seat whose slot is empty fails closed rather
# than reading a service credential that happens to share its name.
#
# seat — <brain>/fleet/agents/<ident>/ exists
# credential at <brain>/fleet/agents/<ident>/secrets/<idpfx>-<ident>.token
# service — it does not
# credential at ~/.config/mosaic/secrets/gitea-tokens/<idpfx>-<ident>.token
#
# One credential, one location. Two copies of one credential diverge, and the
# stale copy fails in a way that reads as a revoked token rather than as drift.
#
# Brain-home resolution mirrors packages/mosaic/src/fleet/brain-home.ts and
# tools/fleet/start-agent-session.sh: MOSAIC_BRAIN_HOME wins, else ~/.mosaic.
brain_home="${MOSAIC_BRAIN_HOME:-$HOME/.mosaic}"
svc_store="$HOME/.config/mosaic/secrets/gitea-tokens"
idtok=""; ident_kind=""
if [ -n "$ident" ]; then
if [ -d "$brain_home/fleet/agents/$ident" ]; then
ident_kind="seat"
idtok="$brain_home/fleet/agents/$ident/secrets/${idpfx}-${ident}.token"
else
ident_kind="service identity"
idtok="$svc_store/${idpfx}-${ident}.token"
fi
if [ -r "$idtok" ]; then
echo "username=${ident}"
echo "password=$(cat "$idtok")"
exit 0
fi
fi
# ── Shared-account fallback: ONLY on a host with no fleet and no identity ──────
# `fleet/agents` existing is the same signal brain-home.ts uses to decide a brain
# is active. Where there are seats, records must be attributable, so an
# unresolvable request is refused instead of borrowing the shared account.
fleet_present=0
[ -d "$brain_home/fleet/agents" ] && fleet_present=1
if [ -z "$ident" ] && [ "$fleet_present" -eq 0 ]; then
script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
# shellcheck source=../_lib/credentials.sh
source "$script_dir/../_lib/credentials.sh"
load_credentials "$idpfx" >/dev/null 2>&1 || exit 0
# GITEA_USER is not populated by load_credentials (it exports GITEA_URL and
# GITEA_TOKEN only). Gitea's git-over-HTTP auth authenticates from the token in
# the password field, not from the username string, so any non-empty
# placeholder works — deliberately NOT a real account name, since framework
# files stay operator-agnostic (tools/quality/scripts/verify-sanitized.sh).
echo "username=${GITEA_USER:-git}"
echo "password=$GITEA_TOKEN"
exit 0
fi
# ── FAIL CLOSED ───────────────────────────────────────────────────────────────
if [ -z "$ident" ]; then
reason="no-identity"
else
reason="no-token-for-identity"
fi
seat="${MOSAIC_AGENT_NAME:-unknown}"
ts=$(date -u +%Y-%m-%dT%H:%M:%SZ)
# The escalation RECORD is durable and unconditional; any notification built on
# top of it is best-effort. Record and alert are deduplicated separately — a cap
# on the alert alone lets the spool grow without bound exactly while the operator
# is being told nothing, so the louder the failure the quieter it gets.
#
# A record field is arbitrary operator-supplied text: an identity comes from git
# config or the environment, and cwd is whatever directory git ran in. Either can
# contain a quote or a backslash, which would make the line unparseable JSON --
# and a spool that silently stops parsing is worse than no spool, because the
# operator only discovers it while reading the record that explains an outage.
json_escape() {
local s=$1
s=${s//\\/\\\\}
s=${s//\"/\\\"}
s=${s//$'\t'/\\t}
s=${s//$'\r'/\\r}
s=${s//$'\n'/\\n}
printf '%s' "$s"
}
spool="${MOSAIC_CREDENTIAL_SPOOL:-$HOME/.local/state/mosaic-credential-escalations}"
spool_record=""
if mkdir -p "$spool" 2>/dev/null; then
chmod 700 "$spool" 2>/dev/null
spoolfile="$spool/$(date -u +%Y%m%d).jsonl"
dedupe="$spool/.spooled-${seat}-${ident:-none}-${reason}-$(date -u +%Y%m%d%H%M)"
if [ ! -e "$dedupe" ]; then
: > "$dedupe" 2>/dev/null
printf '{"ts":"%s","reason":"%s","identity":"%s","identity_source":"%s","kind":"%s","seat":"%s","host":"%s","cwd":"%s"}\n' \
"$(json_escape "$ts")" "$(json_escape "$reason")" \
"$(json_escape "${ident:-<unset>}")" "$(json_escape "$ident_src")" \
"$(json_escape "${ident_kind:-none}")" "$(json_escape "$seat")" \
"$(json_escape "$host")" "$(json_escape "$PWD")" \
>> "$spoolfile" 2>/dev/null
chmod 600 "$spoolfile" 2>/dev/null
fi
# Name the record only if one is actually on disk. Printing the path
# unconditionally sends the operator to a file that does not exist on exactly
# the hosts where the spool could not be created.
[ -s "$spoolfile" ] && spool_record="$spoolfile"
find "$spool" -maxdepth 1 -name '.spooled-*' -mmin +120 -delete 2>/dev/null
fi
cat >&2 <<EOF
git-credential-mosaic: REFUSED (fail-closed).
host : ${host}
identity : ${ident:-<unset>}${ident:+ (from ${ident_src}; resolved as a ${ident_kind})}
reason : ${reason}
EOF
if [ -n "$ident" ]; then
cat >&2 <<EOF
expected : ${idtok}
EOF
fi
cat >&2 <<EOF
No per-identity credential resolved. This helper does NOT fall back to the shared
account: that fallback makes every record it creates attributable to one
principal, which is unrecoverable once a pull request has merged under it.
Fix (pick one):
export MOSAIC_GIT_IDENTITY=<agent-id> # process-scoped
git config mosaic.gitIdentity <agent-id> # per-repo/worktree, persists
Then provision that identity's credential at the path named above. An identity
with a directory under \${MOSAIC_BRAIN_HOME:-\$HOME/.mosaic}/fleet/agents/ is a
seat and is read ONLY from its own secrets/ slot; any other identity is read from
~/.config/mosaic/secrets/gitea-tokens/. There is no fallback between the two.
If this identity legitimately needs git access and has none, ask the orchestrator
to provision one.
EOF
if [ -n "$spool_record" ]; then
echo " record: ${spool_record}" >&2
else
echo " record: NOT WRITTEN — spool unavailable at ${spool}" >&2
fi
exit 1
+471 -61
View File
@@ -1,6 +1,6 @@
#!/bin/bash
# pr-merge.sh - Merge pull requests on Gitea or GitHub
# Usage: pr-merge.sh -n PR_NUMBER [-m squash] [-d]
# Usage: pr-merge.sh -n PR_NUMBER [-m squash] [-d] [--expect-head SHA] [--co-author-trailers --escalate-to PRINCIPAL]
set -euo pipefail
@@ -14,6 +14,8 @@ MERGE_METHOD="squash"
DELETE_BRANCH=false
DRY_RUN=false
EXPECT_HEAD=""
CO_AUTHOR_TRAILERS=false
ESCALATE_TO=""
usage() {
cat <<EOF
@@ -27,12 +29,16 @@ Options:
-d, --delete-branch Delete the head branch after merge
--dry-run Run metadata/login preflight without merging
--expect-head SHA Refuse unless the PR head matches this full commit SHA
--co-author-trailers Build verified trailers from linked PR commit authors
--escalate-to NAME Named principal for an unresolved-author BLOCK
-h, --help Show this help message
Examples:
$(basename "$0") -n 42 # Merge PR #42
$(basename "$0") -n 42 -m squash # Squash merge
$(basename "$0") -n 42 -d # Squash merge and delete branch
$(basename "$0") -n 42 --expect-head 0123456789abcdef0123456789abcdef01234567
$(basename "$0") -n 42 --co-author-trailers --escalate-to tl-mosaic
EOF
exit "${1:-1}"
}
@@ -57,9 +63,25 @@ while [[ $# -gt 0 ]]; do
shift
;;
--expect-head)
if [[ $# -lt 2 ]]; then
echo "Error: --expect-head requires one full commit SHA." >&2
exit 1
fi
EXPECT_HEAD="$2"
shift 2
;;
--co-author-trailers)
CO_AUTHOR_TRAILERS=true
shift
;;
--escalate-to)
if [[ $# -lt 2 ]]; then
echo "Error: --escalate-to requires one principal name." >&2
exit 1
fi
ESCALATE_TO="$2"
shift 2
;;
-h|--help)
usage 0
;;
@@ -88,17 +110,30 @@ if [[ -n "$EXPECT_HEAD" && ! "$EXPECT_HEAD" =~ ^[0-9a-fA-F]{40}$ ]]; then
echo "Error: --expect-head must be a full 40-character hexadecimal commit SHA." >&2
exit 1
fi
if [[ "$CO_AUTHOR_TRAILERS" == true && -z "$ESCALATE_TO" ]]; then
echo "Error: --co-author-trailers requires --escalate-to with a named principal." >&2
exit 1
fi
if [[ -n "$ESCALATE_TO" && ! "$ESCALATE_TO" =~ ^[A-Za-z0-9_.-]+$ ]]; then
echo "Error: --escalate-to must be one exact principal name." >&2
exit 1
fi
if [[ "$CO_AUTHOR_TRAILERS" != true && -n "$ESCALATE_TO" ]]; then
echo "Error: --escalate-to is valid only with --co-author-trailers." >&2
exit 1
fi
PR_METADATA="$("$SCRIPT_DIR/pr-metadata.sh" -n "$PR_NUMBER")"
BASE_BRANCH="$(printf '%s' "$PR_METADATA" | python3 -c 'import json, sys; print((json.load(sys.stdin).get("baseRefName") or "").strip())')"
HEAD_BRANCH="$(printf '%s' "$PR_METADATA" | python3 -c 'import json, sys; print((json.load(sys.stdin).get("headRefName") or "").strip())')"
HEAD_SHA="$(printf '%s' "$PR_METADATA" | python3 -c 'import json, sys; print((json.load(sys.stdin).get("headRefOid") or "").strip())')"
HEAD_REPO="$(printf '%s' "$PR_METADATA" | python3 -c 'import json, sys; value=json.load(sys.stdin).get("headRepository") or ""; print((value.get("nameWithOwner") or value.get("full_name") or "") if isinstance(value, dict) else str(value).strip())')"
if [[ "$BASE_BRANCH" != "main" ]]; then
echo "Error: Mosaic policy allows merges only for PRs targeting 'main' (found '$BASE_BRANCH')." >&2
PR_TITLE="$(printf '%s' "$PR_METADATA" | python3 -c 'import json, sys; print((json.load(sys.stdin).get("title") or "").strip())')"
PR_AUTHOR="$(printf '%s' "$PR_METADATA" | python3 -c 'import json, sys; value=json.load(sys.stdin).get("author") or ""; print((value.get("login") or "").strip() if isinstance(value, dict) else str(value).strip())')"
if [[ "$BASE_BRANCH" != "main" && "$BASE_BRANCH" != "next" ]]; then
echo "Error: Mosaic policy allows merges only for PRs targeting 'main' or 'next' (found '$BASE_BRANCH')." >&2
exit 1
fi
if [[ -z "$HEAD_BRANCH" || -z "$HEAD_REPO" || ! "$HEAD_SHA" =~ ^[0-9a-fA-F]{40}$ ]]; then
echo "Error: Could not resolve the PR head branch, repository, and full commit SHA for queue inspection." >&2
exit 1
@@ -122,70 +157,442 @@ PLATFORM=$(detect_platform)
OWNER=$(get_repo_owner)
REPO=$(get_repo_name)
merge_gitea_with_api() {
local host="$1" api_url token basic_auth body_file raw_code payload
api_url="https://${host}/api/v1/repos/${OWNER}/${REPO}/pulls/${PR_NUMBER}/merge"
mkdir -p "${AGENT_WORK_ROOT:-${HOME:-/tmp}/mosaic/agent-work}"
body_file=$(mktemp "${AGENT_WORK_ROOT:-${HOME:-/tmp}/mosaic/agent-work}/pr-merge-api-response.XXXXXX")
payload=$(python3 - "$HEAD_SHA" "$DELETE_BRANCH" <<'PY'
write_curl_auth_config() {
local mode="$1" credential="$2"
printf '%s' "$credential" | python3 -c '
import sys
mode = sys.argv[1]
credential = sys.stdin.read()
if not credential or any(char in credential for char in "\r\n"):
raise SystemExit(1)
escaped = credential.replace("\\", "\\\\").replace("\"", "\\\"")
if mode == "token":
print(f"header = \"Authorization: token {escaped}\"")
elif mode == "basic":
print(f"user = \"{escaped}\"")
else:
raise SystemExit(1)
' "$mode"
}
LAST_GITEA_HTTP_CODE="000"
LAST_GITEA_ERROR=""
MERGE_TEMP_DIRS=()
GITEA_CURL_MAX_BYTES="${MOSAIC_GITEA_CURL_MAX_BYTES:-1048576}"
GITEA_CURL_MAX_TIME="${MOSAIC_GITEA_CURL_MAX_TIME_SEC:-30}"
GITEA_CURL_CONNECT_TIMEOUT="${MOSAIC_GITEA_CURL_CONNECT_TIMEOUT_SEC:-10}"
for bound in "$GITEA_CURL_MAX_BYTES" "$GITEA_CURL_MAX_TIME" "$GITEA_CURL_CONNECT_TIMEOUT"; do
if [[ ! "$bound" =~ ^[1-9][0-9]*$ ]]; then
echo "Error: Gitea curl bounds must be positive integers; refusing request." >&2
exit 1
fi
done
GITEA_CURL_BOUNDS=(
--max-filesize "$GITEA_CURL_MAX_BYTES"
--max-time "$GITEA_CURL_MAX_TIME"
--connect-timeout "$GITEA_CURL_CONNECT_TIMEOUT"
)
format_gitea_error_response() {
local response_file="$1"
python3 - "$response_file" <<'PY'
import json
import sys
head_sha, delete_branch = sys.argv[1:]
with open(sys.argv[1], "rb") as handle:
raw = handle.read(65536)
try:
response = json.loads(raw.decode("utf-8", errors="replace"))
except (UnicodeDecodeError, json.JSONDecodeError):
message = "non-JSON response omitted"
else:
if isinstance(response, dict):
message = response.get("message") or response.get("error")
if not message and response.get("errors") is not None:
message = json.dumps(response["errors"], separators=(",", ":"))
else:
message = None
if not message:
message = "JSON response contained no error message"
message = str(message)
if len(message) > 500:
message = message[:500] + "..."
print(ascii(message))
PY
}
cleanup_merge_temp_dirs() {
local path
for path in "${MERGE_TEMP_DIRS[@]}"; do
[[ -n "$path" ]] && rm -rf -- "$path"
done
}
trap cleanup_merge_temp_dirs EXIT
trap 'exit 130' INT
trap 'exit 143' TERM
fetch_gitea_pr_head() {
local host="$1" auth_mode="$2" credential="$3" work_root="$4"
local response_file raw_code api_url auth_config curl_rc
response_file=$(mktemp "$work_root/pr-merge-pr.XXXXXX")
api_url="https://${host}/api/v1/repos/${OWNER}/${REPO}/pulls/${PR_NUMBER}"
if ! auth_config=$(write_curl_auth_config "$auth_mode" "$credential"); then
echo "Error: Could not construct Gitea authentication config; refusing request." >&2
rm -f "$response_file"
return 1
fi
raw_code=$(curl -sS -K - "${GITEA_CURL_BOUNDS[@]}" -w '%{http_code}' -o "$response_file" \
-H "User-Agent: curl/8" "$api_url" <<<"$auth_config")
curl_rc=$?
LAST_GITEA_HTTP_CODE="${raw_code:-000}"
if [[ "$curl_rc" -ne 0 ]]; then
LAST_GITEA_ERROR="curl transport failed (rc=$curl_rc)"
rm -f "$response_file"
return 1
fi
if [[ ! "$raw_code" =~ ^2 ]]; then
LAST_GITEA_ERROR=$(format_gitea_error_response "$response_file")
rm -f "$response_file"
return 1
fi
if ! python3 - "$response_file" <<'PY'
import json
import re
import sys
with open(sys.argv[1], encoding="utf-8") as handle:
pull = json.load(handle)
head = pull.get("head") if isinstance(pull, dict) else None
sha = str(head.get("sha") or "") if isinstance(head, dict) else ""
if not re.fullmatch(r"[0-9a-fA-F]{40}", sha):
raise SystemExit(1)
print(sha)
PY
then
echo "Error: Gitea PR response has no valid head SHA; refusing merge." >&2
rm -f "$response_file"
return 1
fi
rm -f "$response_file"
}
fetch_gitea_pr_commits() {
local host="$1" auth_mode="$2" credential="$3" work_root="$4"
local page page_file combined_file merged_file raw_code page_count api_url auth_config curl_rc
mkdir -p "$work_root"
if ! auth_config=$(write_curl_auth_config "$auth_mode" "$credential"); then
echo "Error: Could not construct Gitea authentication config; refusing request." >&2
return 1
fi
combined_file=$(mktemp "$work_root/pr-merge-commits.XXXXXX")
printf '[]' > "$combined_file"
page=1
while true; do
page_file=$(mktemp "$work_root/pr-merge-commits-page.XXXXXX")
api_url="https://${host}/api/v1/repos/${OWNER}/${REPO}/pulls/${PR_NUMBER}/commits?limit=50&page=${page}"
raw_code=$(curl -sS -K - "${GITEA_CURL_BOUNDS[@]}" -w '%{http_code}' -o "$page_file" \
-H "User-Agent: curl/8" "$api_url" <<<"$auth_config")
curl_rc=$?
LAST_GITEA_HTTP_CODE="${raw_code:-000}"
if [[ "$curl_rc" -ne 0 ]]; then
LAST_GITEA_ERROR="curl transport failed (rc=$curl_rc)"
rm -f "$page_file" "$combined_file"
return 1
fi
if [[ ! "$raw_code" =~ ^2 ]]; then
LAST_GITEA_ERROR=$(format_gitea_error_response "$page_file")
rm -f "$page_file" "$combined_file"
return 1
fi
if ! page_count=$(python3 - "$page_file" <<'PY'
import json
import sys
with open(sys.argv[1], encoding="utf-8") as handle:
page = json.load(handle)
if not isinstance(page, list):
raise SystemExit(1)
print(len(page))
PY
); then
echo "Error: Gitea PR commits response is not a JSON array; refusing merge." >&2
rm -f "$page_file" "$combined_file"
return 1
fi
merged_file=$(mktemp "$work_root/pr-merge-commits-merged.XXXXXX")
if ! python3 - "$combined_file" "$page_file" > "$merged_file" <<'PY'
import json
import sys
with open(sys.argv[1], encoding="utf-8") as handle:
combined = json.load(handle)
with open(sys.argv[2], encoding="utf-8") as handle:
page = json.load(handle)
json.dump(combined + page, sys.stdout, separators=(",", ":"))
PY
then
echo "Error: Could not combine paginated PR commit metadata; refusing merge." >&2
rm -f "$page_file" "$combined_file" "$merged_file"
return 1
fi
mv "$merged_file" "$combined_file"
rm -f "$page_file"
if [[ "$page_count" -lt 50 ]]; then
break
fi
page=$((page + 1))
if [[ "$page" -gt 1000 ]]; then
echo "Error: PR commit pagination exceeded 1000 pages; refusing merge." >&2
rm -f "$combined_file"
return 1
fi
done
cat "$combined_file"
rm -f "$combined_file"
}
# LIMITATION: author.login resolution proves the commit address maps to a registered account.
# It does NOT prove the named principal authored the commit — git author metadata is self-asserted.
# This gate checks ATTRIBUTION LINKAGE, not AUTHORSHIP. Commit signing is out of scope and unadopted.
build_coauthor_message_fields() {
local commits_file="$1" context_file="$2" head_file="$3"
python3 - "$commits_file" "$context_file" "$head_file" <<'PY'
import json
import re
import sys
commits_path, context_path, head_path = sys.argv[1:]
with open(commits_path, encoding="utf-8") as handle:
commits = json.load(handle)
head_sha = open(head_path, encoding="utf-8").read().strip()
context_parts = open(context_path, "rb").read().split(b"\0")
if len(context_parts) != 4 or context_parts[-1] != b"":
raise SystemExit(1)
poster, title, principal = (part.decode("utf-8") for part in context_parts[:3])
if not isinstance(commits, list) or not commits:
print(
f"BLOCK: provider returned no PR commits; author identity is unmeasurable. "
f"Refusing merge; escalate to named principal '{principal}'.",
file=sys.stderr,
)
raise SystemExit(75)
if not poster:
print(
f"BLOCK: PR poster login is empty; refusing merge; "
f"escalate to named principal '{principal}'.",
file=sys.stderr,
)
raise SystemExit(75)
if not re.fullmatch(r"[0-9a-fA-F]{40}", head_sha):
print(
f"BLOCK: inspected PR head SHA is invalid; refusing merge; "
f"escalate to named principal '{principal}'.",
file=sys.stderr,
)
raise SystemExit(75)
seen = set()
trailers = []
head_seen = False
for item in commits:
if not isinstance(item, dict):
print(f"BLOCK: malformed PR commit metadata; escalate to named principal '{principal}'.", file=sys.stderr)
raise SystemExit(75)
sha = str(item.get("sha") or "<unknown>")
if sha == head_sha:
head_seen = True
commit = item.get("commit") if isinstance(item.get("commit"), dict) else {}
commit_author = commit.get("author") if isinstance(commit.get("author"), dict) else {}
email = str(commit_author.get("email") or "").strip()
provider_author = item.get("author") if isinstance(item.get("author"), dict) else {}
login = str(provider_author.get("login") or "").strip()
if not login:
diagnostic_email = email or "<missing>"
print(
f"BLOCK: commit {sha!r} has author.login=NULL while "
f"commit.author.email={diagnostic_email!r}; refusing merge; "
f"escalate to named principal '{principal}'.",
file=sys.stderr,
)
raise SystemExit(75)
if (
not email.isascii()
or not email.isprintable()
or not re.fullmatch(r"[A-Za-z0-9_.-]+", login)
or not re.fullmatch(r"[^<>\s]+@[^<>\s]+", email)
):
print(
f"BLOCK: commit {sha!r} has unusable linked identity "
f"author.login={login!r}, commit.author.email={email!r}; refusing merge; "
f"escalate to named principal '{principal}'.",
file=sys.stderr,
)
raise SystemExit(75)
if login == poster or login in seen:
continue
seen.add(login)
trailers.append(f"Co-authored-by: {login} <{email}>")
if not head_seen:
print(
f"BLOCK: inspected PR head is absent from commit enumeration; refusing merge; "
f"escalate to named principal '{principal}'.",
file=sys.stderr,
)
raise SystemExit(75)
if not trailers:
print("{}")
raise SystemExit(0)
if not title:
print(
f"BLOCK: PR title is empty; refusing merge; escalate to named principal '{principal}'.",
file=sys.stderr,
)
raise SystemExit(75)
if not title.isprintable() or re.match(r"^[A-Za-z-]+-[Bb]y:", title):
print(
f"BLOCK: PR title is not one printable, non-trailer line; refusing merge; "
f"escalate to named principal '{principal}'.",
file=sys.stderr,
)
raise SystemExit(75)
print(json.dumps({
"MergeTitleField": title,
"MergeMessageField": "\n".join(trailers),
}, separators=(",", ":")))
PY
}
merge_gitea_api_attempt() {
local host="$1" auth_mode="$2" credential="$3"
local api_url attempt_dir body_file raw_code commits_file fields_file context_file head_file payload_file work_root attempt_rc auth_config curl_rc
LAST_GITEA_HTTP_CODE="000"
LAST_GITEA_ERROR=""
api_url="https://${host}/api/v1/repos/${OWNER}/${REPO}/pulls/${PR_NUMBER}/merge"
work_root="${AGENT_WORK_ROOT:-${HOME:-/tmp}/mosaic/agent-work}"
mkdir -p "$work_root"
attempt_dir=$(mktemp -d "$work_root/pr-merge-attempt.XXXXXX")
chmod 0700 "$attempt_dir"
MERGE_TEMP_DIRS+=("$attempt_dir")
body_file=$(mktemp "$attempt_dir/api-response.XXXXXX")
fields_file=$(mktemp "$attempt_dir/message-fields.XXXXXX")
payload_file=$(mktemp "$attempt_dir/payload.XXXXXX")
printf '{}' > "$fields_file"
if [[ "$CO_AUTHOR_TRAILERS" == true ]]; then
commits_file=$(mktemp "$attempt_dir/pr-merge-commits-input.XXXXXX")
context_file=$(mktemp "$attempt_dir/pr-merge-message-context.XXXXXX")
head_file=$(mktemp "$attempt_dir/pr-merge-head-input.XXXXXX")
printf '%s\0%s\0%s\0' "$PR_AUTHOR" "$PR_TITLE" "$ESCALATE_TO" > "$context_file"
if fetch_gitea_pr_head "$host" "$auth_mode" "$credential" "$attempt_dir" > "$head_file"; then
:
else
attempt_rc=$?
rm -f "$body_file" "$fields_file" "$payload_file" "$commits_file" "$context_file" "$head_file"
return "$attempt_rc"
fi
if [[ "$(<"$head_file")" != "$HEAD_SHA" ]]; then
echo "BLOCK: authenticated PR head moved from reviewed $HEAD_SHA to $(<"$head_file"); refusing merge; escalate to named principal '$ESCALATE_TO'." >&2
rm -f "$body_file" "$fields_file" "$payload_file" "$commits_file" "$context_file" "$head_file"
return 75
fi
if fetch_gitea_pr_commits "$host" "$auth_mode" "$credential" "$attempt_dir" > "$commits_file"; then
:
else
attempt_rc=$?
rm -f "$body_file" "$fields_file" "$payload_file" "$commits_file" "$context_file" "$head_file"
return "$attempt_rc"
fi
if build_coauthor_message_fields "$commits_file" "$context_file" "$head_file" > "$fields_file"; then
:
else
attempt_rc=$?
rm -f "$body_file" "$fields_file" "$payload_file" "$commits_file" "$context_file" "$head_file"
return "$attempt_rc"
fi
rm -f "$commits_file" "$context_file" "$head_file"
fi
if ! python3 - "$fields_file" "$HEAD_SHA" "$DELETE_BRANCH" > "$payload_file" <<'PY'
import json
import sys
with open(sys.argv[1], encoding="utf-8") as handle:
fields = json.load(handle)
head_sha, delete_branch = sys.argv[2:]
payload = {"Do": "squash", "head_commit_id": head_sha}
if delete_branch == "true":
payload["delete_branch_after_merge"] = True
payload.update(fields)
allowed = {"Do", "head_commit_id", "delete_branch_after_merge", "MergeTitleField", "MergeMessageField"}
if payload.get("Do") != "squash" or set(payload) - allowed:
raise SystemExit(1)
print(json.dumps(payload, separators=(",", ":")))
PY
)
token=$(get_gitea_token "$host" || true)
if [[ -n "$token" ]]; then
raw_code=$(curl -sS -w '%{http_code}' -o "$body_file" \
-X POST \
-H "User-Agent: curl/8" \
-H "Authorization: token $token" \
-H 'Content-Type: application/json' \
-d "$payload" \
"$api_url" || true)
if [[ "$raw_code" =~ ^2 ]]; then
rm -f "$body_file"
return 0
fi
then
rm -f "$body_file" "$fields_file" "$payload_file"
return 1
fi
rm -f "$fields_file"
basic_auth=$(get_gitea_basic_auth "$host" || true)
if [[ -n "$basic_auth" ]]; then
raw_code=$(curl -sS -w '%{http_code}' -o "$body_file" \
-X POST \
-u "$basic_auth" \
-H "User-Agent: curl/8" \
-H 'Content-Type: application/json' \
-d "$payload" \
"$api_url" || true)
if [[ "$raw_code" =~ ^2 ]]; then
rm -f "$body_file"
return 0
fi
if ! auth_config=$(write_curl_auth_config "$auth_mode" "$credential"); then
echo "Error: Could not construct Gitea authentication config; refusing request." >&2
rm -f "$body_file" "$payload_file"
return 1
fi
raw_code=$(curl -sS -K - "${GITEA_CURL_BOUNDS[@]}" -w '%{http_code}' -o "$body_file" \
-X POST -H "User-Agent: curl/8" \
-H 'Content-Type: application/json' \
--data-binary "@$payload_file" "$api_url" <<<"$auth_config")
curl_rc=$?
LAST_GITEA_HTTP_CODE="${raw_code:-000}"
if [[ "$curl_rc" -ne 0 ]]; then
LAST_GITEA_ERROR="curl transport failed (rc=$curl_rc)"
rm -f "$body_file" "$payload_file"
rm -rf -- "$attempt_dir"
return 1
fi
if [[ ! "$raw_code" =~ ^2 ]]; then
LAST_GITEA_ERROR=$(format_gitea_error_response "$body_file")
fi
rm -f "$body_file" "$payload_file"
rm -rf -- "$attempt_dir"
[[ "$raw_code" =~ ^2 ]]
}
python3 - "${raw_code:-000}" "$body_file" <<'PY' >&2
import json
import sys
code, path = sys.argv[1], sys.argv[2]
try:
with open(path, encoding="utf-8", errors="replace") as handle:
raw = handle.read(500)
data = json.loads(raw) if raw else {}
message = data.get("message") or data.get("error") or raw or "empty response"
except Exception:
try:
message = open(path, encoding="utf-8", errors="replace").read(500) or "empty response"
except Exception:
message = "unreadable response"
print(f"Error: Gitea API merge failed with HTTP {code}: {message}")
PY
rm -f "$body_file"
merge_gitea_with_api() {
local host="$1" token attempt_rc
if ! token=$(get_gitea_token "$host"); then
echo "Error: Could not resolve the required Gitea token; refusing merge without changing principals." >&2
return 1
fi
if [[ -z "$token" ]]; then
echo "Error: Required Gitea token resolved empty; refusing merge without changing principals." >&2
return 1
fi
if merge_gitea_api_attempt "$host" token "$token"; then
return 0
else
attempt_rc=$?
fi
if [[ "$attempt_rc" -eq 75 ]]; then
return 75
fi
if [[ "$LAST_GITEA_HTTP_CODE" != "401" ]]; then
echo "Error: Gitea API merge failed with the identity-bound token (HTTP ${LAST_GITEA_HTTP_CODE:-000}).${LAST_GITEA_ERROR:+ Provider response: $LAST_GITEA_ERROR}" >&2
return 1
fi
echo "Error: Gitea API rejected the identity-bound token with HTTP 401; refusing cross-principal credential fallback." >&2
return 1
}
@@ -195,11 +602,10 @@ if [[ "$DRY_RUN" == true ]]; then
echo "Error: Cannot determine host from origin remote URL" >&2
exit 1
}
TEA_LOGIN="$(get_gitea_login_for_host "$HOST" || true)"
if [[ -n "$TEA_LOGIN" ]]; then
echo "Dry run: would merge PR #$PR_NUMBER on $HOST with tea login '$TEA_LOGIN' (base=$BASE_BRANCH, method=squash)."
if [[ "$CO_AUTHOR_TRAILERS" == true ]]; then
echo "Dry run: would verify PR commit authors and merge PR #$PR_NUMBER on $HOST with authenticated Gitea API message fields (base=$BASE_BRANCH, method=squash)."
else
echo "Dry run: would merge PR #$PR_NUMBER on $HOST with authenticated Gitea API fallback (base=$BASE_BRANCH, method=squash)."
echo "Dry run: would merge PR #$PR_NUMBER on $HOST with the authenticated exact-head Gitea API path (base=$BASE_BRANCH, method=squash)."
fi
else
echo "Dry run: would merge PR #$PR_NUMBER on $PLATFORM (base=$BASE_BRANCH, method=squash)."
@@ -209,6 +615,10 @@ fi
case "$PLATFORM" in
github)
if [[ "$CO_AUTHOR_TRAILERS" == true ]]; then
echo "Error: --co-author-trailers currently requires the Gitea REST message-field contract." >&2
exit 1
fi
cmd=(gh pr merge "$PR_NUMBER" --squash --match-head-commit "$HEAD_SHA")
[[ "$DELETE_BRANCH" == true ]] && cmd+=(--delete-branch)
"${cmd[@]}"
@@ -219,7 +629,7 @@ case "$PLATFORM" in
exit 1
}
# Gitea's API head_commit_id is an atomic compare-and-merge precondition.
# tea cannot express it, so exact-head merges use the authenticated API path.
# tea cannot express it, so every Gitea merge uses the authenticated API path.
merge_gitea_with_api "$HOST"
;;
*)
@@ -43,22 +43,22 @@ SH
chmod +x "$STUB_DIR/gh"
run_guard() {
local mode="$1"
local mode="$1" purpose="${2:-push}"
(
cd "$REPO_DIR" || exit
export PATH="$STUB_DIR:$PATH"
export MOSAIC_GH_CHECK_MODE="$mode"
export MOSAIC_GH_CALL_LOG="$WORK_DIR/gh-calls.log"
export MOSAIC_CI_QUEUE_AUDIT_LOG="$WORK_DIR/audit.jsonl"
"$SCRIPT_DIR/ci-queue-wait.sh" --purpose push -t 0 -i 0
"$SCRIPT_DIR/ci-queue-wait.sh" --purpose "$purpose" -t 0 -i 0
)
}
failures=0
assert_case() {
local mode="$1" expected_rc="$2" expected_state="$3" output rc
local mode="$1" expected_rc="$2" expected_state="$3" purpose="${4:-push}" output rc
set +e
output=$(run_guard "$mode" 2>&1)
output=$(run_guard "$mode" "$purpose" 2>&1)
rc=$?
set -e
if [[ "$expected_rc" == zero && "$rc" -ne 0 ]]; then
@@ -79,10 +79,12 @@ set -e
: > "$WORK_DIR/gh-calls.log"
assert_case success zero terminal-success
assert_case pending nonzero pending
assert_case failure nonzero terminal-failure
assert_case late-failure nonzero terminal-failure
assert_case failure zero terminal-failure
assert_case late-failure zero terminal-failure
assert_case failure nonzero terminal-failure merge
assert_case late-failure nonzero terminal-failure merge
if [[ $(grep -c 'check-runs?per_page=100&filter=latest' "$WORK_DIR/gh-calls.log") -lt 4 ]]; then
if [[ $(grep -c 'check-runs?per_page=100&filter=latest' "$WORK_DIR/gh-calls.log") -lt 6 ]]; then
echo "FAIL: expected every case to query all Checks API pages" >&2
failures=$((failures + 1))
fi
@@ -92,4 +94,4 @@ if [[ "$failures" -ne 0 ]]; then
exit 1
fi
echo "GitHub check-runs regression passed (4/4 cases, including later-page failure)"
echo "GitHub check-runs regression passed (6/6 purpose-aware cases, including later-page failure)"
@@ -9,10 +9,51 @@ WORK_DIR="${MOSAIC_TEST_WORK_DIR:-$PWD/.mosaic-test-work/ci-queue-wait-tristate}
REPO_DIR="$WORK_DIR/repo"
STUB_DIR="$WORK_DIR/stubs"
AUDIT_LOG="$WORK_DIR/audit/ci-queue-wait.jsonl"
STATUS_OBSERVED="$WORK_DIR/status-observed"
CLOCK_LOG="$WORK_DIR/clock.log"
WATCHDOG_PYTHON="/usr/bin/python3"
WATCHDOG_SCRIPT="$WORK_DIR/real-clock-watchdog.py"
WATCHDOG_TIMEOUT_SEC=5
WATCHDOG_EXIT=90
FEATURE_BRANCH="fix/rm-03-fixture"
if [[ ! -x "$WATCHDOG_PYTHON" ]]; then
echo "FAIL setup: required real-clock watchdog runtime is unavailable at $WATCHDOG_PYTHON" >&2
exit 1
fi
rm -rf "$WORK_DIR"
mkdir -p "$REPO_DIR" "$STUB_DIR"
cat > "$WATCHDOG_SCRIPT" <<'PY'
import os
import signal
import subprocess
import sys
if len(sys.argv) < 3:
raise SystemExit(2)
timeout_seconds = float(sys.argv[1])
process = subprocess.Popen(sys.argv[2:], start_new_session=True)
try:
return_code = process.wait(timeout=timeout_seconds)
except subprocess.TimeoutExpired:
try:
os.killpg(process.pid, signal.SIGKILL)
except ProcessLookupError:
pass
process.wait()
print(
f"FAIL HANG watchdog: subject exceeded {timeout_seconds:g}s "
"before completing its intended path",
file=sys.stderr,
)
raise SystemExit(90)
if return_code < 0:
raise SystemExit(128 - return_code)
raise SystemExit(return_code)
PY
git -C "$REPO_DIR" init -q
git -C "$REPO_DIR" checkout -q -b "$FEATURE_BRANCH"
git -C "$REPO_DIR" remote add origin https://git.example.test/acme/widgets.git
@@ -33,6 +74,9 @@ printf '%s\n' "$url" >> "${MOSAIC_STUB_URL_LOG:?}"
case "$url" in
*/branches/*)
if [[ "${MOSAIC_STUB_BRANCH_MODE:-ok}" == "hang-before-provider" ]]; then
while :; do :; done
fi
if [[ "${MOSAIC_STUB_BRANCH_MODE:-ok}" == "unreachable" ]]; then
exit 7
fi
@@ -44,6 +88,7 @@ case "$url" in
fi
;;
*/status)
: > "${MOSAIC_STUB_STATUS_OBSERVED:?}"
case "${MOSAIC_STUB_STATUS_MODE:?}" in
success) printf '%s' '{"state":"success","statuses":[{"status":"success"}]}' ;;
pending) printf '%s' '{"state":"pending","statuses":[{"status":"pending","context":"ci/test"}]}' ;;
@@ -53,6 +98,7 @@ case "$url" in
malformed) printf '%s' 'not-json' ;;
malformed-statuses-type) printf '%s' '{"state":"success","statuses":"corrupt"}' ;;
malformed-status-entry) printf '%s' '{"state":"success","statuses":[null]}' ;;
unknown) printf '%s' '{"state":"success","statuses":[{"status":"cancelled"}]}' ;;
large-success)
python3 -c 'import json; print(json.dumps({"state":"success", "statuses":[{"status":"success"}], "padding":"x" * (160 * 1024)}), end="")'
;;
@@ -63,7 +109,31 @@ case "$url" in
*) echo "unexpected curl URL: $url" >&2; exit 2 ;;
esac
SH
chmod +x "$STUB_DIR/curl"
cat > "$STUB_DIR/date" <<'SH'
#!/usr/bin/env bash
set -euo pipefail
if [[ "$#" -ne 1 || "$1" != "+%s" ]]; then
echo "unexpected date invocation: $*" >&2
exit 2
fi
if [[ -e "${MOSAIC_STUB_STATUS_OBSERVED:?}" ]]; then
printf 'date-phase=after-status\n' >> "${MOSAIC_STUB_CLOCK_LOG:?}"
printf '1002\n'
else
printf 'date-phase=before-status\n' >> "${MOSAIC_STUB_CLOCK_LOG:?}"
printf '1000\n'
fi
SH
cat > "$STUB_DIR/sleep" <<'SH'
#!/usr/bin/env bash
set -euo pipefail
printf 'sleep-after-status=%s\n' "$*" >> "${MOSAIC_STUB_CLOCK_LOG:?}"
SH
chmod +x "$STUB_DIR/curl" "$STUB_DIR/date" "$STUB_DIR/sleep"
run_guard() {
local status_mode="$1"
@@ -83,13 +153,46 @@ run_guard() {
export GITEA_URL=https://git.example.test
export MOSAIC_STUB_STATUS_MODE="$status_mode"
fi
rm -f "$STATUS_OBSERVED" "$CLOCK_LOG"
export MOSAIC_STUB_URL_LOG="$WORK_DIR/urls.log"
export MOSAIC_STUB_STATUS_OBSERVED="$STATUS_OBSERVED"
export MOSAIC_STUB_CLOCK_LOG="$CLOCK_LOG"
export MOSAIC_CI_QUEUE_AUDIT_LOG="$audit_log"
"$SCRIPT_DIR/ci-queue-wait.sh" --purpose "${MOSAIC_TEST_PURPOSE:-push}" -t 0 -i 0 "$@"
# Provider observation is the synchronization event. The one-second
# timeout is subject semantics under virtual time, never a wall wait.
# The absolute Python runtime uses an internal monotonic wait and kills
# the subject's isolated process group. Neither operation can resolve
# to the virtual date/sleep stubs at the front of PATH.
local subject_rc
if "$WATCHDOG_PYTHON" "$WATCHDOG_SCRIPT" "$WATCHDOG_TIMEOUT_SEC" \
"$SCRIPT_DIR/ci-queue-wait.sh" --purpose "${MOSAIC_TEST_PURPOSE:-push}" -t 1 -i 1 "$@"; then
subject_rc=0
else
subject_rc=$?
fi
return "$subject_rc"
)
}
failures=0
assert_provider_observed() {
local name="$1" require_expiration="${2:-0}"
if [[ ! -e "$STATUS_OBSERVED" ]]; then
echo "FAIL $name: status provider was not observed" >&2
failures=$((failures + 1))
fi
if [[ ! -s "$CLOCK_LOG" ]] || ! grep -q '^date-phase=before-status$' "$CLOCK_LOG"; then
echo "FAIL $name: virtual clock interception did not run before provider observation" >&2
failures=$((failures + 1))
fi
if [[ "$require_expiration" -eq 1 ]]; then
if ! grep -q '^sleep-after-status=' "$CLOCK_LOG" || ! grep -q '^date-phase=after-status$' "$CLOCK_LOG"; then
echo "FAIL $name: pending path did not expire after provider observation" >&2
failures=$((failures + 1))
fi
fi
}
run_assertion() {
local name="$1" expected_rc="$2" status_mode="$3" required_text="$4"
local output rc
@@ -124,22 +227,59 @@ run_assertion() {
printf '%s\n' "$output" >&2
failures=$((failures + 1))
fi
if [[ "$status_mode" != "credential-unresolvable" ]]; then
if [[ "$status_mode" == "pending" ]]; then
assert_provider_observed "$name" 1
else
assert_provider_observed "$name"
fi
fi
}
set -e
: > "$WORK_DIR/urls.log"
run_assertion success zero success 'state=terminal-success'
run_assertion pending nonzero pending 'ASSERTED_NOT_READY'
run_assertion failure nonzero failure 'ASSERTED_NOT_READY'
run_assertion no-status nonzero no-status 'ASSERTED_NOT_READY'
run_assertion aggregate-success-no-status nonzero aggregate-success-no-status 'ASSERTED_NOT_READY'
run_assertion malformed nonzero malformed 'ASSERTED_NOT_READY'
run_assertion malformed-statuses-type nonzero malformed-statuses-type 'ASSERTED_NOT_READY'
run_assertion malformed-status-entry nonzero malformed-status-entry 'ASSERTED_NOT_READY'
run_assertion large-payload not126 large-success 'state=terminal-success'
# Push readiness is queue clearance, not proof that prior CI succeeded.
run_assertion push-success zero success 'state=terminal-success'
run_assertion push-pending nonzero pending 'ASSERTED_NOT_READY'
run_assertion push-failure zero failure 'queue-clear state=terminal-failure purpose=push'
run_assertion push-no-status zero no-status 'queue-clear state=no-status purpose=push'
run_assertion push-aggregate-success-no-status zero aggregate-success-no-status 'queue-clear state=no-status purpose=push'
run_assertion push-require-status nonzero no-status 'ASSERTED_NOT_READY state=no-status' --require-status
run_assertion push-malformed nonzero malformed 'ASSERTED_NOT_READY'
run_assertion push-malformed-statuses-type nonzero malformed-statuses-type 'ASSERTED_NOT_READY'
run_assertion push-malformed-status-entry nonzero malformed-status-entry 'ASSERTED_NOT_READY'
run_assertion push-unknown nonzero unknown 'ASSERTED_NOT_READY'
run_assertion push-large-payload not126 large-success 'state=terminal-success'
run_assertion credential-unresolvable zero credential-unresolvable 'CANNOT_ASSERT'
run_assertion provider-unreachable zero unreachable 'CANNOT_ASSERT'
# Merge readiness remains fail-closed and requires exact-head terminal success.
MOSAIC_TEST_PURPOSE=merge run_assertion merge-success zero success 'state=terminal-success'
MOSAIC_TEST_PURPOSE=merge run_assertion merge-failure nonzero failure 'ASSERTED_NOT_READY state=terminal-failure'
MOSAIC_TEST_PURPOSE=merge run_assertion merge-no-status nonzero no-status 'ASSERTED_NOT_READY state=no-status'
MOSAIC_TEST_PURPOSE=merge run_assertion merge-unknown nonzero unknown 'ASSERTED_NOT_READY state=unknown'
# Positive liveness control: a subject mutant hangs before the branch lookup
# can reach the status provider. Only the independent real-clock watchdog may
# terminate it, and its failure must be distinct from subject timeout rc=124.
set +e
watchdog_output=$(MOSAIC_STUB_BRANCH_MODE=hang-before-provider run_guard success "$AUDIT_LOG" 2>&1)
watchdog_rc=$?
set -e
if [[ "$watchdog_rc" -ne "$WATCHDOG_EXIT" ]]; then
echo "FAIL watchdog-control: expected hang-specific rc=$WATCHDOG_EXIT, got rc=$watchdog_rc" >&2
failures=$((failures + 1))
fi
if [[ "$watchdog_output" != *"FAIL HANG watchdog:"* ]]; then
echo "FAIL watchdog-control: expected distinct hang-specific diagnostic" >&2
printf '%s\n' "$watchdog_output" >&2
failures=$((failures + 1))
fi
if [[ -e "$STATUS_OBSERVED" ]]; then
echo "FAIL watchdog-control: hanging mutant unexpectedly reached the status provider" >&2
failures=$((failures + 1))
fi
if [[ ! -s "$AUDIT_LOG" ]] || ! grep -q '"outcome":"CANNOT_ASSERT"' "$AUDIT_LOG"; then
echo "FAIL provider-unreachable-audit: expected durable CANNOT_ASSERT JSONL record" >&2
failures=$((failures + 1))
@@ -160,6 +300,7 @@ if [[ "$merge_unreachable_output" != *"CANNOT_ASSERT"* ]]; then
echo "FAIL merge-provider-unreachable: expected loud CANNOT_ASSERT diagnostic" >&2
failures=$((failures + 1))
fi
assert_provider_observed merge-provider-unreachable
merge_audit_lines_after=$(wc -l < "$AUDIT_LOG")
if [[ "$merge_audit_lines_after" -le "$merge_audit_lines_before" ]]; then
echo "FAIL merge-provider-unreachable: expected an additional audit record" >&2
@@ -223,6 +364,7 @@ if [[ "$audit_failure_output" != *"audit"* ]]; then
echo "FAIL audit-unavailable: expected loud audit failure diagnostic" >&2
failures=$((failures + 1))
fi
assert_provider_observed audit-unavailable
if [[ "$failures" -ne 0 ]]; then
echo "ci-queue-wait tri-state regression failed ($failures assertions)" >&2
@@ -1,16 +1,26 @@
#!/usr/bin/env bash
# Regression harness for `git-credential-mosaic` — per-agent Gitea identity
# resolution (Gate-16 author≠reviewer separation).
# resolution (Gate-16 author≠reviewer separation) and fail-closed refusal.
#
# Covers:
# 1. Identity resolution priority: MOSAIC_GIT_IDENTITY env > git config
# mosaic.gitIdentity (per-worktree) > git-supplied username.
# 2. Correct per-slot token file path chosen per host
# 2. Correct token file path chosen per host
# (gitea-usc-<id>.token vs gitea-mosaicstack-<id>.token).
# 3. Per-slot token present -> emits that identity + token.
# 4. Per-slot token absent -> falls back to the shared account
# (backward-compat / no-op for hosts without per-slot tokens).
# 5. Unknown/unrelated host -> exits 0 with no output (passthrough).
# 3. Credential store selection: an identity with a directory under
# <brain>/fleet/agents/ is a SEAT and is read ONLY from its own secrets/
# slot; any other identity is a SERVICE and is read from the framework
# store. No precedence between them and NO fallback from one to the other.
# 4. Fail-closed: an identity that resolves but has no credential is REFUSED —
# no output, nonzero exit, a stderr diagnostic, and a durable spool record.
# The shared account is never emitted in its place.
# 5. Fail-closed: no identity resolvable on a host that runs a fleet is also
# REFUSED, because records made there must name the agent that made them.
# 6. Backward compatibility, the one surviving fallback: no identity AND no
# fleet -> shared account, unchanged. On such a host the shared account is
# the operator's own and there is no attribution to lose.
# 7. Unknown/unrelated host -> exits 0 with no output (passthrough).
# 8. Non-"get" verb -> exits 0 with no output.
#
# Uses stubbed token files under a fake HOME + a real (throwaway) git repo.
# NEVER reads real secrets or touches the real ~/.config/mosaic/secrets.
@@ -21,6 +31,9 @@ SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
WORK_DIR="${MOSAIC_TEST_WORK_DIR:-$PWD/.mosaic-test-work/git-credential-mosaic}"
FAKE_HOME="$WORK_DIR/home"
REPO_DIR="$WORK_DIR/repo"
BRAIN_DIR="$WORK_DIR/brain"
SPOOL_DIR="$WORK_DIR/spool"
SVC_STORE="$FAKE_HOME/.config/mosaic/secrets/gitea-tokens"
# Mirror the real deployed layout (~/.config/mosaic/tools/{git,_lib}/) under the
# fake HOME: git-credential-mosaic resolves its credentials.sh sibling via a
# script-relative path (BASH_SOURCE), so the copy must live next to a stubbed
@@ -28,10 +41,10 @@ REPO_DIR="$WORK_DIR/repo"
HELPER="$FAKE_HOME/.config/mosaic/tools/git/git-credential-mosaic"
rm -rf "$WORK_DIR"
mkdir -p "$FAKE_HOME/.config/mosaic/secrets/gitea-tokens" \
mkdir -p "$SVC_STORE" \
"$FAKE_HOME/.config/mosaic/tools/git" \
"$FAKE_HOME/.config/mosaic/tools/_lib" \
"$REPO_DIR"
"$REPO_DIR" "$BRAIN_DIR"
cp "$SCRIPT_DIR/git-credential-mosaic" "$HELPER"
chmod +x "$HELPER"
@@ -68,7 +81,8 @@ run_helper() {
local host="$1" username_in="$2"; shift 2
(
cd "$REPO_DIR"
env -i HOME="$FAKE_HOME" PATH="$PATH" "$@" bash "$HELPER" get <<EOF
env -i HOME="$FAKE_HOME" PATH="$PATH" MOSAIC_CREDENTIAL_SPOOL="$SPOOL_DIR" "$@" \
bash "$HELPER" get <<EOF
host=$host
username=$username_in
@@ -76,20 +90,61 @@ EOF
)
}
# A refusal must be observable in four independent ways: nonzero exit, EMPTY
# stdout, a stderr diagnostic naming the identity and host, and — the assertion
# that actually catches a regression to the old behavior — NO shared token value
# anywhere in the output. Checking only the exit code would pass against a helper
# that emitted the shared credential and then exited 1.
assert_fail_closed() {
local desc="$1" host="$2" username_in="$3" want_in_stderr="$4"; shift 4
local stderr_file="$WORK_DIR/stderr.tmp"
: > "$stderr_file"
set +e
local stdout
stdout=$(run_helper "$host" "$username_in" "$@" 2>"$stderr_file")
local rc=$?
set -e
local stderr
stderr=$(cat "$stderr_file")
if [[ "$rc" -eq 0 ]]; then
echo "FAIL: $desc — expected nonzero exit, got 0 (stdout='$stdout')" >&2
fail=1
fi
if [[ -n "$stdout" ]]; then
echo "FAIL: $desc — expected empty stdout (nothing emitted), got '$stdout'" >&2
fail=1
fi
if [[ "$stdout$stderr" == *"shared-mosaicstack-token"* || "$stdout$stderr" == *"shared-usc-token"* ]]; then
echo "FAIL: $desc — a SHARED token value appeared in the output. The shared-account fallback must be gone:" >&2
echo "$stdout$stderr" >&2
fail=1
fi
if [[ -n "$want_in_stderr" && "$stderr" != *"$want_in_stderr"* ]]; then
echo "FAIL: $desc — stderr does not contain '$want_in_stderr':" >&2
echo "$stderr" >&2
fail=1
fi
if [[ "$stderr" != *"$host"* ]]; then
echo "FAIL: $desc — stderr does not name the host '$host':" >&2
echo "$stderr" >&2
fail=1
fi
}
# ---------------------------------------------------------------------------
# 1. No identity resolvable anywhere, no per-slot token -> shared fallback
# (backward-compat: unchanged behavior when nothing is configured).
# 1. Backward compatibility: nothing resolvable, and NO fleet on this host ->
# shared account, unchanged. This is the only surviving fallback.
# ---------------------------------------------------------------------------
git -C "$REPO_DIR" config --unset mosaic.gitIdentity 2>/dev/null || true
out=$(run_helper "git.mosaicstack.dev" "")
assert_eq "shared fallback: username" "username=git" "$(echo "$out" | grep '^username=')"
assert_eq "shared fallback: password" "password=shared-mosaicstack-token" "$(echo "$out" | grep '^password=')"
assert_eq "no identity + no fleet: username" "username=git" "$(echo "$out" | grep '^username=')"
assert_eq "no identity + no fleet: password" "password=shared-mosaicstack-token" "$(echo "$out" | grep '^password=')"
# ---------------------------------------------------------------------------
# 2. git-supplied username resolves to an identity WITH a per-slot token ->
# that identity + token wins over the shared account.
# 2. git-supplied username resolves to a SERVICE identity WITH a token in the
# framework store -> that identity + token wins over the shared account.
# ---------------------------------------------------------------------------
echo -n "agentA-mosaicstack-token" > "$FAKE_HOME/.config/mosaic/secrets/gitea-tokens/gitea-mosaicstack-agentA.token"
echo -n "agentA-mosaicstack-token" > "$SVC_STORE/gitea-mosaicstack-agentA.token"
out=$(run_helper "git.mosaicstack.dev" "agentA")
assert_eq "username-resolved identity: username" "username=agentA" "$(echo "$out" | grep '^username=')"
assert_eq "username-resolved identity: password" "password=agentA-mosaicstack-token" "$(echo "$out" | grep '^password=')"
@@ -97,7 +152,7 @@ assert_eq "username-resolved identity: password" "password=agentA-mosaicstack-to
# ---------------------------------------------------------------------------
# 3. git config mosaic.gitIdentity (per-worktree) beats git-supplied username.
# ---------------------------------------------------------------------------
echo -n "agentB-mosaicstack-token" > "$FAKE_HOME/.config/mosaic/secrets/gitea-tokens/gitea-mosaicstack-agentB.token"
echo -n "agentB-mosaicstack-token" > "$SVC_STORE/gitea-mosaicstack-agentB.token"
git -C "$REPO_DIR" config mosaic.gitIdentity agentB
out=$(run_helper "git.mosaicstack.dev" "agentA")
assert_eq "git-config beats username: username" "username=agentB" "$(echo "$out" | grep '^username=')"
@@ -106,54 +161,210 @@ assert_eq "git-config beats username: password" "password=agentB-mosaicstack-tok
# ---------------------------------------------------------------------------
# 4. MOSAIC_GIT_IDENTITY env beats git config mosaic.gitIdentity.
# ---------------------------------------------------------------------------
echo -n "agentC-mosaicstack-token" > "$FAKE_HOME/.config/mosaic/secrets/gitea-tokens/gitea-mosaicstack-agentC.token"
echo -n "agentC-mosaicstack-token" > "$SVC_STORE/gitea-mosaicstack-agentC.token"
out=$(run_helper "git.mosaicstack.dev" "agentA" MOSAIC_GIT_IDENTITY=agentC)
assert_eq "env beats git-config: username" "username=agentC" "$(echo "$out" | grep '^username=')"
assert_eq "env beats git-config: password" "password=agentC-mosaicstack-token" "$(echo "$out" | grep '^password=')"
git -C "$REPO_DIR" config --unset mosaic.gitIdentity
# ---------------------------------------------------------------------------
# 5. Identity resolves, but no matching per-slot token file -> falls back to
# the shared account (per-agent identity is opt-in, not a hard requirement).
# 5. Correct token PATH is chosen per host: same agent id, different host
# prefix (gitea-usc- vs gitea-mosaicstack-).
# ---------------------------------------------------------------------------
out=$(run_helper "git.mosaicstack.dev" "no-such-agent")
assert_eq "no per-slot token: username" "username=git" "$(echo "$out" | grep '^username=')"
assert_eq "no per-slot token: password" "password=shared-mosaicstack-token" "$(echo "$out" | grep '^password=')"
# ---------------------------------------------------------------------------
# 6. Correct per-slot token PATH is chosen per host: same agent id, different
# host prefix (gitea-usc- vs gitea-mosaicstack-).
# ---------------------------------------------------------------------------
echo -n "agentD-usc-token" > "$FAKE_HOME/.config/mosaic/secrets/gitea-tokens/gitea-usc-agentD.token"
echo -n "agentD-usc-token" > "$SVC_STORE/gitea-usc-agentD.token"
out=$(run_helper "git.uscllc.com" "agentD")
assert_eq "host-scoped token path (usc): username" "username=agentD" "$(echo "$out" | grep '^username=')"
assert_eq "host-scoped token path (usc): password" "password=agentD-usc-token" "$(echo "$out" | grep '^password=')"
# agentD has NO mosaicstack token -> must fall back to shared mosaicstack, not
# leak the usc token across hosts.
out=$(run_helper "git.mosaicstack.dev" "agentD")
assert_eq "host-scoped token path (cross-host must not leak): username" "username=git" "$(echo "$out" | grep '^username=')"
assert_eq "host-scoped token path (cross-host must not leak): password" "password=shared-mosaicstack-token" "$(echo "$out" | grep '^password=')"
# ---------------------------------------------------------------------------
# 7. Unrelated/unknown host -> exit 0, no output (passthrough for non-Gitea
# remotes, e.g. github.com via a different credential helper).
# 6. FAIL CLOSED — identity resolves, no credential for it on this host. Must
# NOT borrow the shared account, and must NOT leak the same agent's token
# for a DIFFERENT host (agentD holds a usc token and no mosaicstack one).
# ---------------------------------------------------------------------------
assert_fail_closed "cross-host absence refuses (no shared fallback, no cross-host leak)" \
"git.mosaicstack.dev" "agentD" "gitea-mosaicstack-agentD.token"
# The agent's own usc token must not appear either.
: > "$WORK_DIR/stderr.tmp"
set +e
leak_out=$(run_helper "git.mosaicstack.dev" "agentD" 2>"$WORK_DIR/stderr.tmp")
set -e
if [[ "$leak_out$(cat "$WORK_DIR/stderr.tmp")" == *"agentD-usc-token"* ]]; then
echo "FAIL: cross-host leak — the usc token value appeared on a mosaicstack request" >&2
fail=1
fi
assert_fail_closed "unknown identity refuses (shared account never substituted)" \
"git.mosaicstack.dev" "no-such-agent" "no-token-for-identity"
# ---------------------------------------------------------------------------
# 7. A refusal leaves a durable spool record, and that record contains no token.
# The stderr diagnostic is transient; the record is what an operator reads
# afterwards, so it must exist independently of anyone watching the terminal.
# ---------------------------------------------------------------------------
spool_file=$(find "$SPOOL_DIR" -maxdepth 1 -name '*.jsonl' | head -n 1)
if [[ -z "$spool_file" ]]; then
echo "FAIL: fail-closed left no spool record under $SPOOL_DIR" >&2
fail=1
else
spool_body=$(cat "$spool_file")
assert_eq "spool record names the refused identity" "1" \
"$(grep -c '"identity":"no-such-agent"' "$spool_file" | head -n 1)"
if [[ "$spool_body" == *"shared-"*"-token"* || "$spool_body" == *"agentD-usc-token"* ]]; then
echo "FAIL: spool record contains a token value:" >&2
echo "$spool_body" >&2
fail=1
fi
fi
# ---------------------------------------------------------------------------
# 8. SEAT identity: an id with a directory under <brain>/fleet/agents/ is read
# from its OWN secrets/ slot, not from the framework store.
# ---------------------------------------------------------------------------
mkdir -p "$BRAIN_DIR/fleet/agents/seatE/secrets"
echo -n "seatE-slot-token" > "$BRAIN_DIR/fleet/agents/seatE/secrets/gitea-mosaicstack-seatE.token"
out=$(run_helper "git.mosaicstack.dev" "seatE" MOSAIC_BRAIN_HOME="$BRAIN_DIR")
assert_eq "seat reads its own slot: username" "username=seatE" "$(echo "$out" | grep '^username=')"
assert_eq "seat reads its own slot: password" "password=seatE-slot-token" "$(echo "$out" | grep '^password=')"
# ---------------------------------------------------------------------------
# 9. NO CROSS-STORE FALLBACK — the assertion this whole store-selection design
# exists for. seatF is a seat (it has a directory) with an EMPTY slot, while
# a framework-store token of the identical name is present and readable.
# The helper must refuse rather than read it: one credential, one location,
# and a seat that reads a same-named service credential is exactly the
# silent-substitution failure the fail-closed rule removes.
# ---------------------------------------------------------------------------
mkdir -p "$BRAIN_DIR/fleet/agents/seatF/secrets"
echo -n "seatF-SERVICE-STORE-token" > "$SVC_STORE/gitea-mosaicstack-seatF.token"
assert_fail_closed "seat with empty slot does NOT fall back to the framework store" \
"git.mosaicstack.dev" "seatF" "fleet/agents/seatF/secrets" MOSAIC_BRAIN_HOME="$BRAIN_DIR"
: > "$WORK_DIR/stderr.tmp"
set +e
xstore_out=$(run_helper "git.mosaicstack.dev" "seatF" MOSAIC_BRAIN_HOME="$BRAIN_DIR" 2>"$WORK_DIR/stderr.tmp")
set -e
if [[ "$xstore_out$(cat "$WORK_DIR/stderr.tmp")" == *"seatF-SERVICE-STORE-token"* ]]; then
echo "FAIL: cross-store fallback — a seat read the framework store's same-named token" >&2
fail=1
fi
# Control: that framework-store token IS readable, so the refusal above is the
# store rule firing and not an unreadable file. A non-seat identity pointed at
# the same file gets it.
out=$(run_helper "git.mosaicstack.dev" "seatF" MOSAIC_BRAIN_HOME="$WORK_DIR/no-such-brain")
assert_eq "control — same file IS readable for a non-seat identity" \
"password=seatF-SERVICE-STORE-token" "$(echo "$out" | grep '^password=')"
# ---------------------------------------------------------------------------
# 10. FAIL CLOSED — no identity resolvable, but this host runs a fleet. Where
# seats exist, an unattributable request is refused instead of receiving
# the shared account. Contrast with case 1, which is the same request on a
# host with no fleet and still returns the shared account.
# ---------------------------------------------------------------------------
git -C "$REPO_DIR" config --unset mosaic.gitIdentity 2>/dev/null || true
assert_fail_closed "no identity on a fleet host refuses" \
"git.mosaicstack.dev" "" "no-identity" MOSAIC_BRAIN_HOME="$BRAIN_DIR"
# ---------------------------------------------------------------------------
# 11. The brain home defaults to ~/.mosaic when MOSAIC_BRAIN_HOME is unset —
# the fleet gate must fire on the default path too, not only on an
# explicitly injected one. Case 1 ran before this directory existed; the
# same call now refuses, which also proves case 1 was measuring the
# no-fleet branch rather than passing for an unrelated reason.
# ---------------------------------------------------------------------------
mkdir -p "$FAKE_HOME/.mosaic/fleet/agents"
assert_fail_closed "fleet gate fires on the default ~/.mosaic brain home" \
"git.mosaicstack.dev" "" "no-identity"
# ---------------------------------------------------------------------------
# 12. Unrelated/unknown host -> exit 0, no output (passthrough for non-Gitea
# remotes, e.g. github.com via a different credential helper). A fleet host
# must not refuse a host this helper does not own.
# ---------------------------------------------------------------------------
out=$(run_helper "github.com" "agentA")
assert_eq "unknown host: no output" "" "$out"
out=$(run_helper "github.com" "" MOSAIC_BRAIN_HOME="$BRAIN_DIR")
assert_eq "unknown host on a fleet host: still passthrough, not a refusal" "" "$out"
# ---------------------------------------------------------------------------
# 8. Non-"get" verb (store/erase) -> exit 0, no output (git-credential
# protocol: this helper only implements get).
# 13. Non-"get" verb (store/erase) -> exit 0, no output (git-credential
# protocol: this helper only implements get).
# ---------------------------------------------------------------------------
store_out=$(cd "$REPO_DIR" && env -i HOME="$FAKE_HOME" PATH="$PATH" bash "$HELPER" store <<EOF
host=git.mosaicstack.dev
username=agentA
username=no-such-agent
password=whatever
EOF
)
assert_eq "store verb: no output" "" "$store_out"
# ---------------------------------------------------------------------------
# 14. The escalation record is machine-readable even when a field carries a
# quote or a backslash. A cwd is arbitrary operator text; an unescaped one
# silently turns the spool into unparseable JSONL, and the operator only
# finds out while reading the record that explains an outage.
# ---------------------------------------------------------------------------
hostile_dir="$WORK_DIR/we\"ird\\dir"
mkdir -p "$hostile_dir"
hostile_spool="$WORK_DIR/spool-hostile"
(
cd "$hostile_dir"
env -i HOME="$FAKE_HOME" PATH="$PATH" MOSAIC_CREDENTIAL_SPOOL="$hostile_spool" \
MOSAIC_GIT_IDENTITY=no-such-agent \
bash "$HELPER" get <<EOF >/dev/null 2>&1
host=git.mosaicstack.dev
username=no-such-agent
EOF
) || true
# Deliberately not `ls ... | head -1`: under `set -o pipefail` a missed glob
# makes ls exit 2, the pipeline inherits it, and `set -e` kills this suite with
# zero output — the same silent-nonzero failure this file exists to catch.
record_file=""
for candidate in "$hostile_spool"/*.jsonl; do
if [[ -e "$candidate" ]]; then
record_file="$candidate"
break
fi
done
if [[ -z "$record_file" ]]; then
echo "FAIL: hostile cwd — no escalation record was written at all" >&2
fail=1
elif ! python3 -c 'import json,sys
for line in open(sys.argv[1]):
line = line.strip()
if line:
json.loads(line)' "$record_file" 2>/dev/null; then
echo "FAIL: hostile cwd — escalation record is not parseable JSONL:" >&2
cat "$record_file" >&2
fail=1
fi
# ---------------------------------------------------------------------------
# 15. When the spool cannot be created, the diagnostic must NOT name a record
# path. Naming a file that was never written sends the operator to an
# empty path on exactly the hosts where the escalation was lost.
# ---------------------------------------------------------------------------
unwritable_spool="/proc/mosaic-credential-spool-cannot-exist"
nospool_err=$(
cd "$REPO_DIR"
env -i HOME="$FAKE_HOME" PATH="$PATH" MOSAIC_CREDENTIAL_SPOOL="$unwritable_spool" \
MOSAIC_GIT_IDENTITY=no-such-agent \
bash "$HELPER" get <<EOF 2>&1 >/dev/null
host=git.mosaicstack.dev
username=no-such-agent
EOF
) || true
if [[ "$nospool_err" == *"record: $unwritable_spool/"* ]]; then
echo "FAIL: unwritable spool — diagnostic names a record file that was never written" >&2
fail=1
fi
if [[ "$nospool_err" != *"NOT WRITTEN"* ]]; then
echo "FAIL: unwritable spool — diagnostic does not say the record was not written" >&2
echo "$nospool_err" >&2
fail=1
fi
if [[ "$fail" -eq 0 ]]; then
echo "git-credential-mosaic identity resolution regression passed"
fi
@@ -23,6 +23,17 @@
# 6. Scope containment: identity requested + an UNRECOGNIZED Gitea host (no
# per-slot token scheme) -> Patch 2b does not apply; existing
# fall-through behavior is unchanged.
# 7. Credential store selection: an identity with a directory under
# <brain>/fleet/agents/ is a SEAT and is read ONLY from its own secrets/
# slot; any other identity is a SERVICE and is read from the framework
# store. No precedence between them and NO fallback from one to the
# other — a seat with an empty slot is REFUSED even when a same-named
# token sits in the framework store.
# 8. Fail loud when NO identity resolves on a host that runs a fleet: where
# seats exist, an unattributable API call is refused rather than made
# under the shared account. On a host with no fleet the same call still
# returns the shared token (case 1), which is what keeps this change a
# no-op for non-fleet operators of the framework.
#
# Uses a stubbed credentials.json + stubbed per-slot token files under a fake
# HOME. NEVER reads real secrets or touches the real ~/.config/mosaic/secrets.
@@ -210,6 +221,94 @@ if [[ "$err" == *"no per-slot token at"* ]]; then
fi
git -C "$REPO_DIR" config --unset mosaic.gitIdentity
# ---------------------------------------------------------------------------
# 7. SEAT identity: an id with a directory under <brain>/fleet/agents/ is read
# from its OWN secrets/ slot, not from the framework store. The brain home
# is resolved exactly as packages/mosaic/src/fleet/brain-home.ts does it:
# MOSAIC_BRAIN_HOME, else ~/.mosaic.
# ---------------------------------------------------------------------------
BRAIN_DIR="$WORK_DIR/brain"
mkdir -p "$BRAIN_DIR/fleet/agents/seatE/secrets"
echo -n "seatE-slot-token" > "$BRAIN_DIR/fleet/agents/seatE/secrets/gitea-mosaicstack-seatE.token"
out=$(call_get_gitea_token "git.mosaicstack.dev" MOSAIC_GIT_IDENTITY=seatE MOSAIC_BRAIN_HOME="$BRAIN_DIR")
assert_eq "seat reads its own slot" "seatE-slot-token" "$out"
# ---------------------------------------------------------------------------
# 8. NO CROSS-STORE FALLBACK. seatF is a seat (it has a directory) with an
# EMPTY slot, while a framework-store token of the identical name is
# present and readable. It must be REFUSED rather than served that token:
# one credential, one location. A seat that silently reads a same-named
# service credential is the same substitution failure as the shared-account
# fallback, one store further down.
# ---------------------------------------------------------------------------
mkdir -p "$BRAIN_DIR/fleet/agents/seatF/secrets"
echo -n "seatF-SERVICE-STORE-token" > "$FAKE_HOME/.config/mosaic/secrets/gitea-tokens/gitea-mosaicstack-seatF.token"
assert_failloud "seat with empty slot does NOT fall back to the framework store" \
"git.mosaicstack.dev" "seatF" \
"$BRAIN_DIR/fleet/agents/seatF/secrets/gitea-mosaicstack-seatF.token" \
MOSAIC_GIT_IDENTITY=seatF MOSAIC_BRAIN_HOME="$BRAIN_DIR"
# assert_failloud only screens stderr for the word "shared"; this store's token
# is not named that, so check for its value explicitly.
set +e
xstore_out=$(call_get_gitea_token "git.mosaicstack.dev" MOSAIC_GIT_IDENTITY=seatF MOSAIC_BRAIN_HOME="$BRAIN_DIR" 2>"$WORK_DIR/stderr-xstore.tmp")
set -e
if [[ "$xstore_out$(cat "$WORK_DIR/stderr-xstore.tmp")" == *"seatF-SERVICE-STORE-token"* ]]; then
echo "FAIL: cross-store fallback — a seat was served the framework store's same-named token" >&2
fail=1
fi
# Control: that framework-store token IS readable, so the refusal above is the
# store rule firing and not an unreadable file. The same id, resolved against a
# brain home where it is not a seat, gets it.
out=$(call_get_gitea_token "git.mosaicstack.dev" MOSAIC_GIT_IDENTITY=seatF MOSAIC_BRAIN_HOME="$WORK_DIR/no-such-brain")
assert_eq "control — same file IS readable for a non-seat identity" "seatF-SERVICE-STORE-token" "$out"
# ---------------------------------------------------------------------------
# 9. FAIL LOUD — no identity resolvable, but this host runs a fleet. Contrast
# with case 1: the identical call on a host with no fleet still returns the
# shared token.
# ---------------------------------------------------------------------------
git -C "$REPO_DIR" config --unset mosaic.gitIdentity 2>/dev/null || true
set +e
noid_out=$(call_get_gitea_token "git.mosaicstack.dev" MOSAIC_BRAIN_HOME="$BRAIN_DIR" 2>"$WORK_DIR/stderr-noid.tmp")
noid_rc=$?
set -e
noid_err=$(cat "$WORK_DIR/stderr-noid.tmp")
if [[ "$noid_rc" -eq 0 ]]; then
echo "FAIL: no identity on a fleet host — expected nonzero return, got 0 (stdout='$noid_out')" >&2
fail=1
fi
if [[ -n "$noid_out" ]]; then
echo "FAIL: no identity on a fleet host — expected empty stdout, got '$noid_out'" >&2
fail=1
fi
if [[ "$noid_out" == *"shared-mosaicstack-token"* || "$noid_err" == *"shared-mosaicstack-token"* ]]; then
echo "FAIL: no identity on a fleet host — the shared token was served anyway:" >&2
echo "$noid_out$noid_err" >&2
fail=1
fi
if [[ "$noid_err" != *"MOSAIC_GIT_IDENTITY"* ]]; then
echo "FAIL: no identity on a fleet host — stderr does not say how to set an identity:" >&2
echo "$noid_err" >&2
fail=1
fi
# ---------------------------------------------------------------------------
# 10. The brain home defaults to ~/.mosaic when MOSAIC_BRAIN_HOME is unset —
# the fleet gate must fire on the default path too, not only on an
# explicitly injected one. Case 1 ran before this directory existed; the
# same call now refuses, which also proves case 1 was measuring the
# no-fleet branch rather than passing for an unrelated reason.
# ---------------------------------------------------------------------------
mkdir -p "$FAKE_HOME/.mosaic/fleet/agents"
set +e
dflt_out=$(call_get_gitea_token "git.mosaicstack.dev" 2>"$WORK_DIR/stderr-dflt.tmp")
dflt_rc=$?
set -e
if [[ "$dflt_rc" -eq 0 || -n "$dflt_out" ]]; then
echo "FAIL: fleet gate did not fire on the default ~/.mosaic brain home (rc=$dflt_rc stdout='$dflt_out')" >&2
fail=1
fi
if [[ "$fail" -eq 0 ]]; then
echo "get_gitea_token identity resolution regression passed"
fi
@@ -51,22 +51,23 @@ for arg in "$@"; do
prev=""
continue
fi
if [[ "$prev" == "-d" ]]; then
if [[ "$prev" == "data" ]]; then
post_data="$arg"
[[ "$post_data" == @* ]] && post_data=$(<"${post_data#@}")
prev=""
continue
fi
if [[ "$arg" == "-o" ]]; then
prev="-o"
if [[ "$prev" == "config" ]]; then
[[ "$arg" == "-" ]] && cat >/dev/null
prev=""
continue
fi
if [[ "$arg" == "-d" ]]; then
prev="-d"
continue
fi
if [[ "$arg" == "-w" ]]; then
write_code=true
fi
case "$arg" in
-o) prev="-o" ;;
-d|--data|--data-binary) prev="data" ;;
-K|--config) prev="config" ;;
-w) write_code=true ;;
esac
done
emit_response() {
local body="$1"
@@ -17,9 +17,10 @@ make_fixture() {
cp "$SCRIPT_DIR/detect-platform.sh" "$tools/detect-platform.sh"
git -C "$root/repo" init -q
git -C "$root/repo" remote add origin "$remote"
local base_branch="${3:-main}"
cat > "$tools/pr-metadata.sh" <<SH
#!/usr/bin/env bash
printf '%s\n' '{"baseRefName":"main","headRefName":"fix/pinned","headRefOid":"$SHA","headRepository":"contributor/widgets-fork"}'
printf '%s\n' '{"baseRefName":"$base_branch","headRefName":"fix/pinned","headRefOid":"$SHA","headRepository":"contributor/widgets-fork"}'
SH
cat > "$tools/ci-queue-wait.sh" <<'SH'
#!/usr/bin/env bash
@@ -29,20 +30,37 @@ SH
}
rm -rf "$WORK_DIR"
make_fixture gitea https://git.example.test/acme/widgets.git
make_fixture github https://github.com/acme/widgets.git
make_fixture gitea https://git.example.test/acme/widgets.git next
make_fixture github https://github.com/acme/widgets.git main
cat > "$WORK_DIR/gitea/curl" <<'SH'
#!/usr/bin/env bash
set -euo pipefail
payload=""
for ((i=1; i<=$#; i++)); do
if [[ "${!i}" == "-d" ]]; then
j=$((i + 1))
payload="${!j}"
fi
out_file=""
while [[ $# -gt 0 ]]; do
case "$1" in
-d|--data|--data-binary)
payload="$2"
[[ "$payload" == @* ]] && payload=$(<"${payload#@}")
shift 2
;;
-o)
out_file="$2"
shift 2
;;
-K|--config)
[[ "$2" == "-" ]] && cat >/dev/null
shift 2
;;
-w|-X|-H)
shift 2
;;
*) shift ;;
esac
done
printf '%s' "$payload" > "${MOSAIC_MERGE_PAYLOAD_LOG:?}"
[[ -n "$out_file" ]] && printf '{}' > "$out_file"
printf '200'
SH
chmod +x "$WORK_DIR/gitea/curl"
@@ -0,0 +1,541 @@
#!/usr/bin/env bash
# Regression harness for the optional, identity-checked Gitea squash message.
set -u
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
SUBJECT="${MOSAIC_TEST_SUBJECT:-$SCRIPT_DIR/pr-merge.sh}"
WORK_DIR="${MOSAIC_TEST_WORK_DIR:-$PWD/.mosaic-test-work/pr-merge-message-field}"
ORIG_PATH="$PATH"
failures=0
rm -rf "$WORK_DIR"
mkdir -p "$WORK_DIR"
fail() {
echo "FAIL $1" >&2
failures=$((failures + 1))
}
make_case() {
local name="$1" case_dir
case_dir="$WORK_DIR/$name"
mkdir -p "$case_dir/bin" "$case_dir/agent"
cp "$SUBJECT" "$case_dir/pr-merge.sh"
chmod +x "$case_dir/pr-merge.sh"
cat > "$case_dir/detect-platform.sh" <<'SH'
#!/usr/bin/env bash
detect_platform() { PLATFORM=gitea; printf 'gitea\n'; }
get_repo_owner() { printf 'acme\n'; }
get_repo_name() { printf 'widgets\n'; }
get_remote_host() { printf 'git.example.test\n'; }
get_gitea_token() {
printf 'resolved\n' >> "${MOSAIC_TEST_TOKEN_RESOLUTION_LOG:?}"
if [[ "${MOSAIC_TEST_TOKEN_AVAILABLE:-true}" != "true" ]]; then
return 1
fi
printf 'fixture-token\n'
}
get_gitea_basic_auth() {
printf 'resolved\n' >> "${MOSAIC_TEST_BASIC_RESOLUTION_LOG:?}"
if [[ "${MOSAIC_TEST_BASIC_AVAILABLE:-false}" == "true" ]]; then
printf 'fixture-user:fixture-password\n'
return "${MOSAIC_TEST_BASIC_RC:-0}"
fi
return 1
}
get_gitea_login_for_host() { return 1; }
SH
cat > "$case_dir/pr-metadata.sh" <<'SH'
#!/usr/bin/env bash
if [[ "${MOSAIC_TEST_TITLE_MODE:-safe}" == "injection" ]]; then
title='Preserve authors\n\nCo-authored-by: victim <[email protected]>'
else
title='Preserve both branch authors'
fi
case "${MOSAIC_TEST_COMMITS_MODE:?}" in
verified) head_sha=2222222222222222222222222222222222222222 ;;
null-login|unsafe-identity) head_sha=3333333333333333333333333333333333333333 ;;
single) head_sha=1111111111111111111111111111111111111111 ;;
*) echo "unknown commits mode" >&2; exit 2 ;;
esac
printf '{"number":42,"title":"%s","author":"poster","baseRefName":"main","headRefName":"feature/fixture","headRefOid":"%s","headRepository":"acme/widgets"}\n' "$title" "$head_sha"
SH
cat > "$case_dir/ci-queue-wait.sh" <<'SH'
#!/usr/bin/env bash
exit 0
SH
cat > "$case_dir/bin/python3" <<'SH'
#!/usr/bin/env bash
for arg in "$@"; do
case "$arg" in
*"Preserve both branch authors"*|*"[email protected]"*)
: > "${MOSAIC_TEST_METADATA_ARGV_MARKER:?}"
;;
esac
done
exec "${MOSAIC_TEST_REAL_PYTHON:?}" "$@"
SH
cat > "$case_dir/bin/curl" <<'SH'
#!/usr/bin/env bash
set -eu
for arg in "$@"; do
case "$arg" in
*"Preserve both branch authors"*|*"[email protected]"*)
: > "${MOSAIC_TEST_METADATA_ARGV_MARKER:?}"
;;
esac
done
url=""
method="GET"
out_file=""
data=""
config=""
auth_mode="none"
has_max_filesize=0
has_max_time=0
has_connect_timeout=0
while [[ $# -gt 0 ]]; do
case "$1" in
-o)
out_file="$2"
shift 2
;;
-w)
shift 2
;;
-X)
method="$2"
shift 2
;;
-d|--data|--data-binary)
data="$2"
if [[ "$data" == @* ]]; then
data=$(<"${data#@}")
fi
shift 2
;;
-K|--config)
if [[ "$2" == "-" ]]; then
config=$(cat)
fi
shift 2
;;
--max-filesize)
has_max_filesize=1
shift 2
;;
--max-time)
has_max_time=1
shift 2
;;
--connect-timeout)
has_connect_timeout=1
shift 2
;;
-H|--header|-u|--user)
if [[ "$2" == *"fixture-token"* ]]; then
: > "${MOSAIC_TEST_TOKEN_ARGV_MARKER:?}"
fi
if [[ "$2" == *"fixture-password"* ]]; then
: > "${MOSAIC_TEST_BASIC_ARGV_MARKER:?}"
fi
shift 2
;;
http://*|https://*)
url="$1"
shift
;;
*)
shift
;;
esac
done
if [[ "$config" == *"Authorization: token fixture-token"* ]]; then
auth_mode="token"
: > "${MOSAIC_TEST_AUTH_CONFIG_MARKER:?}"
elif [[ "$config" == *"user = \"fixture-user:fixture-password\""* ]]; then
auth_mode="basic"
: > "${MOSAIC_TEST_BASIC_CONFIG_MARKER:?}"
fi
printf '%s %s %s\n' "$method" "$auth_mode" "$url" >> "${MOSAIC_TEST_CURL_LOG:?}"
printf '%s:%s:%s\n' "$has_max_filesize" "$has_max_time" "$has_connect_timeout" >> "${MOSAIC_TEST_CURL_BOUNDS_LOG:?}"
case "$url" in
*/pulls/42)
case "${MOSAIC_TEST_COMMITS_MODE:?}" in
verified) head_sha=2222222222222222222222222222222222222222 ;;
null-login|unsafe-identity) head_sha=3333333333333333333333333333333333333333 ;;
single) head_sha=1111111111111111111111111111111111111111 ;;
*) echo "unknown commits mode" >&2; exit 2 ;;
esac
if [[ "${MOSAIC_TEST_HEAD_MODE:-stable}" == "moved" ]]; then
head_sha=4444444444444444444444444444444444444444
fi
body="{\"head\":{\"sha\":\"$head_sha\"}}"
code=200
if [[ "${MOSAIC_TEST_FALLBACK_MODE:-none}" == "inspection" && "$auth_mode" == "token" ]]; then
body='{"message":"token rejected"}'
code=401
fi
;;
*/pulls/42/commits*)
case "${MOSAIC_TEST_COMMITS_MODE:?}" in
verified)
if [[ "${MOSAIC_TEST_EMAIL_MODE:-safe}" == "escape" ]]; then
body='[{"sha":"2222222222222222222222222222222222222222","commit":{"author":{"name":"Alice","email":"alice+\u001b[[email protected]"}},"author":{"login":"alice"}},{"sha":"1111111111111111111111111111111111111111","commit":{"author":{"name":"Poster","email":"[email protected]"}},"author":{"login":"poster"}}]'
else
body='[{"sha":"2222222222222222222222222222222222222222","commit":{"author":{"name":"Alice","email":"[email protected]"}},"author":{"login":"alice"}},{"sha":"1111111111111111111111111111111111111111","commit":{"author":{"name":"Poster","email":"[email protected]"}},"author":{"login":"poster"}}]'
fi
;;
null-login)
body='[{"sha":"1111111111111111111111111111111111111111","commit":{"author":{"name":"Poster","email":"[email protected]"}},"author":{"login":"poster"}},{"sha":"3333333333333333333333333333333333333333","commit":{"author":{"name":"Unresolved Author","email":"[email protected]\n\u001b[31m"}},"author":null}]'
;;
unsafe-identity)
body='[{"sha":"unsafe\n\u001b[31m","commit":{"author":{"name":"Unsafe","email":"not-an-email"}},"author":{"login":"unsafe"}},{"sha":"3333333333333333333333333333333333333333","commit":{"author":{"name":"Poster","email":"[email protected]"}},"author":{"login":"poster"}}]'
;;
single)
body='[{"sha":"1111111111111111111111111111111111111111","commit":{"author":{"name":"Poster","email":"[email protected]"}},"author":{"login":"poster"}}]'
;;
*)
echo "unknown commits mode" >&2
exit 2
;;
esac
code=200
if [[ "${MOSAIC_TEST_FALLBACK_MODE:-none}" == "inspection" && "$auth_mode" == "token" ]]; then
body='{"message":"token rejected"}'
code=401
fi
;;
*/pulls/42/merge)
body='{}'
code=200
if [[ "${MOSAIC_TEST_FALLBACK_MODE:-none}" == "merge" && "$auth_mode" == "token" ]]; then
body='{"message":"token rejected"}'
code=401
elif [[ "${MOSAIC_TEST_FALLBACK_MODE:-none}" == "provider-error" ]]; then
body='{"message":"branch policy rejected\n\u001b[31m"}'
code=409
elif [[ "${MOSAIC_TEST_FALLBACK_MODE:-none}" == "forbidden" ]]; then
body='{"message":"permission denied"}'
code=403
else
printf '%s' "$data" > "${MOSAIC_TEST_MERGE_PAYLOAD:?}"
fi
;;
*/users/*)
body='{"message":"not found"}'
code=404
;;
*)
body='{"message":"unexpected URL"}'
code=500
;;
esac
if [[ -n "$out_file" ]]; then
printf '%s' "$body" > "$out_file"
else
printf '%s' "$body"
fi
printf '%s' "$code"
case "${MOSAIC_TEST_CURL_FAILURE:-none}" in
oversize) exit 63 ;;
stalled) exit 28 ;;
esac
SH
chmod +x "$case_dir/detect-platform.sh" "$case_dir/pr-metadata.sh" \
"$case_dir/ci-queue-wait.sh" "$case_dir/bin/curl" "$case_dir/bin/python3"
printf '%s\n' "$case_dir"
}
run_case() {
local case_dir="$1" mode="$2"
shift 2
MOSAIC_TEST_COMMITS_MODE="$mode" \
MOSAIC_TEST_CURL_LOG="$case_dir/curl.log" \
MOSAIC_TEST_CURL_BOUNDS_LOG="$case_dir/curl-bounds.log" \
MOSAIC_TEST_MERGE_PAYLOAD="$case_dir/merge-payload.json" \
MOSAIC_TEST_TOKEN_ARGV_MARKER="$case_dir/token-in-argv" \
MOSAIC_TEST_BASIC_ARGV_MARKER="$case_dir/basic-in-argv" \
MOSAIC_TEST_AUTH_CONFIG_MARKER="$case_dir/auth-via-config" \
MOSAIC_TEST_BASIC_CONFIG_MARKER="$case_dir/basic-via-config" \
MOSAIC_TEST_TOKEN_RESOLUTION_LOG="$case_dir/token-resolution.log" \
MOSAIC_TEST_BASIC_RESOLUTION_LOG="$case_dir/basic-resolution.log" \
MOSAIC_TEST_METADATA_ARGV_MARKER="$case_dir/metadata-in-argv" \
MOSAIC_TEST_REAL_PYTHON="$(command -v python3)" \
AGENT_WORK_ROOT="$case_dir/agent" \
PATH="$case_dir/bin:$ORIG_PATH" \
"$case_dir/pr-merge.sh" -n 42 "$@"
}
# Verified multi-author path: the non-poster trailer is built from one commit's
# linked author.login and that same commit's author email. No /users lookup.
verified_dir=$(make_case verified)
set +e
verified_output=$(run_case "$verified_dir" verified --co-author-trailers --escalate-to tl-mosaic 2>&1)
verified_rc=$?
set -e
if [[ "$verified_rc" -ne 0 ]]; then
fail "verified multi-author merge expected rc=0, got rc=$verified_rc: $verified_output"
elif [[ ! -s "$verified_dir/merge-payload.json" ]]; then
fail "verified multi-author merge did not reach the API payload"
else
python3 - "$verified_dir/merge-payload.json" <<'PY' || fail "verified payload did not preserve squash and exact message fields"
import json
import sys
payload = json.load(open(sys.argv[1], encoding="utf-8"))
assert payload == {
"Do": "squash",
"head_commit_id": "2222222222222222222222222222222222222222",
"MergeTitleField": "Preserve both branch authors",
"MergeMessageField": "Co-authored-by: alice <[email protected]>",
}, payload
PY
fi
[[ -e "$verified_dir/auth-via-config" ]] || fail "verified path did not authenticate curl through stdin config"
[[ ! -e "$verified_dir/token-in-argv" ]] || fail "verified path placed the Gitea token in curl argv"
[[ ! -e "$verified_dir/metadata-in-argv" ]] || fail "verified path placed PR title or contributor email in child argv"
[[ "$(wc -l < "$verified_dir/token-resolution.log")" -eq 1 ]] || fail "verified path did not bind inspection and merge to one credential resolution"
if grep -q '/users/' "$verified_dir/curl.log" 2>/dev/null; then
fail "verified path performed a forbidden second /users lookup"
fi
if grep -qv '^1:1:1$' "$verified_dir/curl-bounds.log"; then
fail "verified path did not apply size/max-time/connect-time bounds to every provider download"
fi
# A linked email containing a terminal escape must block before mutation.
escape_email_dir=$(make_case escape-email)
set +e
escape_email_output=$(MOSAIC_TEST_EMAIL_MODE=escape run_case "$escape_email_dir" verified --co-author-trailers --escalate-to tl-mosaic 2>&1)
escape_email_rc=$?
set -e
[[ "$escape_email_rc" -ne 0 ]] || fail "control-byte email unexpectedly passed"
[[ "$escape_email_output" == *"unusable linked identity"* ]] || fail "control-byte email refusal lost its diagnostic"
[[ ! -e "$escape_email_dir/merge-payload.json" ]] || fail "control-byte email reached the merge API"
# Curl transfer and duration failures must remain failures even with HTTP 200.
for failure_mode in oversize stalled; do
failure_dir=$(make_case "curl-$failure_mode")
set +e
failure_output=$(MOSAIC_TEST_CURL_FAILURE="$failure_mode" run_case "$failure_dir" verified --co-author-trailers --escalate-to tl-mosaic 2>&1)
failure_rc=$?
set -e
[[ "$failure_rc" -ne 0 ]] || fail "curl $failure_mode failure was discarded: $failure_output"
[[ ! -e "$failure_dir/merge-payload.json" ]] || fail "curl $failure_mode failure reached the merge API"
done
# The authenticated head is re-read under the mutation credential but cannot
# replace the canonical preflight/review head. A move blocks before enumeration
# or mutation even though the provider returned a valid new SHA.
moved_dir=$(make_case moved-head)
set +e
moved_output=$(MOSAIC_TEST_HEAD_MODE=moved \
run_case "$moved_dir" verified --co-author-trailers --escalate-to tl-mosaic 2>&1)
moved_rc=$?
set -e
[[ "$moved_rc" -ne 0 ]] || fail "moved authenticated head unexpectedly passed"
[[ "$moved_output" == *"authenticated PR head moved from reviewed"* ]] || fail "moved head refusal lost its diagnostic"
[[ "$moved_output" == *"tl-mosaic"* ]] || fail "moved head refusal omitted the named escalation principal"
[[ ! -e "$moved_dir/merge-payload.json" ]] || fail "moved head refusal reached the merge API"
moved_sequence=$(awk '{print $1 ":" $2}' "$moved_dir/curl.log" | paste -sd, -)
[[ "$moved_sequence" == "GET:token" ]] || fail "moved head refusal performed post-move inspection/mutation (calls=$moved_sequence)"
# Token resolution failure is not an authentication response. It must fail
# closed instead of borrowing a Basic credential under a different principal.
token_missing_dir=$(make_case token-missing)
set +e
token_missing_output=$(MOSAIC_TEST_TOKEN_AVAILABLE=false MOSAIC_TEST_BASIC_AVAILABLE=true \
run_case "$token_missing_dir" single 2>&1)
token_missing_rc=$?
set -e
[[ "$token_missing_rc" -ne 0 ]] || fail "missing token unexpectedly borrowed Basic Auth"
[[ "$token_missing_output" == *"required Gitea token"* ]] || fail "missing token refusal lost its diagnostic"
[[ ! -e "$token_missing_dir/basic-resolution.log" ]] || fail "missing token resolved Basic Auth after identity failure"
[[ ! -e "$token_missing_dir/curl.log" ]] || fail "missing token reached a provider request"
# A failed Basic resolver must never use its nonempty output or reach mutation.
basic_rc_dir=$(make_case basic-resolver-rc)
set +e
basic_rc_output=$(MOSAIC_TEST_BASIC_AVAILABLE=true MOSAIC_TEST_BASIC_RC=91 MOSAIC_TEST_FALLBACK_MODE=inspection \
run_case "$basic_rc_dir" verified --co-author-trailers --escalate-to tl-mosaic 2>&1)
basic_rc_rc=$?
set -e
[[ "$basic_rc_rc" -ne 0 ]] || fail "failed Basic resolver output unexpectedly authorized a merge: $basic_rc_output"
[[ ! -e "$basic_rc_dir/merge-payload.json" ]] || fail "failed Basic resolver reached the merge API"
# HTTP 401 never changes principals: inspection rejection fails closed without
# resolving or attempting Basic Auth.
fallback_inspect_dir=$(make_case fallback-inspection)
set +e
fallback_inspect_output=$(MOSAIC_TEST_BASIC_AVAILABLE=true MOSAIC_TEST_FALLBACK_MODE=inspection \
run_case "$fallback_inspect_dir" verified --co-author-trailers --escalate-to tl-mosaic 2>&1)
fallback_inspect_rc=$?
set -e
[[ "$fallback_inspect_rc" -ne 0 ]] || fail "inspection token rejection unexpectedly changed principals"
[[ "$fallback_inspect_output" == *"refusing cross-principal credential fallback"* ]] || fail "inspection token rejection lost its refusal diagnostic"
[[ ! -e "$fallback_inspect_dir/basic-resolution.log" ]] || fail "inspection token rejection resolved Basic Auth"
[[ ! -e "$fallback_inspect_dir/merge-payload.json" ]] || fail "inspection token rejection reached merge mutation"
inspect_sequence=$(awk '{print $1 ":" $2}' "$fallback_inspect_dir/curl.log" | paste -sd, -)
[[ "$inspect_sequence" == "GET:token" ]] || fail "inspection rejection made unexpected provider calls (calls=$inspect_sequence)"
# Token rejection at merge likewise fails closed without cross-principal retry.
fallback_merge_dir=$(make_case fallback-merge)
set +e
fallback_merge_output=$(MOSAIC_TEST_BASIC_AVAILABLE=true MOSAIC_TEST_FALLBACK_MODE=merge \
run_case "$fallback_merge_dir" verified --co-author-trailers --escalate-to tl-mosaic 2>&1)
fallback_merge_rc=$?
set -e
[[ "$fallback_merge_rc" -ne 0 ]] || fail "merge token rejection unexpectedly changed principals"
[[ "$fallback_merge_output" == *"refusing cross-principal credential fallback"* ]] || fail "merge token rejection lost its refusal diagnostic"
[[ ! -e "$fallback_merge_dir/basic-resolution.log" ]] || fail "merge token rejection resolved Basic Auth"
[[ ! -e "$fallback_merge_dir/merge-payload.json" ]] || fail "merge token rejection recorded a successful payload"
merge_sequence=$(awk '{print $1 ":" $2}' "$fallback_merge_dir/curl.log" | paste -sd, -)
[[ "$merge_sequence" == "GET:token,GET:token,POST:token" ]] || fail "merge rejection made unexpected provider calls (calls=$merge_sequence)"
# BLOCK path: a commit email exists but author.login is null. It must name both
# facts, name the escalation principal, and never reach the merge endpoint.
null_dir=$(make_case null-login)
set +e
null_output=$(run_case "$null_dir" null-login --co-author-trailers --escalate-to tl-mosaic 2>&1)
null_rc=$?
set -e
[[ "$null_rc" -ne 0 ]] || fail "null-login author expected a non-zero BLOCK"
[[ "$null_output" == *"BLOCK"* ]] || fail "null-login author omitted BLOCK diagnostic"
[[ "$null_output" == *"author.login=NULL"* ]] || fail "null-login author omitted the null provider fact"
[[ "$null_output" == *"[email protected]"* ]] || fail "null-login author omitted the commit email fact"
[[ "$null_output" == *'\n\x1b[31m'* ]] || fail "null-login author diagnostic did not escape control characters"
[[ "$null_output" != *$'\033'* ]] || fail "null-login author diagnostic emitted a raw terminal escape"
[[ "$(printf '%s\n' "$null_output" | wc -l)" -eq 1 ]] || fail "null-login author diagnostic permitted newline injection"
[[ "$null_output" == *"tl-mosaic"* ]] || fail "null-login author omitted the named escalation principal"
[[ ! -e "$null_dir/merge-payload.json" ]] || fail "null-login BLOCK still reached the merge API"
# Every provider-derived field in alternate BLOCK diagnostics is log-safe too,
# including an invalid non-head SHA that contains control characters.
unsafe_dir=$(make_case unsafe-identity)
set +e
unsafe_output=$(run_case "$unsafe_dir" unsafe-identity --co-author-trailers --escalate-to tl-mosaic 2>&1)
unsafe_rc=$?
set -e
[[ "$unsafe_rc" -ne 0 ]] || fail "unsafe identity expected a non-zero BLOCK"
[[ "$unsafe_output" == *"unusable linked identity"* ]] || fail "unsafe identity omitted its BLOCK reason"
[[ "$unsafe_output" == *'\n\x1b[31m'* ]] || fail "unsafe identity SHA did not escape control characters"
[[ "$unsafe_output" != *$'\033'* ]] || fail "unsafe identity diagnostic emitted a raw terminal escape"
[[ "$(printf '%s\n' "$unsafe_output" | wc -l)" -eq 1 ]] || fail "unsafe identity diagnostic permitted newline injection"
[[ ! -e "$unsafe_dir/merge-payload.json" ]] || fail "unsafe identity BLOCK still reached the merge API"
# The provider PR title cannot add an unchecked trailer outside the constructed
# message field: multi-line and trailer-shaped titles block before mutation.
title_dir=$(make_case title-injection)
set +e
title_output=$(MOSAIC_TEST_TITLE_MODE=injection \
run_case "$title_dir" verified --co-author-trailers --escalate-to tl-mosaic 2>&1)
title_rc=$?
set -e
[[ "$title_rc" -ne 0 ]] || fail "title trailer injection unexpectedly passed"
[[ "$title_output" == *"not one printable, non-trailer line"* ]] || fail "title injection refusal lost its diagnostic"
[[ ! -e "$title_dir/merge-payload.json" ]] || fail "title injection reached the merge API"
# Provider failures remain diagnosable after their temporary response file is
# removed, but provider-controlled control characters stay log-safe.
error_dir=$(make_case provider-error)
set +e
error_output=$(MOSAIC_TEST_BASIC_AVAILABLE=true MOSAIC_TEST_FALLBACK_MODE=provider-error \
run_case "$error_dir" single 2>&1)
error_rc=$?
set -e
[[ "$error_rc" -ne 0 ]] || fail "provider error unexpectedly passed"
[[ "$error_output" == *"HTTP 409"* ]] || fail "provider error omitted the HTTP status"
[[ "$error_output" == *"branch policy rejected"* ]] || fail "provider error response was discarded"
[[ "$error_output" == *'\n\x1b[31m'* ]] || fail "provider error response did not escape control characters"
[[ "$error_output" != *$'\033'* ]] || fail "provider error response emitted a raw terminal escape"
[[ "$error_output" != *"Basic Auth fallback"* ]] || fail "provider error advertised removed Basic Auth fallback"
[[ ! -e "$error_dir/basic-resolution.log" ]] || fail "HTTP 409 policy denial incorrectly triggered Basic Auth fallback"
# Authorization denials likewise fail closed instead of changing principals.
forbidden_dir=$(make_case forbidden)
set +e
forbidden_output=$(MOSAIC_TEST_BASIC_AVAILABLE=true MOSAIC_TEST_FALLBACK_MODE=forbidden \
run_case "$forbidden_dir" single 2>&1)
forbidden_rc=$?
set -e
[[ "$forbidden_rc" -ne 0 ]] || fail "HTTP 403 authorization denial unexpectedly passed"
[[ "$forbidden_output" == *"HTTP 403"* ]] || fail "authorization denial omitted the HTTP status"
[[ "$forbidden_output" != *"Basic Auth fallback"* ]] || fail "authorization denial advertised removed Basic Auth fallback"
[[ ! -e "$forbidden_dir/basic-resolution.log" ]] || fail "HTTP 403 authorization denial incorrectly triggered Basic Auth fallback"
# The BLOCK destination cannot be generic or inferred after failure: opting in
# without a named principal is refused before any provider operation.
principal_dir=$(make_case missing-principal)
set +e
principal_output=$(run_case "$principal_dir" verified --co-author-trailers 2>&1)
principal_rc=$?
set -e
[[ "$principal_rc" -ne 0 ]] || fail "co-author mode without a named principal unexpectedly passed"
[[ "$principal_output" == *"requires --escalate-to with a named principal"* ]] || fail "missing-principal refusal lost its diagnostic"
[[ ! -e "$principal_dir/merge-payload.json" ]] || fail "missing-principal refusal reached the merge API"
# A trailing value-taking option receives a stable CLI diagnostic instead of a
# set -u unbound-variable crash.
value_dir=$(make_case missing-principal-value)
set +e
value_output=$(run_case "$value_dir" verified --co-author-trailers --escalate-to 2>&1)
value_rc=$?
set -e
[[ "$value_rc" -ne 0 ]] || fail "missing --escalate-to value unexpectedly passed"
[[ "$value_output" == *"--escalate-to requires one principal name"* ]] || fail "missing --escalate-to value lost its diagnostic"
[[ "$value_output" != *"unbound variable"* ]] || fail "missing --escalate-to value crashed under set -u"
[[ ! -e "$value_dir/merge-payload.json" ]] || fail "missing --escalate-to value reached the merge API"
# Negative control: ordinary single-author merge remains byte-for-byte payload
# compatible and hardcoded to squash, with no optional message fields.
single_dir=$(make_case single)
set +e
single_output=$(run_case "$single_dir" single 2>&1)
single_rc=$?
set -e
if [[ "$single_rc" -ne 0 ]]; then
fail "ordinary single-author merge expected rc=0, got rc=$single_rc: $single_output"
elif [[ ! -s "$single_dir/merge-payload.json" ]]; then
fail "ordinary single-author merge did not reach the API payload"
else
python3 - "$single_dir/merge-payload.json" <<'PY' || fail "ordinary single-author payload changed"
import json
import sys
payload = json.load(open(sys.argv[1], encoding="utf-8"))
assert payload == {
"Do": "squash",
"head_commit_id": "1111111111111111111111111111111111111111",
}, payload
PY
fi
[[ -e "$single_dir/auth-via-config" ]] || fail "ordinary path did not authenticate curl through stdin config"
[[ ! -e "$single_dir/token-in-argv" ]] || fail "ordinary path placed the Gitea token in curl argv"
[[ "$(wc -l < "$single_dir/token-resolution.log")" -eq 1 ]] || fail "ordinary path did not use exactly one credential resolution"
# Squash is not defaultable: an explicit non-squash method must remain refused.
method_dir=$(make_case method-refusal)
set +e
method_output=$(run_case "$method_dir" single -m merge 2>&1)
method_rc=$?
set -e
[[ "$method_rc" -ne 0 ]] || fail "non-squash method unexpectedly passed"
[[ "$method_output" == *"enforces squash merge only"* ]] || fail "non-squash refusal lost its policy diagnostic"
[[ ! -e "$method_dir/merge-payload.json" ]] || fail "non-squash refusal reached the merge API"
if [[ "$failures" -ne 0 ]]; then
echo "pr-merge message-field regression failed ($failures assertions)" >&2
exit 1
fi
echo "pr-merge message-field regression passed (verified, BLOCK, and unchanged squash control)"
@@ -62,7 +62,14 @@ EXPECTED_ACTIVATION_CAPABILITY: Final[ActivationCapability] = {
# capability as compact JSON.
LEASE_CAPABILITY_PROBE_COMMAND: Final = "__lease-capability"
PROBE_TIMEOUT_SECONDS: Final = 2.0
# Budget for the out-of-process `mosaic __lease-capability` probe. The CLI
# is a Node program whose cold start alone measures 2.2-2.3s on a mid-range
# workstation (sb-it-1-dt, 2026-08-13), so a 2s budget made every launch on
# such hosts fail closed with the #869 skew message even though the
# capability matched. The timeout only bounds the pathological hang case —
# the happy path returns as soon as the probe exits — so a generous budget
# costs nothing on healthy hosts.
PROBE_TIMEOUT_SECONDS: Final = 10.0
# Override hook: a full shell-style command line (parsed with `shlex.split`)
# to run INSTEAD of resolving `mosaic` on PATH and appending the probe
@@ -88,7 +95,13 @@ def _resolve_probe_command(environ: Mapping[str, str]) -> list[str] | None:
if override:
parsed = shlex.split(override)
return parsed or None
resolved = shutil.which("mosaic")
# Resolve against the PROVIDED environment's PATH, not the ambient
# os.environ. Before this, a test passing a hermetic environ still
# resolved (and spawned) the host's real `mosaic` — masked only on hosts
# where the real probe happened to exceed the old 2s timeout. No PATH in
# the provided environment means nothing is resolvable (fail-closed),
# matching the probe's overall contract.
resolved = shutil.which("mosaic", path=environ.get("PATH", ""))
if resolved is None:
return None
return [resolved, LEASE_CAPABILITY_PROBE_COMMAND]
@@ -39,7 +39,7 @@ MAX_FRAME: Final = 64 * 1024
MAX_STATE: Final = 4 * 1024 * 1024
MAX_PENDING_TOKENS: Final = 256
MAX_IN_FLIGHT_CONNECTIONS: Final = 16
MAX_LEASE_TTL_SECONDS: Final = 300
MAX_LEASE_TTL_SECONDS: Final = 3600
STATE_VERSION: Final = 1
READ_DEADLINE_SECONDS: Final = 1.0
HANDLE_QUEUE_TIMEOUT_SECONDS: Final = 1.0
@@ -50,8 +50,8 @@ LEASE_PENDING: Final = "PENDING_VERIFICATION"
LEASE_PENDING_PROMOTION: Final = "PENDING_PROMOTION"
LEASE_VERIFIED: Final = "VERIFIED"
READ_ONLY_TOOLS: Final = {
"claude": frozenset({"Read", "Grep", "Glob", "Ls", "Find"}),
"pi": frozenset({"read", "grep", "find", "ls"}),
"claude": frozenset({"Read", "Grep", "Glob"}),
"pi": frozenset({"read", "ls"}),
}
RECOVERY_TOOL: Final = "mosaic_context_recover"
@@ -8,7 +8,9 @@ import json
import os
import socket
import sys
import time
from collections.abc import Callable, Mapping, Sequence
from datetime import datetime, timezone
from pathlib import Path
from typing import Final
@@ -53,6 +55,48 @@ def broker_request(socket_path: Path, request: dict[str, object]) -> dict[str, o
return value
def _self_starttime() -> str | None:
"""Field 22 of our own /proc stat — the anchor starttime the broker records.
Read past the comm field's parens, since a process name may contain them.
"""
try:
raw = Path(f"/proc/{os.getpid()}/stat").read_text()
return raw.rsplit(")", 1)[1].split()[19]
except (OSError, IndexError, ValueError):
return None
def _append_launch_record(environ: Mapping[str, str], record: dict[str, object]) -> None:
"""Append one NDJSON event to the #797 Runtime Session Ledger.
`fleet/run/sessions/` is operator-classified in framework-manifest.txt and is
already covered by test-upgrade-manifest-guard.sh, so an upgrade can neither
overwrite nor prune it. Files 0600 under a 0700 dir, matching what that guard
asserts.
Never raises: a launch must not be denied over bookkeeping. But it also never
fails silently — a missing record is exactly the kind of gap that made the
2026-08-06 MUTATOR_UNVERIFIED investigation cost a day.
"""
try:
mosaic_home = environ.get("MOSAIC_HOME") or str(Path.home() / ".config" / "mosaic")
directory = Path(mosaic_home) / "fleet" / "run" / "sessions"
directory.mkdir(parents=True, exist_ok=True)
os.chmod(directory, 0o700)
framed = {
"seq": time.time_ns() // 1_000_000,
"ts": datetime.now(timezone.utc).isoformat(),
**record,
}
path = directory / "events.ndjson"
descriptor = os.open(path, os.O_WRONLY | os.O_CREAT | os.O_APPEND, 0o600)
with os.fdopen(descriptor, "w") as handle:
handle.write(json.dumps(framed, separators=(",", ":")) + "\n")
except (OSError, ValueError, TypeError) as error:
print(f"[mosaic] WARNING: launch record not written: {error}", file=sys.stderr)
def main(
argv: Sequence[str] | None = None,
*,
@@ -94,8 +138,9 @@ def main(
# silent pass and never folded into the generic registration-failure
# branch.
try:
activation_capability = probe_activation_capability(source_environment)
assert_activation_capability_matches(
probe_activation_capability(source_environment),
activation_capability,
expected_activation_capability,
)
except VersionCouplingError as version_error:
@@ -128,6 +173,32 @@ def main(
print("Mosaic lease broker registration failed; runtime launch denied.", file=sys.stderr)
return 1
# Immutable launch record, half two. `mosaic` wrote `session.launch` with the
# config/provenance it knows; only this process knows the broker session id
# and the activation capability it just asserted. os.execvpe preserves the
# PID, so this PID is BOTH the anchor pid and the join key back to that
# record. Never fatal — bookkeeping must not deny a launch — but never
# silent either.
_append_launch_record(
source_environment,
{
"kind": "lease.register",
# Joins back to `mosaic`'s session.launch record. NOT pid: execRuntime()
# spawns rather than execs, so this process is a CHILD of mosaic with a
# different pid. This pid IS the broker anchor pid (os.execvpe below
# preserves it), which is a separate and still-useful fact.
"launch_id": source_environment.get("MOSAIC_LAUNCH_ID"),
"pid": os.getpid(),
"runtime": arguments.runtime,
"session_id": session_id,
"runtime_generation": generation,
"generation_file": str(generation_file),
"anchor_starttime": _self_starttime(),
"activation_capability": activation_capability,
"command": Path(command[0]).name,
},
)
environment = dict(source_environment)
environment["MOSAIC_LEASE_SESSION_ID"] = session_id
environment["MOSAIC_RUNTIME_GENERATION"] = str(generation)
@@ -0,0 +1,337 @@
#!/usr/bin/env python3
"""Lease promotion client — the half the enforcement toolkit never shipped.
The enforcement half (``daemon.py`` + ``mutator-gate.py``) ships and denies. The
promotion half has no production caller anywhere in the package: as of 0.0.48,
0.0.49 and 0.0.50-next.2207, ``begin_verification`` / ``observe_receipt`` /
``promote_lease`` are invoked only by ``broker-test-client.ts``, the acceptance
spec, unit tests, and two probes under ``docs/``. Consequence: **no lease on any
host can reach VERIFIED**, so every mutator is denied ``MUTATOR_UNVERIFIED`` by a
gate nothing can satisfy.
THE PROTOCOL (``daemon.py:578-754``)
------------------------------------
1. ``begin_verification`` — broker revokes, mints a challenge, and returns the
exact ``receipt`` text the MODEL must emit
2. *the model emits that text verbatim as its ENTIRE latest message*
3. the runtime adapter ships that message to the daemon-owned observer socket
4. ``observe_receipt`` -> ``PENDING_PROMOTION``
5. ``promote_lease`` -> ``VERIFIED``
THIS MODULE IMPLEMENTS 1, 4 AND 5 — NEVER 2
-------------------------------------------
Step 2 is the security property, not a formality. ``is_verbatim_receipt`` uses
``hmac.compare_digest`` against the exact minted string — explicitly "not a
transcript substring" (``receipt_challenge.py``). Promotion therefore requires a
live model that received the challenge in its context and echoed it exactly.
``receipt-observer-client.py`` will post ANY string as the latest assistant
message. A promotion client that posted its own receipt would satisfy the broker
while proving nothing — a gate-disabler indistinguishable from a working fix
unless someone looks for it. **This module never posts a receipt.** Emitting it
belongs to the runtime adapter, where a real model turn happens.
The construction binds the exact normative source bytes. ``h_source`` /
``h_payload`` are derived by the framework's own
``normative_fragments.build_payload`` rather than reimplemented: the broker
derives them the same way and any divergence yields ``PAYLOAD_BINDING_MISMATCH``.
There must be exactly one implementation.
WHAT THE BINDING DOES *NOT* PROVE
---------------------------------
It is tempting to read a VERIFIED lease as "this agent is running THIS law".
**It does not mean that**, and writing it down that way is how the belief spread.
The broker holds no reference copy of any normative source and never opens one;
it recomputes ``h_source`` / ``h_payload`` from the fragment bytes THIS CLIENT
sent and compares them to the binding THIS CLIENT sent (``daemon.py:602-616``).
Both sides of that comparison originate here, so it detects corruption in
transit and nothing else. What the binding actually asserts is "the client
claims these bytes, self-consistently".
Making it mean the stronger thing requires the broker to re-read the on-disk
sources itself, against a manifest the agent cannot rewrite — i.e. broker code
attestation under its own uid. Until then, do not cite a VERIFIED lease as
evidence of law integrity.
Usage
-----
lease_promote.py --begin # prints the receipt the MODEL must emit
lease_promote.py --complete <challenge> # after the adapter observed it
"""
from __future__ import annotations
import argparse
import base64
import hashlib
import json
import os
import socket
import sys
from pathlib import Path
from typing import Final
# Isolated (`python -I`) adapter invocations must still import co-located
# framework modules; never depend on the caller's PYTHONPATH.
_MODULE_DIRECTORY = str(Path(__file__).resolve().parent)
if _MODULE_DIRECTORY not in sys.path:
sys.path.insert(0, _MODULE_DIRECTORY)
from normative_fragments import NormativeFragment, build_payload # noqa: E402
MAX_FRAME: Final = 64 * 1024
BROKER_TIMEOUT_SECONDS: Final = 3.0
SCHEMA_VERSION: Final = 1
MANIFEST_VERSION: Final = 1
GENERATOR_VERSION: Final = "mosaic/lease_promote@1"
DEFAULT_TTL_SECONDS: Final = 3600
# Normative sources whose exact bytes bind the lease, in binding order. Order is
# load-bearing: ``h_source`` frames the resolved sequence, so reordering changes
# the derivation. Never fabricate a source that is not on disk.
FRAGMENT_SOURCES: Final = (
"CONSTITUTION.md",
"AGENTS.md",
"SOUL.md",
"USER.md",
"STANDARDS.md",
"TOOLS.md",
)
# Framework-owned sources, reconciled on every upgrade — `install.sh:76`
# FRAMEWORK_OWNED and `config/file-adapter.ts` FRAMEWORK_OWNED_FILES — plus the
# per-runtime contract shipped under `framework/runtime/<runtime>/`. A deployment
# missing one of these is broken, not minimal, so their absence is refused rather
# than silently dropped from the binding.
#
# SOUL.md and USER.md are deliberately excluded: install.sh does not seed them
# ("intentionally NOT seeded here — they are generated by `mosaic init`"), so a
# fresh install legitimately lacks both. TOOLS.md is user-seeded on first install
# only. Absence of those three is reported, not fatal.
REQUIRED_SOURCES: Final = frozenset({"CONSTITUTION.md", "AGENTS.md", "STANDARDS.md"})
class IncompleteBinding(RuntimeError):
"""A source that must bind this lease could not be read.
**Never downgrade this to a skip.** The broker recomputes the hashes from the
fragments it is sent, so an omitted fragment is internally consistent and
``PAYLOAD_BINDING_MISMATCH`` cannot fire — a partial law promotes exactly like
a complete one, and nothing downstream can tell the difference. Dropping an
unreadable source therefore does not degrade the binding, it forges a smaller
one. Fail here, where the omission is still visible.
"""
def mosaic_home() -> Path:
return Path(os.environ.get("MOSAIC_HOME") or Path.home() / ".config" / "mosaic")
def broker_socket() -> Path:
value = os.environ.get("MOSAIC_LEASE_BROKER_SOCKET")
if value:
return Path(value)
runtime_dir = os.environ.get("XDG_RUNTIME_DIR")
if runtime_dir:
return Path(runtime_dir) / "mosaic-lease" / "broker.sock"
return Path(f"/run/user/{os.getuid()}/mosaic-lease/broker.sock")
def session_identity() -> tuple[str, int, str]:
"""Session id, CURRENT generation, runtime.
The generation file wins over the env var, matching ``lease_generation.py``.
Sending a generation HIGHER than the broker's would revoke this session's own
authority (``daemon.py:342-344``), so this never guesses.
"""
session_id = os.environ["MOSAIC_LEASE_SESSION_ID"]
runtime = os.environ["MOSAIC_LEASE_RUNTIME"]
state_file = os.environ.get("MOSAIC_LEASE_GENERATION_FILE")
if state_file:
try:
return session_id, int(Path(state_file).read_text().strip()), runtime
except (OSError, ValueError):
pass
return session_id, int(os.environ["MOSAIC_RUNTIME_GENERATION"]), runtime
def build_construction(runtime: str) -> tuple[dict[str, object], object]:
"""Assemble the wire construction and derive its hashes with the sole builder."""
runtime_contract = f"runtime/{runtime}/RUNTIME.md"
sources = list(FRAGMENT_SOURCES) + [runtime_contract]
required = REQUIRED_SOURCES | {runtime_contract}
wire_fragments: list[dict[str, str]] = []
objects: list[NormativeFragment] = []
absent: list[str] = []
for source_id in sources:
try:
content = (mosaic_home() / source_id).read_bytes()
except FileNotFoundError:
# Genuinely not on disk. Legitimate only for operator-owned sources.
if source_id in required:
raise IncompleteBinding(
f"required normative source is absent: {source_id}"
) from None
absent.append(source_id)
continue
except OSError as exc:
# The path resolves but will not read — EACCES, EIO, EISDIR, ELOOP.
# That is an anomaly for EVERY source, optional ones included: an
# unreadable file is not an un-configured one, and treating it as
# absent is what lets a permission change quietly shrink the law.
raise IncompleteBinding(
f"normative source is present but unreadable: {source_id} "
f"({type(exc).__name__})"
) from exc
digest = hashlib.sha256(content).hexdigest()
wire_fragments.append(
{
"source_id": source_id,
"content_base64": base64.b64encode(content).decode("ascii"),
"expected_sha256": digest,
}
)
objects.append(NormativeFragment(source_id, content, digest))
if not wire_fragments:
raise IncompleteBinding("no normative sources found — refusing an empty binding")
# Absence is legitimate here but never invisible. The omission is already
# baked into h_source (the framed source sequence differs), but nothing
# compares h_source to an expected value, so this line is the only place a
# human learns the binding was narrower than the full set.
if absent:
print(
f"lease_promote: binding omits absent operator sources: {', '.join(absent)}",
file=sys.stderr,
)
result = build_payload(
manifest_version=MANIFEST_VERSION,
generator_version=GENERATOR_VERSION,
fragments=objects,
)
if result.injectionDecision != "ACCEPTED" or not result.promotion:
raise RuntimeError(f"construction refused locally: {result.source_reason}")
return (
{
"manifest_version": MANIFEST_VERSION,
"generator_version": GENERATOR_VERSION,
"fragments": wire_fragments,
},
result,
)
def broker_request(payload: dict[str, object]) -> dict[str, object]:
raw = (json.dumps(payload, separators=(",", ":")) + "\n").encode()
if len(raw) > MAX_FRAME:
raise ValueError(
f"request too large ({len(raw)} bytes); broker frame cap is {MAX_FRAME}"
)
response = bytearray()
with socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) as connection:
connection.settimeout(BROKER_TIMEOUT_SECONDS)
connection.connect(str(broker_socket()))
connection.sendall(raw)
connection.shutdown(socket.SHUT_WR)
while len(response) <= MAX_FRAME:
chunk = connection.recv(4096)
if not chunk:
break
response.extend(chunk)
if len(response) > MAX_FRAME or not response.endswith(b"\n"):
raise ValueError("invalid broker reply")
value = json.loads(response)
if not isinstance(value, dict):
raise ValueError("invalid broker reply")
return value
def begin(
ttl_seconds: int = DEFAULT_TTL_SECONDS,
compaction_epoch: int = 0,
request_epoch: int = 0,
) -> dict[str, object]:
"""Step 1. Returns the broker reply, including the exact ``receipt`` text."""
session_id, generation, runtime = session_identity()
construction, derived = build_construction(runtime)
return broker_request(
{
"action": "begin_verification",
"session_id": session_id,
"runtime_generation": generation,
"runtime": runtime,
"ttl_seconds": ttl_seconds,
"binding": {
"compaction_epoch": compaction_epoch,
"request_epoch": request_epoch,
"h_source": derived.h_source,
"h_payload": derived.h_payload,
"schema_version": SCHEMA_VERSION,
},
"construction": construction,
}
)
def complete(challenge: str) -> dict[str, object]:
"""Steps 4-5. Assumes the model already emitted the receipt and the adapter
shipped it to the observer socket."""
session_id, generation, _ = session_identity()
observed = broker_request(
{
"action": "observe_receipt",
"session_id": session_id,
"runtime_generation": generation,
"receipt_challenge": challenge,
}
)
if observed.get("ok") is not True or observed.get("state") != "PENDING_PROMOTION":
return {"stage": "observe_receipt", **observed}
promoted = broker_request(
{
"action": "promote_lease",
"session_id": session_id,
"runtime_generation": generation,
"receipt_challenge": challenge,
}
)
return {"stage": "promote_lease", **promoted}
def main(argv: list[str] | None = None) -> int:
parser = argparse.ArgumentParser(description="Mosaic lease promotion client.")
group = parser.add_mutually_exclusive_group(required=True)
group.add_argument(
"--begin",
action="store_true",
help="mint a challenge; prints the receipt the MODEL must emit verbatim",
)
group.add_argument(
"--complete",
metavar="CHALLENGE",
help="observe the emitted receipt and promote the lease",
)
parser.add_argument("--ttl-seconds", type=int, default=DEFAULT_TTL_SECONDS)
arguments = parser.parse_args(argv)
try:
if arguments.begin:
print(json.dumps(begin(ttl_seconds=arguments.ttl_seconds), indent=2))
else:
print(json.dumps(complete(arguments.complete), indent=2))
except KeyError as exc:
print(f"missing lease environment: {exc}; not a lease-gated session", file=sys.stderr)
return 2
except (OSError, ValueError, RuntimeError, json.JSONDecodeError) as exc:
print(f"{type(exc).__name__}: {exc}", file=sys.stderr)
return 2
return 0
if __name__ == "__main__":
raise SystemExit(main())
@@ -0,0 +1,399 @@
#!/usr/bin/env python3
"""Claude UserPromptSubmit hook for operator-triggered lease promotion."""
from __future__ import annotations
import fcntl
import importlib.util
import json
import os
import secrets
import stat
import subprocess
import sys
import time
from collections.abc import Callable, Mapping
from pathlib import Path
from typing import Final, TextIO
_MODULE_DIRECTORY = str(Path(__file__).resolve().parent)
if _MODULE_DIRECTORY not in sys.path:
sys.path.insert(0, _MODULE_DIRECTORY)
from receipt_challenge import receipt_for # noqa: E402
_observer_spec = importlib.util.spec_from_file_location(
"mosaic_receipt_observer_client", Path(__file__).resolve().with_name("receipt-observer-client.py")
)
if _observer_spec is None or _observer_spec.loader is None:
raise RuntimeError("unable to load receipt observer client")
_observer_module = importlib.util.module_from_spec(_observer_spec)
_observer_spec.loader.exec_module(_observer_module)
observer_request = _observer_module.observer_request
MAX_FRAME: Final = 64 * 1024
PENDING_MAX_AGE_SECONDS: Final = 60 * 60
PROMOTER_TIMEOUT_SECONDS: Final = 10.0
PROMOTION_PROMPT: Final = "/mosaic-promote"
PROMOTER: Final = Path(__file__).resolve().with_name("lease_promote.py")
PENDING_DIRECTORY: Final = "mosaic-lease"
AUTHORIZATION_DIRECTORY: Final = "authorizations"
AUTHORIZATION_TTL_SECONDS: Final = 60
LEASE_TTL_SECONDS: Final = 60 * 60
LOCK_FILE: Final = "promotion.lock"
RESULT_FILE: Final = "last-result.json"
EXPECTED_BEGIN_KEYS: Final = frozenset(
{"ok", "state", "receipt_challenge", "receipt", "binding"}
)
EXPECTED_BINDING_KEYS: Final = frozenset(
{
"compaction_epoch",
"request_epoch",
"h_source",
"h_payload",
"runtime_generation",
"schema_version",
}
)
class PromotionAlreadyInProgress(RuntimeError):
pass
def reject_duplicate_json_keys(pairs: list[tuple[str, object]]) -> dict[str, object]:
value: dict[str, object] = {}
for key, item in pairs:
if key in value:
raise ValueError("duplicate promoter JSON key")
value[key] = item
return value
def read_hook_input(stream: object) -> dict[str, object]:
raw = getattr(stream, "buffer", stream).read(MAX_FRAME + 1)
if not isinstance(raw, bytes) or len(raw) > MAX_FRAME:
raise ValueError("invalid UserPromptSubmit input")
value = json.loads(raw, object_pairs_hook=reject_duplicate_json_keys)
if not isinstance(value, dict):
raise ValueError("invalid UserPromptSubmit input")
return value
def emit_context(stream: TextIO, message: str) -> None:
json.dump(
{
"hookSpecificOutput": {
"hookEventName": "UserPromptSubmit",
"additionalContext": message,
}
},
stream,
separators=(",", ":"),
)
stream.write("\n")
def session_pending_name(environ: Mapping[str, str]) -> tuple[Path, str]:
runtime_dir = Path(environ["XDG_RUNTIME_DIR"])
session_id = environ["MOSAIC_LEASE_SESSION_ID"]
if not runtime_dir.is_absolute():
raise ValueError("XDG_RUNTIME_DIR must be absolute")
if len(session_id) != 64 or any(character not in "0123456789abcdef" for character in session_id):
raise ValueError("invalid lease session id")
return runtime_dir, f"pending-{session_id}"
def open_pending_directory(runtime_dir: Path) -> int:
directory_flags = (
os.O_RDONLY
| getattr(os, "O_CLOEXEC", 0)
| getattr(os, "O_DIRECTORY", 0)
| getattr(os, "O_NOFOLLOW", 0)
)
runtime_descriptor = os.open(runtime_dir, directory_flags)
try:
runtime_metadata = os.fstat(runtime_descriptor)
if (
not stat.S_ISDIR(runtime_metadata.st_mode)
or runtime_metadata.st_uid != os.getuid()
or stat.S_IMODE(runtime_metadata.st_mode) != 0o700
):
raise ValueError("unsafe XDG runtime directory")
try:
os.mkdir(PENDING_DIRECTORY, mode=0o700, dir_fd=runtime_descriptor)
except FileExistsError:
pass
descriptor = os.open(PENDING_DIRECTORY, directory_flags, dir_fd=runtime_descriptor)
finally:
os.close(runtime_descriptor)
metadata = os.fstat(descriptor)
if (
not stat.S_ISDIR(metadata.st_mode)
or metadata.st_uid != os.getuid()
or stat.S_IMODE(metadata.st_mode) != 0o700
):
os.close(descriptor)
raise ValueError("unsafe promotion pending directory")
return descriptor
def acquire_lock(directory_descriptor: int) -> int:
flags = (
os.O_RDWR
| os.O_CREAT
| getattr(os, "O_CLOEXEC", 0)
| getattr(os, "O_NOFOLLOW", 0)
)
descriptor = os.open(LOCK_FILE, flags, 0o600, dir_fd=directory_descriptor)
metadata = os.fstat(descriptor)
if (
not stat.S_ISREG(metadata.st_mode)
or metadata.st_uid != os.getuid()
or stat.S_IMODE(metadata.st_mode) != 0o600
):
os.close(descriptor)
raise ValueError("unsafe promotion lock file")
try:
fcntl.flock(descriptor, fcntl.LOCK_EX | fcntl.LOCK_NB)
except BlockingIOError as error:
os.close(descriptor)
raise PromotionAlreadyInProgress() from error
return descriptor
def sweep_stale_pending(directory_descriptor: int, current_time: float) -> None:
cutoff = current_time - PENDING_MAX_AGE_SECONDS
removed = False
with os.scandir(directory_descriptor) as entries:
for candidate in entries:
if not (
candidate.name.startswith("pending-")
or candidate.name.startswith(".pending-")
):
continue
try:
metadata = candidate.stat(follow_symlinks=False)
if metadata.st_mtime < cutoff and not stat.S_ISDIR(metadata.st_mode):
os.unlink(candidate.name, dir_fd=directory_descriptor)
removed = True
except FileNotFoundError:
continue
if removed:
os.fsync(directory_descriptor)
def consume_authorization(directory_descriptor: int, session_id: str, wall_clock: float) -> str | None:
flags = os.O_RDONLY | getattr(os, "O_CLOEXEC", 0) | getattr(os, "O_DIRECTORY", 0) | getattr(os, "O_NOFOLLOW", 0)
try:
authorization_descriptor = os.open(AUTHORIZATION_DIRECTORY, flags, dir_fd=directory_descriptor)
except FileNotFoundError:
return None
try:
metadata = os.fstat(authorization_descriptor)
if not stat.S_ISDIR(metadata.st_mode) or metadata.st_uid != os.getuid() or stat.S_IMODE(metadata.st_mode) != 0o700:
raise ValueError("unsafe promotion authorization directory")
name = f"{session_id}.auth"
try:
descriptor = os.open(name, os.O_RDONLY | getattr(os, "O_CLOEXEC", 0) | getattr(os, "O_NOFOLLOW", 0), dir_fd=authorization_descriptor)
except FileNotFoundError:
return None
try:
token_metadata = os.fstat(descriptor)
if not stat.S_ISREG(token_metadata.st_mode) or token_metadata.st_uid != os.getuid() or stat.S_IMODE(token_metadata.st_mode) != 0o600 or token_metadata.st_size <= 0 or token_metadata.st_size > MAX_FRAME:
raise ValueError("unsafe promotion authorization")
raw = os.read(descriptor, MAX_FRAME + 1)
finally:
os.close(descriptor)
os.unlink(name, dir_fd=authorization_descriptor)
os.fsync(authorization_descriptor)
token = json.loads(raw, object_pairs_hook=reject_duplicate_json_keys)
if not isinstance(token, dict) or set(token) != {"nonce", "seat", "session_id", "expires_at", "ts"}:
return None
nonce = token.get("nonce")
expires_at = token.get("expires_at")
issued_at = token.get("ts")
if token.get("session_id") != session_id or not isinstance(token.get("seat"), str) or not isinstance(nonce, str) or len(nonce) != 64 or any(char not in "0123456789abcdef" for char in nonce) or type(expires_at) not in (int, float) or type(issued_at) not in (int, float) or expires_at <= wall_clock or expires_at > issued_at + AUTHORIZATION_TTL_SECONDS:
return None
return nonce
finally:
os.close(authorization_descriptor)
def write_result(directory_descriptor: int, attempt_id: str, verified: bool, reason: str | None, session_id: str, wall_clock: float) -> None:
temporary = f".{RESULT_FILE}.tmp-{secrets.token_hex(8)}"
descriptor = os.open(temporary, os.O_WRONLY | os.O_CREAT | os.O_EXCL | getattr(os, "O_CLOEXEC", 0) | getattr(os, "O_NOFOLLOW", 0), 0o600, dir_fd=directory_descriptor)
try:
os.fchmod(descriptor, 0o600)
with os.fdopen(descriptor, "w", encoding="utf-8", closefd=False) as stream:
json.dump({"attempt_id": attempt_id, "expires_at_wallclock": wall_clock + LEASE_TTL_SECONDS if verified else None, "reason": reason, "session_id": session_id, "ts": wall_clock, "verified": verified}, stream, separators=(",", ":"), sort_keys=True)
stream.flush(); os.fsync(stream.fileno())
os.replace(temporary, RESULT_FILE, src_dir_fd=directory_descriptor, dst_dir_fd=directory_descriptor)
os.fsync(directory_descriptor)
finally:
os.close(descriptor)
def write_pending(directory_descriptor: int, name: str, challenge: str) -> None:
temporary = f".{name}.tmp-{secrets.token_hex(8)}"
flags = (
os.O_WRONLY
| os.O_CREAT
| os.O_EXCL
| getattr(os, "O_CLOEXEC", 0)
| getattr(os, "O_NOFOLLOW", 0)
)
descriptor = os.open(temporary, flags, 0o600, dir_fd=directory_descriptor)
try:
os.fchmod(descriptor, 0o600)
with os.fdopen(descriptor, "w", encoding="utf-8", closefd=False) as stream:
stream.write(challenge)
stream.flush()
os.fsync(stream.fileno())
os.replace(
temporary,
name,
src_dir_fd=directory_descriptor,
dst_dir_fd=directory_descriptor,
)
os.fsync(directory_descriptor)
except Exception:
try:
os.unlink(temporary, dir_fd=directory_descriptor)
except FileNotFoundError:
pass
raise
finally:
os.close(descriptor)
def parse_begin_reply(
completed: subprocess.CompletedProcess[str],
) -> tuple[str, dict[str, object] | None]:
if completed.returncode != 0:
return f"PROMOTER_EXIT_{completed.returncode}", None
try:
value = json.loads(
completed.stdout,
object_pairs_hook=reject_duplicate_json_keys,
)
except (json.JSONDecodeError, RecursionError, TypeError, ValueError):
return "INVALID_PROMOTER_REPLY", None
if not isinstance(value, dict):
return "INVALID_PROMOTER_REPLY", None
if value.get("ok") is False and set(value) == {"ok", "code"}:
code = value.get("code")
return code if isinstance(code, str) and code else "PROMOTION_BEGIN_REFUSED", value
if set(value) != EXPECTED_BEGIN_KEYS or value.get("ok") is not True:
return "INVALID_PROMOTER_REPLY", None
if value.get("state") != "PENDING_VERIFICATION":
return "INVALID_PROMOTER_REPLY", None
challenge = value.get("receipt_challenge")
receipt = value.get("receipt")
binding = value.get("binding")
if (
not isinstance(challenge, str)
or len(challenge) != 64
or any(character not in "0123456789abcdef" for character in challenge)
or not isinstance(receipt, str)
or not isinstance(binding, dict)
or set(binding) != EXPECTED_BINDING_KEYS
):
return "INVALID_PROMOTER_REPLY", None
integer_fields = (
"compaction_epoch",
"request_epoch",
"runtime_generation",
"schema_version",
)
if any(type(binding.get(field)) is not int or binding[field] < 0 for field in integer_fields):
return "INVALID_PROMOTER_REPLY", None
if not all(
isinstance(binding.get(field), str)
and len(binding[field]) == 64
and all(character in "0123456789abcdef" for character in binding[field])
for field in ("h_source", "h_payload")
):
return "INVALID_PROMOTER_REPLY", None
if not secrets.compare_digest(
receipt.encode("utf-8"),
receipt_for(challenge, binding).encode("utf-8"),
):
return "INVALID_PROMOTER_REPLY", None
return "", value
def main(
*,
environ: Mapping[str, str] | None = None,
stdin: object | None = None,
stdout: TextIO | None = None,
stderr: TextIO | None = None,
run: Callable[..., subprocess.CompletedProcess[str]] = subprocess.run,
now: Callable[[], float] = time.time,
) -> int:
source_environment = os.environ if environ is None else environ
input_stream = sys.stdin if stdin is None else stdin
output_stream = sys.stdout if stdout is None else stdout
error_stream = sys.stderr if stderr is None else stderr
try:
hook_input = read_hook_input(input_stream)
except (OSError, RecursionError, ValueError, json.JSONDecodeError) as error:
print(f"Mosaic promotion trigger ignored invalid hook input: {error}", file=error_stream)
return 0
if hook_input.get("prompt") != PROMOTION_PROMPT:
return 0
directory_descriptor: int | None = None
lock_descriptor: int | None = None
try:
runtime_dir, pending_name = session_pending_name(source_environment)
session_id = source_environment["MOSAIC_LEASE_SESSION_ID"]
directory_descriptor = open_pending_directory(runtime_dir)
lock_descriptor = acquire_lock(directory_descriptor)
wall_clock = now()
nonce = consume_authorization(directory_descriptor, session_id, wall_clock)
if nonce is None:
write_result(directory_descriptor, "0" * 64, False, "NOT_AUTHORIZED", session_id, wall_clock)
print("Mosaic promotion denied: NOT_AUTHORIZED.", file=error_stream)
return 0
sweep_stale_pending(directory_descriptor, wall_clock)
completed = run([sys.executable, "-I", "-S", "-B", str(PROMOTER), "--begin"], check=False, capture_output=True, text=True, env=dict(source_environment), timeout=PROMOTER_TIMEOUT_SECONDS)
code, reply = parse_begin_reply(completed)
if code or reply is None:
write_result(directory_descriptor, nonce, False, code or "PROMOTION_BEGIN_FAILED", session_id, now())
return 0
challenge = str(reply["receipt_challenge"])
observation = observer_request(
Path(source_environment["MOSAIC_RECEIPT_OBSERVER_SOCKET"]),
{"action": "record_runtime_observation", "session_id": session_id, "runtime_generation": int(source_environment["MOSAIC_RUNTIME_GENERATION"]), "runtime": "claude", "latest_assistant_message": reply["receipt"]},
)
if set(observation) != {"ok"} or observation.get("ok") is not True:
write_result(directory_descriptor, challenge, False, "OBSERVATION_REJECTED", session_id, now())
return 0
completion = run([sys.executable, "-I", "-S", "-B", str(PROMOTER), "--complete", challenge], check=False, capture_output=True, text=True, env=dict(source_environment), timeout=PROMOTER_TIMEOUT_SECONDS)
try:
outcome = json.loads(completion.stdout, object_pairs_hook=reject_duplicate_json_keys)
except (json.JSONDecodeError, ValueError):
outcome = None
if completion.returncode == 0 and isinstance(outcome, dict) and outcome.get("stage") == "promote_lease" and outcome.get("ok") is True and outcome.get("state") == "VERIFIED":
write_result(directory_descriptor, challenge, True, None, session_id, now())
else:
reason = outcome.get("code") if isinstance(outcome, dict) and isinstance(outcome.get("code"), str) else "PROMOTION_INCOMPLETE"
write_result(directory_descriptor, challenge, False, reason, session_id, now())
except PromotionAlreadyInProgress:
print("Mosaic promotion denied: PROMOTION_ALREADY_IN_PROGRESS.", file=error_stream)
except (KeyError, OSError, RecursionError, ValueError, subprocess.SubprocessError) as error:
print(f"Mosaic promotion begin failed: {type(error).__name__}: {error}", file=error_stream)
finally:
if lock_descriptor is not None:
os.close(lock_descriptor)
if directory_descriptor is not None:
os.close(directory_descriptor)
return 0
if __name__ == "__main__":
raise SystemExit(main())
@@ -0,0 +1,361 @@
#!/usr/bin/env python3
"""Claude Stop hook that completes a pending operator-triggered promotion."""
from __future__ import annotations
import fcntl
import json
import os
import secrets
import stat
import subprocess
import sys
import time
from collections.abc import Callable, Mapping
from pathlib import Path
from typing import Final, NamedTuple, TextIO
MAX_FRAME: Final = 64 * 1024
PROMOTER_TIMEOUT_SECONDS: Final = 10.0
LEASE_TTL_SECONDS: Final = 60 * 60
PROMOTER: Final = Path(__file__).resolve().with_name("lease_promote.py")
PENDING_DIRECTORY: Final = "mosaic-lease"
LOCK_FILE: Final = "promotion.lock"
RESULT_FILE: Final = "last-result.json"
TERMINAL_FAILURE_CODES: Final = frozenset(
{
"RECEIPT_REPLAY",
"RECEIPT_MISMATCH",
"INVALID_LEASE_TRANSITION",
"PROMOTION_TOKEN_INVALID",
}
)
class PendingChallenge(NamedTuple):
value: str
device: int
inode: int
def reject_duplicate_json_keys(pairs: list[tuple[str, object]]) -> dict[str, object]:
value: dict[str, object] = {}
for key, item in pairs:
if key in value:
raise ValueError("duplicate promoter JSON key")
value[key] = item
return value
def session_pending_name(environ: Mapping[str, str]) -> tuple[Path, str]:
runtime_dir = Path(environ["XDG_RUNTIME_DIR"])
session_id = environ["MOSAIC_LEASE_SESSION_ID"]
if not runtime_dir.is_absolute():
raise ValueError("XDG_RUNTIME_DIR must be absolute")
if len(session_id) != 64 or any(character not in "0123456789abcdef" for character in session_id):
raise ValueError("invalid lease session id")
return runtime_dir, f"pending-{session_id}"
def open_pending_directory(runtime_dir: Path) -> int | None:
directory_flags = (
os.O_RDONLY
| getattr(os, "O_CLOEXEC", 0)
| getattr(os, "O_DIRECTORY", 0)
| getattr(os, "O_NOFOLLOW", 0)
)
try:
runtime_descriptor = os.open(runtime_dir, directory_flags)
except FileNotFoundError:
return None
try:
runtime_metadata = os.fstat(runtime_descriptor)
if (
not stat.S_ISDIR(runtime_metadata.st_mode)
or runtime_metadata.st_uid != os.getuid()
or stat.S_IMODE(runtime_metadata.st_mode) != 0o700
):
raise ValueError("unsafe XDG runtime directory")
try:
descriptor = os.open(PENDING_DIRECTORY, directory_flags, dir_fd=runtime_descriptor)
except FileNotFoundError:
return None
finally:
os.close(runtime_descriptor)
metadata = os.fstat(descriptor)
if (
not stat.S_ISDIR(metadata.st_mode)
or metadata.st_uid != os.getuid()
or stat.S_IMODE(metadata.st_mode) != 0o700
):
os.close(descriptor)
raise ValueError("unsafe promotion pending directory")
return descriptor
def acquire_lock(directory_descriptor: int) -> int:
flags = (
os.O_RDWR
| os.O_CREAT
| getattr(os, "O_CLOEXEC", 0)
| getattr(os, "O_NOFOLLOW", 0)
)
descriptor = os.open(LOCK_FILE, flags, 0o600, dir_fd=directory_descriptor)
metadata = os.fstat(descriptor)
if (
not stat.S_ISREG(metadata.st_mode)
or metadata.st_uid != os.getuid()
or stat.S_IMODE(metadata.st_mode) != 0o600
):
os.close(descriptor)
raise ValueError("unsafe promotion lock file")
try:
fcntl.flock(descriptor, fcntl.LOCK_EX | fcntl.LOCK_NB)
except BlockingIOError:
os.close(descriptor)
raise
return descriptor
def read_pending(directory_descriptor: int, name: str) -> PendingChallenge | None:
flags = os.O_RDONLY | getattr(os, "O_CLOEXEC", 0) | getattr(os, "O_NOFOLLOW", 0)
try:
descriptor = os.open(name, flags, dir_fd=directory_descriptor)
except FileNotFoundError:
return None
try:
metadata = os.fstat(descriptor)
if (
not stat.S_ISREG(metadata.st_mode)
or metadata.st_uid != os.getuid()
or stat.S_IMODE(metadata.st_mode) != 0o600
or metadata.st_size <= 0
or metadata.st_size > MAX_FRAME
):
raise ValueError("unsafe promotion pending file")
raw = os.read(descriptor, MAX_FRAME + 1)
finally:
os.close(descriptor)
if len(raw) > MAX_FRAME:
raise ValueError("oversized promotion challenge")
challenge = raw.decode("utf-8")
if (
len(challenge) != 64
or any(character not in "0123456789abcdef" for character in challenge)
):
raise ValueError("invalid promotion challenge")
return PendingChallenge(challenge, metadata.st_dev, metadata.st_ino)
def write_result(
directory_descriptor: int,
attempt_id: str,
verified: bool,
reason: str | None,
session_id: str,
wall_clock: float,
) -> None:
result = {
"attempt_id": attempt_id,
"expires_at_wallclock": wall_clock + LEASE_TTL_SECONDS if verified else None,
"reason": reason,
"session_id": session_id,
"ts": wall_clock,
"verified": verified,
}
temporary = f".{RESULT_FILE}.tmp-{secrets.token_hex(8)}"
flags = (
os.O_WRONLY
| os.O_CREAT
| os.O_EXCL
| getattr(os, "O_CLOEXEC", 0)
| getattr(os, "O_NOFOLLOW", 0)
)
descriptor = os.open(temporary, flags, 0o600, dir_fd=directory_descriptor)
try:
os.fchmod(descriptor, 0o600)
with os.fdopen(descriptor, "w", encoding="utf-8", closefd=False) as stream:
json.dump(result, stream, separators=(",", ":"), sort_keys=True)
stream.flush()
os.fsync(stream.fileno())
os.replace(
temporary,
RESULT_FILE,
src_dir_fd=directory_descriptor,
dst_dir_fd=directory_descriptor,
)
os.fsync(directory_descriptor)
except Exception:
try:
os.unlink(temporary, dir_fd=directory_descriptor)
except FileNotFoundError:
pass
raise
finally:
os.close(descriptor)
def delete_pending_if_unchanged(
directory_descriptor: int,
name: str,
pending: PendingChallenge,
error_stream: TextIO,
) -> None:
quarantine = f".{name}.delete-{secrets.token_hex(8)}"
try:
os.rename(
name,
quarantine,
src_dir_fd=directory_descriptor,
dst_dir_fd=directory_descriptor,
)
except FileNotFoundError:
return
except OSError as error:
print(f"Mosaic promotion could not quarantine pending file: {error}", file=error_stream)
return
try:
moved = os.stat(
quarantine,
dir_fd=directory_descriptor,
follow_symlinks=False,
)
if (moved.st_dev, moved.st_ino) == (pending.device, pending.inode):
os.unlink(quarantine, dir_fd=directory_descriptor)
os.fsync(directory_descriptor)
return
print("Mosaic promotion pending file changed; preserving replacement.", file=error_stream)
try:
os.link(
quarantine,
name,
src_dir_fd=directory_descriptor,
dst_dir_fd=directory_descriptor,
follow_symlinks=False,
)
except FileExistsError:
print(
f"Mosaic promotion preserved replacement as {quarantine}.",
file=error_stream,
)
else:
os.unlink(quarantine, dir_fd=directory_descriptor)
os.fsync(directory_descriptor)
except OSError as error:
print(f"Mosaic promotion could not resolve pending file: {error}", file=error_stream)
def parse_reply(completed: subprocess.CompletedProcess[str]) -> dict[str, object] | None:
if completed.returncode != 0:
return None
try:
value = json.loads(
completed.stdout,
object_pairs_hook=reject_duplicate_json_keys,
)
except (json.JSONDecodeError, RecursionError, TypeError, ValueError):
return None
if not isinstance(value, dict):
return None
if set(value) == {"stage", "ok", "state"}:
if (
value.get("stage") == "promote_lease"
and value.get("ok") is True
and value.get("state") == "VERIFIED"
):
return value
return None
if set(value) == {"stage", "ok", "code"}:
if (
value.get("stage") in {"observe_receipt", "promote_lease"}
and value.get("ok") is False
and isinstance(value.get("code"), str)
and value.get("code")
):
return value
return None
def main(
*,
environ: Mapping[str, str] | None = None,
stderr: TextIO | None = None,
run: Callable[..., subprocess.CompletedProcess[str]] = subprocess.run,
now: Callable[[], float] = time.time,
) -> int:
source_environment = os.environ if environ is None else environ
error_stream = sys.stderr if stderr is None else stderr
directory_descriptor: int | None = None
lock_descriptor: int | None = None
try:
runtime_dir, pending_name = session_pending_name(source_environment)
session_id = source_environment["MOSAIC_LEASE_SESSION_ID"]
directory_descriptor = open_pending_directory(runtime_dir)
if directory_descriptor is None:
return 0
try:
lock_descriptor = acquire_lock(directory_descriptor)
except (BlockingIOError, FileNotFoundError):
print("Mosaic promotion completion deferred: promotion is in progress.", file=error_stream)
return 0
pending = read_pending(directory_descriptor, pending_name)
if pending is None:
return 0
completed = run(
[
sys.executable,
"-I",
"-S",
"-B",
str(PROMOTER),
"--complete",
pending.value,
],
check=False,
capture_output=True,
text=True,
env=dict(source_environment),
timeout=PROMOTER_TIMEOUT_SECONDS,
)
reply = parse_reply(completed)
if reply is not None and reply.get("ok") is True:
write_result(directory_descriptor, pending.value, True, None, session_id, now())
delete_pending_if_unchanged(
directory_descriptor,
pending_name,
pending,
error_stream,
)
print("Mosaic lease promotion completed.", file=error_stream)
return 0
if reply is not None:
code = str(reply["code"])
print(f"Mosaic promotion incomplete: {code}.", file=error_stream)
if code in TERMINAL_FAILURE_CODES:
write_result(directory_descriptor, pending.value, False, code, session_id, now())
delete_pending_if_unchanged(
directory_descriptor,
pending_name,
pending,
error_stream,
)
else:
diagnostic = completed.stderr.strip() or f"promoter exit {completed.returncode}"
print(f"Mosaic promotion retryable failure: {diagnostic}.", file=error_stream)
except (KeyError, OSError, RecursionError, UnicodeError, ValueError, subprocess.SubprocessError) as error:
print(f"Mosaic promotion completion deferred: {type(error).__name__}: {error}", file=error_stream)
finally:
if lock_descriptor is not None:
os.close(lock_descriptor)
if directory_descriptor is not None:
os.close(directory_descriptor)
return 0
if __name__ == "__main__":
raise SystemExit(main())
@@ -22,13 +22,23 @@ from typing import Final
MAX_FRAME: Final = 64 * 1024
BROKER_TIMEOUT_SECONDS: Final = 1.5
MAX_TRANSCRIPT_BYTES: Final = 4 * 1024 * 1024
BENIGN_OBSERVATION_UNAVAILABLE_CODE: Final = "OBSERVATION_UNAVAILABLE"
def reject_duplicate_json_keys(pairs: list[tuple[str, object]]) -> dict[str, object]:
value: dict[str, object] = {}
for key, item in pairs:
if key in value:
raise ValueError("duplicate observer JSON key")
value[key] = item
return value
def read_json(stream: object) -> dict[str, object]:
raw = getattr(stream, "buffer", stream).read(MAX_FRAME + 1)
if not isinstance(raw, bytes) or len(raw) > MAX_FRAME:
raise ValueError("invalid observer input")
value = json.loads(raw)
value = json.loads(raw, object_pairs_hook=reject_duplicate_json_keys)
if not isinstance(value, dict):
raise ValueError("invalid observer input")
return value
@@ -100,9 +110,9 @@ def observer_request(socket_path: Path, request: dict[str, object]) -> dict[str,
if not chunk:
break
response.extend(chunk)
if len(response) > MAX_FRAME or not response.endswith(b"\n"):
if len(response) > MAX_FRAME or response.count(b"\n") != 1 or not response.endswith(b"\n"):
raise ValueError("invalid observer reply")
value = json.loads(response)
value = json.loads(response[:-1], object_pairs_hook=reject_duplicate_json_keys)
if not isinstance(value, dict):
raise ValueError("invalid observer reply")
return value
@@ -119,7 +129,12 @@ def main(argv: Sequence[str] | None = None, *, environ: Mapping[str, str] | None
if arguments.runtime == "claude":
if not arguments.latest_entry:
raise ValueError("Claude observer requires --latest-entry")
message = claude_latest_entry(source)
if "last_assistant_message" in source:
message = source["last_assistant_message"]
if not isinstance(message, str):
raise ValueError("invalid Claude observer input")
else:
message = claude_latest_entry(source)
else:
if arguments.latest_entry:
raise ValueError("Pi observer is message_end only")
@@ -133,10 +148,18 @@ def main(argv: Sequence[str] | None = None, *, environ: Mapping[str, str] | None
"runtime": arguments.runtime,
"latest_assistant_message": message,
})
except (KeyError, OSError, ValueError, json.JSONDecodeError) as error:
except (KeyError, OSError, RecursionError, ValueError, json.JSONDecodeError) as error:
print(f"Mosaic receipt observer refused: {error}", file=sys.stderr)
return 2
return 0 if reply == {"ok": True} else 2
if set(reply) == {"ok"} and reply.get("ok") is True:
return 0
if (
set(reply) == {"ok", "code"}
and reply.get("ok") is False
and reply.get("code") == BENIGN_OBSERVATION_UNAVAILABLE_CODE
):
return 0
return 2
if __name__ == "__main__":
@@ -33,7 +33,7 @@ def is_verbatim_receipt(message: str, challenge: str, binding: dict[str, object]
"""Require the exact one current-cycle receipt, not a transcript substring."""
expected = receipt_for(challenge, binding)
return hmac.compare_digest(message, expected)
return hmac.compare_digest(message.encode("utf-8"), expected.encode("utf-8"))
def latest_assistant_digest(message: str) -> str:
@@ -39,11 +39,12 @@ ORIG_PATH="$PATH"
# loop — which would make the control a false negative. A root dotfile is
# operator-owned (unknown→operator), so the sync loop skips it. Clean up on exit.
STRIPPED="$FW/.install-rollback-control.tmp.sh"
SIGNALED="$FW/.install-signal-control.tmp.sh"
NOEXIT="$FW/.install-noexit-control.tmp.sh"
D1CTRL="$FW/.install-d1guard-control.tmp.sh"
D2CTRL="$FW/.install-d2guard-control.tmp.sh"
rm -f "$STRIPPED" "$NOEXIT" "$D1CTRL" "$D2CTRL"
trap 'rm -f "$STRIPPED" "$NOEXIT" "$D1CTRL" "$D2CTRL"' EXIT
rm -f "$STRIPPED" "$SIGNALED" "$NOEXIT" "$D1CTRL" "$D2CTRL"
trap 'rm -f "$STRIPPED" "$SIGNALED" "$NOEXIT" "$D1CTRL" "$D2CTRL"' EXIT
pass=0; fail=0
chk() { if eval "$2"; then echo "$1"; pass=$((pass + 1)); else echo "$1"; fail=$((fail + 1)); fi; }
@@ -180,41 +181,86 @@ chk "[control] without -E the mid-sync corruption survives (no rollback)" \
# ── Part C: an INT/TERM interrupt must terminate, not resume (blocker-A) ──────
# A bash signal trap that merely returns lets the script continue past the
# interrupt — restoring the snapshot, then resuming the sync and reporting
# success. We inject a SIGTERM mid-sync with a cp that SUCCEEDS (so set -e never
# fires and ONLY the signal path governs), and assert the shipped installer
# restores AND exits without reporting success. The control strips `exit 1` from
# the trap and shows the buggy resume-to-success.
make_term_shim() {
local dir="$1"
cat > "$dir/cp" <<SHIM
#!/usr/bin/env bash
dest="\${@: -1}"
case "\$dest" in
*/$POISON_REL)
kill -TERM "\$PPID" 2>/dev/null # signal install.sh; the copy still succeeds
exec env PATH="$ORIG_PATH" cp "\$@" ;;
esac
exec env PATH="$ORIG_PATH" cp "\$@"
SHIM
chmod +x "$dir/cp"
# success. The earlier test used a child cp shim to signal its parent, making
# child completion race Bash's interrupted wait. Concurrency is not part of the
# guarded property: sync_framework_keep() runs in the installer's own Bash
# process, and `kill` is a builtin. Generate two installer fixtures that signal
# themselves at the same known mid-sync point. Their TERM handlers emit the same
# observable before diverging, so missing signal delivery fails BOTH arms rather
# than manufacturing a pass. The only semantic difference between fixtures is
# the explicit `exit 1` whose load-bearing behavior this control proves.
TERM_MARKER='[test-control] TERM handler entered'
HANDLER_WITH_EXIT="trap 'echo \"$TERM_MARKER\" >&2; restore_snapshot; exit 1' TERM # TEST-TERM-HANDLER"
HANDLER_WITHOUT_EXIT="trap 'echo \"$TERM_MARKER\" >&2; restore_snapshot' TERM # TEST-TERM-HANDLER"
make_signal_installer() {
local output="$1" handler="$2"
local target_trap="trap 'restore_snapshot; exit 1' ERR INT TERM"
local target_cp=' cp "$abs" "$dst/$rel"'
local inject_open=" if [[ \"\$rel\" == \"$POISON_REL\" ]]; then"
local inject_kill=' kill -TERM "$$" # TEST-TERM-INJECTION'
local inject_close=' fi'
if ! awk \
-v target_trap="$target_trap" -v target_cp="$target_cp" \
-v handler="$handler" -v inject_open="$inject_open" \
-v inject_kill="$inject_kill" -v inject_close="$inject_close" '
$0 == target_cp {
print inject_open
print inject_kill
print inject_close
injection_sites++
}
{ print }
$0 == target_trap {
print handler
handler_sites++
}
END {
if (handler_sites != 1 || injection_sites != 1) exit 42
}
' "$INSTALL" > "$output"; then
rm -f "$output"
fail "Could not construct the self-TERM control installer at the exact trap/copy sites"
exit 1
fi
chmod +x "$output"
}
# Run one keep-mode upgrade with the SIGTERM shim. Echoes "<exit>\t<out>\t<home>".
make_signal_installer "$SIGNALED" "$HANDLER_WITH_EXIT"
make_signal_installer "$NOEXIT" "$HANDLER_WITHOUT_EXIT"
signal_fixture_ready() {
local fixture="$1" expected_handler="$2"
[[ "$(grep -cF '# TEST-TERM-INJECTION' "$fixture")" -eq 1 ]] \
&& [[ "$(grep -cF '# TEST-TERM-HANDLER' "$fixture")" -eq 1 ]] \
&& grep -Fqx "$expected_handler" "$fixture"
}
signaled_fixture_ready() { signal_fixture_ready "$SIGNALED" "$HANDLER_WITH_EXIT"; }
noexit_fixture_ready() { signal_fixture_ready "$NOEXIT" "$HANDLER_WITHOUT_EXIT"; }
chk "[signal] shipped fixture has exactly one self-TERM injection and marked handler" \
"signaled_fixture_ready"
chk "[control] no-exit fixture has exactly one self-TERM injection and marked handler" \
"noexit_fixture_ready"
chk "[control] removing the explicit TERM exit changes the fixture" \
"! cmp -s '$SIGNALED' '$NOEXIT'"
# Run one keep-mode upgrade whose own shell delivers SIGTERM synchronously at
# the selected copy. Echoes "<exit>\t<out>\t<home>".
run_signal_upgrade() {
local installer="$1" H OUT SHIM rc
H=$(mktemp -d); OUT=$(mktemp); SHIM=$(mktemp -d)
local installer="$1" H OUT rc
H=$(mktemp -d); OUT=$(mktemp)
seed_home "$H"
make_term_shim "$SHIM"
set +e
PATH="$SHIM:$ORIG_PATH" \
PATH="$ORIG_PATH" \
MOSAIC_HOME="$H" MOSAIC_INSTALL_MODE=keep MOSAIC_SYNC_ONLY=1 bash "$installer" >"$OUT" 2>&1
rc=$?
set -e 2>/dev/null || true
rm -rf "$SHIM"
printf '%s\t%s\t%s\n' "$rc" "$OUT" "$H"
}
IFS=$'\t' read -r rcC OUTC HC < <(run_signal_upgrade "$INSTALL")
IFS=$'\t' read -r rcC OUTC HC < <(run_signal_upgrade "$SIGNALED")
chk "[signal] TERM handler observable fires exactly once" \
"[ \"\$(grep -cF '$TERM_MARKER' '$OUTC')\" -eq 1 ]"
chk "[signal] SIGTERM mid-sync aborts non-zero (trap exits, does not resume)" \
"[ '$rcC' -ne 0 ]"
chk "[signal] restore_snapshot fires on the interrupt" \
@@ -222,13 +268,13 @@ chk "[signal] restore_snapshot fires on the interrupt" \
chk "[signal] does NOT resume to report sync success after the interrupt" \
"! grep -q 'file phase complete' '$OUTC'"
# Control: strip `exit 1` from the signal trap → the handler returns, the script
# resumes past the interrupt and wrongly reports success. In $FW so SOURCE_DIR resolves.
sed "s/trap 'restore_snapshot; exit 1' ERR INT TERM/trap 'restore_snapshot' ERR INT TERM/" \
"$INSTALL" > "$NOEXIT"
chk "[control] the exit-strip actually changed the installer" \
"! cmp -s '$INSTALL' '$NOEXIT'"
IFS=$'\t' read -r _rcD OUTD HD < <(run_signal_upgrade "$NOEXIT")
IFS=$'\t' read -r rcD OUTD HD < <(run_signal_upgrade "$NOEXIT")
chk "[control] TERM handler observable fires exactly once" \
"[ \"\$(grep -cF '$TERM_MARKER' '$OUTD')\" -eq 1 ]"
chk "[control] without 'exit 1' the handler restores before returning" \
"grep -q 'restoring previous state from snapshot' '$OUTD'"
chk "[control] without 'exit 1' the installer exits zero after resuming" \
"[ '$rcD' -eq 0 ]"
chk "[control] without 'exit 1' the trap resumes and reports sync success (the bug)" \
"grep -q 'file phase complete' '$OUTD'"
@@ -309,10 +355,10 @@ chk "[control] without the D2 recovery line the operator gets no snapshot pointe
# Reap any snapshot the reset-fail runs left in /tmp (reset failed → never cleaned).
grep -o '/[^ ]*mosaic-snapshot[^ ]*' "$OUTH" 2>/dev/null | head -1 | while read -r s; do rm -rf "$s"; done
# Cleanup ($STRIPPED / $NOEXIT / $D1CTRL / $D2CTRL are also removed by the EXIT trap).
# Cleanup (generated installer controls are also removed by the EXIT trap).
for d in "$HA" "$REFA" "$HB" "$REFB" "$HC" "$HD" "$HE" "$REFE" "$HF" "$REFF" "$HG" "$HH"; do rm -rf "$d"; done
rm -f "$OUTA" "$OUTB" "$OUTC" "$OUTD" "$OUTE" "$OUTF" "$OUTG" "$OUTH" \
"$STRIPPED" "$NOEXIT" "$D1CTRL" "$D2CTRL"
"$STRIPPED" "$SIGNALED" "$NOEXIT" "$D1CTRL" "$D2CTRL"
echo
echo "RESULT: $pass passed, $fail failed"
@@ -32,10 +32,6 @@ packages/mosaic/framework/tools/tmux/test-send-message-socket.sh | requires a re
packages/mosaic/framework/tools/tmux/test-send-message-verdict.sh | requires real tmux-pane fixtures on a throwaway socket; CI image ships no tmux; #1017 burndown (same condition as its sibling)
# --- single-suite directories: unmeasured in CI ---
packages/mosaic/framework/tools/fleet/test-start-agent-session.sh | unmeasured in CI image; stubs tmux via a fake bin dir, likely CI-fit; #1017 burndown
packages/mosaic/framework/tools/glpi/test-list-http-status.sh | unmeasured in CI image; stub-based (#807 regression harness), likely CI-fit; #1017 burndown
packages/mosaic/framework/tools/orchestrator/test-board-roll.sh | unmeasured in CI image; file-fixture based, likely CI-fit; #1017 burndown
packages/mosaic/framework/tools/woodpecker/test-ci-wait-exit-matrix.sh | unmeasured in CI image; drives ci-wait.sh against a stub pipeline-status.sh, likely CI-fit; #1017 burndown
# --- naming-boundary files the strict test-*.sh prefix cannot even name ---
# (#1017: three independent censuses handled the microtest file three different
@@ -43,3 +39,20 @@ packages/mosaic/framework/tools/woodpecker/test-ci-wait-exit-matrix.sh | unmeasu
# recorded judgement. These lines ARE that judgement, signed.)
packages/mosaic/framework/tools/orchestrator/smoke-test.sh | behavior smoke checks for coord continue/run workflows, run manually by orchestrator seats; unmeasured in CI; #1017 burndown
packages/mosaic/framework/tools/wake/validate-973/microtest-wake-assert.sh | #973 instrument self-test, run as a precondition of the validate-973 evidence procedure rather than as a standing CI suite; #1017 burndown candidate
# --- tools/fleet: precondition is unsatisfiable in the CI image (#1271) ---
# Signed by fred (sb-it-1-dt, 2026-08-16) at origin/next 476db12.
# This suite asserts the launcher's behaviour when `mosaic` and `pi` are MISSING.
# It shims fakes into $FAKE_BIN, but the constructed PANE_PATH always ends in the
# real system path, so on a host that installs those binaries the missing-binary
# cases cannot be measured at all. The suite's own guard (line 103) says so and
# fails rather than reporting a pass it cannot back. That guard is correct.
# The error was wiring the suite into CI: #1017 (c56483eb) enumerated it and
# dropped this exclusion, and the CI image provides `pi` in the system path, so
# it has failed on every pipeline since. Measured 2026-08-16 across pipelines
# 2444 (#1256), 2438 (#1240) and 2441 (#1017-quality): exactly one FAIL line in
# each full log, identical, this assertion; control `zzz-not-present-zzz` -> 0.
# Burn-down and the full measurement are tracked in #1271; unwired by PR #1270.
# Because test:framework-shell is one && chain and this sat at position 44 of 48,
# the four suites after it had not run at all since the merge.
packages/mosaic/framework/tools/fleet/test-start-agent-session.sh | precondition unsatisfiable in the CI image: asserts missing-binary behaviour, but PANE_PATH always ends in the system path and the image provides `pi` there; guard at line 103 fails by design rather than passing unmeasured. Burn down by controlling the tail of PANE_PATH inside the test. NOT by removing `pi` from the image: the CI image installs @earendil-works/[email protected] deliberately (measured in pipeline 2444's test-step log), and other suites depend on that pin. Burn-down tracked in #1271