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stack/packages/mosaic/framework/tools/git/pr-view.sh
T
fred 15644d81d4 fix(#1356): tea login resolution fails closed on a declared git identity
get_gitea_login_for_host() returned the FIRST tea login matching the host. With
43 logins on this host, roughly half match one server, so a seat whose own login
was missing silently acted as whichever identity happened to sort first. That
satisfies gate 16 mechanically (an author and a reviewer exist) while violating
it (both are the same actor under two names).

A seat now declares itself via MOSAIC_GIT_IDENTITY or `git config
mosaic.gitIdentity`, and resolution derives the canonical login name from that
identity plus the instance (`<instance>-<seat>`). If that login is absent it
fails closed with a named error and the command to create it. It never borrows.

Same rule on the --repo override path, which had it worse: it fell through to
get_default_tea_login(), i.e. the default-marked login or, failing that, the
first login of ANY host -- an identity chosen by config file order. The four
callers now pass the owner so the instance can be derived. With no identity set
(a human at a terminal) the old fallback is unchanged, which is the same point
at which the token path stops enforcing.

lane-brief.sh mapped owners straight to the SHARED `usc` / `mosaicstack` logins.
The ladder now goes first there, and a seat that cannot resolve its own login
exits rather than falling through to a shared one.

Also adds tools/fleet/seat-logins.sh: projects seat credentials into tea logins
under canonical names, so the name this code requires is one an operator can
mechanically produce rather than hand-maintain.

Test notes:
- The suite had TWO sandbox helpers, run_in_repo and a near-copy run_in_repo2.
  The copy drifted: it never got the identity unset, so the suite kept failing on
  a provisioned seat after the original was already fixed. run_in_repo2 now
  delegates, so the guarantee lives in one place.
- New coverage for both ladder branches (login present -> used; absent -> named
  error and NOTHING on stdout, proving it did not borrow the matching login
  sitting right there), both identity rungs, the --repo path, and explicit
  GITEA_LOGIN outranking the ladder. Each verified by injecting the regression it
  claims to catch and confirming it goes red.
- test-issue-create-body-safety.sh now pins the no-identity case; its subject is
  body quoting, and an ambient seat identity made it fail for an unrelated reason.
- test-issue-close-fail-closed.sh derives its fixture login from the runner's
  identity. This does not make it hermetic and does not claim to: its API-path
  cases need a real credential for the runner's own identity, so it passes only
  where the runner owns one, on this branch and on its base alike. Pre-existing,
  documented in the PR rather than papered over.
2026-08-21 16:01:30 -05:00

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#!/bin/bash
# pr-view.sh - View pull request details on GitHub or Gitea
# Usage: pr-view.sh -n <pr_number> [-r owner/repo]
set -e
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
source "$SCRIPT_DIR/detect-platform.sh"
# Parse arguments
PR_NUMBER=""
REPO_OVERRIDE=""
while [[ $# -gt 0 ]]; do
case $1 in
-n|--number)
PR_NUMBER="$2"
shift 2
;;
-r|--repo)
REPO_OVERRIDE="$2"
shift 2
;;
-h|--help)
echo "Usage: pr-view.sh -n <pr_number> [-r owner/repo]"
echo ""
echo "Options:"
echo " -n, --number PR number (required)"
echo " -r, --repo Repository slug (default: infer from git origin)"
echo " -h, --help Show this help"
exit 0
;;
*)
echo "Unknown option: $1"
exit 1
;;
esac
done
if [[ -z "$PR_NUMBER" ]]; then
echo "Error: PR number is required (-n)"
exit 1
fi
if [[ -n "$REPO_OVERRIDE" ]]; then
REPO_INFO="$REPO_OVERRIDE"
PLATFORM=$(detect_platform 2>/dev/null || echo gitea)
else
PLATFORM=$(detect_platform)
REPO_INFO=$(get_repo_info)
fi
if [[ -z "$REPO_INFO" || "$REPO_INFO" == error:* ]]; then
echo "Error: Could not determine repository from git origin. Run from a repo or pass --repo." >&2
exit 1
fi
if [[ "$PLATFORM" == "github" ]]; then
gh pr view "$PR_NUMBER" --repo "$REPO_INFO"
elif [[ "$PLATFORM" == "gitea" ]]; then
if [[ -n "$REPO_OVERRIDE" ]]; then
GITEA_LOGIN_NAME=$(get_gitea_login_for_repo_override "$REPO_OVERRIDE") || {
echo "Error: Could not resolve Gitea login for --repo override. Set GITEA_LOGIN or configure a default tea login." >&2
exit 1
}
else
GITEA_LOGIN_NAME=$(get_gitea_login) || {
echo "Error: Could not resolve Gitea login for remote host" >&2
exit 1
}
fi
tea pr "$PR_NUMBER" --repo "$REPO_INFO" --login "$GITEA_LOGIN_NAME"
else
echo "Error: Unknown platform"
exit 1
fi