34e66675f0
Adds an opt-in per-agent Gitea identity so a fleet agent can push/commit/open
PRs under its own token instead of the single shared account, giving
cryptographic author-!=-reviewer separation (Gate-16).
Resolution priority (both tools): MOSAIC_GIT_IDENTITY env > git config
mosaic.gitIdentity (per-worktree, persists on disk) > git-supplied username
(git-credential-mosaic only). If the resolved identity has a token file at
~/.config/mosaic/secrets/gitea-tokens/gitea-{usc,mosaicstack}-<id>.token, that
identity is used; otherwise both tools fall through to the existing
shared-account path unchanged, so this is a no-op on any host without
per-slot tokens configured.
- tools/git/git-credential-mosaic: new git credential helper (get verb).
- tools/git/detect-platform.sh: get_gitea_token() gains the same identity
resolution, prepended ahead of the existing shared-token logic, so API
tooling (pr-create.sh, issue-create.sh, ...) authors under the same
identity as git push/fetch.
- install.sh: explicit chmod +x for git-credential-mosaic (it ships without
a .sh suffix, so the existing *.sh glob does not cover it); tools/** is
already framework-owned so the file syncs automatically.
- tools/git/README.md: documents the feature, the one-time
`git config credential.helper` registration step (deliberately not
auto-wired — see README for why), and the PowerShell-parity decision
(detect-platform.ps1 authenticates via tea logins, not a raw-token
function, so there is nothing to port there).
- tools/git/test-git-credential-mosaic.sh,
tools/git/test-gitea-token-identity.sh: new regression harnesses (red
verified against the pre-patch code) covering identity-resolution
priority, per-host token path selection, and shared-account fallback.
Wired into package.json's test:framework-shell.
Upstreams Mos host-local tooling-patch kit (2026-07-23), Patches 1+2.
Closes #873
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
70 lines
3.1 KiB
Bash
70 lines
3.1 KiB
Bash
#!/bin/bash
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# git-credential-mosaic — git credential helper — resolves Gitea tokens from
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# the Mosaic credential store at runtime so remote URLs never embed secrets.
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#
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# Install (one-time, per clone or globally):
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# git config credential.helper "$HOME/.config/mosaic/tools/git/git-credential-mosaic"
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# # or, fleet-wide: git config --global credential.helper "$HOME/.config/mosaic/tools/git/git-credential-mosaic"
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#
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# Per-agent Gate-16 identity (author != reviewer separation):
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# git config mosaic.gitIdentity <agent-id> # per-worktree, persists on disk
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# # or: export MOSAIC_GIT_IDENTITY=<agent-id>
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#
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# Resolution priority: MOSAIC_GIT_IDENTITY env > git config mosaic.gitIdentity
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# (per-worktree, survives across non-persistent shells) > git-supplied username
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# (credential.username / URL). When the resolved identity has a matching
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# per-agent token file, use it instead of the shared account. Backward
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# compatible: nothing resolvable -> shared token (unchanged behavior).
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[ "$1" = "get" ] || exit 0
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host=""; username_in=""
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while IFS= read -r line; do
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[ -z "$line" ] && break
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case "$line" in
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host=*) host=${line#host=};;
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username=*) username_in=${line#username=};;
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esac
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done
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# Per-agent identity resolution (Gate-16 author≠reviewer separation).
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# Priority: MOSAIC_GIT_IDENTITY env > git config mosaic.gitIdentity (per-worktree,
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# survives across non-persistent shells) > git-supplied username (credential.username
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# / URL). When the resolved identity has a matching per-agent token, use it instead of
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# the shared account. Backward-compatible: nothing resolvable → shared token.
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ident="$MOSAIC_GIT_IDENTITY"
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[ -z "$ident" ] && ident=$(git config --get mosaic.gitIdentity 2>/dev/null)
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[ -z "$ident" ] && ident="$username_in"
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if [ -n "$ident" ]; then
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case "$host" in
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git.uscllc.com) idpfx=gitea-usc;;
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git.mosaicstack.dev) idpfx=gitea-mosaicstack;;
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*) idpfx="";;
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esac
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if [ -n "$idpfx" ]; then
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idtok="$HOME/.config/mosaic/secrets/gitea-tokens/${idpfx}-${ident}.token"
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if [ -r "$idtok" ]; then
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echo "username=${ident}"
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echo "password=$(cat "$idtok")"
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exit 0
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fi
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fi
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fi
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case "$host" in
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git.uscllc.com) svc=gitea-usc;;
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git.mosaicstack.dev) svc=gitea-mosaicstack;;
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*) exit 0;;
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esac
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# Script-relative (not $HOME-absolute) so this resolves correctly regardless
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# of where the framework installer places tools/ under $HOME — mirrors
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# detect-platform.sh's own cred_loader resolution in this same directory.
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script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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# shellcheck source=../_lib/credentials.sh
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source "$script_dir/../_lib/credentials.sh"
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load_credentials "$svc" >/dev/null 2>&1 || exit 0
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# GITEA_USER is not populated by load_credentials (it only exports
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# GITEA_URL/GITEA_TOKEN for gitea-*), so this fallback is normally taken. Gitea's
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# git-over-HTTP auth authenticates from the token itself (the password field),
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# not from the username string, so any non-empty placeholder works here — this
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# is deliberately NOT a real account name (framework files must stay
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# operator-agnostic; see tools/quality/scripts/verify-sanitized.sh).
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echo "username=${GITEA_USER:-git}"
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echo "password=$GITEA_TOKEN"
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