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core.filemode=false in this worktree meant the initial commit recorded git-credential-mosaic, test-git-credential-mosaic.sh, and test-gitea-token-identity.sh as 100644. git invokes a path-configured credential.helper directly (exec, not `sh <path>`), so git-credential-mosaic must carry the executable bit; the two test scripts match the 100755 convention already used by the other test-*.sh harnesses in this directory. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
162 lines
8.1 KiB
Bash
Executable File
162 lines
8.1 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Regression harness for `git-credential-mosaic` — per-agent Gitea identity
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# resolution (Gate-16 author≠reviewer separation).
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#
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# Covers:
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# 1. Identity resolution priority: MOSAIC_GIT_IDENTITY env > git config
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# mosaic.gitIdentity (per-worktree) > git-supplied username.
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# 2. Correct per-slot token file path chosen per host
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# (gitea-usc-<id>.token vs gitea-mosaicstack-<id>.token).
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# 3. Per-slot token present -> emits that identity + token.
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# 4. Per-slot token absent -> falls back to the shared account
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# (backward-compat / no-op for hosts without per-slot tokens).
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# 5. Unknown/unrelated host -> exits 0 with no output (passthrough).
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#
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# Uses stubbed token files under a fake HOME + a real (throwaway) git repo.
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# NEVER reads real secrets or touches the real ~/.config/mosaic/secrets.
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set -euo pipefail
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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WORK_DIR="${MOSAIC_TEST_WORK_DIR:-$PWD/.mosaic-test-work/git-credential-mosaic}"
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FAKE_HOME="$WORK_DIR/home"
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REPO_DIR="$WORK_DIR/repo"
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# Mirror the real deployed layout (~/.config/mosaic/tools/{git,_lib}/) under the
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# fake HOME: git-credential-mosaic resolves its credentials.sh sibling via a
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# script-relative path (BASH_SOURCE), so the copy must live next to a stubbed
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# _lib/credentials.sh, not the real one, to keep this test hermetic.
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HELPER="$FAKE_HOME/.config/mosaic/tools/git/git-credential-mosaic"
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rm -rf "$WORK_DIR"
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mkdir -p "$FAKE_HOME/.config/mosaic/secrets/gitea-tokens" \
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"$FAKE_HOME/.config/mosaic/tools/git" \
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"$FAKE_HOME/.config/mosaic/tools/_lib" \
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"$REPO_DIR"
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cp "$SCRIPT_DIR/git-credential-mosaic" "$HELPER"
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chmod +x "$HELPER"
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git -C "$REPO_DIR" init -q
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git -C "$REPO_DIR" config user.email "test@example.invalid"
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git -C "$REPO_DIR" config user.name "Test"
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# Fake shared-account credential loader — stands in for
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# tools/_lib/credentials.sh's load_credentials(), scoped to this test only.
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cat > "$FAKE_HOME/.config/mosaic/tools/_lib/credentials.sh" <<'SH'
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load_credentials() {
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case "$1" in
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gitea-mosaicstack) GITEA_URL="https://git.mosaicstack.dev"; GITEA_TOKEN="shared-mosaicstack-token"; export GITEA_URL GITEA_TOKEN; return 0 ;;
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gitea-usc) GITEA_URL="https://git.uscllc.com"; GITEA_TOKEN="shared-usc-token"; export GITEA_URL GITEA_TOKEN; return 0 ;;
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*) return 1 ;;
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esac
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}
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SH
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fail=0
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assert_eq() {
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local desc="$1" expected="$2" actual="$3"
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if [[ "$expected" != "$actual" ]]; then
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echo "FAIL: $desc — expected '$expected', got '$actual'" >&2
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fail=1
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fi
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}
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# Feed "host=<h>\nusername=<u>\n\n" on stdin (mirrors git's credential protocol)
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# and run the helper with the fake HOME, inside REPO_DIR (so `git config
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# mosaic.gitIdentity` resolves per-worktree), plus any extra env passed in $@.
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run_helper() {
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local host="$1" username_in="$2"; shift 2
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(
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cd "$REPO_DIR"
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env -i HOME="$FAKE_HOME" PATH="$PATH" "$@" bash "$HELPER" get <<EOF
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host=$host
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username=$username_in
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EOF
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)
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}
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# ---------------------------------------------------------------------------
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# 1. No identity resolvable anywhere, no per-slot token -> shared fallback
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# (backward-compat: unchanged behavior when nothing is configured).
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# ---------------------------------------------------------------------------
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git -C "$REPO_DIR" config --unset mosaic.gitIdentity 2>/dev/null || true
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out=$(run_helper "git.mosaicstack.dev" "")
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assert_eq "shared fallback: username" "username=git" "$(echo "$out" | grep '^username=')"
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assert_eq "shared fallback: password" "password=shared-mosaicstack-token" "$(echo "$out" | grep '^password=')"
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# ---------------------------------------------------------------------------
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# 2. git-supplied username resolves to an identity WITH a per-slot token ->
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# that identity + token wins over the shared account.
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# ---------------------------------------------------------------------------
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echo -n "agentA-mosaicstack-token" > "$FAKE_HOME/.config/mosaic/secrets/gitea-tokens/gitea-mosaicstack-agentA.token"
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out=$(run_helper "git.mosaicstack.dev" "agentA")
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assert_eq "username-resolved identity: username" "username=agentA" "$(echo "$out" | grep '^username=')"
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assert_eq "username-resolved identity: password" "password=agentA-mosaicstack-token" "$(echo "$out" | grep '^password=')"
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# ---------------------------------------------------------------------------
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# 3. git config mosaic.gitIdentity (per-worktree) beats git-supplied username.
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# ---------------------------------------------------------------------------
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echo -n "agentB-mosaicstack-token" > "$FAKE_HOME/.config/mosaic/secrets/gitea-tokens/gitea-mosaicstack-agentB.token"
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git -C "$REPO_DIR" config mosaic.gitIdentity agentB
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out=$(run_helper "git.mosaicstack.dev" "agentA")
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assert_eq "git-config beats username: username" "username=agentB" "$(echo "$out" | grep '^username=')"
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assert_eq "git-config beats username: password" "password=agentB-mosaicstack-token" "$(echo "$out" | grep '^password=')"
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# ---------------------------------------------------------------------------
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# 4. MOSAIC_GIT_IDENTITY env beats git config mosaic.gitIdentity.
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# ---------------------------------------------------------------------------
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echo -n "agentC-mosaicstack-token" > "$FAKE_HOME/.config/mosaic/secrets/gitea-tokens/gitea-mosaicstack-agentC.token"
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out=$(run_helper "git.mosaicstack.dev" "agentA" MOSAIC_GIT_IDENTITY=agentC)
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assert_eq "env beats git-config: username" "username=agentC" "$(echo "$out" | grep '^username=')"
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assert_eq "env beats git-config: password" "password=agentC-mosaicstack-token" "$(echo "$out" | grep '^password=')"
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git -C "$REPO_DIR" config --unset mosaic.gitIdentity
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# ---------------------------------------------------------------------------
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# 5. Identity resolves, but no matching per-slot token file -> falls back to
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# the shared account (per-agent identity is opt-in, not a hard requirement).
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# ---------------------------------------------------------------------------
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out=$(run_helper "git.mosaicstack.dev" "no-such-agent")
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assert_eq "no per-slot token: username" "username=git" "$(echo "$out" | grep '^username=')"
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assert_eq "no per-slot token: password" "password=shared-mosaicstack-token" "$(echo "$out" | grep '^password=')"
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# ---------------------------------------------------------------------------
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# 6. Correct per-slot token PATH is chosen per host: same agent id, different
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# host prefix (gitea-usc- vs gitea-mosaicstack-).
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# ---------------------------------------------------------------------------
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echo -n "agentD-usc-token" > "$FAKE_HOME/.config/mosaic/secrets/gitea-tokens/gitea-usc-agentD.token"
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out=$(run_helper "git.uscllc.com" "agentD")
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assert_eq "host-scoped token path (usc): username" "username=agentD" "$(echo "$out" | grep '^username=')"
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assert_eq "host-scoped token path (usc): password" "password=agentD-usc-token" "$(echo "$out" | grep '^password=')"
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# agentD has NO mosaicstack token -> must fall back to shared mosaicstack, not
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# leak the usc token across hosts.
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out=$(run_helper "git.mosaicstack.dev" "agentD")
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assert_eq "host-scoped token path (cross-host must not leak): username" "username=git" "$(echo "$out" | grep '^username=')"
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assert_eq "host-scoped token path (cross-host must not leak): password" "password=shared-mosaicstack-token" "$(echo "$out" | grep '^password=')"
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# ---------------------------------------------------------------------------
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# 7. Unrelated/unknown host -> exit 0, no output (passthrough for non-Gitea
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# remotes, e.g. github.com via a different credential helper).
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# ---------------------------------------------------------------------------
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out=$(run_helper "github.com" "agentA")
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assert_eq "unknown host: no output" "" "$out"
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# ---------------------------------------------------------------------------
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# 8. Non-"get" verb (store/erase) -> exit 0, no output (git-credential
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# protocol: this helper only implements get).
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# ---------------------------------------------------------------------------
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store_out=$(cd "$REPO_DIR" && env -i HOME="$FAKE_HOME" PATH="$PATH" bash "$HELPER" store <<EOF
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host=git.mosaicstack.dev
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username=agentA
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password=whatever
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EOF
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)
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assert_eq "store verb: no output" "" "$store_out"
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if [[ "$fail" -eq 0 ]]; then
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echo "git-credential-mosaic identity resolution regression passed"
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fi
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exit "$fail"
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