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feat(lib): emit memory-commit hash on stdout + T6/T7 (stdout contract, idempotence)

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commit_memory now routes diagnostics to stderr and prints ONLY the memory-commit
short hash to stdout, so the capitalize-commit include can report it. Proven:
- T6: commit→hash (matches independent rev-parse), no-op→empty, unsafe→empty+exit3.
- T7: double run creates exactly one commit (real run, not by construction).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01W9sqAwZxBMZSynZoVrEJhd
This commit is contained in:
Bastien Chanot
2026-06-26 12:45:06 +02:00
co-authored by Claude Opus 4.8
parent 58cb91d2b7
commit bbef41cebf
2 changed files with 44 additions and 5 deletions
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lib/tests/run-deterministic.sh
+31
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@@ -110,6 +110,37 @@ printf ' committed: [%s]\n' "$committed"
if printf '%s\n' "$committed" | grep -q '^.claude/tasks/TODO.md$'; then ok "TODO.md embarked"; else ko "TODO.md not embarked"; fi
rm -rf "$R"
echo "T6 — stdout contract: commit→hash, no-op→empty, unsafe→empty"
R="$(new_repo)"
printf 'CHG\n' >>"$R/.claude/memory/decisions.md"
out="$( (cd "$R" && "$HELPER" commit "chore(memory): T6") 2>/dev/null )"
expected="$(git -C "$R" rev-parse --short HEAD)"
printf ' commit stdout=[%s] HEAD=[%s]\n' "$out" "$expected"
if [ -n "$out" ] && [ "$out" = "$expected" ]; then ok "commit emits the memory-commit hash on stdout"; else ko "hash mismatch [$out] != [$expected]"; fi
out="$( (cd "$R" && "$HELPER" commit "chore(memory): T6-noop") 2>/dev/null )"
printf ' no-op stdout=[%s]\n' "$out"
if [ -z "$out" ]; then ok "no-op emits nothing on stdout"; else ko "no-op leaked stdout [$out]"; fi
printf 'CHG2\n' >>"$R/.claude/memory/decisions.md"
: >"$R/.git/MERGE_HEAD"
out="$( (cd "$R" && "$HELPER" commit "chore(memory): T6-unsafe") 2>/dev/null )"
rc=$?
printf ' unsafe stdout=[%s] exit=%s\n' "$out" "$rc"
if [ -z "$out" ] && [ "$rc" -eq 3 ]; then ok "unsafe emits nothing on stdout, exit 3"; else ko "unsafe leaked stdout [$out] or rc $rc"; fi
rm -rf "$R"
echo "T7 — double run: at most one commit (real run, not by construction)"
R="$(new_repo)"
printf 'ONCE\n' >>"$R/.claude/memory/decisions.md"
base="$(git -C "$R" rev-list --count HEAD)"
h1="$( (cd "$R" && "$HELPER" commit "chore(memory): T7-run1") 2>/dev/null )"
after1="$(git -C "$R" rev-list --count HEAD)"
h2="$( (cd "$R" && "$HELPER" commit "chore(memory): T7-run2") 2>/dev/null )"
after2="$(git -C "$R" rev-list --count HEAD)"
printf ' counts base=%s after1=%s after2=%s ; h1=[%s] h2=[%s]\n' "$base" "$after1" "$after2" "$h1" "$h2"
if [ "$after1" -eq "$((base + 1))" ] && [ -n "$h1" ]; then ok "run1 created exactly one commit (hash emitted)"; else ko "run1 commit count wrong"; fi
if [ "$after2" -eq "$after1" ] && [ -z "$h2" ]; then ok "run2 is a no-op (no 2nd commit, empty stdout)"; else ko "run2 was not a no-op"; fi
rm -rf "$R"
echo
printf 'RESULT: %d passed, %d failed\n' "$PASS" "$FAIL"
[ "$FAIL" -eq 0 ]