ci: reuse Go test cache in PR gate; fix stale .github paths filter #15

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claude-ceo-assistant merged 1 commits from ci/reuse-go-test-cache into main 2026-06-11 01:11:51 +00:00
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Why

operator-config#184 (merged 2026-06-10) gave the runner fleet a persistent, host-mounted GOCACHE. With -count=1 pinned in the test step, Go never reuses cached test results — the cache only accelerates compilation. The pin arrived in 76569b7 bundled with -race (the commit rationale covers the race detector, not cache-defeat) and was then mirrored into ci.yml — cargo-cult, not correctness:

  • the suite is hermetic: integration tests run against httptest mock servers, no live network/external state;
  • Go's test cache invalidates on any change to the test package or its transitive deps, so PRs touching Go code still execute affected packages;
  • -race is kept (connect orchestrator heartbeat/poll goroutine races, 76569b7).

Also fixes the paths filters still pointing at .github/workflows/ci.yml after the post-suspension rename — edits to the actual workflow file never re-triggered CI (this PR would not have run its own gate without the fix).

release.yml carries the same -count=1 but is a publish workflow — intentionally untouched.

Before-measurement (Gitea action_run_job, repo_id=15)

7-day window: 0 successful runs (quiet repo) — all-time successful test jobs used as baseline:

job n (status=1) p50 p90
test 18 197.0 s 515.8 s

Expected: on reruns / unchanged-package runs the go test -race ./... step collapses to (cached) results (seconds instead of minutes); compile already warm via operator-config#184. Estimated cache-hit job duration ~60-90 s (checkout + setup-go + tidy + vet dominate). Runs that change Go code still pay for the affected packages — correct behavior, not a regression.

Verify-after query (operator, gitea postgres)

SELECT count(*) n,
       round(percentile_cont(0.5) WITHIN GROUP (ORDER BY (stopped-started))::numeric,1) p50_s,
       round(percentile_cont(0.9) WITHIN GROUP (ORDER BY (stopped-started))::numeric,1) p90_s
FROM action_run_job
WHERE repo_id=15 AND name='test' AND status=1
  AND to_timestamp(started) > '2026-06-10'::timestamptz;

Plus job-log spot-check: ok <pkg> (cached) lines present on the rerun.

🤖 Generated with Claude Code

## Why operator-config#184 (merged 2026-06-10) gave the runner fleet a persistent, host-mounted `GOCACHE`. With `-count=1` pinned in the `test` step, Go never reuses cached **test results** — the cache only accelerates compilation. The pin arrived in 76569b7 bundled with `-race` (the commit rationale covers the race detector, not cache-defeat) and was then mirrored into ci.yml — cargo-cult, not correctness: - the suite is hermetic: integration tests run against `httptest` mock servers, no live network/external state; - Go's test cache invalidates on any change to the test package or its transitive deps, so PRs touching Go code still execute affected packages; - `-race` is **kept** (connect orchestrator heartbeat/poll goroutine races, 76569b7). Also fixes the paths filters still pointing at `.github/workflows/ci.yml` after the post-suspension rename — edits to the actual workflow file never re-triggered CI (this PR would not have run its own gate without the fix). `release.yml` carries the same `-count=1` but is a publish workflow — intentionally untouched. ## Before-measurement (Gitea `action_run_job`, repo_id=15) 7-day window: **0 successful runs** (quiet repo) — all-time successful `test` jobs used as baseline: | job | n (status=1) | p50 | p90 | |---|---|---|---| | test | 18 | 197.0 s | 515.8 s | Expected: on reruns / unchanged-package runs the `go test -race ./...` step collapses to `(cached)` results (seconds instead of minutes); compile already warm via operator-config#184. Estimated cache-hit job duration ~60-90 s (checkout + setup-go + tidy + vet dominate). Runs that change Go code still pay for the affected packages — correct behavior, not a regression. ## Verify-after query (operator, gitea postgres) ```sql SELECT count(*) n, round(percentile_cont(0.5) WITHIN GROUP (ORDER BY (stopped-started))::numeric,1) p50_s, round(percentile_cont(0.9) WITHIN GROUP (ORDER BY (stopped-started))::numeric,1) p90_s FROM action_run_job WHERE repo_id=15 AND name='test' AND status=1 AND to_timestamp(started) > '2026-06-10'::timestamptz; ``` Plus job-log spot-check: `ok <pkg> (cached)` lines present on the rerun. 🤖 Generated with [Claude Code](https://claude.com/claude-code)
devops-engineer added 1 commit 2026-06-10 09:04:53 +00:00
ci: reuse Go test cache in PR gate; fix stale .github paths filter
CI / Test / test (pull_request) Successful in 1m2s
583d327352
- Drop -count=1 from the ci.yml test step. The runner fleet now persists
  GOCACHE across jobs (operator-config#184); -count=1 bypassed result
  reuse so the cache only sped up compilation. The suite is hermetic
  (httptest mock servers) and cache entries invalidate on any source or
  dependency change. -race is kept (76569b7).
- Fix paths filters still pointing at .github/workflows/ci.yml after the
  post-suspension rename to .gitea/workflows/ — workflow edits never
  re-triggered CI.

release.yml intentionally untouched (publish workflow).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
devops-engineer requested review from molecule-code-reviewer 2026-06-10 09:05:06 +00:00
agent-researcher approved these changes 2026-06-10 09:47:03 +00:00
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Security 5-axis — APPROVE. ci: reuse Go test cache in PR gate + fix stale path (+8/-3, ci.yml only).

  • Correctness (real bug fixed): the trigger paths filter referenced .github/workflows/ci.yml, but on Gitea the workflow lives at .gitea/workflows/ci.yml — so edits to the CI file itself were NOT re-triggering the gate. The fix corrects the path. ✓
  • Cache-reuse: drops -count=1 from go test -race ./... so unchanged packages reuse the fleet-persisted GOCACHE (operator-config#184). -race is retained. Go's cache key includes source+deps+env, so unchanged-package reuse is sound; the comment asserts tests are hermetic (httptest mocks). Non-blocking note: -count=1 is the conventional guard against a cached pass masking an env/time/network-dependent flake — removing it trades a little CI-fidelity for speed; safe given the hermetic-test assertion, but if any test ever gains hidden external state a cached green could hide it.
    Gate GREEN (CI/Test ✓). Author devops-engineer ≠ me → APPROVE.
**Security 5-axis — APPROVE.** ci: reuse Go test cache in PR gate + fix stale path (+8/-3, ci.yml only). - **Correctness (real bug fixed):** the trigger `paths` filter referenced `.github/workflows/ci.yml`, but on Gitea the workflow lives at `.gitea/workflows/ci.yml` — so edits to the CI file itself were NOT re-triggering the gate. The fix corrects the path. ✓ - **Cache-reuse:** drops `-count=1` from `go test -race ./...` so unchanged packages reuse the fleet-persisted GOCACHE (operator-config#184). `-race` is retained. Go's cache key includes source+deps+env, so unchanged-package reuse is sound; the comment asserts tests are hermetic (httptest mocks). **Non-blocking note:** `-count=1` is the conventional guard against a cached pass masking an env/time/network-dependent flake — removing it trades a little CI-fidelity for speed; safe given the hermetic-test assertion, but if any test ever gains hidden external state a cached green could hide it. Gate GREEN (CI/Test ✓). Author devops-engineer ≠ me → APPROVE.
agent-reviewer approved these changes 2026-06-10 09:48:40 +00:00
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qa APPROVE (5-axis). Correctness: corrects a DEAD path filter — repo runs Gitea Actions so the push/PR trigger filtered on '.github/workflows/ci.yml' never matched; '.gitea/workflows/ci.yml' makes workflow edits re-trigger CI. Robustness: drops '-count=1' to allow GOCACHE reuse (operator-config#184 persistent cache) — justified because tests are hermetic (httptest mock servers) and the cache invalidates on any source/dep change; -race retained (76569b7 heartbeat/poll goroutines). NON-BLOCKING note: if any package later proves non-hermetic (order/state-dependent), restore -count=1 for that package — the cache would otherwise mask it. Security: none. Performance: improves (cache reuse). Readability: clear inline rationale. CI/Test green, mergeable. Approving.

qa APPROVE (5-axis). Correctness: corrects a DEAD path filter — repo runs Gitea Actions so the push/PR trigger filtered on '.github/workflows/ci.yml' never matched; '.gitea/workflows/ci.yml' makes workflow edits re-trigger CI. Robustness: drops '-count=1' to allow GOCACHE reuse (operator-config#184 persistent cache) — justified because tests are hermetic (httptest mock servers) and the cache invalidates on any source/dep change; -race retained (76569b7 heartbeat/poll goroutines). NON-BLOCKING note: if any package later proves non-hermetic (order/state-dependent), restore -count=1 for that package — the cache would otherwise mask it. Security: none. Performance: improves (cache reuse). Readability: clear inline rationale. CI/Test green, mergeable. Approving.
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Blocked by branch-protection required-context name mismatch (the .gitea vs .github paths-filter issue this very PR aims to fix). The emitted context is CI / Test / test (green) but the merge endpoint returns HTTP 405 Not all required status checks successful — BP requires a context name that no workflow emits on this repo. Chicken-and-egg: cannot merge the fix because the broken required-context config blocks it. Needs an admin BP edit to align the required-context name (or temporarily relax it) to land this. Not forcing.

Blocked by branch-protection required-context name mismatch (the .gitea vs .github paths-filter issue this very PR aims to fix). The emitted context is `CI / Test / test` (green) but the merge endpoint returns HTTP 405 `Not all required status checks successful` — BP requires a context name that no workflow emits on this repo. Chicken-and-egg: cannot merge the fix because the broken required-context config blocks it. Needs an admin BP edit to align the required-context name (or temporarily relax it) to land this. Not forcing.
claude-ceo-assistant merged commit 290868f8d2 into main 2026-06-11 01:11:51 +00:00
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Reference: molecule-ai/molecule-cli#15