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Details

Bust the Docker check-layer cache with a per-invocation CHECK_EPOCH (closes #26 )

script/cibuild was a plain `docker build .`, and the Dockerfile does
`COPY . .` followed by `RUN make check`. Docker invalidates a COPY layer
only when the copied content changes, so on an unchanged tree the check
layer was served from cache, the suite never ran, and the build still
exited 0. Measured here: run 1 took 18.5s and ran the suite; run 2 on a
byte-identical tree took 0.286s with `RUN make check` CACHED.

script/cibuild and script/docker now assign a per-invocation nonce on its
own line and pass it as --build-arg CHECK_EPOCH. The Dockerfile declares
ARG CHECK_EPOCH, guards it with `[ -n "$CHECK_EPOCH" ] || exit 1`, and
expands it into the check command. Post-fix, two consecutive runs both
execute make check (17.4s / 8.1s) with `RUN script/bootstrap` still
CACHED, so dependency layers are untouched and the build ceiling is not
at risk.

The guard is what makes a bare `docker build .` — the command
REPO_POLICIES named verbatim — fail closed rather than reuse the empty
and therefore stable cache key; verified failing in 0.455s. Holding the
epoch constant restores the false green (run 2 fully CACHED), which pins
the varying value as the operative mechanism rather than a coincidence.

REPO_POLICIES.md carried the false guarantee as org-canonical text in
two places, and its Go multistage template had check steps in two
stages; ARG is stage-scoped, so both stages get the treatment or the
fleet inherits the half-fixed shape.

2026-08-09 14:46:13 +00:00

2.5 KiB

Raw Blame History

Workflow

branch (from main)
do the work in Next Step
move Next Step to the top of Completed Steps
move the top item of Future Steps into Next Step
commit (TODO.md changes in the same commit as the work)
merge to main if the branch is not protected, otherwise open a PR
push

Status

pre-1.0

Next Step

Finish the two draft prompt documents in the working tree and commit them: prompts/FIXUP_CLEAN.md (currently a near-empty stub) and prompts/FIXUP_REPORT.md (a rough draft). Write the missing content, run make fmt so they pass fmt-check, and commit.

Completed Steps

2026-08-09: Fixed the false green in the canonical CI gate: script/cibuild and script/docker now pass a per-invocation CHECK_EPOCH nonce, and the Dockerfile (plus the Go multistage template in REPO_POLICIES.md, in both its lint and builder stages) declares ARG CHECK_EPOCH with a guard that makes a bare docker build . fail closed. Corrected the org-canonical text that asserted a successful build implies all checks pass.
2026-08-07: Set the canonical .golangci.yml to the org-standard v2-schema config already deployed byte-identical across the org's Go repos (settings under linters.settings so thresholds like lll/funlen/cyclop/dupl actually apply under golangci-lint v2). Recorded the canonical golangci-lint version (v2.12.2, commit-pinned) in REPO_POLICIES.md.
2026-03-20: Strengthened constructor naming and Params struct rules in the Go styleguide.
2026-03-18: Documented fail-fast Dockerfile lint stage and conditional -v test rerun patterns in REPO_POLICIES.md.
2026-03-11: Added HTTP service hardening policy for 1.0 releases.
2026-03-10: Added policy: no build artifacts in repos.
2026-03-04: Added LLM prose tells reference and copyediting checklist, then several self-applied revision passes.
2026-02-28: Expanded the pre-1.0 schema migration rule; added clawpub reference.
2026-02-23: Added Go style rules (no type-only packages, Stringer for string-based types); template repos section in README.
2026-02-22: Initial policy corpus: REPO_POLICIES.md, code styleguides (general, Go, JS, Python), repo checklists, CI policy, hash pinning, Go HTTP server conventions, repo scaffolding.

Future Steps

Finish, format, and commit FIXUP_CLEAN.md and FIXUP_REPORT.md (the Next Step).
Commit this TODO.md at the repo root; it is the last missing policy file.
Decide the fate of untracked resume.sh: commit it or delete it.
Add more prompt templates for common development tasks (from README TODO).