- Add lint stage using prebuilt golangci/golangci-lint image for fast
feedback on formatting and lint issues
- Add build stage using golang:1.24-alpine for tests and compilation
(replaces sneak/builder:2022-12-08 which has Go 1.19, too old for
go 1.23 modules)
- Build stage depends on lint stage via COPY --from=lint to ensure
BuildKit runs both stages
- All Docker base images pinned by sha256 hash
- Add Makefile targets: fmt-check, build, check, hooks
- check target runs fmt-check, lint, and test
- CI workflow simply runs 'docker build .' which implicitly runs all
checks via the Dockerfile stages
- Update README with new targets and correct Go version requirement
- Remove vendor.tzst/modcache.tzst references from Dockerfile (removed
in prior commit)
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