`on: push:` with no filter also fires on refs/tags/v*, which is duplicate work:
the tagged tree was already linted when that same commit was pushed to main
(v1.6.4 sha e86e5df linted as id=529 on main, then again as id=531 on the tag).
Two costs beyond the wasted run. It consumed one of the two self-hosted runners
while the release pipeline wanted both for its parallel multi-arch variant
builds; and it made release-run discovery ambiguous, since the newest-first runs
listing puts the tag-ref lint run above the publish run.
`branches: ['**']` keeps the documented intent exactly — lint fires early on
every branch push and PR, rather than only at tag time — while excluding tag
refs. docker-publish.yml is untouched and still tag-scoped.
Repo/CI hygiene batch (none base-affecting; image contents unchanged):
- LICENSE: actual MIT file (repo previously declared MIT only in prose).
- THIRD_PARTY.md: notes bundled software + licenses (pi/pi-fork/pi-obsmem/
pi-studio MIT, gosu Apache-2.0, Debian packages under their own terms).
- .dockerignore: trims build context to what the Dockerfiles COPY (rootfs/ +
entrypoint*.sh); keeps .git/docs/scripts/compose out. Verified it excludes
none of the required COPY sources.
- lint.yml: new hadolint job (pinned v2.14.0) lints both Dockerfiles;
.hadolint.yaml grandfathers deliberate choices (DL3008/DL3016/DL4006/DL3003/
SC2086, mirroring the shellcheck excludes), fails on anything new at warning+.
Verified hadolint exit 0 and the repo shell-guard passes with the new job.
- IDEAS.md: parks deferred follow-ups (SHA-pin actions, trivy, buildx SBOM/
provenance, Makefile, renovate).
- README/DOCKER_HUB License sections now link LICENSE + THIRD_PARTY.md.
No tag.
actionlint's no-arg project auto-detection looks for .github/workflows
and hard-fails (exit 3, 'no project was found') on this .gitea/workflows
layout — observed on run 420. Glob the workflow files explicitly. The
Gitea shell guard step already passed in that run; only the actionlint
invocation needed the path fix.
Root cause of the recurring 'Illegal option -o pipefail' failures
(ed49b8d resolve-versions; b7197e8 promote-base-latest, run 418):
docker-publish.yml had no workflow-level default shell, so Gitea's
sh/dash default applied and every bash-syntax step had to individually
remember 'shell: bash'.
- docker-publish.yml: add 'defaults: run: shell: bash' — fixes the whole
class; all pre-existing dash steps are POSIX so bash runs them unchanged.
- lint.yml: new workflow, runs on every push/PR (not just release tags):
* scripts/check-workflow-shell.sh — Gitea-accurate guard: fails if any
run: step doesn't resolve to bash. Catches the omit-shell+bash-syntax
case that actionlint MISSES (actionlint models GitHub, where the
default shell is bash, so a shell-less step is assumed bash).
* actionlint + shellcheck — catches explicit 'shell: sh' + bash syntax
(SC3040) and general workflow errors.
Verified locally: guard + actionlint pass current workflows; guard fails
a synthetic omit-shell+pipefail workflow; shellcheck clean.
pi