Files
openipc-builder/.github/workflows/cleanup.yml
T
222db9e291 ci: keep inherited workflows from billing non-canonical repos (#118)
A clone of this repo pushed to a new repository -- a private mirror, an
internal re-host -- inherits .github/workflows together with its cron.
The full platform matrix then runs on that owner's Actions bill, nightly
and unattended. Forks are only partially covered: GitHub disables
scheduled workflows there, but nothing covers a fresh repository, and
nothing warns the owner.

This mirrors OpenIPC/firmware#2255, where the same inherited cron was
measured at 97 jobs and 2,146 billed minutes from a single unattended
night, and never converged: publishing failed on the mirror, so the sha
skip-gate could never engage and the matrix rebuilt in full every night.

The rule: unattended runs happen only on the canonical repo. Anywhere
else a workflow runs only if someone explicitly asked for it
(workflow_dispatch), or if it is both free and attended (pull_request on
a public repo). This is deliberately stricter than gating purely on cost
-- a public re-host's minutes are free and its cron is still skipped,
because a re-host quietly publishing nightly releases under its own name
is a worse outcome than wasted minutes.

master carries the guard on preflight; buildroot needs it and inherits
the skip. manifest gates its cron-originated workflow_run path the same
way, because a nightly whose jobs all skipped still completes and fires
workflow_run. cleanup carries it on its weekly cron. build-one is
dispatch-only and needs nothing.

The pull_request clause is unreachable here today -- no workflow in this
repo has a pull_request trigger -- and is kept on purpose: it is the
clause that lets contributor PRs run, and omitting it would mean adding
a pull_request trigger later silently skips CI on every fork. That
over-block was the first thing reviewers caught upstream.

Upstream impact is none: on OpenIPC/builder the first disjunct is true,
so every added condition is a tautology and each job's if reduces to
what it was before.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-08-13 09:57:00 +03:00

53 lines
1.6 KiB
YAML

name: cleanup
on:
schedule:
- cron: '0 6 * * 1' # Mondays 06:00 UTC (offset by +1h from firmware's cleanup)
workflow_dispatch:
permissions:
contents: write
actions: write
concurrency:
group: gh-pages-manifest
cancel-in-progress: false
jobs:
prune:
name: Prune old nightly releases
# Canonical repo only on the weekly cron -- see master.yml's preflight.
# Dispatch runs are unaffected.
if: github.event_name != 'schedule' || github.repository == 'OpenIPC/builder'
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- name: Delete releases beyond the 90 newest
id: prune
env:
GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
run: |
set -euo pipefail
to_delete=$(gh release list --limit 200 --json tagName,createdAt \
| jq -r '[ .[] | select(.tagName | test("^nightly-[0-9]{8}-[0-9a-f]{7}$")) ]
| sort_by(.createdAt) | reverse | .[90:] | .[].tagName')
if [ -z "$to_delete" ]; then
echo "Nothing to delete; <=90 dated nightlies present."
echo "pruned=false" >> "$GITHUB_OUTPUT"
exit 0
fi
echo "$to_delete" | while read -r tag; do
[ -z "$tag" ] && continue
echo "Deleting $tag"
gh release delete "$tag" --cleanup-tag --yes
done
echo "pruned=true" >> "$GITHUB_OUTPUT"
- name: Refresh manifest
if: steps.prune.outputs.pruned == 'true'
env:
GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
run: gh workflow run manifest.yml