Files
music-mirror/.gitea/workflows/build-and-publish.yaml
T
Emma ThorpeandClaude Opus 5 6df53d7c42
Build and publish container / build (pull_request) Successful in 3m36s
build: publish amd64 only
The NAS is the only host this container runs on. Building linux/arm64 as well
meant emulating it under QEMU on every release for a consumer that does not
exist, so both the second platform and the QEMU setup step are dropped.

Nothing in the image is architecture-specific; restoring arm64 is a one-line
change if it ever gains a home on the Pi.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-21 15:25:44 +01:00

194 lines
7.2 KiB
YAML

name: Build and publish container
on:
# On merge to main, only build/release when image-affecting files change;
# CI-config and docs changes do not produce a new image. pyproject.toml is
# deliberately absent: the release step below commits to it, and that commit
# must not start another run.
push:
branches: [main]
paths:
- "Dockerfile"
- ".dockerignore"
- "music_mirror.py"
# Pull requests always run (tests and the image build are the checks); no
# path filter.
pull_request:
branches: [main]
workflow_dispatch:
# A newer run cancels an older in-flight run in the same group (keyed by ref),
# so a fresh merge to main supersedes the previous build and only the latest
# release is produced. Each pull request likewise supersedes only its own
# earlier runs.
concurrency:
group: ${{ github.workflow }}-${{ github.ref }}
cancel-in-progress: true
defaults:
run:
shell: bash
jobs:
build:
runs-on: ubuntu-latest
permissions:
contents: write
packages: write
steps:
- name: Checkout
uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6
with:
# Full history and tags are required to derive the next version
# from the conventional-commit messages since the last release.
fetch-depth: 0
# The suite runs inside the image, against the ffmpeg that ships, rather
# than against whatever the runner happens to provide. A failing test
# fails the build. Layers are shared with the push build below.
- name: Run the test suite inside the image
run: docker build --target test -t music-mirror:test .
- name: Determine registry host
run: echo "REGISTRY=${GITHUB_SERVER_URL#*://}" >> "$GITHUB_ENV"
# Derive the release version from conventional commits since the last
# v* tag: feat -> minor, fix/perf -> patch, ! or BREAKING CHANGE -> major.
# Anything else (chore, ci, docs, build) produces no release; those builds
# are published under a sha-<short> tag only.
- name: Compute version and image tags
id: version
run: |
set -euo pipefail
image="${REGISTRY}/${GITHUB_REPOSITORY,,}"
last_tag="$(git tag --list 'v*' --sort=-v:refname | head -n1 || true)"
if [ -n "$last_tag" ]; then
range="${last_tag}..HEAD"
base="${last_tag#v}"
else
range=""
base="0.0.0"
fi
subjects="$(git log ${range} --format='%s')"
bodies="$(git log ${range} --format='%B')"
bump="none"
if printf '%s\n' "$bodies" | grep -qiE 'BREAKING[ -]CHANGE' \
|| printf '%s\n' "$subjects" | grep -qE '^[a-z]+([(][^)]*[)])?!:'; then
bump="major"
elif printf '%s\n' "$subjects" | grep -qE '^feat([(][^)]*[)])?:'; then
bump="minor"
elif printf '%s\n' "$subjects" | grep -qE '^(fix|perf)([(][^)]*[)])?:'; then
bump="patch"
fi
major="${base%%.*}"
rest="${base#*.}"
minor="${rest%%.*}"
patch="${rest##*.}"
release="false"
if [ "${GITHUB_EVENT_NAME}" = "push" ] && [ "$bump" != "none" ]; then
release="true"
case "$bump" in
major) major=$((major + 1)); minor=0; patch=0 ;;
minor) minor=$((minor + 1)); patch=0 ;;
patch) patch=$((patch + 1)) ;;
esac
version="${major}.${minor}.${patch}"
{
echo "tags<<__EOT__"
echo "${image}:${version}"
echo "${image}:${major}.${minor}"
echo "${image}:${major}"
echo "${image}:latest"
echo "__EOT__"
} >> "$GITHUB_OUTPUT"
echo "version=${version}" >> "$GITHUB_OUTPUT"
else
short="$(git rev-parse --short HEAD)"
{
echo "tags<<__EOT__"
echo "${image}:sha-${short}"
echo "__EOT__"
} >> "$GITHUB_OUTPUT"
fi
echo "release=${release}" >> "$GITHUB_OUTPUT"
echo "Computed bump=${bump}, release=${release}, base=${base}"
- name: Set up Buildx
uses: docker/setup-buildx-action@d7f5e7f509e45cec5c76c4d5afdd7de93d0b3df5 # v4
- name: Log in to the Gitea container registry
if: github.event_name != 'pull_request'
uses: docker/login-action@650006c6eb7dba73a995cc03b0b2d7f5ca915bee # v4
with:
registry: ${{ env.REGISTRY }}
username: ${{ github.repository_owner }}
password: ${{ secrets.PACKAGES_SECRET }}
- name: Build and push
uses: docker/build-push-action@f9f3042f7e2789586610d6e8b85c8f03e5195baf # v7
with:
context: .
# Without this the last stage in the Dockerfile -- the test stage --
# would be what gets published.
target: runtime
# The NAS is the only host this runs on. Building arm64 as well would
# mean emulating it under QEMU for no consumer.
platforms: linux/amd64
push: ${{ github.event_name != 'pull_request' }}
tags: ${{ steps.version.outputs.tags }}
labels: |
org.opencontainers.image.source=${{ github.server_url }}/${{ github.repository }}
org.opencontainers.image.revision=${{ github.sha }}
# Record the release: write the computed version into pyproject.toml, then
# commit and tag it, so the packaging metadata always matches the release
# instead of drifting behind it. The version is derived from commit
# messages and only known here, after the build, so it cannot be set by
# hand in the pull request that causes the release.
- name: Record and tag the release
if: steps.version.outputs.release == 'true'
env:
VERSION: ${{ steps.version.outputs.version }}
run: |
set -euo pipefail
python3 - "$VERSION" <<'PY'
import pathlib
import re
import sys
version = sys.argv[1]
path = pathlib.Path("pyproject.toml")
text = path.read_text()
text, count = re.subn(
r'(?m)^version = ".*"$', f'version = "{version}"', text, count=1
)
if count != 1:
raise SystemExit("no version line found in pyproject.toml")
path.write_text(text)
PY
git config user.name "${{ github.actor }}"
git config user.email "${{ github.actor }}@users.noreply.${REGISTRY}"
git add pyproject.toml
# The file may already carry this version, in which case there is
# nothing to commit and `git commit` would fail the job.
if git diff --cached --quiet; then
echo "pyproject.toml is already at ${VERSION}"
else
git commit -m "chore(release): v${VERSION}"
# Push the branch before the tag. If main has moved on and this push
# is rejected, the job fails without having left a tag pointing at a
# commit that is not on main.
git push origin "HEAD:${GITHUB_REF_NAME}"
fi
git tag -a "v${VERSION}" -m "v${VERSION}"
git push origin "v${VERSION}"