CI: Test on several Bazel and Ubuntu versions. #1937
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name: "build protobufs" | |
on: | |
push: | |
branches: | |
- main | |
- '*-dev' | |
pull_request: | |
branches: | |
- main | |
- '*-dev' | |
schedule: | |
- cron: "0 0 * * *" | |
jobs: | |
build: | |
strategy: | |
matrix: | |
# We only test on the oldest version we want to support and latest. | |
# We trust that things also work for versions in the middle. | |
os: [ubuntu-22.04, ubuntu-latest] | |
# See Bazelisk README for legal values. | |
bazel_version: [7.x, latest] | |
# Don't abort other runs when one of them fails, to ease debugging. | |
fail-fast: false | |
runs-on: ${{ matrix.os }} | |
env: | |
# This tells Bazelisk (installed as `bazel`) to use specified version. | |
# https://github.com/bazelbuild/bazelisk?tab=readme-ov-file#how-does-bazelisk-know-which-bazel-version-to-run | |
USE_BAZEL_VERSION: ${{ matrix.bazel_version }} | |
CACHE_KEY: ${{ matrix.os }}_bazel-${{ matrix.bazel_version }} | |
steps: | |
- uses: actions/checkout@v4 | |
with: | |
submodules: recursive | |
- name: Mount bazel cache | |
uses: actions/cache/restore@v4 | |
with: | |
# See https://docs.bazel.build/versions/master/output_directories.html | |
path: "~/.cache/bazel" | |
# Create a new cache entry whenever Bazel files change. | |
# See https://docs.github.com/en/actions/guides/caching-dependencies-to-speed-up-workflows | |
key: ${{ env.CACHE_KEY }}-${{ hashFiles('**/*.bazel*', '**/*.bzl') }} | |
restore-keys: | | |
${{ env.CACHE_KEY }} | |
- name: Save start time | |
uses: josStorer/get-current-time@v2 | |
id: start-time | |
with: | |
# Unix timestamp -- seconds since 1970. | |
format: X | |
- name: Build proto/ | |
run: cd proto && bazel build //... && bazel test //... | |
- name: Build bazel/example/using-bzlmod/ | |
run: cd bazel/example/using-bzlmod && bazel build //... | |
- name: Build bazel/example/using-workspace/ | |
run: cd bazel/example/using-workspace && bazel build //... | |
# This is a legacy example that doesn't work beyond Bazel 7.x. | |
if: ${{ env.USE_BAZEL_VERSION == '7.x' }} | |
- name: Save end time | |
# Always save the end time so we can calculate the build duration. | |
if: always() | |
uses: josStorer/get-current-time@v2 | |
id: end-time | |
with: | |
# Unix timestamp -- seconds since 1970. | |
format: X | |
- name: Calculate build duration | |
# Always calculate the build duration so we can update the cache if needed. | |
if: always() | |
run: | | |
START=${{ steps.start-time.outputs.formattedTime }} | |
END=${{ steps.end-time.outputs.formattedTime }} | |
DURATION=$(( $END - $START )) | |
echo "duration=$DURATION" | tee "$GITHUB_ENV" | |
- name: Compress cache | |
# Always compress the cache so we can update the cache if needed. | |
if: always() | |
run: rm -rf $(bazel info repository_cache) | |
- name: Save bazel cache | |
uses: actions/cache/save@v4 | |
# Only create a new cache entry if we're on the main branch or the build takes >3mins. | |
# | |
# NOTE: Even though `always()` evaluates to true, and `true && x == x`, | |
# the `always() &&` prefix is not redundant! The call to `always()` has a | |
# side effect, which is to override the default behavior of automagically | |
# canceling this step if a previous step failed. | |
# (Don't blame me, blame GitHub Actions!) | |
if: always() && (github.ref_name == 'main' || env.duration > 180) | |
with: | |
path: "~/.cache/bazel" | |
key: ${{ env.CACHE_KEY }}-${{ hashFiles('**/*.bazel*', '**/*.bzl') }}-${{ github.run_id }} |