Test #2853
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name: "Test" | |
on: | |
pull_request: | |
push: | |
# Run periodically, to build with latest -unstable releases. Caching makes | |
# this a cheap operation when nothing changed, so no need for further logic. | |
schedule: | |
# 13 is a random non-0 minute to be nice to GitHub because most jobs | |
# probably run on the hour. Give it a bit more time than the timeout of jobs | |
# (5h) to allow the caching step to finish uploading cache so the next job | |
# can pick up where the timed out job left off. | |
- cron: '13 */6 * * *' | |
jobs: | |
tests: | |
# Leave some time for the post actions to run, particularly cachix to upload | |
# any successful builds. | |
timeout-minutes: 300 | |
strategy: | |
fail-fast: false | |
matrix: | |
config: | |
- os: ubuntu-latest | |
channel: nixpkgs-unstable | |
- os: macos-latest | |
channel: nixpkgs-unstable | |
runs-on: ${{ matrix.config.os }} | |
concurrency: | |
# Different runs of the same job are very likely candidates for (partial) | |
# caching, which is defeated in parallel runs. Be nice to GitHub. | |
group: ${{ matrix.config.os }}-${{ matrix.config.channel }}-${{ github.ref }} | |
cancel-in-progress: true | |
steps: | |
- uses: actions/checkout@v4 | |
- uses: DeterminateSystems/nix-installer-action@v9 | |
- uses: cachix/cachix-action@v14 | |
with: | |
name: cl-nix-lite | |
authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}' | |
# Use GH Actions cache /in addition to/ Cachix because my cachix allowance | |
# account is too small to cache a single run. | |
- uses: DeterminateSystems/magic-nix-cache-action@main | |
- name: "Pin the nixpkgs channel to ${{ matrix.config.channel }}" | |
# Works for the local user only! And this only pins the registry, which is | |
# only used by flakes, it just happens that the DeterminateSystems nix | |
# installer also sets extra-nix-path = nixpkgs=flake:nixpkgs, which makes | |
# nix-build pick up on this, too. | |
run: | | |
nix registry add nixpkgs "github:NixOS/nixpkgs/${{ matrix.config.channel }}" | |
# This avoids having to fetch an older nixpkgs just for tests and it helps | |
# detect problems early. | |
- name: Update flake locks to use this cl-nix-lite and nixpkgs | |
# This used to override cl-nix-lite to “../../..”, which is simple, | |
# obvious and works locally. Github Actions hates those things, and it | |
# finds in the filesystem is a fantastic opportunity to waste your time. | |
# They do lord knows what here with shallow checkouts or not or whatever, | |
# I have no idea, I don’t care, shut up. Locking to the revision and | |
# re-fetching this from remote is the easiest thing to do. | |
run: | | |
for example in examples/flakes/* ; do | |
( | |
cd "$example" | |
nix flake lock \ | |
--override-input cl-nix-lite "github:${{ github.repository }}/${{ github.sha }}" \ | |
--override-input nixpkgs nixpkgs | |
) | |
done | |
# Only bother actually building derivations that are not yet in the | |
# store. This prevents nix-build from downloading all built binaries from | |
# the store only to discard them immediately afterwards. | |
- name: All examples | |
# Inspired by | |
# https://github.com/divnix/std-action/blob/5ead0a37047d44137f950247ee4d3e26fda291d7/run/build-uncached-extractor.sed | |
# Works on both BSD (Darwin) and GNU sed. Prints every store path | |
# following “.. will be built:”. | |
run: | | |
set -euo pipefail | |
cd examples && \ | |
nix-build --no-out-link --dry-run 2>&1 | \ | |
tee nix-build.out | \ | |
sed -ne '/will be built:$/ { | |
# label | |
:b | |
# next line | |
n | |
# If the line is indented, it’s a store path | |
/^ /{ | |
# Print it | |
p | |
# goto label b | |
bb | |
} | |
}' | \ | |
sed -e 's/$/^*/' | \ | |
xargs -r nix build --keep-going --print-build-logs --no-link | |
- name: nix-build error output | |
if: failure() | |
run: "cat examples/nix-build.out" | |
nocommit: | |
runs-on: ubuntu-latest | |
steps: | |
- uses: actions/checkout@v4 | |
- uses: nobssoftware/nocommit@v1 | |
name: nocommit |