Handy/.github/workflows/nix-check.yml

127 lines
5.1 KiB
YAML

# Nix CI — two tiers:
#
# 1. Quick checks (bun.nix sync, flake eval) run on ANY source change
# so compilation-breaking edits are caught by flake eval.
# 2. Full nix build (~25 min) only runs when nix packaging files change.
#
# Setting up a Cachix binary cache would further reduce full-build times.
name: "nix build check"
on:
workflow_dispatch:
push:
branches: [main]
paths:
- "flake.nix"
- "flake.lock"
- ".nix/**"
- "bun.lock"
- "src-tauri/**"
- "src/**"
- ".github/workflows/**"
pull_request:
paths:
- "flake.nix"
- "flake.lock"
- ".nix/**"
- "bun.lock"
- "src-tauri/**"
- "src/**"
- ".github/workflows/**"
concurrency:
group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
cancel-in-progress: true
jobs:
nix-build:
runs-on: ubuntu-24.04
continue-on-error: false
steps:
- uses: actions/checkout@v4
- uses: oven-sh/setup-bun@v2
with:
bun-version: latest
- uses: cachix/install-nix-action@v30
with:
nix_path: nixpkgs=channel:nixos-unstable
- uses: DeterminateSystems/magic-nix-cache-action@565684385bcd71bad329742eefe8d12f2e765b39 # v13
# Regenerate .nix/bun.nix from bun.lock and check if it matches
# what's committed. A diff means the developer forgot to run
# bun scripts/check-nix-deps.ts or bun install (which triggers it).
- name: Check bun.nix is up to date
id: bun-check
run: |
bunx bun2nix -o .nix/bun.nix
if ! git diff --quiet .nix/bun.nix; then
echo "outdated=true" >> "$GITHUB_OUTPUT"
fi
- name: Hint on outdated bun.nix
if: steps.bun-check.outputs.outdated == 'true'
run: |
echo ""
echo "::warning::.nix/bun.nix is out of sync with bun.lock"
echo ""
echo "┌──────────────────────────────────────────────────────────────┐"
echo "│ .nix/bun.nix is outdated. To fix, run: │"
echo "│ │"
echo "│ bun scripts/check-nix-deps.ts │"
echo "│ │"
echo "│ Or simply run 'bun install' — the postinstall hook will │"
echo "│ regenerate it automatically. Commit the resulting changes. │"
echo "└──────────────────────────────────────────────────────────────┘"
echo ""
echo "Diff:"
git diff .nix/bun.nix
exit 1
# Evaluate the flake to catch issues with cargo git dependency hashes,
# missing inputs, or other Nix expression errors.
# Skip if bun.nix is already outdated — nix eval would fail with a
# cryptic error, and the bun-check step already printed a clear message.
- name: Check flake evaluation
if: steps.bun-check.outputs.outdated != 'true'
id: eval
run: |
if ! nix eval .#packages.x86_64-linux.handy.drvPath 2>eval_err.log; then
echo "failed=true" >> "$GITHUB_OUTPUT"
cat eval_err.log
fi
- name: Hint on evaluation failure
if: steps.eval.outputs.failed == 'true'
run: |
echo ""
echo "::warning::flake.nix evaluation failed"
echo ""
cat eval_err.log
exit 1
# Detect whether nix packaging files changed — if only source code
# changed, the quick checks above are sufficient.
# Skipped on workflow_dispatch (no base ref) — full build runs instead.
- name: Check if nix files changed
if: github.event_name == 'pull_request'
id: nix-files
env:
GH_TOKEN: ${{ github.token }}
run: |
if gh api repos/${{ github.repository }}/pulls/${{ github.event.pull_request.number }}/files \
--paginate --jq '.[].filename' | \
grep -qE '^(flake\.(nix|lock)|\.nix/|bun\.lock|src-tauri/(Cargo\.(toml|lock)|tauri\.conf\.json|build\.rs))'; then
echo "changed=true" >> "$GITHUB_OUTPUT"
fi
# Full build — catches runtime build errors (broken dependencies,
# sandbox issues, compilation failures) that flake eval alone misses.
# On PRs: only runs when nix packaging files change (~25 min with cold cache).
# On push to main and workflow_dispatch: always runs so every commit on
# main has a verified nix build before release.
- name: Build handy
if: steps.bun-check.outputs.outdated != 'true' && steps.eval.outputs.failed != 'true' && (steps.nix-files.outputs.changed == 'true' || github.event_name == 'workflow_dispatch' || github.event_name == 'push')
run: nix build .#handy -L --show-trace