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ci: auto-update nix hashes on PRs #182

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Merged
cachebag merged 1 commit into from
Jan 18, 2026
Merged

ci: auto-update nix hashes on PRs #182

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28 changes: 28 additions & 0 deletions .github/workflows/nix.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -8,11 +8,39 @@ on:
jobs:
build:
runs-on: ubuntu-latest
permissions:
id-token: read
contents: write
steps:
- uses: actions/checkout@v6

- uses: DeterminateSystems/determinate-nix-action@v3

- uses: DeterminateSystems/flakehub-cache-action@main

- name: Install Nix
uses: cachix/install-nix-action@v31

- name: Fix hash mismatches
if: failure() && github.event_name == 'pull_request'
id: fix-hashes
run: |
git stash --include-untracked
git fetch --depth=1 origin "$GITHUB_HEAD_REF"
git checkout -B "$GITHUB_HEAD_REF" "${{ github.event.pull_request.head.sha }}"

determinate-nixd fix hashes --auto-apply

if ! git diff --quiet; then
git config user.name "github-actions[bot]"
git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
git add --update --ignore-removal .
git commit -m "[dependabot skip] Automatically fix Nix hashes"
git push origin "$GITHUB_HEAD_REF"
fi

git checkout -
git stash pop || true

- name: Build package
run: nix build -f default.nix
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