54 lines
2.6 KiB
YAML
54 lines
2.6 KiB
YAML
# Checks pkgs/by-name (see pkgs/by-name/README.md)
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# using the nixpkgs-check-by-name tool (see pkgs/test/nixpkgs-check-by-name)
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name: Check pkgs/by-name
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# The pre-built tool is fetched from a channel,
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# making it work predictable on all PRs.
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on:
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# Using pull_request_target instead of pull_request avoids having to approve first time contributors
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pull_request_target
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# The tool doesn't need any permissions, it only outputs success or not based on the checkout
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permissions: {}
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jobs:
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check:
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# This is x86_64-linux, for which the tool is always prebuilt on the nixos-* channels,
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# as specified in nixos/release-combined.nix
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v4
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with:
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# pull_request_target checks out the base branch by default
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ref: refs/pull/${{ github.event.pull_request.number }}/merge
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- uses: cachix/install-nix-action@v23
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- name: Determining channel to use for dependencies
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run: |
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echo "Determining which channel to use for PR base branch $GITHUB_BASE_REF"
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if [[ "$GITHUB_BASE_REF" =~ ^(release|staging|staging-next)-([0-9][0-9]\.[0-9][0-9])$ ]]; then
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# Use the release channel for all PRs to release-XX.YY, staging-XX.YY and staging-next-XX.YY
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channel=nixos-${BASH_REMATCH[2]}
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echo "PR is for a release branch, using release channel $channel"
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else
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# Use the nixos-unstable channel for all other PRs
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channel=nixos-unstable
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echo "PR is for a non-release branch, using unstable channel $channel"
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fi
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echo "channel=$channel" >> "$GITHUB_ENV"
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- name: Fetching latest version of channel
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run: |
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echo "Fetching latest version of channel $channel"
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# This is probably the easiest way to get Nix to output the path to a downloaded channel!
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nixpkgs=$(nix-instantiate --find-file nixpkgs -I nixpkgs=channel:"$channel")
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# This file only exists in channels
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rev=$(<"$nixpkgs"/.git-revision)
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echo "Channel $channel is at revision $rev"
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echo "nixpkgs=$nixpkgs" >> "$GITHUB_ENV"
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echo "rev=$rev" >> "$GITHUB_ENV"
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- name: Fetching pre-built nixpkgs-check-by-name from the channel
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run: |
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echo "Fetching pre-built nixpkgs-check-by-name from channel $channel at revision $rev"
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# Passing --max-jobs 0 makes sure that we won't build anything
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nix-build "$nixpkgs" -A tests.nixpkgs-check-by-name --max-jobs 0
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- name: Running nixpkgs-check-by-name
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run: result/bin/nixpkgs-check-by-name .
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