nixpkgs-check-by-name: make all github-driven checks locally reproducible #266937
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@@ -21,34 +21,9 @@ jobs: | |
| env: | ||
| GH_TOKEN: ${{ github.token }} | ||
| run: | | ||
| env | ||
| set -x | ||
| exec pkgs/test/nixpkgs-check-by-name/workflows/check-by-name/check-mergeability.sh | ||
| - uses: actions/checkout@v4 | ||
| with: | ||
| # pull_request_target checks out the base branch by default | ||
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@@ -57,117 +32,27 @@ jobs: | |
| fetch-depth: 2 | ||
| - name: Determining PR git hashes | ||
| run: | | ||
| env | ||
| set -x | ||
| exec pkgs/test/nixpkgs-check-by-name/workflows/check-by-name/determine-pr-hashes.sh | ||
|
There was a problem hiding this comment. This should also stay, it's GitHub-specific. Locally it's rarely the case to have a merge commit with the right parent commits. |
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| - uses: cachix/install-nix-action@v23 | ||
| - name: Determining channel to use for dependencies | ||
| run: | | ||
| env | ||
| set -x | ||
| exec pkgs/test/nixpkgs-check-by-name/workflows/check-by-name/determine-channel-for-dependencies.sh | ||
|
There was a problem hiding this comment. It's not great how there's all of these separate files. The main reason these steps are split up so that it's easier to see where time is spent (e.g. see https://github.com/NixOS/nixpkgs/actions/runs/6844035438/job/18607346212). But that's not very important, I'd rather have this and all steps after as a single script. Also we shouldn't make I also don't think |
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| - name: Fetching latest version of channel | ||
| run: | | ||
| env | ||
| set -x | ||
| exec pkgs/test/nixpkgs-check-by-name/workflows/check-by-name/fetch-latest-version-of-channel.sh | ||
| - name: Fetching pre-built nixpkgs-check-by-name from the channel | ||
| run: | | ||
| env | ||
| set -x | ||
| exec pkgs/test/nixpkgs-check-by-name/workflows/check-by-name/fetch-pre-built-by-name-from-channel.sh | ||
| - name: Running nixpkgs-check-by-name | ||
| run: | | ||
| env | ||
| set -x | ||
| exec pkgs/test/nixpkgs-check-by-name/workflows/check-by-name/run-nixpkgs-check-by-name.sh | ||
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| @@ -0,0 +1,30 @@ | ||
| #!/usr/bin/env bash | ||
| # This checks for mergeability of a pull request as recommended in | ||
| # https://docs.github.com/en/rest/guides/using-the-rest-api-to-interact-with-your-git-database?apiVersion=2022-11-28#checking-mergeability-of-pull-requests | ||
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| while true; do | ||
| echo "Checking whether the pull request can be merged" | ||
| prInfo=$(gh api \ | ||
| -H "Accept: application/vnd.github+json" \ | ||
| -H "X-GitHub-Api-Version: 2022-11-28" \ | ||
| /repos/"$GITHUB_REPOSITORY"/pulls/${{ github.event.pull_request.number }}) | ||
| mergeable=$(jq -r .mergeable <<< "$prInfo") | ||
| mergedSha=$(jq -r .merge_commit_sha <<< "$prInfo") | ||
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| if [[ "$mergeable" == "null" ]]; then | ||
| # null indicates that GitHub is still computing whether it's mergeable | ||
| # Wait a couple seconds before trying again | ||
| echo "GitHub is still computing whether this PR can be merged, waiting 5 seconds before trying again" | ||
| sleep 5 | ||
| else | ||
| break | ||
| fi | ||
| done | ||
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| if [[ "$mergeable" == "true" ]]; then | ||
| echo "The PR can be merged, checking the merge commit $mergedSha" | ||
| else | ||
| echo "The PR cannot be merged, it has a merge conflict" | ||
| exit 1 | ||
| fi | ||
| echo "mergedSha=$mergedSha" >> "$GITHUB_ENV" |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,12 @@ | ||
| #!/usr/bin/env bash | ||
| echo "Determining which channel to use for PR base branch $GITHUB_BASE_REF" | ||
| if [[ "$GITHUB_BASE_REF" =~ ^(release|staging|staging-next)-([0-9][0-9]\.[0-9][0-9])$ ]]; then | ||
| # Use the release channel for all PRs to release-XX.YY, staging-XX.YY and staging-next-XX.YY | ||
| channel=nixos-${BASH_REMATCH[2]} | ||
| echo "PR is for a release branch, using release channel $channel" | ||
| else | ||
| # Use the nixos-unstable channel for all other PRs | ||
| channel=nixos-unstable | ||
| echo "PR is for a non-release branch, using unstable channel $channel" | ||
| fi | ||
| echo "channel=$channel" >> "$GITHUB_ENV" |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,5 @@ | ||
| #!/usr/bin/env bash | ||
| # For pull_request_target this is the same as $GITHUB_SHA | ||
| echo "baseSha=$(git rev-parse HEAD^1)" >> "$GITHUB_ENV" | ||
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| echo "headSha=$(git rev-parse HEAD^2)" >> "$GITHUB_ENV" |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,9 @@ | ||
| #!/usr/bin/env bash | ||
| echo "Fetching latest version of channel $channel" | ||
| # This is probably the easiest way to get Nix to output the path to a downloaded channel! | ||
| nixpkgs=$(nix-instantiate --find-file nixpkgs -I nixpkgs=channel:"$channel") | ||
| # This file only exists in channels | ||
| rev=$(<"$nixpkgs"/.git-revision) | ||
| echo "Channel $channel is at revision $rev" | ||
| echo "nixpkgs=$nixpkgs" >> "$GITHUB_ENV" | ||
| echo "rev=$rev" >> "$GITHUB_ENV" |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,4 @@ | ||
| #!/usr/bin/env bash | ||
| echo "Fetching pre-built nixpkgs-check-by-name from channel $channel at revision $rev" | ||
| # Passing --max-jobs 0 makes sure that we won't build anything | ||
| nix-build "$nixpkgs" -A tests.nixpkgs-check-by-name --max-jobs 0 |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,79 @@ | ||
| #!/usr/bin/env bash | ||
| echo "Checking whether the check succeeds on the base branch $GITHUB_BASE_REF" | ||
| git checkout -q "$baseSha" | ||
| if baseOutput=$(result/bin/nixpkgs-check-by-name . 2>&1); then | ||
| baseSuccess=1 | ||
| else | ||
| baseSuccess= | ||
| fi | ||
| printf "%s\n" "$baseOutput" | ||
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| echo "Checking whether the check would succeed after merging this pull request" | ||
| git checkout -q "$mergedSha" | ||
| if mergedOutput=$(result/bin/nixpkgs-check-by-name . 2>&1); then | ||
| mergedSuccess=1 | ||
| exitCode=0 | ||
| else | ||
| mergedSuccess= | ||
| exitCode=1 | ||
| fi | ||
| printf "%s\n" "$mergedOutput" | ||
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| resultToEmoji() { | ||
| if [[ -n "$1" ]]; then | ||
| echo ":heavy_check_mark:" | ||
| else | ||
| echo ":x:" | ||
| fi | ||
| } | ||
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| # Print a markdown summary in GitHub actions | ||
| { | ||
| echo "| Nixpkgs version | Check result |" | ||
| echo "| --- | --- |" | ||
| echo "| Latest base commit | $(resultToEmoji "$baseSuccess") |" | ||
| echo "| After merging this PR | $(resultToEmoji "$mergedSuccess") |" | ||
| echo "" | ||
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| if [[ -n "$baseSuccess" ]]; then | ||
| if [[ -n "$mergedSuccess" ]]; then | ||
| echo "The check succeeds on both the base branch and after merging this PR" | ||
| else | ||
| echo "The check succeeds on the base branch, but would fail after merging this PR:" | ||
| echo "\`\`\`" | ||
| echo "$mergedOutput" | ||
| echo "\`\`\`" | ||
| echo "" | ||
| fi | ||
| else | ||
| if [[ -n "$mergedSuccess" ]]; then | ||
| echo "The check fails on the base branch, but this PR fixes it, nicely done!" | ||
| else | ||
| echo "The check fails on both the base branch and after merging this PR, unknown if only this PRs changes would satisfy the check, the base branch needs to be fixed first." | ||
| echo "" | ||
| echo "Failure on the base branch:" | ||
| echo "\`\`\`" | ||
| echo "$baseOutput" | ||
| echo "\`\`\`" | ||
| echo "" | ||
| echo "Failure after merging this PR:" | ||
| echo "\`\`\`" | ||
| echo "$mergedOutput" | ||
| echo "\`\`\`" | ||
| echo "" | ||
| fi | ||
| fi | ||
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| echo "### Details" | ||
| echo "- nixpkgs-check-by-name tool:" | ||
| echo " - Channel: $channel" | ||
| echo " - Nixpkgs commit: [$rev](https://github.com/${GITHUB_REPOSITORY}/commit/$rev)" | ||
| echo " - Store path: \`$(realpath result)\`" | ||
| echo "- Tested Nixpkgs:" | ||
| echo " - Base branch: $GITHUB_BASE_REF" | ||
| echo " - Latest base branch commit: [$baseSha](https://github.com/${GITHUB_REPOSITORY}/commit/$baseSha)" | ||
| echo " - Latest PR commit: [$headSha](https://github.com/${GITHUB_REPOSITORY}/commit/$headSha)" | ||
| echo " - Merge commit: [$mergedSha](https://github.com/${GITHUB_REPOSITORY}/commit/$mergedSha)" | ||
| } >> "$GITHUB_STEP_SUMMARY" | ||
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| exit "$exitCode" |
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This is very GitHub Actions specific. Locally you'd want to test your current working tree, not the PR's HEAD, so this should stay here.