90 lines
3.5 KiB
YAML
90 lines
3.5 KiB
YAML
# Github variable github.event.pull_request.base.sha will always return the commit sha of the base branch.
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# But the base branch can change after the PR was opened.
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# So if we have a PR based on `dev~3` then `upstream/dev` has three more commits.
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# And github.event.pull_request.base.sha will return the sha of `dev`, not `dev~3`.
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#
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# This breaks CI scripts which need the actual base commit of the PR (`dev~3`).
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# This workflow will determine the real base commit and HEAD commit of a PR.
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#
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# Use it like that:
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#
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# ```
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# ...
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#
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# jobs:
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# real_pr_shas:
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# uses: riziorg/rizin/.github/workflows/get_real_pr_shas.yml@dev
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#
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# ...
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#
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# some_job:
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# runs-on: ubuntu-latest
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# needs: real_pr_shas
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# steps:
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# - name: Checkout repository
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# uses: actions/checkout@v6
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# with:
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# fetch-depth: 0 # Full history needed for commit scanning
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# ```
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#
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# Use `${{ needs.real_pr_shas.outputs.BASE_SHA }}` to get the real base sha.
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# Use `${{ needs.real_pr_shas.outputs.HEAD_SHA }}` to get the PR head commit sha.
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# Use `${{ needs.real_pr_shas.outputs.COMMIT_MSGS }}` to get the commit messages of git log --pretty=%B BASE_SHA..HEAD_SHA
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#
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# This workflow is copied from https://github.com/JensDll/should-run/blob/main/.github/workflows/main.yaml#L54
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#
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# Relevant discussions:
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# - https://github.com/actions/runner/issues/1689
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# - https://github.com/orgs/community/discussions/59677#discussioncomment-10808053
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name: Get real PR base and HEAD sha
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on:
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workflow_call:
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outputs:
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BASE_SHA:
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description: "The real PR commit base sha"
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value: ${{ jobs.get_real_pr_shas.outputs.output_base }}
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HEAD_SHA:
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description: "The real PR commit HEAD sha"
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value: ${{ jobs.get_real_pr_shas.outputs.output_head }}
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COMMIT_MSGS:
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description: "The commit messages of BASE_SHA..HEAD_SHA"
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value: ${{ jobs.get_real_pr_shas.outputs.output_msgs }}
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jobs:
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get_real_pr_shas:
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runs-on: ubuntu-latest
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outputs:
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output_base: ${{ steps.get_shas.outputs.BASE_SHA }}
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output_head: ${{ steps.get_shas.outputs.HEAD_SHA }}
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output_msgs: ${{ steps.get_shas.outputs.COMMIT_MSGS }}
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steps:
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- name: Checkout repository
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uses: actions/checkout@v6
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- id: get_shas
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run: |
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git fetch --no-tags --prune --no-recurse-submodules --depth=$((${{ github.event.pull_request.commits }} + 1)) origin ${{ github.event.pull_request.head.sha }}
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git fetch --no-tags --prune --no-recurse-submodules --depth=10 origin ${{ github.event.pull_request.base.sha }}
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git checkout --progress --force ${{ github.event.pull_request.head.sha }}
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while [[ -n $(git rev-list shallow ^${{ github.event.pull_request.base.sha }}) ]]
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do
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git fetch --no-tags --prune --no-recurse-submodules --deepen=10 origin ${{ github.event.pull_request.base.sha }}
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done
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BASE_SHA=$(git rev-list ${{ github.event.pull_request.head.sha }} ^${{ github.event.pull_request.base.sha }} | tail --lines 1 | xargs -I {} git rev-parse {}~1)
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HEAD_SHA=${{ github.event.pull_request.head.sha }}
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COMMIT_MSGS=$(git log --pretty=%B "$BASE_SHA".."$HEAD_SHA")
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if [[ $? -eq 128 ]]; then
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echo "Failed to get log"
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exit 2
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fi
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echo "BASE_SHA=$BASE_SHA"
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echo "HEAD_SHA=$HEAD_SHA"
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echo -e "COMMIT_MSGS:\n$COMMIT_MSGS"
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echo "BASE_SHA=$BASE_SHA" >> $GITHUB_OUTPUT
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echo "HEAD_SHA=$HEAD_SHA" >> $GITHUB_OUTPUT
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echo "COMMIT_MSGS=$COMMIT_MSGS" >> $GITHUB_OUTPUT
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