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ci: fetch PR ref explicitly to extract commit message for forks (#9756)

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This commit is contained in:
Powei Feng
2026-03-03 09:24:00 -08:00
committed by GitHub
parent e975572972
commit 5ac5dc4c95
1 changed files with 17 additions and 15 deletions
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32
.github/actions/get-commit-msg/action.yml vendored
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@@ -27,17 +27,24 @@ runs:
echo "$HASH" > /tmp/commit_hash.txt
- name: Find commit message (PR)
shell: bash
id: checkout_code
if: github.event_name == 'pull_request'
run: |
BEFORE_HASH=$(git rev-parse HEAD)
echo "hash=$BEFORE_HASH" >> "$GITHUB_OUTPUT"
# Next we will checkout the actual head (not the merge commits) of the PR
AFTER_HASH="${{ github.event.pull_request.head.sha }}"
git checkout $AFTER_HASH
COMMIT_MESSAGE=$(git log -1 --no-merges)
echo "$COMMIT_MESSAGE" > /tmp/commit_msg.txt
echo "$AFTER_HASH" > /tmp/commit_hash.txt
PR_NUMBER="${{ github.event.pull_request.number }}"
# Fetch the head of the PR explicitly to handle forks. Depth 50 ensures we can traverse past recent merge commits.
git fetch --depth=50 origin "pull/$PR_NUMBER/head:pr-head"
COMMIT_HASH=$(git log -1 --no-merges pr-head --format=%H)
AUTHOR_NAME=$(git log -1 --no-merges pr-head --format=%an)
AUTHOR_EMAIL=$(git log -1 --no-merges pr-head --format=%ae)
TSTAMP=$(git log -1 --no-merges pr-head --format=%aI)
COMMIT_MESSAGE=$(git log -1 --no-merges pr-head --format=%B)
echo "commit $COMMIT_HASH" > /tmp/commit_msg.txt
echo "Author: ${AUTHOR_NAME}<${AUTHOR_EMAIL}>" >> /tmp/commit_msg.txt
echo "Date: ${TSTAMP}" >> /tmp/commit_msg.txt
echo "" >> /tmp/commit_msg.txt
echo "$COMMIT_MESSAGE" >> /tmp/commit_msg.txt
echo "$COMMIT_HASH" > /tmp/commit_hash.txt
- shell: bash
id: action_output
run: |
@@ -47,9 +54,4 @@ runs:
cat /tmp/commit_msg.txt >> "$GITHUB_OUTPUT"
echo "$DELIMITER" >> "$GITHUB_OUTPUT"
# Get the commit hash
echo "hash=$(cat /tmp/commit_hash.txt)" >> "$GITHUB_OUTPUT"
- name: Cleanup Find commit message (PR)
shell: bash
if: github.event_name == 'pull_request'
run: |
git checkout ${{ steps.checkout_code.outputs.hash }}
echo "hash=$(cat /tmp/commit_hash.txt)" >> "$GITHUB_OUTPUT"