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# Workflow that runs after a merge to master, analyses changes in test executions
# and posts the result to the merged PR.
name: Post merge analysis
on:
push:
branches:
- master
jobs:
analysis:
runs-on: ubuntu-24.04
if: github.repository == 'rust-lang/rust'
permissions:
pull-requests: write
steps:
- uses: actions/checkout@v4
with:
# Make sure that we have enough commits to find the parent merge commit.
# Since all merges should be through merge commits, fetching two commits
# should be enough to get the parent bors merge commit.
fetch-depth: 2
- name: Perform analysis and send PR
env:
GH_TOKEN: ${{ github.token }}
run: |
# Get closest bors merge commit
PARENT_COMMIT=`git rev-list --author='bors <bors@rust-lang.org>' -n1 --first-parent HEAD^1`
echo "Parent: ${PARENT_COMMIT}"
# Find PR for the current commit
HEAD_PR=`gh pr list --search "${{ github.sha }}" --state merged --json number --jq '.[0].number'`
echo "HEAD: ${{ github.sha }} (#${HEAD_PR})"
cd src/ci/citool
printf "*This is an experimental post-merge analysis report. You can ignore it.*\n\n" > output.log
printf "<details>\n<summary>Post-merge report</summary>\n\n" >> output.log
cargo run --release post-merge-report ${PARENT_COMMIT} ${{ github.sha }} >> output.log
printf "</details>\n" >> output.log
cat output.log
gh pr comment ${HEAD_PR} -F output.log
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