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Post benchmark comment #36

Post benchmark comment

Post benchmark comment #36

name: Post benchmark comment
on:
workflow_run:
workflows: ["build"]
types: [completed]
permissions:
issues: write
pull-requests: write
jobs:
post-comment:
if: github.event.workflow_run.event == 'pull_request'
runs-on: ubuntu-latest
steps:
- name: Download comparison artifact
uses: actions/github-script@v7
with:
script: |
const fs = require('fs');
const artifacts = await github.rest.actions.listWorkflowRunArtifacts({
owner: context.repo.owner,
repo: context.repo.repo,
run_id: context.payload.workflow_run.id,
});
const match = artifacts.data.artifacts.find(a => a.name === 'benchmark-comparison');
if (!match) {
core.info('No benchmark-comparison artifact; nothing to post.');
return;
}
const download = await github.rest.actions.downloadArtifact({
owner: context.repo.owner,
repo: context.repo.repo,
artifact_id: match.id,
archive_format: 'zip',
});
fs.writeFileSync('artifact.zip', Buffer.from(download.data));
core.exportVariable('HAS_ARTIFACT', '1');
- name: Unzip
if: env.HAS_ARTIFACT == '1'
run: unzip -o artifact.zip
- name: Post comment
if: env.HAS_ARTIFACT == '1'
uses: actions/github-script@v7
with:
script: |
const fs = require('fs');
const output = fs.readFileSync('comparison.txt', 'utf8');
const pr_number = parseInt(fs.readFileSync('pr_number.txt', 'utf8').trim(), 10);
if (!Number.isFinite(pr_number)) {
core.setFailed('Could not parse PR number from artifact.');
return;
}
const marker = '<!-- benchmark-bot -->';
const body = `${marker}\n## Benchmark Results\n\`\`\`\n${output.trimEnd()}\n\`\`\``;
const { data: comments } = await github.rest.issues.listComments({
owner: context.repo.owner, repo: context.repo.repo,
issue_number: pr_number,
});
const existing = comments.find(c => c.body.startsWith(marker));
if (existing) {
await github.rest.issues.updateComment({
owner: context.repo.owner, repo: context.repo.repo,
comment_id: existing.id, body,
});
} else {
await github.rest.issues.createComment({
owner: context.repo.owner, repo: context.repo.repo,
issue_number: pr_number, body,
});
}