Comment on forked pull request #260
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name: Comment on forked pull request | |
on: | |
workflow_run: | |
# This job only runs from the main branch. You won't see any change until it's merged to main. | |
# To test this job, you can temporarily change it to `pull_request` and hardcode the run_id and pr_number | |
workflows: ['Perf'] | |
types: [completed] | |
jobs: | |
pr_comment: | |
if: github.event.workflow_run.event == 'pull_request' && github.event.workflow_run.conclusion == 'success' && github.event.workflow_run.head_repository.full_name != github.event.workflow_run.repository.full_name | |
runs-on: ubuntu-latest | |
steps: | |
- name: get artifact url | |
uses: actions/github-script@v6 | |
id: url | |
with: | |
result-encoding: string | |
script: | | |
const ARTIFACT_NAME = 'reports'; | |
const {owner, repo} = context.repo; | |
const run_id = ${{github.event.workflow_run.id}}; | |
const artifacts = await github.paginate( | |
github.rest.actions.listWorkflowRunArtifacts, {owner, repo, run_id}); | |
const art = artifacts.find(e => e.name === ARTIFACT_NAME); | |
if (!art) { | |
return core.error(`No artifact '${ARTIFACT_NAME}' found`); | |
} | |
console.log(art); | |
return art.archive_download_url; | |
- name: download artifact | |
env: | |
GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}" | |
run: | | |
set -eu | |
# A useful wrapper around CURL | |
crl() { | |
curl --silent --show-error --location --retry 1 "${@:2}" \ | |
-H "Accept: application/vnd.github.antiope-preview+json, application/vnd.github.v3+json" \ | |
"$1" | |
} | |
auth_crl() { | |
crl "$1" -H "authorization: Bearer $GITHUB_TOKEN" "${@:2}" | |
} | |
auth_crl "${{ steps.url.outputs.result }}" > a.zip | |
unzip a.zip | |
cat DIFF.md | base64 > DIFF.md.base64 | |
cat TABLE.md | base64 > TABLE.md.base64 | |
- name: Read table | |
id: perf | |
uses: juliangruber/read-file-action@v1 | |
with: | |
path: ./TABLE.md.base64 | |
- name: Read diff | |
id: diff | |
uses: juliangruber/read-file-action@v1 | |
with: | |
path: ./DIFF.md.base64 | |
- name: Read PR number | |
id: pr_num | |
uses: juliangruber/read-file-action@v1 | |
with: | |
path: ./pr_num.txt | |
- uses: actions/github-script@v6 | |
with: | |
# This snippet is public-domain, taken from | |
# https://github.com/oprypin/nightly.link/blob/master/.github/workflows/pr-comment.yml | |
script: | | |
async function upsertComment(owner, repo, issue_number, purpose, body) { | |
const {data: comments} = await github.rest.issues.listComments( | |
{owner, repo, issue_number}); | |
const marker = `<!-- bot: ${purpose} -->`; | |
body = marker + "\n" + body; | |
const existing = comments.filter((c) => c.body.includes(marker)); | |
if (existing.length > 0) { | |
const last = existing[existing.length - 1]; | |
core.info(`Updating comment ${last.id}`); | |
await github.rest.issues.updateComment({ | |
owner, repo, | |
body, | |
comment_id: last.id, | |
}); | |
} else { | |
core.info(`Creating a comment in issue / PR #${issue_number}`); | |
await github.rest.issues.createComment({issue_number, body, owner, repo}); | |
} | |
} | |
function base64ToUTF8(input) { | |
const base64 = input.replace(/\r?\n|\r/g, ""); | |
const text = atob(base64); | |
const length = text.length; | |
const bytes = new Uint8Array(length); | |
for (let i = 0; i < length; i++) { | |
bytes[i] = text.charCodeAt(i); | |
} | |
const decoder = new TextDecoder(); | |
return decoder.decode(bytes); | |
} | |
const {owner, repo} = context.repo; | |
const diff = base64ToUTF8(`${{ steps.diff.outputs.content }}`); | |
const perf = base64ToUTF8(`${{ steps.perf.outputs.content }}`); | |
const pr = ${{ steps.pr_num.outputs.content }}; | |
await upsertComment(owner, repo, pr, "diff", diff); | |
await upsertComment(owner, repo, pr, "perf", perf); | |