[wip] bundle stats

Author: avivkeller

.github/workflows/bundle-compare.yml

@@ -1,19 +1,9 @@
-# Security Notes
-# Only selected Actions are allowed within this repository. Please refer to (https://github.com/nodejs/nodejs.org/settings/actions)
-# for the full list of available actions. If you want to add a new one, please reach out a maintainer with Admin permissions.
-# REVIEWERS, please always double-check security practices before merging a PR that contains Workflow changes!!
-# AUTHORS, please only use actions with explicit SHA references, and avoid using `@master` or `@main` references or `@version` tags.
-
 name: Compare Bundle Size
 
 on:
-  # TMP, for testing
-  pull_request:
-
-defaults:
-  run:
-    # This ensures that the working directory is the root of the repository
-    working-directory: ./
+  workflow_run:
+    workflows: ["Build"]
+    types: [completed]
 
 permissions:
   contents: read
@@ -30,19 +20,69 @@ jobs:
         with:
           egress-policy: audit
 
-      - uses: dawidd6/action-download-artifact@ac66b43f0e6a346234dd65d4d0c8fbb31cb316e5 # v11
+      - name: Download PR artifact (head)
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
         with:
-          name: webpack-stats
-          path: head-stats
+          script: |
+            const fs = require('fs');
+            const path = require('path');
+
+            const artifacts = await github.rest.actions.listWorkflowRunArtifacts({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              run_id: context.payload.workflow_run.id,
+            });
+
+            const artifact = artifacts.data.artifacts.find(a => a.name === 'webpack-stats');
+            const download = await github.rest.actions.downloadArtifact({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              artifact_id: artifact.id,
+              archive_format: 'zip',
+            });
+
+            fs.mkdirSync('head-stats', { recursive: true });
+            fs.writeFileSync('head-stats/stats.zip', Buffer.from(download.data));
 
-      - uses: dawidd6/action-download-artifact@ac66b43f0e6a346234dd65d4d0c8fbb31cb316e5 # v11
+      - name: Download main branch artifact (base)
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
         with:
-          name: webpack-stats
-          commit: ${{ github.sha }}
-          path: base-stats
+          script: |
+            const fs = require('fs');
+
+            const runs = await github.rest.actions.listWorkflowRuns({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              workflow_id: context.payload.workflow_run.workflow_id,
+              branch: 'main',
+              status: 'completed',
+              per_page: 1,
+            });
+
+            const artifacts = await github.rest.actions.listWorkflowRunArtifacts({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              run_id: runs.data.workflow_runs[0].id,
+            });
+
+            const artifact = artifacts.data.artifacts.find(a => a.name === 'webpack-stats');
+            const download = await github.rest.actions.downloadArtifact({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              artifact_id: artifact.id,
+              archive_format: 'zip',
+            });
+
+            fs.mkdirSync('base-stats', { recursive: true });
+            fs.writeFileSync('base-stats/stats.zip', Buffer.from(download.data));
+
+      - name: Unzip artifacts
+        run: |
+          unzip -o head-stats/stats.zip -d head-stats
+          unzip -o base-stats/stats.zip -d base-stats
 
       - uses: github/webpack-bundlesize-compare-action@89161bb25577f08577ce053c3264c0e3b7d7558f # v2.1.0
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
-          current-stats-json-path: ./head-stats/stats.json
-          base-stats-json-path: ./base-stats/stats.json
+          current-stats-json-path: ./head-stats/webpack-stats.json
+          base-stats-json-path: ./base-stats/webpack-stats.json