ci: Migrate metamaskbot PR comment

Migrate the `metamaskbot` PR comment from CircleCI to GitHub Actions.
CircleCI is still used for artifact storage for linked artifacts.

Relates to #28572

These changes were extracted from #29256

.github/workflows/main.yml

@@ -36,6 +36,15 @@ jobs:
     name: Wait for CircleCI workflow status
     uses: ./.github/workflows/wait-for-circleci-workflow-status.yml
 
+  publish-prerelease:
+    name: Publish prerelease
+    if: ${{ github.event_name == 'pull_request' }}
+    needs:
+      - wait-for-circleci-workflow-status
+    uses: ./.github/workflows/publish-prerelease.yml
+    secrets:
+      PR_COMMENT_TOKEN: ${{ secrets.PR_COMMENT_TOKEN }}
+
   all-jobs-completed:
     name: All jobs completed
     runs-on: ubuntu-latest

.github/workflows/publish-prerelease.yml

@@ -0,0 +1,73 @@
+name: Publish prerelease
+
+on:
+  workflow_call:
+    secrets:
+      PR_COMMENT_TOKEN:
+        required: true
+
+jobs:
+  publish-prerelease:
+    name: Publish prerelease
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Setup environment
+        uses: metamask/github-tools/.github/actions/setup-environment@main
+
+      - name: Get merge base commit hash
+        id: get-merge-base
+        env:
+          BASE_REF: ${{ github.event.pull_request.base.ref }}
+        run: |
+          merge_base="$(git merge-base "origin/${BASE_REF}" HEAD)"
+          echo "Merge base is '${merge_base}'"
+          echo "MERGE_BASE=${merge_base}" >> "$GITHUB_OUTPUT"
+
+      - name: Get CircleCI job details
+        id: get-circleci-job-details
+        env:
+          REPOSITORY: ${{ github.repository }}
+          BRANCH: ${{ github.head_ref }}
+          HEAD_COMMIT_HASH: ${{ github.event.pull_request.head.sha }}
+        run: |
+          pipeline_id=$(curl --silent "https://circleci.com/api/v2/project/gh/$OWNER/$REPOSITORY/pipeline?branch=$BRANCH" | jq -r ".items | map(select(.vcs.revision == \"${HEAD_COMMIT_HASH}\" )) | first | .id")
+          workflow_id=$(curl --silent "https://circleci.com/api/v2/pipeline/$pipeline_id/workflow" | jq -r ".items[0].id")
+          job_details=$(curl --silent "https://circleci.com/api/v2/workflow/$workflow_id/job" | jq -r '.items[] | select(.name == "job-publish-prerelease")')
+          build_num=$(echo "$job_details" | jq -r '.job_number')
+
+          echo 'CIRCLE_BUILD_NUM='"$build_num" >> "$GITHUB_OUTPUT"
+          job_id=$(echo "$job_details" | jq -r '.id')
+          echo 'CIRCLE_WORKFLOW_JOB_ID='"$job_id" >> "$GITHUB_OUTPUT"
+
+          echo "Getting artifacts from pipeline '${pipeline_id}', workflow '${workflow_id}', build number '${build_num}', job ID '${job_id}'"
+
+      - name: Get CircleCI job artifacts
+        env:
+          CIRCLE_WORKFLOW_JOB_ID: ${{ steps.get-circleci-job-details.outputs.CIRCLE_WORKFLOW_JOB_ID }}
+        run: |
+          for platform in chrome firefox; do
+            pageload=$(curl --silent --location "https://output.circle-artifacts.com/output/job/${CIRCLE_WORKFLOW_JOB_ID}/artifacts/0/test-artifacts/${platform}/benchmark/pageload.json")
+            mkdir -p "test-artifacts/${platform}/benchmark"
+            echo "${pageload}" > "test-artifacts/${platform}/benchmark/pageload.json"
+          done
+
+          bundle_size=$(curl --silent --location "https://output.circle-artifacts.com/output/job/${CIRCLE_WORKFLOW_JOB_ID}/artifacts/0/test-artifacts/chrome/bundle_size.json")
+          mkdir -p "test-artifacts/chrome"
+          echo "${bundle_size}" > "test-artifacts/chrome/bundle_size.json"
+
+          stories=$(curl --silent --location "https://output.circle-artifacts.com/output/job/${CIRCLE_WORKFLOW_JOB_ID}/artifacts/0/storybook/stories.json")
+          mkdir "storybook-build"
+          echo "${stories}" > "storybook-build/stories.json"
+
+      - name: Publish prerelease
+        env:
+          PR_COMMENT_TOKEN: ${{ secrets.PR_COMMENT_TOKEN }}
+          CIRCLE_BUILD_NUM: ${{ steps.get-circleci-job-details.outputs.CIRCLE_BUILD_NUM }}
+          CIRCLE_WORKFLOW_JOB_ID: ${{ steps.get-circleci-job-details.outputs.CIRCLE_WORKFLOW_JOB_ID }}
+          PR_NUMBER: ${{ github.event.pull_request.number }}
+          HEAD_COMMIT_HASH: ${{ github.event.pull_request.head.sha }}
+          MERGE_BASE_COMMIT_HASH: ${{ steps.get-merge-base.outputs.MERGE_BASE }}
+        run: ./development/metamaskbot-build-announce.js

development/metamaskbot-build-announce.js

@@ -40,27 +40,26 @@ function getPercentageChange(from, to) {
 
 async function start() {
   const {
-    GITHUB_COMMENT_TOKEN,
-    CIRCLE_PULL_REQUEST,
-    CIRCLE_SHA1,
+    PR_COMMENT_TOKEN,
+    PR_NUMBER,
+    HEAD_COMMIT_HASH,
+    MERGE_BASE_COMMIT_HASH,
     CIRCLE_BUILD_NUM,
     CIRCLE_WORKFLOW_JOB_ID,
-    PARENT_COMMIT,
   } = process.env;
 
-  console.log('CIRCLE_PULL_REQUEST', CIRCLE_PULL_REQUEST);
-  console.log('CIRCLE_SHA1', CIRCLE_SHA1);
+  console.log('PR_NUMBER', PR_NUMBER);
+  console.log('HEAD_COMMIT_HASH', HEAD_COMMIT_HASH);
+  console.log('MERGE_BASE_COMMIT_HASH', MERGE_BASE_COMMIT_HASH);
   console.log('CIRCLE_BUILD_NUM', CIRCLE_BUILD_NUM);
   console.log('CIRCLE_WORKFLOW_JOB_ID', CIRCLE_WORKFLOW_JOB_ID);
-  console.log('PARENT_COMMIT', PARENT_COMMIT);
 
-  if (!CIRCLE_PULL_REQUEST) {
-    console.warn(`No pull request detected for commit "${CIRCLE_SHA1}"`);
+  if (!PR_NUMBER) {
+    console.warn(`No pull request detected for commit "${HEAD_COMMIT_HASH}"`);
     return;
   }
 
-  const CIRCLE_PR_NUMBER = CIRCLE_PULL_REQUEST.split('/').pop();
-  const SHORT_SHA1 = CIRCLE_SHA1.slice(0, 7);
+  const SHORT_SHA1 = HEAD_COMMIT_HASH.slice(0, 7);
   const BUILD_LINK_BASE = `https://output.circle-artifacts.com/output/job/${CIRCLE_WORKFLOW_JOB_ID}/artifacts/0`;
   // build the github comment content
 
@@ -328,7 +327,7 @@ async function start() {
     };
 
     const devSizes = Object.keys(prSizes).reduce((sizes, part) => {
-      sizes[part] = devBundleSizeStats[PARENT_COMMIT][part] || 0;
+      sizes[part] = devBundleSizeStats[MERGE_BASE_COMMIT_HASH][part] || 0;
       return sizes;
     }, {});
 
@@ -379,7 +378,7 @@ async function start() {
   }
 
   const JSON_PAYLOAD = JSON.stringify({ body: commentBody });
-  const POST_COMMENT_URI = `https://api.github.com/repos/metamask/metamask-extension/issues/${CIRCLE_PR_NUMBER}/comments`;
+  const POST_COMMENT_URI = `https://api.github.com/repos/metamask/metamask-extension/issues/${PR_NUMBER}/comments`;
   console.log(`Announcement:\n${commentBody}`);
   console.log(`Posting to: ${POST_COMMENT_URI}`);
 
@@ -388,7 +387,7 @@ async function start() {
     body: JSON_PAYLOAD,
     headers: {
       'User-Agent': 'metamaskbot',
-      Authorization: `token ${GITHUB_COMMENT_TOKEN}`,
+      Authorization: `token ${PR_COMMENT_TOKEN}`,
     },
   });
   if (!response.ok) {