Run iOS size test on CI through Bazel (#1122)

.github/workflows/ios-ci.yml

@@ -114,11 +114,13 @@ jobs:
           ccache --max-size=2G
           ccache --show-stats
 
-      - name: Install iOS packaging dependencies
-        run: |
-          ./platform/ios/scripts/install-packaging-dependencies.sh
+      - name: Save PR number
+        if: github.event_name == 'pull_request'
+        working-directory: ./
         env:
-          CILAUNCH: true
+          PR_NUMBER: ${{ github.event.number }}
+        run: |
+          echo $PR_NUMBER > ./pr_number
 
       - name: Check debug symbols
         run: make darwin-check-public-symbols
@@ -132,6 +134,24 @@ jobs:
       - name: Running ios UI tests
         run: make ios-uitest
 
+      # size test
+
+      - name: Build app for size test & output size 
+        working-directory: ./
+        run: | 
+          bazelisk build --compilation_mode=opt //platform/ios:size
+          cp $(bazel cquery --compilation_mode=opt --output=files //platform/ios:size) ./size
+
+      - name: Upload size test result
+        uses: actions/upload-artifact@v3
+        with:
+          name: size-test-result
+          path: |
+            ./size
+            ./pr_number
+      
+      # ---
+
       - name: Build and run SDK unit tests with thread and undefined behavior sanitizers
         run: make ios-sanitize
 

.github/workflows/pr-render-test-result.yml

@@ -1,4 +1,4 @@
-name: upload-render-test-results
+name: pr-upload-render-test-result
 
 permissions:
   pull-requests: write # This is required to leave a comment on the PR
@@ -11,7 +11,7 @@ on:
       - completed
 
 jobs:
-  upload-render-test-results:
+  upload-render-test-result:
     runs-on: ubuntu-22.04
     if: github.event.workflow_run.event == 'pull_request'
     steps:

.github/workflows/pr-size-test-result.yml

@@ -0,0 +1,85 @@
+name: pr-size-test-result
+
+on:
+  workflow_run:
+    workflows: [ios-ci]
+    types:
+      - completed
+
+jobs:
+  comment-on-pr:
+    runs-on: ubuntu-22.04
+    steps:
+      # https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#workflow_run
+      # TODO: de-duplicate with re-usable action
+      - name: 'Download size-test-result artifact'
+        uses: actions/github-script@v6
+        with:
+          script: |
+            let allArtifacts = await github.rest.actions.listWorkflowRunArtifacts({
+               owner: context.repo.owner,
+               repo: context.repo.repo,
+               run_id: context.payload.workflow_run.id,
+            });
+            let matchArtifact = allArtifacts.data.artifacts.filter((artifact) => {
+              return artifact.name == "size-test-result"
+            })[0];
+            let download = await github.rest.actions.downloadArtifact({
+               owner: context.repo.owner,
+               repo: context.repo.repo,
+               artifact_id: matchArtifact.id,
+               archive_format: 'zip',
+            });
+            let fs = require('fs');
+            fs.writeFileSync(`${process.env.GITHUB_WORKSPACE}/size-test-result.zip`, Buffer.from(download.data));
+
+      - name: 'Unzip render-test-result artifact'
+        run: unzip size-test-result.zip
+
+      - name: Show directory structure
+        run: ls -R
+
+      # Move ./size artifact to ./size_main and store as cache
+    
+      - run: mv size size_main
+        if: github.event.workflow_run.event != 'pull_request'
+
+      - name: Save size
+        if: github.event.workflow_run.event != 'pull_request'
+        uses: actions/cache/save@v3
+        with:
+          path: |
+            size_main
+          key: ios-size
+
+      # Restore cache so we can output the difference
+
+      - name: Restore size
+        if: github.event.workflow_run.event == 'pull_request'
+        uses: actions/cache/restore@v3
+        with:
+          path: |
+            size_main
+          key: ios-size
+
+      - run: |
+          echo pr_number="$(cat ./pr_number)" >> "$GITHUB_ENV"
+          echo old_size="$(cat ./size_main)" >> "$GITHUB_ENV"
+          echo new_size="$(cat ./size)" >> "$GITHUB_ENV"
+          echo percentage_change=$(awk 'NR==FNR{a=$0;next}{printf "%+.2f%%\n", 100*($0-a)/a}' $new_size $old_size) >> "$GITHUB_ENV"
+        if: github.event.workflow_run.event == 'pull_request'
+
+      - name: 'Leave comment on PR with test results'
+        if: github.event.workflow_run.event == 'pull_request'
+        uses: marocchino/sticky-pull-request-comment@v2
+        with:
+          number: ${{ env.pr_number }}
+          hide_and_recreate: true
+          hide_classify: "OUTDATED"
+          message: |
+            ### Size test result
+
+            Old size: ${{ env.old_size }} bytes
+            New size: ${{ env.new_size }} bytes
+            Difference: **${{ env.percentage_change }}**
+