CI: Update breaking changes workflow to compare against main (#44097)

* ci(breaking-changes): split into separate builds for pr and main

* ci(breaking-changes): add path for npm install steps

* ci(breaking-changes): fix up workflow, update bash script

.github/workflows/detect-breaking-changes-build.yml

@@ -3,27 +3,30 @@ name: Levitate / Detect breaking changes
 on: pull_request
 
 jobs:
-  build:
-    name: Detect
+  buildPR:
+    name: Build PR
     runs-on: ubuntu-latest
-    env:
-      GITHUB_STEP_NUMBER: 7
+    defaults:
+      run:
+        working-directory: './pr'
 
     steps:
     - uses: actions/checkout@v2
+      with: 
+        path: './pr'
 
-    - name: Setup environment
-      uses: actions/setup-node@v2.5.1
+    - name: Get yarn cache directory path
+      id: yarn-cache-dir-path
+      run: echo "::set-output name=dir::$(yarn config get cacheFolder)"
+    
+    - name: Restore yarn cache
+      uses: actions/cache@v2
+      id: yarn-cache
       with:
-        node-version: '16'
-
-    - name: Get link for the Github Action job
-      id: job
-      uses: actions/github-script@v5
-      with:
-        script: |
-            const script = require('./.github/workflows/scripts/pr-get-job-link.js')
-            await script({github, context, core})
+        path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
+        key: yarn-cache-folder-${{ hashFiles('**/yarn.lock', '.yarnrc.yml') }}
+        restore-keys: |
+          yarn-cache-folder-
       
     - name: Install dependencies
       run: yarn install --immutable
@@ -31,24 +34,108 @@ jobs:
     - name: Build packages
       run: yarn packages:build
 
-    - name: Detect breaking changes
-      id: breaking-changes
-      run: ./scripts/check-breaking-changes.sh 
-      env:
-        FORCE_COLOR: 3
-        GITHUB_JOB_LINK: ${{ steps.job.outputs.link }}
+    - name: Zip built packages
+      run: zip -r ./pr_built_packages.zip ./packages/**/dist
 
-    - name: Persisting the check output
-      run: |
-          mkdir -p ./levitate
-          echo "{ \"exit_code\": ${{ steps.breaking-changes.outputs.is_breaking }}, \"message\": \"${{ steps.breaking-changes.outputs.message }}\", \"job_link\": \"${{ steps.job.outputs.link }}#step:${GITHUB_STEP_NUMBER}:1\" }" > ./levitate/result.json
-
-    - name: Upload check output as artifact
+    - name: Upload build output as artifact
       uses: actions/upload-artifact@v2
       with:
-        name: levitate
-        path: levitate/
+        name: buildPr
+        path: './pr/pr_built_packages.zip'
+
+  buildMain:
+    name: Build Main
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: './main'
+
+    steps:
+    - uses: actions/checkout@v2
+      with: 
+        path: './main'
+        ref: 'main'
+
+    - name: Get yarn cache directory path
+      id: yarn-cache-dir-path
+      run: echo "::set-output name=dir::$(yarn config get cacheFolder)"
+    
+    - name: Restore yarn cache
+      uses: actions/cache@v2
+      id: yarn-cache
+      with:
+        path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
+        key: yarn-cache-folder-${{ hashFiles('**/yarn.lock', '.yarnrc.yml') }}
+        restore-keys: |
+          yarn-cache-folder-
       
-    - name: Exit
-      run: exit ${{ steps.breaking-changes.outputs.is_breaking }}
-      shell: bash
+    - name: Install dependencies
+      run: yarn install --immutable
+
+    - name: Build packages
+      run: yarn packages:build
+
+    - name: Zip built packages
+      run: zip -r ./main_built_packages.zip ./packages/**/dist
+
+    - name: Upload build output as artifact
+      uses: actions/upload-artifact@v2
+      with:
+        name: buildMain
+        path: './main/main_built_packages.zip'
+
+  Detect:
+    name: Detect breaking changes
+    runs-on: ubuntu-latest
+    needs: ['buildPR', 'buildMain']
+    env:
+      GITHUB_STEP_NUMBER: 7
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Get built packages from pr
+        uses: actions/download-artifact@v2
+        with:
+          name: buildPr
+
+      - name: Get built packages from main
+        uses: actions/download-artifact@v2
+        with:
+          name: buildMain
+      
+      - name: Unzip artifact from pr
+        run: unzip pr_built_packages.zip -d ./pr && rm pr_built_packages.zip
+
+      - name: Unzip artifact from main
+        run: unzip main_built_packages.zip -d ./main && rm main_built_packages.zip
+
+      - name: Get link for the Github Action job
+        id: job
+        uses: actions/github-script@v5
+        with:
+          script: |
+              const script = require('./.github/workflows/scripts/pr-get-job-link.js')
+              await script({github, context, core})
+
+      - name: Detect breaking changes
+        id: breaking-changes
+        run: ./scripts/check-breaking-changes.sh 
+        env:
+          FORCE_COLOR: 3
+          GITHUB_JOB_LINK: ${{ steps.job.outputs.link }}
+
+      - name: Persisting the check output
+        run: |
+            mkdir -p ./levitate
+            echo "{ \"exit_code\": ${{ steps.breaking-changes.outputs.is_breaking }}, \"message\": \"${{ steps.breaking-changes.outputs.message }}\", \"job_link\": \"${{ steps.job.outputs.link }}#step:${GITHUB_STEP_NUMBER}:1\" }" > ./levitate/result.json
+
+      - name: Upload check output as artifact
+        uses: actions/upload-artifact@v2
+        with:
+          name: levitate
+          path: levitate/
+        
+      - name: Exit
+        run: exit ${{ steps.breaking-changes.outputs.is_breaking }}
+        shell: bash