Fix bundle analyzer workflow (#4060)

* try again

* maybe build

* the rest

* add cache back in

.github/workflows/nextjs_bundle_analysis.yml

@@ -12,19 +12,16 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-        with:
-          path: 'beta'
 
       - name: Set up node
         uses: actions/setup-node@v1
         with:
           node-version: "14.x"
 
-      - name: Use beta
-        run: cd beta
-
       - name: Install dependencies
         uses: bahmutov/npm-install@v1.6.0
+        with:
+          working-directory: 'beta'
 
       - name: Restore next build
         uses: actions/cache@v2
@@ -32,24 +29,26 @@ jobs:
         env:
           cache-name: cache-next-build
         with:
-          path: .next/cache
+          path: beta/.next/cache
           # change this if you prefer a more strict cache
           key: ${{ runner.os }}-build-${{ env.cache-name }}
 
       - name: Build next.js app
         # change this if your site requires a custom build command
         run: ./node_modules/.bin/next build
+        working-directory: beta
 
       # Here's the first place where next-bundle-analysis' own script is used
       # This step pulls the raw bundle stats for the current bundle
       - name: Analyze bundle
         run: npx -p nextjs-bundle-analysis report
+        working-directory: beta
 
       - name: Upload bundle
         uses: actions/upload-artifact@v2
         with:
           name: bundle
-          path: .next/analyze/__bundle_analysis.json
+          path: beta/.next/analyze/__bundle_analysis.json
 
       - name: Download base branch bundle stats
         uses: dawidd6/action-download-artifact@v2
@@ -57,7 +56,7 @@ jobs:
         with:
           workflow: nextjs_bundle_analysis.yml
           branch: ${{ github.event.pull_request.base.ref }}
-          path: .next/analyze/base
+          path: beta/.next/analyze/base
 
       # And here's the second place - this runs after we have both the current and
       # base branch bundle stats, and will compare them to determine what changed.
@@ -74,13 +73,13 @@ jobs:
       # entry in your package.json file.
       - name: Compare with base branch bundle
         if: success() && github.event.number
-        run: ls -laR .next/analyze/base && npx -p nextjs-bundle-analysis compare
+        run: ls -laR beta/.next/analyze/base && npx -p nextjs-bundle-analysis compare
 
       - name: Get comment body
         id: get-comment-body
         if: success() && github.event.number
         run: |
-          body=$(cat .next/analyze/__bundle_analysis_comment.txt)
+          body=$(cat beta/.next/analyze/__bundle_analysis_comment.txt)
           body="${body//'%'/'%25'}"
           body="${body//$'\n'/'%0A'}"
           body="${body//$'\r'/'%0D'}"