Try to add bundle analyzer

.github/workflows/nextjs_bundle_analysis.yml

@@ -0,0 +1,111 @@
+name: "Next.js Bundle Analysis"
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main # change this if your default branch is named differently
+  workflow_dispatch:
+
+defaults:
+  run:
+    # change this if your nextjs app does not live at the root of the repo
+    working-directory: ./beta/
+
+jobs:
+  analyze:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Set up node
+        uses: actions/setup-node@v1
+        with:
+          node-version: "14.x"
+
+      - name: Install dependencies
+        uses: bahmutov/npm-install@v1
+
+      - name: Restore next build
+        uses: actions/cache@v2
+        id: restore-build-cache
+        env:
+          cache-name: cache-next-build
+        with:
+          path: .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
+
+      # 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
+
+      - name: Upload bundle
+        uses: actions/upload-artifact@v2
+        with:
+          name: bundle
+          path: .next/analyze/__bundle_analysis.json
+
+      - name: Download base branch bundle stats
+        uses: dawidd6/action-download-artifact@v2
+        if: success() && github.event.number
+        with:
+          workflow: nextjs_bundle_analysis.yml
+          branch: ${{ github.event.pull_request.base.ref }}
+          path: .next/analyze/base
+
+      # And here's the second place - this runs after we have both the current and
+      # base branch bundle stats, and will compare them to determine what changed.
+      # There are two configurable arguments that come from package.json:
+      #
+      # - budget: optional, set a budget (bytes) against which size changes are measured
+      #           it's set to 350kb here by default, as informed by the following piece:
+      #           https://infrequently.org/2021/03/the-performance-inequality-gap/
+      #
+      # - red-status-percentage: sets the percent size increase where you get a red
+      #                          status indicator, defaults to 20%
+      #
+      # Either of these arguments can be changed or removed by editing the `nextBundleAnalysis`
+      # entry in your package.json file.
+      - name: Compare with base branch bundle
+        if: success() && github.event.number
+        run: ls -laR .next/analyze/base && npx -p nextjs-bundle-analysis compare
+
+      - name: Get comment body
+        id: get-comment-body
+        if: success() && github.event.number
+        run: |
+          body=$(cat .next/analyze/__bundle_analysis_comment.txt)
+          body="${body//'%'/'%25'}"
+          body="${body//$'\n'/'%0A'}"
+          body="${body//$'\r'/'%0D'}"
+          echo ::set-output name=body::$body
+
+      - name: Find Comment
+        uses: peter-evans/find-comment@v1
+        if: success() && github.event.number
+        id: fc
+        with:
+          issue-number: ${{ github.event.number }}
+          body-includes: "<!-- __NEXTJS_BUNDLE -->"
+
+      - name: Create Comment
+        uses: peter-evans/create-or-update-comment@v1.4.4
+        if: success() && github.event.number && steps.fc.outputs.comment-id == 0
+        with:
+          issue-number: ${{ github.event.number }}
+          body: ${{ steps.get-comment-body.outputs.body }}
+
+      - name: Update Comment
+        uses: peter-evans/create-or-update-comment@v1.4.4
+        if: success() && github.event.number && steps.fc.outputs.comment-id != 0
+        with:
+          issue-number: ${{ github.event.number }}
+          body: ${{ steps.get-comment-body.outputs.body }}
+          comment-id: ${{ steps.fc.outputs.comment-id }}
+          edit-mode: replace

beta/package.json

@@ -89,5 +89,10 @@
   },
   "engines": {
     "node": ">=12.x"
+  },
+  "nextBundleAnalysis": {
+    "budget": null,
+    "budgetPercentIncreaseRed": 10,
+    "showDetails": true
   }
-}
+}