Merge pull request #268 from Blazity/develop #585
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name: "Next.js Bundle Analysis" | |
on: | |
push: | |
branches: | |
- main | |
- develop | |
pull_request: | |
branches: | |
- main | |
- develop | |
workflow_dispatch: | |
defaults: | |
run: | |
# change this if your nextjs app does not live at the root of the repo | |
working-directory: ./ | |
jobs: | |
analyze: | |
env: | |
SKIP_ENV_VALIDATION: true | |
runs-on: ubuntu-latest | |
steps: | |
- uses: actions/checkout@v4 | |
- name: Set up node | |
uses: actions/setup-node@v3 | |
with: | |
node-version: "18.x" | |
- name: Install dependencies | |
run: yarn install --frozen-lockfile | |
- name: Restore next build | |
uses: actions/cache@v3 | |
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 | |
env: | |
SKIP_BUILD_PRODUCT_REDIRECTS: 1 | |
# change this if your site requires a custom build command | |
run: yarn 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: node report-bundle-size.js | |
- name: Upload bundle | |
uses: actions/upload-artifact@v3 | |
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 | |
uses: actions/github-script@v6 | |
with: | |
result-encoding: string | |
script: | | |
const fs = require('fs') | |
const comment = fs.readFileSync('.next/analyze/__bundle_analysis_comment.txt', 'utf8') | |
core.setOutput('body', comment) | |
- name: Find Comment | |
uses: peter-evans/find-comment@v2 | |
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@v3 | |
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@v3 | |
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 |