Analyzes each PR's impact on esbuild bundle size

# Ensure you build your project before running this action
- name: Run esbuild
  run: npm run build

# Call this action after the build
- name: Analyze esbuild bundle size
  # uses: exoego/esbuild-bundle-analyzer@main # If you prefer nightly!
  uses: exoego/esbuild-bundle-analyzer@v1
  with:
    metafiles: "out/meta.json"

As of esbuild v0.20.0, you need to write meta file yourself after build, something like this:

// esbuild.mjs
import * as esbuild from 'esbuild'
import fs from 'node:fs'

let result = await esbuild.build({
    entryPoints: ['src/app1.ts', 'src/app2.ts'],
    bundle: true,
    metafile: true,
    outdir: 'dist',
})

fs.writeFileSync('dist/meta.json', JSON.stringify(result.metafile))

In this case, the metafiles input should be "dist/meta.json".

If you have multiple meta files, you can specify them like this "dist/meta1.json,dist/meta2.json".

No outputs are provided by this action at this time.

• Highly inspired by hashicorp/nextjs-bundle-analysis

MIT