hanford / bundle-cop

🚓 compare webpack stats between branches

bundle-cop 👮‍♀️

Generate a bundle size comparison between two different branches

You can see an example here

Usage

$ bundle-cop --branch master

Bundle cop compares the current branch with the one specified using the --branch command.

After comparing, it will generate an index.html file which is automatically has a breakdown of file size changes

Both branches will need to contain a npm run build-analyze script that ensures we're using our webpack-bundle-analyzer plugin.

You'll want to use this webpack plugin as well

npm i webpack-bundle-analyzer --save-dev

and your next.config.js will need something like this:

const { BundleAnalyzerPlugin } = require('webpack-bundle-analyzer')

..

if (process.env.ANALYZE) {
  config.plugins.push(new BundleAnalyzerPlugin({
    statsFilename: 'stats.json',
    analyzerMode: 'disabled',
    generateStatsFile: true
  ))
}

Questions? Feedback? Please let me know

License (MIT)

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Copyright © 2017-present Jack Hanford [e-mail]

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.