README

BundleWatch

BundleWatch checks file sizes, ensuring bundled browser assets don't jump in file size.
Sharp increases in BundleWatch can signal that something is wrong - adding a package that bloats the slug, a wrong import, or forgetting to minify.

Inspired by Siddharth Kshetrapal bundlesize

Getting Started:

Install the BundleWatch package:

NPM: npm install bundlewatch --save-dev
Yarn: yarn add bundlewatch --dev

Add some basic configuration to your package.json

{
    "name": "my package name",
    "version": "0.0.1",
    "bundlewatch" : {
        "files": [
            {
                "path": "myfolder/*.js",
                "maxSize": "100kB"
            }
        ]
    }
}

Usage:

NPM: npm run bundlewatch
Yarn: yarn run bundlewatch

This will give you command line output. If you want BundleWatch to report build status on your pull requests, see below.

Adding Build Status:

BundleWatch can report its status on your GitHub Pull Requests.

CI Auth Variables Needed by BundleWatch:

BUNDLEWATCH_GITHUB_TOKEN

You will need to give BundleWatch access to your GitHub Statuses, which can be done by heading to: https://service.bundlewatch.io/setup-github

This will give you your BUNDLEWATCH_GITHUB_TOKEN. You will need to set this as an environment variable in CI.

CI Variables Needed by BundleWatch:

The most efficient way to get this running is to ensure that some environment variables are available for BundleWatch to find.

CI_REPO_OWNER github.com/facebook/react
CI_REPO_NAME github.com/facebook/react
CI_COMMIT_SHA
CI_BRANCH

If you're using, Travis, CircleCI, Wrecker, Drone or GitHub Actions these should all work out of the box.

Have a look at the source code to see which variables are automatically found: https://github.com/bundlewatch/bundlewatch/blob/master/src/app/config/getCIVars.js

Viewing the results breakdown

After setting up the above you will have BuildStatus on your Pull Requests. Clicking the details link on the reported status will show you a results file breakdown.

Additional Documentation:

Full documentation avialable on bundlewatch.io

I use bundlesize, why should I switch to BundleWatch?

Bundlesize has entered maintenance mode and pull requests are left hanging, so we wanted to reboot the community through creating BundleWatch
New BundleWatch service with infrastructure as code
Launched bundlewatch.io documentation website
Enough test coverage to support CD
Node API Support
Lower barrier to contributing (automated testing and publishing), build a trusted community of contributors to have continuous improvement