zodern:standard-minifier-js
Fast javascript minifier for Meteor apps that creates source maps
Features:
- Creates production source maps
- Very fast by using the swc minifier, a faster js parser, and disk and memory caches
- Compatible with Meteor 1.9 and newer. For Meteor 1.4 - 1.5, use
zodern:standard-minifier-js@3.0.0
for production source maps, and for Meteor 1.6 - 1.8 usezodern:standard-minifier-js@4.1.1
. - Generates bundle stats for bundle-visualizer
First, you need to remove standard-minifier-js
from your app
meteor remove standard-minifier-js
Then add this package with:
meteor add zodern:standard-minifier-js
If you want to prevent access to the source maps, you can add the zodern:hide-production-sourcemaps
package. Source maps include the original content from all of your client files, so you probably want to do this step.
meteor add zodern:hide-production-sourcemaps
Error tracking
Source maps allow error tracking services to show you better stack traces. I run Monti APM which provides an error tracking service and can use your app's source maps with no additional config.
To use with other error tracking services, you will need to upload the source maps when deploying. The source map is saved in the bundle from meteor build
at programs/<arch>/<filename>.js.map
. You will want to upload the source maps for each web arch, and for the dynamic imports for each arch.
Caches
When deploying from CI, you will need to configure the CI to cache at least parts of the .meteor/local
folder for the minify cache to work. Learn more at this blog post.
Environment Variables
DISABLE_CLIENT_STATS
Set to true
to disable creating the stats.json
file used by the bundle-visualizer. This can save a few seconds during production builds for large apps.
METEOR_FASTMINIFIER_CACHE_DEBUG
Set to true
to view the cache logs