Have you ever seen this error when you tried to deploy to your Heroku app?
Compiled slug size: 300.6M is too large (max is 300M)
You can't deploy but it can be fixed. Here are ways to reduce the slug size.
Clean up the Git repository
Install the Heroku Repo plugin:
heroku plugins:install https://github.com/heroku/heroku-repo.git
heroku repo:gc --app your-app-name heroku repo:purge_cache --app your-app-name
These commands will execute
git gc --aggressive (git-clean) and
delete the contents of the Heroku build cache stored in
your application's Git repository.
Doing this on a recent app reduced my slug size by 100M.
Move some files out of the repo
Move internal design documents (
.sketch files) somewhere like Dropbox.
Move user-facing media (
.mpg files) somewhere like Amazon S3.
Ignore some files that have to be in the repo
Follow Heroku's instructions to
ignore files such as unit tests with
Remove unused dependencies
Hopefully each Ruby gem in Bundler groups is being used by the app. Do an audit and remove any that aren't used.
Bundle only what you need for the environment
Heroku accepts an environment variable to limit the Ruby gems that it bundles and caches.
heroku config:set BUNDLE_WITHOUT="development:test" --app your-app-name