Automatically run 'bundle install' if a gem binary crashes because gems are missing

[Nathan Broadbent]

Hello,

For the past year or so I've been running a script that detects the 'GemNotFound' error code, and automatically runs 'bundle install' before retrying the command. I've found this to be super useful, and it saves a lot of time by automating a very common task. I 'git pull' some changes, run a rails or rake command, and any new gems are automatically installed before running the command.

Here's the bash scripts I've been using: http://madebynathan.com/2012/12/17/automatically-run-bundle-install-if-bundler-raises-gemnotfound/

I would like to suggest adding this as a Bundler feature. Maybe a new config option, such as: bundle config auto_install true

If this was enabled, any time a `bundle exec` or `Bundler.require` fails with missing gems, Bundler would run 'bundle install', and then retry the command / require. If it fails a second time, then raise the error.

Please let me know what you think.

Best,

Nathan Broadbent