joschi/foreman — comment on commit 75a86be7c6a2493f78cff9319009c885ee2a0ee9
File:  line 0
By joschi:

Yes, exactly. I first thought this wouldn't be a problem since having one or two more gems installed usually doesn't matter much.

But since these gems need header files and libraries of the respective database system installed this might not work on every system.

Unfortunately Bundler currently only supports exclusion of groups with the `--without` command line parameter but not inclusion (ie. only install the listed groups).

A workaround could be to add the `.bundle/config` file which contains a list of the excluded groups, also see [Remembered Options](http://gembundler.com/man/bundle-install.1.html#REMEMBERED-OPTIONS).