Update just one gem with bundler

Question

I use bundler to manage dependencies in my rails app, and I have a gem hosted in a git repository included as followed:

gem \'gem-name\', :git => \'path/t         


        

Answer 1

Here you can find a good explanation on the difference between

Update both gem and dependencies:

bundle update gem-name 

or

Update exclusively the gem:

bundle update --source gem-name

along with some nice examples of possible side-effects.

Update

As @Tim's answer says, as of Bundler 1.14 the officially-supported way to this is with bundle update --conservative gem-name.

Answer 2

bundler update --source gem-name will update the revision hash in Gemfile.lock which you can compare with the last commit hash of that git branch (master by default).

GIT remote: git@github.com:organization/repo-name.git revision: c810f4a29547b60ca8106b7a6b9a9532c392c954

can be found at github.com/organization/repo-name/commits/c810f4a2 (I used shorthand 8 character commit hash for the url)

Answer 3

If you want to update a single gem to a specific version:

1. change the version of the gem in the Gemfile
2. bundle update

> ruby -v
ruby 2.6.5p114 (2019-10-01 revision 67812) [x86_64-darwin19]
> gem -v
3.0.3
> bundle -v
Bundler version 2.1.4

Answer 4

bundle update gem-name [--major|--patch|--minor]

This also works for dependencies.

Answer 5

You simply need to specify the gem name on the command line:

bundle update gem-name

Answer 6

It appears that with newer versions of bundler (>= 1.14) it's:

bundle update --conservative gem-name