How do I find gems that depend on a given gem?

Question

Is it possible to search for all gems that rely on a certain rubygem?

For example, I'd like to ask for all gems in gemcutter that rely on the test-unit gem.

Background: I'm looking to see how other gems handle the issue mentioned here.

Jason · Answer 1 · 2012-10-16T19:32:59.420

8

I had the same problem, and found that some of the other suggestions for this question are now defunct. I came up with a 2-step solution that worked for me.

The following unix-y script will tell you all the gems your gems depend on:

gem list | egrep '^.*[ ]' -o | gem dependency

Then I just searched for the culprit in the output.

edited Oct 16 '12 at 19:32

answered Oct 11 '12 at 19:08

Jason

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This grep fails if there is more than one version of any gem installed. – Paul Brannan Jun 11 '15 at 16:10

score 3 · Answer 2 · answered Nov 09 '09 at 11:03

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Searching for gems with test-unit- brings up a few gems with test-unit- dependencies:

gem search test-unit-

Also, you can search your local gems dependencies with my gem grep plugin

gem grep -f dependencies test-unit

In a future release I plan to support searching remote gem dependencies ...

answered Nov 09 '09 at 11:03

cldwalker

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This should really be integrated into rubygems itself. – shevy Aug 06 '16 at 12:57

score 2 · Answer 3 · answered Nov 08 '09 at 02:22

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Use Google + Gemcutter.

answered Nov 08 '09 at 02:22

Bob Aman

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score 2 · Answer 4 · answered May 07 '20 at 16:09

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This worked for me:

gem dependency GEMNAME --reverse_dependencies

Credit where credit is due: https://stackoverflow.com/a/15079152/4970976.

answered May 07 '20 at 16:09

bartonstanley

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How do I find gems that depend on a given gem?

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