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Cleanup cache after `bundle install`

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#645 4 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
35/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Stale
Tech stack
javascript, ruby
Domain
ci-cd, devops

Research direction

The issue does not name files or tests; start by tracing setup-ruby’s action configuration and the bundle install flow. Determine where an opt-in cache-pruning setting belongs, then verify that enabled installs remove the specified cache paths while default behavior remains unchanged.

Written by the indexing model from the issue text.

Description

Hi, I noticed that the cache size is double what all gems in my project weigh. It seems like it's due to ${BUNDLE_PATH}/ruby/*/cache/*.gem files. But I don't think we need them after bundle install is finished. Or am I missing something?

I was thinking about adding a config param like prune-bundle-cache: true that would run rm -rf ${BUNDLE_PATH}/ruby/*/cache after bundle install

Rails already does it https://github.com/rails/rails/blob/9e9f80778abb38b8d884d456594d6b6fa683c773/railties/lib/rails/generators/rails/app/templates/Dockerfile.tt#L57

RUN bundle install && \
    rm -rf ~/.bundle/ "${BUNDLE_PATH}"/ruby/*/cache "${BUNDLE_PATH}"/ruby/*/bundler/gems/*/.git

WDYT?

Dominant language
JavaScript
Stars
990
Forks
369
Avg merge
18m
Merged PRs (30d)
3

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