Add debug logging information to see the time it took to download and install a gem #9066
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- I'd like to be able to see how long bundler takes for basic operations such as downloading a gem from Rubygems.org and installing a gem. It will now be possible with this commit by running `DEBUG=true bundle install` and have output that looks like: Fetching rack-test 2.2.0 Downloaded rack-test in: 50.523s Installing rack-test 2.2.0 Installed rack-test in: : 0.003s
Edouard-chin
commented
Nov 10, 2025
| installed_spec = installer.install | ||
| installed_spec = nil | ||
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| Gem.time("Installed #{spec.name} in", 0, true) do |
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Worth noting the true at the end. The default being to output only when Gem.configuration.verbose is true. But since we are in the context of Bundler, the the RG UI is overriden and those logs will only appear if the level is set to debug
rubygems/bundler/lib/bundler.rb
Line 96 in e4fd4ee
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🙏 Thanks for your explanation. I didn't know that.
Edouard-chin
changed the title
hsbt
approved these changes
Nov 13, 2025
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Thanks for the review |
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What was the end-user or developer problem that led to this PR?
I'd like to be able to see how long bundler takes for basic operations such as downloading a gem from Rubygems.org and installing a gem.
What is your fix for the problem, implemented in this PR?
Added
Gem.timeto surrounding code of interest such as during downloading of a gem and installation.rubygems/lib/rubygems.rb
Line 1048 in e4fd4ee
It will now be possible with this commit by running
DEBUG=true bundle installand have output that looks like:Make sure the following tasks are checked