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bundle:tldr:5be60
The command "bundle update" is used in Ruby projects that use Bundler to manage dependencies. Here's an explanation of what happens when this command is executed:
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Bundler analyzes the project's Gemfile.lock file, which contains a list of all the currently installed gems and their specific versions.
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Bundler then checks the Gemfile, which lists the required gems and their allowed versions for the project.
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Bundler compares the gems and their versions specified in the Gemfile with those in the Gemfile.lock. If there are any differences or newer versions available, Bundler updates the Gemfile.lock file to reflect the latest allowable versions.
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Finally, Bundler installs the updated gems, pulling them from the gem sources specified in the Gemfile (such as RubyGems), and updates the project's bundle directory.
In summary, "bundle update" command ensures that all the gems in a Ruby project are updated to their latest allowable versions as defined in the Gemfile. It helps to keep dependencies up to date and ensure compatibility with the project's requirements.