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BUNDLE-CACHE(1) BUNDLE-CACHE(1)
NAME
bundle-cache - Package your needed .gem files into your application
SYNOPSIS
bundle cache
DESCRIPTION
Copy all of the .gem files needed to run the application into the
vendor/cache directory. In the future, when running [bundle
install(1)][bundle-install], use the gems in the cache in preference to
the ones on rubygems.org.
GIT AND PATH GEMS
The bundle cache command can also package :git and :path dependencies
besides .gem files. This needs to be explicitly enabled via the --all
option. Once used, the --all option will be remembered.
SUPPORT FOR MULTIPLE PLATFORMS
When using gems that have different packages for different platforms,
Bundler supports caching of gems for other platforms where the Gemfile
has been resolved (i.e. present in the lockfile) in vendor/cache. This
needs to be enabled via the --all-platforms option. This setting will
be remembered in your local bundler configuration.
REMOTE FETCHING
By default, if you run bundle install(1)](bundle-install.1.html) after
running bundle cache(1) bundle-cache.1.html, bundler will still connect
to rubygems.org to check whether a platform-specific gem exists for any
of the gems in vendor/cache.
For instance, consider this Gemfile(5):
source "https://rubygems.org"
gem "nokogiri"
If you run bundle cache under C Ruby, bundler will retrieve the version
of nokogiri for the "ruby" platform. If you deploy to JRuby and run
bundle install, bundler is forced to check to see whether a "java"
platformed nokogiri exists.
Even though the nokogiri gem for the Ruby platform is technically
acceptable on JRuby, it has a C extension that does not run on JRuby.
As a result, bundler will, by default, still connect to rubygems.org to
check whether it has a version of one of your gems more specific to
your platform.
This problem is also not limited to the "java" platform. A similar
(common) problem can happen when developing on Windows and deploying to
Linux, or even when developing on OSX and deploying to Linux.
If you know for sure that the gems packaged in vendor/cache are
appropriate for the platform you are on, you can run bundle install
--local to skip checking for more appropriate gems, and use the ones in
vendor/cache.
One way to be sure that you have the right platformed versions of all
your gems is to run bundle cache on an identical machine and check in
the gems. For instance, you can run bundle cache on an identical
staging box during your staging process, and check in the vendor/cache
before deploying to production.
By default, bundle cache(1) bundle-cache.1.html fetches and also
installs the gems to the default location. To package the dependencies
to vendor/cache without installing them to the local install location,
you can run bundle cache --no-install.
May 2020 BUNDLE-CACHE(1)
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