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method

cache

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Ruby latest stable (v2_5_5) - 0 notes - Class: Rubygems
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This method is only available on newer versions. The first available version of the method is shown here.

cache(spec, custom_path = nil) public

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# File lib/bundler/source/rubygems.rb, line 192
      def cache(spec, custom_path = nil)
        if builtin_gem?(spec)
          cached_path = cached_built_in_gem(spec)
        else
          cached_path = cached_gem(spec)
        end
        raise GemNotFound, "Missing gem file '#{spec.full_name}.gem'." unless cached_path
        return if File.dirname(cached_path) == Bundler.app_cache.to_s
        Bundler.ui.info "  * #{File.basename(cached_path)}"
        FileUtils.cp(cached_path, Bundler.app_cache(custom_path))
      rescue Errno::EACCES => e
        Bundler.ui.debug(e)
        raise InstallError, e.message
      end
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