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25a9b62d45
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@30996 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
100 lines
2.8 KiB
Ruby
100 lines
2.8 KiB
Ruby
######################################################################
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# This file is imported from the rubygems project.
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# DO NOT make modifications in this repo. They _will_ be reverted!
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# File a patch instead and assign it to Ryan Davis or Eric Hodel.
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######################################################################
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require 'rubygems/command'
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require 'rubygems/format'
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require 'rubygems/installer'
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require 'rubygems/version_option'
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class Gem::Commands::PristineCommand < Gem::Command
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include Gem::VersionOption
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def initialize
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super 'pristine',
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'Restores installed gems to pristine condition from files located in the gem cache',
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:version => Gem::Requirement.default
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add_option('--all',
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'Restore all installed gems to pristine',
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'condition') do |value, options|
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options[:all] = value
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end
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add_version_option('restore to', 'pristine condition')
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end
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def arguments # :nodoc:
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"GEMNAME gem to restore to pristine condition (unless --all)"
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end
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def defaults_str # :nodoc:
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"--all"
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end
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def description # :nodoc:
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<<-EOF
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The pristine command compares the installed gems with the contents of the
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cached gem and restores any files that don't match the cached gem's copy.
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If you have made modifications to your installed gems, the pristine command
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will revert them. After all the gem's files have been checked all bin stubs
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for the gem are regenerated.
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If the cached gem cannot be found, you will need to use `gem install` to
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revert the gem.
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EOF
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end
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def usage # :nodoc:
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"#{program_name} [args]"
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end
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def execute
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gem_name = nil
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specs = if options[:all] then
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Gem::SourceIndex.from_installed_gems.map do |name, spec|
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spec
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end
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else
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gem_name = get_one_gem_name
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Gem::SourceIndex.from_installed_gems.find_name(gem_name,
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options[:version])
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end
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if specs.empty? then
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raise Gem::Exception,
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"Failed to find gem #{gem_name} #{options[:version]}"
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end
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install_dir = Gem.dir # TODO use installer option
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raise Gem::FilePermissionError.new(install_dir) unless
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File.writable?(install_dir)
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say "Restoring gem(s) to pristine condition..."
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specs.each do |spec|
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gem = spec.cache_gem
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if gem.nil? then
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say "Cached gem for #{spec.full_name} not found, attempting to fetch..."
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dep = Gem::Dependency.new spec.name, spec.version
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Gem::RemoteFetcher.fetcher.download_to_cache dep
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gem = spec.cache_gem
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end
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# TODO use installer options
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installer = Gem::Installer.new gem, :wrappers => true, :force => true
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installer.install
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say "Restored #{spec.full_name}"
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end
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end
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end
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