Class: Gem::Commands::PristineCommand
- Inherits:
-
Gem::Command
- Object
- Gem::Command
- Gem::Commands::PristineCommand
- Includes:
- VersionOption
- Defined in:
- lib/rubygems/commands/pristine_command.rb
Instance Attribute Summary
Attributes inherited from Gem::Command
#command, #defaults, #options, #program_name, #summary
Instance Method Summary collapse
-
#arguments ⇒ Object
:nodoc:.
-
#defaults_str ⇒ Object
:nodoc:.
-
#description ⇒ Object
:nodoc:.
- #execute ⇒ Object
-
#initialize ⇒ PristineCommand
constructor
A new instance of PristineCommand.
-
#usage ⇒ Object
:nodoc:.
Methods included from VersionOption
#add_platform_option, #add_prerelease_option, #add_version_option
Methods inherited from Gem::Command
add_common_option, #add_extra_args, #add_option, add_specific_extra_args, #begins?, build_args, build_args=, common_options, extra_args, extra_args=, #get_all_gem_names, #get_all_gem_names_and_versions, #get_one_gem_name, #get_one_optional_argument, #handle_options, #handles?, #invoke, #invoke_with_build_args, #merge_options, #remove_option, #show_help, #show_lookup_failure, specific_extra_args, specific_extra_args_hash, #when_invoked
Methods included from UserInteraction
#alert, #alert_error, #alert_warning, #ask, #ask_for_password, #ask_yes_no, #choose_from_list, #say, #terminate_interaction, #verbose
Methods included from DefaultUserInteraction
ui, #ui, ui=, #ui=, use_ui, #use_ui
Constructor Details
#initialize ⇒ PristineCommand
Returns a new instance of PristineCommand.
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# File 'lib/rubygems/commands/pristine_command.rb', line 11 def initialize super 'pristine', 'Restores installed gems to pristine condition from files located in the gem cache', :version => Gem::Requirement.default, :extensions => true, :extensions_set => false, :all => false add_option('--all', 'Restore all installed gems to pristine', 'condition') do |value, | [:all] = value end add_option('--skip=gem_name', 'used on --all, skip if name == gem_name') do |value, | [:skip] = value end add_option('--[no-]extensions', 'Restore gems with extensions', 'in addition to regular gems') do |value, | [:extensions_set] = true [:extensions] = value end add_option('--only-executables', 'Only restore executables') do |value, | [:only_executables] = value end add_option('-E', '--[no-]env-shebang', 'Rewrite executables with a shebang', 'of /usr/bin/env') do |value, | [:env_shebang] = value end add_version_option('restore to', 'pristine condition') end |
Instance Method Details
#arguments ⇒ Object
:nodoc:
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# File 'lib/rubygems/commands/pristine_command.rb', line 51 def arguments # :nodoc: "GEMNAME gem to restore to pristine condition (unless --all)" end |
#defaults_str ⇒ Object
:nodoc:
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# File 'lib/rubygems/commands/pristine_command.rb', line 55 def defaults_str # :nodoc: '--extensions' end |
#description ⇒ Object
:nodoc:
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# File 'lib/rubygems/commands/pristine_command.rb', line 59 def description # :nodoc: "The pristine command compares an installed gem with the contents of its\ncached .gem file and restores any files that don't match the cached .gem's\ncopy.\n\nIf you have made modifications to an installed gem, the pristine command\nwill revert them. All extensions are rebuilt and all bin stubs for the gem\nare regenerated after checking for modifications.\n\nIf the cached gem cannot be found it will be downloaded.\n\nIf --no-extensions is provided pristine will not attempt to restore a gem\nwith an extension.\n\nIf --extensions is given (but not --all or gem names) only gems with\nextensions will be restored.\n EOF\nend\n" |
#execute ⇒ Object
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# File 'lib/rubygems/commands/pristine_command.rb', line 83 def execute specs = if [:all] then Gem::Specification.map # `--extensions` must be explicitly given to pristine only gems # with extensions. elsif [:extensions_set] and [:extensions] and [:args].empty? then Gem::Specification.select do |spec| spec.extensions and not spec.extensions.empty? end else get_all_gem_names.sort.map do |gem_name| Gem::Specification.find_all_by_name(gem_name, [:version]).reverse end.flatten end if specs.to_a.empty? then raise Gem::Exception, "Failed to find gems #{options[:args]} #{options[:version]}" end install_dir = Gem.dir # TODO use installer option raise Gem::FilePermissionError.new(install_dir) unless File.writable?(install_dir) say "Restoring gems to pristine condition..." specs.each do |spec| if spec.default_gem? say "Skipped #{spec.full_name}, it is a default gem" next end if spec.name == [:skip] say "Skipped #{spec.full_name}, it was given through options" next end if spec.bundled_gem_in_old_ruby? say "Skipped #{spec.full_name}, it is bundled with old Ruby" next end unless spec.extensions.empty? or [:extensions] then say "Skipped #{spec.full_name}, it needs to compile an extension" next end gem = spec.cache_file unless File.exist? gem then require 'rubygems/remote_fetcher' say "Cached gem for #{spec.full_name} not found, attempting to fetch..." dep = Gem::Dependency.new spec.name, spec.version found, _ = Gem::SpecFetcher.fetcher.spec_for_dependency dep if found.empty? say "Skipped #{spec.full_name}, it was not found from cache and remote sources" next end spec_candidate, source = found.first Gem::RemoteFetcher.fetcher.download spec_candidate, source.uri.to_s, spec.base_dir end env_shebang = if .include? :env_shebang then [:env_shebang] else install_defaults = Gem::ConfigFile::PLATFORM_DEFAULTS['install'] install_defaults.to_s['--env-shebang'] end installer = Gem::Installer.at(gem, :wrappers => true, :force => true, :install_dir => spec.base_dir, :env_shebang => env_shebang, :build_args => spec.build_args) if [:only_executables] then installer.generate_bin else installer.install end say "Restored #{spec.full_name}" end end |
#usage ⇒ Object
:nodoc:
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# File 'lib/rubygems/commands/pristine_command.rb', line 79 def usage # :nodoc: "#{program_name} [GEMNAME ...]" end |