Class: Gem::Commands::WhichCommand
- Inherits:
-
Gem::Command
- Object
- Gem::Command
- Gem::Commands::WhichCommand
- Defined in:
- lib/rubygems/commands/which_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:.
- #execute ⇒ Object
- #find_paths(package_name, dirs) ⇒ Object
- #gem_paths(spec) ⇒ Object
-
#initialize ⇒ WhichCommand
constructor
A new instance of WhichCommand.
-
#usage ⇒ Object
:nodoc:.
Methods inherited from Gem::Command
add_common_option, #add_extra_args, #add_option, add_specific_extra_args, #begins?, build_args, build_args=, common_options, #description, extra_args, extra_args=, #get_all_gem_names, #get_one_gem_name, #get_one_optional_argument, #handle_options, #handles?, #invoke, #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
Methods included from DefaultUserInteraction
ui, #ui, ui=, #ui=, use_ui, #use_ui
Constructor Details
#initialize ⇒ WhichCommand
Returns a new instance of WhichCommand.
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# File 'lib/rubygems/commands/which_command.rb', line 4 def initialize super 'which', 'Find the location of a library file you can require', :search_gems_first => false, :show_all => false add_option '-a', '--[no-]all', 'show all matching files' do |show_all, | [:show_all] = show_all end add_option '-g', '--[no-]gems-first', 'search gems before non-gems' do |gems_first, | [:search_gems_first] = gems_first end end |
Instance Method Details
#arguments ⇒ Object
:nodoc:
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# File 'lib/rubygems/commands/which_command.rb', line 18 def arguments # :nodoc: "FILE name of file to find" end |
#defaults_str ⇒ Object
:nodoc:
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# File 'lib/rubygems/commands/which_command.rb', line 22 def defaults_str # :nodoc: "--no-gems-first --no-all" end |
#execute ⇒ Object
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# File 'lib/rubygems/commands/which_command.rb', line 26 def execute found = false [:args].each do |arg| arg = arg.sub(/#{Regexp.union(*Gem.suffixes)}$/, '') dirs = $LOAD_PATH spec = Gem::Specification.find_by_path arg if spec then if [:search_gems_first] then dirs = gem_paths(spec) + $LOAD_PATH else dirs = $LOAD_PATH + gem_paths(spec) end end # TODO: this is totally redundant and stupid paths = find_paths arg, dirs if paths.empty? then alert_error "Can't find ruby library file or shared library #{arg}" else say paths found = true end end terminate_interaction 1 unless found end |
#find_paths(package_name, dirs) ⇒ Object
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# File 'lib/rubygems/commands/which_command.rb', line 57 def find_paths(package_name, dirs) result = [] dirs.each do |dir| Gem.suffixes.each do |ext| full_path = File.join dir, "#{package_name}#{ext}" if File.exist? full_path and not File.directory? full_path then result << full_path return result unless [:show_all] end end end result end |
#gem_paths(spec) ⇒ Object
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# File 'lib/rubygems/commands/which_command.rb', line 73 def gem_paths(spec) spec.require_paths.collect { |d| File.join spec.full_gem_path, d } end |
#usage ⇒ Object
:nodoc:
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# File 'lib/rubygems/commands/which_command.rb', line 77 def usage # :nodoc: "#{program_name} FILE [FILE ...]" end |