Class: LibGems::Commands::SpecificationCommand
- Inherits:
-
LibGems::Command
- Object
- LibGems::Command
- LibGems::Commands::SpecificationCommand
- Includes:
- LocalRemoteOptions, VersionOption
- Defined in:
- lib/libgems/commands/specification_command.rb
Instance Attribute Summary
Attributes inherited from LibGems::Command
#command, #defaults, #options, #program_name, #summary
Instance Method Summary collapse
-
#arguments ⇒ Object
:nodoc:.
-
#defaults_str ⇒ Object
:nodoc:.
- #execute ⇒ Object
-
#initialize ⇒ SpecificationCommand
constructor
A new instance of SpecificationCommand.
-
#usage ⇒ Object
:nodoc:.
Methods included from VersionOption
#add_platform_option, #add_prerelease_option, #add_version_option
Methods included from LocalRemoteOptions
#accept_uri_http, #add_bulk_threshold_option, #add_local_remote_options, #add_proxy_option, #add_source_option, #add_update_sources_option, #both?, #local?, #remote?
Methods inherited from LibGems::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
Methods included from DefaultUserInteraction
ui, #ui, ui=, #ui=, use_ui, #use_ui
Constructor Details
#initialize ⇒ SpecificationCommand
Returns a new instance of SpecificationCommand.
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# File 'lib/libgems/commands/specification_command.rb', line 12 def initialize LibGems.load_yaml super 'specification', 'Display gem specification (in yaml)', :domain => :local, :version => LibGems::Requirement.default, :format => :yaml add_version_option('examine') add_platform_option add_option('--all', 'Output specifications for all versions of', 'the gem') do |value, | [:all] = true end add_option('--ruby', 'Output ruby format') do |value, | [:format] = :ruby end add_option('--yaml', 'Output RUBY format') do |value, | [:format] = :yaml end add_option('--marshal', 'Output Marshal format') do |value, | [:format] = :marshal end end |
Instance Method Details
#arguments ⇒ Object
:nodoc:
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# File 'lib/libgems/commands/specification_command.rb', line 42 def arguments # :nodoc: <<-ARGS GEMFILE name of gem to show the gemspec for FIELD name of gemspec field to show ARGS end |
#defaults_str ⇒ Object
:nodoc:
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# File 'lib/libgems/commands/specification_command.rb', line 49 def defaults_str # :nodoc: "--local --version '#{LibGems::Requirement.default}' --yaml" end |
#execute ⇒ Object
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# File 'lib/libgems/commands/specification_command.rb', line 57 def execute specs = [] gem = [:args].shift unless gem then raise LibGems::CommandLineError, "Please specify a gem name or file on the command line" end dep = LibGems::Dependency.new gem, [:version] field = get_one_optional_argument if field then field = field.intern if [:format] == :ruby then raise LibGems::CommandLineError, "--ruby and FIELD are mutually exclusive" end unless LibGems::Specification.attribute_names.include? field then raise LibGems::CommandLineError, "no field %p on LibGems::Specification" % field.to_s end end if local? then if File.exist? gem then specs << LibGems::Format.from_file_by_path(gem).spec rescue nil end if specs.empty? then specs.push(*LibGems.source_index.search(dep)) end end if remote? then found = LibGems::SpecFetcher.fetcher.fetch dep specs.push(*found.map { |spec,| spec }) end if specs.empty? then alert_error "Unknown gem '#{gem}'" terminate_interaction 1 end output = lambda do |s| s = s.send field if field say case [:format] when :ruby then s.to_ruby when :marshal then Marshal.dump s else s.to_yaml end say "\n" end if [:all] then specs.each(&output) else spec = specs.sort_by { |s| s.version }.last output[spec] end end |
#usage ⇒ Object
:nodoc:
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# File 'lib/libgems/commands/specification_command.rb', line 53 def usage # :nodoc: "#{program_name} [GEMFILE] [FIELD]" end |