diff options
Diffstat (limited to 'lib/rubygems/commands/dependency_command.rb')
| -rw-r--r-- | lib/rubygems/commands/dependency_command.rb | 158 |
1 files changed, 105 insertions, 53 deletions
diff --git a/lib/rubygems/commands/dependency_command.rb b/lib/rubygems/commands/dependency_command.rb index 4690b13a94..c5d6dd7d70 100644 --- a/lib/rubygems/commands/dependency_command.rb +++ b/lib/rubygems/commands/dependency_command.rb @@ -38,89 +38,121 @@ class Gem::Commands::DependencyCommand < Gem::Command "--local --version '#{Gem::Requirement.default}' --no-reverse-dependencies" end + def description # :nodoc: + <<-EOF +The dependency commands lists which other gems a given gem depends on. For +local gems only the reverse dependencies can be shown (which gems depend on +the named gem). + +The dependency list can be displayed in a format suitable for piping for +use with other commands. + EOF + end + def usage # :nodoc: "#{program_name} GEMNAME" end - def execute - if options[:reverse_dependencies] and remote? and not local? then - alert_error 'Only reverse dependencies for local gems are supported.' - terminate_interaction 1 - end + def fetch_remote_specs dependency # :nodoc: + fetcher = Gem::SpecFetcher.fetcher + + ss, = fetcher.spec_for_dependency dependency + + ss.map { |spec, _| spec } + end + + def fetch_specs dependency # :nodoc: + specs = [] + + specs.concat dependency.matching_specs if local? + specs.concat fetch_remote_specs dependency if remote? + + ensure_specs specs - options[:args] << '' if options[:args].empty? + specs.uniq.sort + end + + def gem_dependency args, version, prerelease # :nodoc: + args << '' if args.empty? - pattern = if options[:args].length == 1 and - options[:args].first =~ /\A\/(.*)\/(i)?\z/m then + pattern = if args.length == 1 and args.first =~ /\A\/(.*)\/(i)?\z/m then flags = $2 ? Regexp::IGNORECASE : nil Regexp.new $1, flags else - /\A#{Regexp.union(*options[:args])}/ + /\A#{Regexp.union(*args)}/ end - # TODO: deprecate for real damnit dependency = Gem::Deprecate.skip_during { - Gem::Dependency.new pattern, options[:version] + Gem::Dependency.new pattern, version } - dependency.prerelease = options[:prerelease] - specs = [] + dependency.prerelease = prerelease - specs.concat dependency.matching_specs if local? + dependency + end - if remote? and not options[:reverse_dependencies] then - fetcher = Gem::SpecFetcher.fetcher + def display_pipe specs # :nodoc: + specs.each do |spec| + unless spec.dependencies.empty? then + spec.dependencies.sort_by { |dep| dep.name }.each do |dep| + say "#{dep.name} --version '#{dep.requirement}'" + end + end + end + end - ss, _ = fetcher.spec_for_dependency dependency + def display_readable specs, reverse # :nodoc: + response = '' - ss.each { |s,o| specs << s } + specs.each do |spec| + response << print_dependencies(spec) + unless reverse[spec.full_name].empty? then + response << " Used by\n" + reverse[spec.full_name].each do |sp, dep| + response << " #{sp} (#{dep})\n" + end + end + response << "\n" end - if specs.empty? then - patterns = options[:args].join ',' - say "No gems found matching #{patterns} (#{options[:version]})" if - Gem.configuration.verbose + say response + end - terminate_interaction 1 - end + def execute + ensure_local_only_reverse_dependencies - specs = specs.uniq.sort + dependency = + gem_dependency options[:args], options[:version], options[:prerelease] - reverse = Hash.new { |h, k| h[k] = [] } + specs = fetch_specs dependency - if options[:reverse_dependencies] then - specs.each do |spec| - reverse[spec.full_name] = find_reverse_dependencies spec - end - end + reverse = reverse_dependencies specs if options[:pipe_format] then - specs.each do |spec| - unless spec.dependencies.empty? - spec.dependencies.sort_by { |dep| dep.name }.each do |dep| - say "#{dep.name} --version '#{dep.requirement}'" - end - end - end + display_pipe specs else - response = '' - - specs.each do |spec| - response << print_dependencies(spec) - unless reverse[spec.full_name].empty? then - response << " Used by\n" - reverse[spec.full_name].each do |sp, dep| - response << " #{sp} (#{dep})\n" - end - end - response << "\n" - end + display_readable specs, reverse + end + end - say response + def ensure_local_only_reverse_dependencies # :nodoc: + if options[:reverse_dependencies] and remote? and not local? then + alert_error 'Only reverse dependencies for local gems are supported.' + terminate_interaction 1 end end - def print_dependencies(spec, level = 0) + def ensure_specs specs # :nodoc: + return unless specs.empty? + + patterns = options[:args].join ',' + say "No gems found matching #{patterns} (#{options[:version]})" if + Gem.configuration.verbose + + terminate_interaction 1 + end + + def print_dependencies(spec, level = 0) # :nodoc: response = '' response << ' ' * level + "Gem #{spec.full_name}\n" unless spec.dependencies.empty? then @@ -131,10 +163,30 @@ class Gem::Commands::DependencyCommand < Gem::Command response end + def remote_specs dependency # :nodoc: + fetcher = Gem::SpecFetcher.fetcher + + ss, _ = fetcher.spec_for_dependency dependency + + ss.map { |s,o| s } + end + + def reverse_dependencies specs # :nodoc: + reverse = Hash.new { |h, k| h[k] = [] } + + return reverse unless options[:reverse_dependencies] + + specs.each do |spec| + reverse[spec.full_name] = find_reverse_dependencies spec + end + + reverse + end + ## # Returns an Array of [specification, dep] that are satisfied by +spec+. - def find_reverse_dependencies(spec) + def find_reverse_dependencies spec # :nodoc: result = [] Gem::Specification.each do |sp| |