summaryrefslogtreecommitdiff
path: root/jni/ruby/lib/rubygems/commands/dependency_command.rb
diff options
context:
space:
mode:
authorJari Vetoniemi <jari.vetoniemi@indooratlas.com>2020-03-16 18:49:26 +0900
committerJari Vetoniemi <jari.vetoniemi@indooratlas.com>2020-03-30 00:39:06 +0900
commitfcbf63e62c627deae76c1b8cb8c0876c536ed811 (patch)
tree64cb17de3f41a2b6fef2368028fbd00349946994 /jni/ruby/lib/rubygems/commands/dependency_command.rb
Fresh start
Diffstat (limited to 'jni/ruby/lib/rubygems/commands/dependency_command.rb')
-rw-r--r--jni/ruby/lib/rubygems/commands/dependency_command.rb207
1 files changed, 207 insertions, 0 deletions
diff --git a/jni/ruby/lib/rubygems/commands/dependency_command.rb b/jni/ruby/lib/rubygems/commands/dependency_command.rb
new file mode 100644
index 0000000..4a54a3e
--- /dev/null
+++ b/jni/ruby/lib/rubygems/commands/dependency_command.rb
@@ -0,0 +1,207 @@
+require 'rubygems/command'
+require 'rubygems/local_remote_options'
+require 'rubygems/version_option'
+
+class Gem::Commands::DependencyCommand < Gem::Command
+
+ include Gem::LocalRemoteOptions
+ include Gem::VersionOption
+
+ def initialize
+ super 'dependency',
+ 'Show the dependencies of an installed gem',
+ :version => Gem::Requirement.default, :domain => :local
+
+ add_version_option
+ add_platform_option
+ add_prerelease_option
+
+ add_option('-R', '--[no-]reverse-dependencies',
+ 'Include reverse dependencies in the output') do
+ |value, options|
+ options[:reverse_dependencies] = value
+ end
+
+ add_option('-p', '--pipe',
+ "Pipe Format (name --version ver)") do |value, options|
+ options[:pipe_format] = value
+ end
+
+ add_local_remote_options
+ end
+
+ def arguments # :nodoc:
+ "REGEXP show dependencies for gems whose names start with REGEXP"
+ end
+
+ def defaults_str # :nodoc:
+ "--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} REGEXP"
+ 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
+
+ specs.uniq.sort
+ end
+
+ def gem_dependency args, version, prerelease # :nodoc:
+ args << '' if args.empty?
+
+ 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(*args)}/
+ end
+
+ dependency = Gem::Deprecate.skip_during {
+ Gem::Dependency.new pattern, version
+ }
+
+ dependency.prerelease = prerelease
+
+ dependency
+ end
+
+ 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
+
+ def display_readable specs, reverse # :nodoc:
+ 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
+
+ say response
+ end
+
+ def execute
+ ensure_local_only_reverse_dependencies
+
+ dependency =
+ gem_dependency options[:args], options[:version], options[:prerelease]
+
+ specs = fetch_specs dependency
+
+ reverse = reverse_dependencies specs
+
+ if options[:pipe_format] then
+ display_pipe specs
+ else
+ display_readable specs, reverse
+ end
+ end
+
+ 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 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
+ spec.dependencies.sort_by { |dep| dep.name }.each do |dep|
+ response << ' ' * level + " #{dep}\n"
+ end
+ end
+ 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 # :nodoc:
+ result = []
+
+ Gem::Specification.each do |sp|
+ sp.dependencies.each do |dep|
+ dep = Gem::Dependency.new(*dep) unless Gem::Dependency === dep
+
+ if spec.name == dep.name and
+ dep.requirement.satisfied_by?(spec.version) then
+ result << [sp.full_name, dep]
+ end
+ end
+ end
+
+ result
+ end
+
+end
+