summaryrefslogtreecommitdiff
path: root/jni/ruby/lib/rubygems/commands/specification_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/specification_command.rb
Fresh start
Diffstat (limited to 'jni/ruby/lib/rubygems/commands/specification_command.rb')
-rw-r--r--jni/ruby/lib/rubygems/commands/specification_command.rb145
1 files changed, 145 insertions, 0 deletions
diff --git a/jni/ruby/lib/rubygems/commands/specification_command.rb b/jni/ruby/lib/rubygems/commands/specification_command.rb
new file mode 100644
index 0000000..3bc02a9
--- /dev/null
+++ b/jni/ruby/lib/rubygems/commands/specification_command.rb
@@ -0,0 +1,145 @@
+require 'rubygems/command'
+require 'rubygems/local_remote_options'
+require 'rubygems/version_option'
+require 'rubygems/package'
+
+class Gem::Commands::SpecificationCommand < Gem::Command
+
+ include Gem::LocalRemoteOptions
+ include Gem::VersionOption
+
+ def initialize
+ Gem.load_yaml
+
+ super 'specification', 'Display gem specification (in yaml)',
+ :domain => :local, :version => Gem::Requirement.default,
+ :format => :yaml
+
+ add_version_option('examine')
+ add_platform_option
+ add_prerelease_option
+
+ add_option('--all', 'Output specifications for all versions of',
+ 'the gem') do |value, options|
+ options[:all] = true
+ end
+
+ add_option('--ruby', 'Output ruby format') do |value, options|
+ options[:format] = :ruby
+ end
+
+ add_option('--yaml', 'Output YAML format') do |value, options|
+ options[:format] = :yaml
+ end
+
+ add_option('--marshal', 'Output Marshal format') do |value, options|
+ options[:format] = :marshal
+ end
+
+ add_local_remote_options
+ end
+
+ def arguments # :nodoc:
+ <<-ARGS
+GEMFILE name of gem to show the gemspec for
+FIELD name of gemspec field to show
+ ARGS
+ end
+
+ def defaults_str # :nodoc:
+ "--local --version '#{Gem::Requirement.default}' --yaml"
+ end
+
+ def description # :nodoc:
+ <<-EOF
+The specification command allows you to extract the specification from
+a gem for examination.
+
+The specification can be output in YAML, ruby or Marshal formats.
+
+Specific fields in the specification can be extracted in YAML format:
+
+ $ gem spec rake summary
+ --- Ruby based make-like utility.
+ ...
+
+ EOF
+ end
+
+ def usage # :nodoc:
+ "#{program_name} [GEMFILE] [FIELD]"
+ end
+
+ def execute
+ specs = []
+ gem = options[:args].shift
+
+ unless gem then
+ raise Gem::CommandLineError,
+ "Please specify a gem name or file on the command line"
+ end
+
+ case v = options[:version]
+ when String
+ req = Gem::Requirement.create v
+ when Gem::Requirement
+ req = v
+ else
+ raise Gem::CommandLineError, "Unsupported version type: '#{v}'"
+ end
+
+ if !req.none? and options[:all]
+ alert_error "Specify --all or -v, not both"
+ terminate_interaction 1
+ end
+
+ if options[:all]
+ dep = Gem::Dependency.new gem
+ else
+ dep = Gem::Dependency.new gem, req
+ end
+
+ field = get_one_optional_argument
+
+ raise Gem::CommandLineError, "--ruby and FIELD are mutually exclusive" if
+ field and options[:format] == :ruby
+
+ if local? then
+ if File.exist? gem then
+ specs << Gem::Package.new(gem).spec rescue nil
+ end
+
+ if specs.empty? then
+ specs.push(*dep.matching_specs)
+ end
+ end
+
+ if remote? then
+ dep.prerelease = options[:prerelease]
+ found, _ = Gem::SpecFetcher.fetcher.spec_for_dependency dep
+
+ specs.push(*found.map { |spec,| spec })
+ end
+
+ if specs.empty? then
+ alert_error "No gem matching '#{dep}' found"
+ terminate_interaction 1
+ end
+
+ unless options[:all] then
+ specs = [specs.max_by { |s| s.version }]
+ end
+
+ specs.each do |s|
+ s = s.send field if field
+
+ say case options[:format]
+ when :ruby then s.to_ruby
+ when :marshal then Marshal.dump s
+ else s.to_yaml
+ end
+
+ say "\n"
+ end
+ end
+end