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require 'English'
require 'rubygems/command'
require 'rubygems/version_option'
class Gem::Commands::ContentsCommand < Gem::Command
include Gem::VersionOption
def initialize
super 'contents', 'Display the contents of the installed gems',
:specdirs => [], :lib_only => false, :prefix => true
add_version_option
add_option( '--all',
"Contents for all gems") do |all, options|
options[:all] = all
end
add_option('-s', '--spec-dir a,b,c', Array,
"Search for gems under specific paths") do |spec_dirs, options|
options[:specdirs] = spec_dirs
end
add_option('-l', '--[no-]lib-only',
"Only return files in the Gem's lib_dirs") do |lib_only, options|
options[:lib_only] = lib_only
end
add_option( '--[no-]prefix',
"Don't include installed path prefix") do |prefix, options|
options[:prefix] = prefix
end
end
def arguments # :nodoc:
"GEMNAME name of gem to list contents for"
end
def defaults_str # :nodoc:
"--no-lib-only --prefix"
end
def usage # :nodoc:
"#{program_name} GEMNAME [GEMNAME ...]"
end
def execute
version = options[:version] || Gem::Requirement.default
spec_dirs = options[:specdirs].map do |i|
[i, File.join(i, "specifications")]
end.flatten
path_kind = if spec_dirs.empty? then
spec_dirs = Gem::Specification.dirs
"default gem paths"
else
"specified path"
end
gem_names = if options[:all] then
Gem::Specification.map(&:name)
else
get_all_gem_names
end
gem_names.each do |name|
# HACK: find_by_name fails for some reason... ARGH
# How many places must we embed our resolve logic?
spec = Gem::Specification.find_all_by_name(name, version).last
unless spec then
say "Unable to find gem '#{name}' in #{path_kind}"
if Gem.configuration.verbose then
say "\nDirectories searched:"
spec_dirs.each { |dir| say dir }
end
terminate_interaction 1 if gem_names.length == 1
end
if spec.default_gem?
files = spec.files.map do |file|
case file
when /\A#{spec.bindir}\//
[Gem::ConfigMap[:bindir], $POSTMATCH]
when /\.so\z/
[Gem::ConfigMap[:archdir], file]
else
[Gem::ConfigMap[:rubylibdir], file]
end
end
else
gem_path = spec.full_gem_path
extra = "/{#{spec.require_paths.join ','}}" if options[:lib_only]
glob = "#{gem_path}#{extra}/**/*"
prefix_re = /#{Regexp.escape(gem_path)}\//
files = Dir[glob].map do |file|
[gem_path, file.sub(prefix_re, "")]
end
end
files.sort.each do |prefix, basename|
absolute_path = File.join(prefix, basename)
next if File.directory? absolute_path
if options[:prefix]
say absolute_path
else
say basename
end
end
end
end
end
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