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# frozen_string_literal: true
require 'rubygems/command'
require 'rubygems/local_remote_options'
require 'rubygems/spec_fetcher'
require 'rubygems/version_option'
require 'rubygems/text'
class Gem::Commands::QueryCommand < Gem::Command
include Gem::Text
include Gem::LocalRemoteOptions
include Gem::VersionOption
def initialize(name = 'query',
summary = 'Query gem information in local or remote repositories')
super name, summary,
:name => //, :domain => :local, :details => false, :versions => true,
:installed => nil, :version => Gem::Requirement.default
add_option('-i', '--[no-]installed',
'Check for installed gem') do |value, options|
options[:installed] = value
end
add_option('-I', 'Equivalent to --no-installed') do |value, options|
options[:installed] = false
end
add_version_option command, "for use with --installed"
add_option('-n', '--name-matches REGEXP',
'Name of gem(s) to query on matches the',
'provided REGEXP') do |value, options|
options[:name] = /#{value}/i
end
add_option('-d', '--[no-]details',
'Display detailed information of gem(s)') do |value, options|
options[:details] = value
end
add_option( '--[no-]versions',
'Display only gem names') do |value, options|
options[:versions] = value
options[:details] = false unless value
end
add_option('-a', '--all',
'Display all gem versions') do |value, options|
options[:all] = value
end
add_option('-e', '--exact',
'Name of gem(s) to query on matches the',
'provided STRING') do |value, options|
options[:exact] = value
end
add_option( '--[no-]prerelease',
'Display prerelease versions') do |value, options|
options[:prerelease] = value
end
add_local_remote_options
end
def defaults_str # :nodoc:
"--local --name-matches // --no-details --versions --no-installed"
end
def description # :nodoc:
<<-EOF
The query command is the basis for the list and search commands.
You should really use the list and search commands instead. This command
is too hard to use.
EOF
end
def execute
exit_code = 0
if options[:args].to_a.empty? and options[:name].source.empty?
name = options[:name]
no_name = true
elsif !options[:name].source.empty?
name = Array(options[:name])
else
args = options[:args].to_a
name = options[:exact] ? args : args.map{|arg| /#{arg}/i }
end
prerelease = options[:prerelease]
unless options[:installed].nil? then
if no_name then
alert_error "You must specify a gem name"
exit_code |= 4
elsif name.count > 1
alert_error "You must specify only ONE gem!"
exit_code |= 4
else
installed = installed? name.first, options[:version]
installed = !installed unless options[:installed]
if installed then
say "true"
else
say "false"
exit_code |= 1
end
end
terminate_interaction exit_code
end
names = Array(name)
names.each { |n| show_gems n, prerelease }
end
private
def display_header type
if (ui.outs.tty? and Gem.configuration.verbose) or both? then
say
say "*** #{type} GEMS ***"
say
end
end
#Guts of original execute
def show_gems name, prerelease
req = Gem::Requirement.default
# TODO: deprecate for real
dep = Gem::Deprecate.skip_during { Gem::Dependency.new name, req }
dep.prerelease = prerelease
if local? then
if prerelease and not both? then
alert_warning "prereleases are always shown locally"
end
display_header 'LOCAL'
specs = Gem::Specification.find_all { |s|
s.name =~ name and req =~ s.version
}
spec_tuples = specs.map do |spec|
[spec.name_tuple, spec]
end
output_query_results spec_tuples
end
if remote? then
display_header 'REMOTE'
fetcher = Gem::SpecFetcher.fetcher
type = if options[:all]
if options[:prerelease]
:complete
else
:released
end
elsif options[:prerelease]
:prerelease
else
:latest
end
if name.respond_to?(:source) && name.source.empty?
spec_tuples = fetcher.detect(type) { true }
else
spec_tuples = fetcher.detect(type) do |name_tuple|
name === name_tuple.name
end
end
output_query_results spec_tuples
end
end
##
# Check if gem +name+ version +version+ is installed.
def installed?(name, req = Gem::Requirement.default)
Gem::Specification.any? { |s| s.name =~ name and req =~ s.version }
end
def output_query_results(spec_tuples)
output = []
versions = Hash.new { |h,name| h[name] = [] }
spec_tuples.each do |spec_tuple, source|
versions[spec_tuple.name] << [spec_tuple, source]
end
versions = versions.sort_by do |(n,_),_|
n.downcase
end
output_versions output, versions
say output.join(options[:details] ? "\n\n" : "\n")
end
def output_versions output, versions
versions.each do |gem_name, matching_tuples|
matching_tuples = matching_tuples.sort_by { |n,_| n.version }.reverse
platforms = Hash.new { |h,version| h[version] = [] }
matching_tuples.each do |n, _|
platforms[n.version] << n.platform if n.platform
end
seen = {}
matching_tuples.delete_if do |n,_|
if seen[n.version] then
true
else
seen[n.version] = true
false
end
end
output << clean_text(make_entry(matching_tuples, platforms))
end
end
def entry_details entry, detail_tuple, specs, platforms
return unless options[:details]
name_tuple, spec = detail_tuple
spec = spec.fetch_spec name_tuple if spec.respond_to? :fetch_spec
entry << "\n"
spec_platforms entry, platforms
spec_authors entry, spec
spec_homepage entry, spec
spec_license entry, spec
spec_loaded_from entry, spec, specs
spec_summary entry, spec
end
def entry_versions entry, name_tuples, platforms
return unless options[:versions]
list =
if platforms.empty? or options[:details] then
name_tuples.map { |n| n.version }.uniq
else
platforms.sort.reverse.map do |version, pls|
if pls == [Gem::Platform::RUBY] then
version
else
ruby = pls.delete Gem::Platform::RUBY
platform_list = [ruby, *pls.sort].compact
"#{version} #{platform_list.join ' '}"
end
end
end
entry << " (#{list.join ', '})"
end
def make_entry entry_tuples, platforms
detail_tuple = entry_tuples.first
name_tuples, specs = entry_tuples.flatten.partition do |item|
Gem::NameTuple === item
end
entry = [name_tuples.first.name]
entry_versions entry, name_tuples, platforms
entry_details entry, detail_tuple, specs, platforms
entry.join
end
def spec_authors entry, spec
authors = "Author#{spec.authors.length > 1 ? 's' : ''}: ".dup
authors << spec.authors.join(', ')
entry << format_text(authors, 68, 4)
end
def spec_homepage entry, spec
return if spec.homepage.nil? or spec.homepage.empty?
entry << "\n" << format_text("Homepage: #{spec.homepage}", 68, 4)
end
def spec_license entry, spec
return if spec.license.nil? or spec.license.empty?
licenses = "License#{spec.licenses.length > 1 ? 's' : ''}: ".dup
licenses << spec.licenses.join(', ')
entry << "\n" << format_text(licenses, 68, 4)
end
def spec_loaded_from entry, spec, specs
return unless spec.loaded_from
if specs.length == 1 then
default = spec.default_gem? ? ' (default)' : nil
entry << "\n" << " Installed at#{default}: #{spec.base_dir}"
else
label = 'Installed at'
specs.each do |s|
version = s.version.to_s
version << ', default' if s.default_gem?
entry << "\n" << " #{label} (#{version}): #{s.base_dir}"
label = ' ' * label.length
end
end
end
def spec_platforms entry, platforms
non_ruby = platforms.any? do |_, pls|
pls.any? { |pl| pl != Gem::Platform::RUBY }
end
return unless non_ruby
if platforms.length == 1 then
title = platforms.values.length == 1 ? 'Platform' : 'Platforms'
entry << " #{title}: #{platforms.values.sort.join ', '}\n"
else
entry << " Platforms:\n"
platforms.sort_by do |version,|
version
end.each do |version, pls|
label = " #{version}: "
data = format_text pls.sort.join(', '), 68, label.length
data[0, label.length] = label
entry << data << "\n"
end
end
end
def spec_summary entry, spec
summary = truncate_text(spec.summary, "the summary for #{spec.full_name}")
entry << "\n\n" << format_text(summary, 68, 4)
end
end