query_command.rb

query_command.rb | 9.3 KB | Satir: 0 | rb Geri

# 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
    gem_names = Array(options[:name])

if !args.empty?
      gem_names = options[:exact] ? args.map{|arg| /\A#{Regexp.escape(arg)}\Z/ } : args.map{|arg| /#{arg}/i }
    end

terminate_interaction(check_installed_gems(gem_names)) if check_installed_gems?

gem_names.each { |n| show_gems(n) }
  end

private

def check_installed_gems(gem_names)
    exit_code = 0

if args.empty? && !gem_name?
      alert_error "You must specify a gem name"
      exit_code = 4
    elsif gem_names.count > 1
      alert_error "You must specify only ONE gem!"
      exit_code = 4
    else
      installed = installed?(gem_names.first, options[:version])
      installed = !installed unless options[:installed]

say(installed)
      exit_code = 1 if !installed
    end

exit_code
  end

def check_installed_gems?
    !options[:installed].nil?
  end

def gem_name?
    !options[:name].source.empty?
  end

def prerelease
    options[:prerelease]
  end

def show_prereleases?
    prerelease.nil? || prerelease
  end

def args
    options[:args].to_a
  end

def display_header(type)
    if (ui.outs.tty? and Gem.configuration.verbose) or both?
      say
      say "*** #{type} GEMS ***"
      say
    end
  end

#Guts of original execute
  def show_gems(name)
    show_local_gems(name)  if local?
    show_remote_gems(name) if remote?
  end

def show_local_gems(name, req = Gem::Requirement.default)
    display_header("LOCAL")

specs = Gem::Specification.find_all do |s|
      s.name =~ name and req =~ s.version
    end

dep = Gem::Deprecate.skip_during { Gem::Dependency.new name, req }
    specs.select! do |s|
      dep.match?(s.name, s.version, show_prereleases?)
    end

spec_tuples = specs.map do |spec|
      [spec.name_tuple, spec]
    end

output_query_results(spec_tuples)
  end

def show_remote_gems(name)
    display_header("REMOTE")

fetcher = Gem::SpecFetcher.fetcher

spec_tuples = if name.respond_to?(:source) && name.source.empty?
                    fetcher.detect(specs_type) { true }
                  else
                    fetcher.detect(specs_type) do |name_tuple|
                      name === name_tuple.name
                    end
                  end

output_query_results(spec_tuples)
  end

def specs_type
    if options[:all]
      if options[:prerelease]
        :complete
      else
        :released
      end
    elsif options[:prerelease]
      :prerelease
    else
      :latest
    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]
          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, specs)
    return unless options[:versions]

list =
      if platforms.empty? or options[:details]
        name_tuples.map { |n| n.version }.uniq
      else
        platforms.sort.reverse.map do |version, pls|
          out = version.to_s

if options[:domain] == :local
            default = specs.any? do |s|
              !s.is_a?(Gem::Source) && s.version == version && s.default_gem?
            end
            out = "default: #{out}" if default
          end

if pls != [Gem::Platform::RUBY]
            platform_list = [pls.delete(Gem::Platform::RUBY), *pls.sort].compact
            out = platform_list.unshift(out).join(' ')
          end

out
        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, specs)
    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
      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
      title = platforms.values.length == 1 ? 'Platform' : 'Platforms'
      entry << "    #{title}: #{platforms.values.sort.join(', ')}\n"
    else
      entry << "    Platforms:\n"

sorted_platforms = platforms.sort_by { |version,| version }

sorted_platforms.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

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