brew/Library/Homebrew/cask/cmd/internal_stanza.rb
2020-08-26 03:13:59 +02:00

121 lines
3.3 KiB
Ruby

# frozen_string_literal: true
require "cask/dsl"
module Cask
class Cmd
# Implementation of the `brew cask _stanza` command.
#
# @api private
class InternalStanza < AbstractInternalCommand
# Syntax
#
# brew cask _stanza <stanza_name> [ --quiet ] [ --table | --yaml ] [ <cask_token> ... ]
#
# If no tokens are given, then data for all Casks is returned.
#
# The pseudo-stanza "artifacts" is available.
#
# On failure, a blank line is returned on the standard output.
#
ARTIFACTS =
(DSL::ORDINARY_ARTIFACT_CLASSES.map(&:dsl_key) +
DSL::ARTIFACT_BLOCK_CLASSES.map(&:dsl_key)).freeze
def self.min_named
1
end
def self.banner_args
" <stanza_name> [<cask>]"
end
def self.description
<<~EOS
Extract and render a specific stanza for the given <cask>.
Examples:
`brew cask _stanza appcast --table`
`brew cask _stanza app --table alfred google-chrome vagrant`
`brew cask _stanza url --table alfred google-chrome vagrant`
`brew cask _stanza version --table alfred google-chrome vagrant`
`brew cask _stanza artifacts --table alfred google-chrome vagrant`
`brew cask _stanza artifacts --table --yaml alfred google-chrome vagrant`
EOS
end
def self.parser
super do
switch "--table",
description: "Print stanza in table format."
switch "--quiet",
description: ""
switch "--yaml",
description: ""
switch "--inspect",
description: ""
end
end
attr_accessor :format, :stanza
private :format, :format=
private :stanza, :stanza=
def initialize(*)
super
named = args.named.dup
@stanza = named.shift.to_sym
args.freeze_named_args!(named)
@format = :to_yaml if args.yaml?
return if DSL::DSL_METHODS.include?(stanza)
raise UsageError, <<~EOS
Unknown/unsupported stanza: '#{stanza}'
Check cask reference for supported stanzas.
EOS
end
def run
if ARTIFACTS.include?(stanza)
artifact_name = stanza
@stanza = :artifacts
end
casks(alternative: -> { Cask.to_a }).each do |cask|
print "#{cask}\t" if args.table?
begin
value = cask.send(stanza)
rescue
opoo "failure calling '#{stanza}' on Cask '#{cask}'" unless args.quiet?
puts ""
next
end
if stanza == :artifacts
value = Hash[value.map { |v| [v.class.dsl_key, v.to_s] }]
value = value[artifact_name] if artifact_name
end
if value.nil? || (value.respond_to?(:empty?) && value.empty?)
stanza_name = artifact_name || stanza
raise CaskError, "no such stanza '#{stanza_name}' on Cask '#{cask}'"
end
if format
puts value.send(format)
elsif value.is_a?(Symbol)
puts value.inspect
else
puts value.to_s
end
end
end
end
end
end