brew/Library/Homebrew/cmd/commands.rb
2019-12-02 11:32:33 -05:00

80 lines
2.0 KiB
Ruby

# frozen_string_literal: true
require "cli/parser"
module Homebrew
module_function
def commands_args
Homebrew::CLI::Parser.new do
usage_banner <<~EOS
`commands` [<options>]
Show lists of built-in and external commands.
EOS
switch :quiet,
description: "List only the names of commands without category headers."
switch "--include-aliases",
depends_on: "--quiet",
description: "Include aliases of internal commands."
switch :verbose
switch :debug
end
end
def commands
commands_args.parse
if args.quiet?
cmds = internal_commands
cmds += external_commands
cmds += internal_developer_commands
cmds += HOMEBREW_INTERNAL_COMMAND_ALIASES.keys if args.include_aliases?
puts Formatter.columns(cmds.sort)
return
end
# Find commands in Homebrew/cmd
ohai "Built-in commands", Formatter.columns(internal_commands.sort)
# Find commands in Homebrew/dev-cmd
puts
ohai "Built-in developer commands", Formatter.columns(internal_developer_commands.sort)
exts = external_commands
return if exts.empty?
# Find commands in the PATH
puts
ohai "External commands", Formatter.columns(exts)
end
def internal_commands
find_internal_commands HOMEBREW_LIBRARY_PATH/"cmd"
end
def internal_developer_commands
find_internal_commands HOMEBREW_LIBRARY_PATH/"dev-cmd"
end
def external_commands
cmd_paths = PATH.new(ENV["PATH"]).append(Tap.cmd_directories)
cmd_paths.each_with_object([]) do |path, cmds|
Dir["#{path}/brew-*"].each do |file|
next unless File.executable?(file)
cmd = File.basename(file, ".rb")[5..-1]
next if cmd.include?(".")
cmds << cmd
end
end.sort
end
def find_internal_commands(directory)
Pathname.glob(directory/"*")
.select(&:file?)
.map { |f| f.basename.to_s.sub(/\.(?:rb|sh)$/, "") }
end
end