brew/Library/Homebrew/cmd/commands.rb
Mike McQuaid 7a68b4a3f9 Refactor command handling code
Don’t rely on having external commands always present in the PATH in
order to find them. Instead, provide an accessory method to Tap so
they can be added and used when needed.

While we’re here, do some general refactoring and cleanup of the
command code in these places.
2017-11-05 15:37:57 +00:00

64 lines
1.7 KiB
Ruby

#: * `commands` [`--quiet` [`--include-aliases`]]:
#: Show a list of built-in and external commands.
#:
#: If `--quiet` is passed, list only the names of commands without the header.
#: With `--include-aliases`, the aliases of internal commands will be included.
module Homebrew
module_function
def commands
if ARGV.include? "--quiet"
cmds = internal_commands
cmds += external_commands
cmds += internal_developer_commands
cmds += HOMEBREW_INTERNAL_COMMAND_ALIASES.keys if ARGV.include? "--include-aliases"
puts Formatter.columns(cmds.sort)
return
end
# Find commands in Homebrew/cmd
puts "Built-in commands"
puts Formatter.columns(internal_commands.sort)
# Find commands in Homebrew/dev-cmd
puts
puts "Built-in developer commands"
puts Formatter.columns(internal_developer_commands.sort)
exts = external_commands
return if exts.empty?
# Find commands in the PATH
puts
puts "External commands"
puts 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