import sys from pip.basecommand import Command BASE_COMPLETION = """ # pip %(shell)s completion start%(script)s# pip %(shell)s completion end """ COMPLETION_SCRIPTS = { 'bash': """ _pip_completion() { COMPREPLY=( $( COMP_WORDS="${COMP_WORDS[*]}" \\ COMP_CWORD=$COMP_CWORD \\ PIP_AUTO_COMPLETE=1 $1 ) ) } complete -o default -F _pip_completion pip """, 'zsh': """ function _pip_completion { local words cword read -Ac words read -cn cword reply=( $( COMP_WORDS="$words[*]" \\ COMP_CWORD=$(( cword-1 )) \\ PIP_AUTO_COMPLETE=1 $words[1] ) ) } compctl -K _pip_completion pip """} class CompletionCommand(Command): """A helper command to be used for command completion.""" name = 'completion' summary = 'A helper command to be used for command completion' hidden = True def __init__(self, *args, **kw): super(CompletionCommand, self).__init__(*args, **kw) self.parser.add_option( '--bash', '-b', action='store_const', const='bash', dest='shell', help='Emit completion code for bash') self.parser.add_option( '--zsh', '-z', action='store_const', const='zsh', dest='shell', help='Emit completion code for zsh') def run(self, options, args): """Prints the completion code of the given shell""" shells = COMPLETION_SCRIPTS.keys() shell_options = ['--' + shell for shell in sorted(shells)] if options.shell in shells: script = COMPLETION_SCRIPTS.get(options.shell, '') print(BASE_COMPLETION % {'script': script, 'shell': options.shell}) else: sys.stderr.write('ERROR: You must pass %s\n' % ' or '.join(shell_options))