92 lines
2.8 KiB
Python
92 lines
2.8 KiB
Python
import sys
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import textwrap
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from optparse import Values
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from typing import List
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from pip._internal.cli.base_command import Command
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from pip._internal.cli.status_codes import SUCCESS
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from pip._internal.utils.misc import get_prog
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BASE_COMPLETION = """
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# pip {shell} completion start{script}# pip {shell} completion end
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"""
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COMPLETION_SCRIPTS = {
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'bash': """
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_pip_completion()
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{{
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COMPREPLY=( $( COMP_WORDS="${{COMP_WORDS[*]}}" \\
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COMP_CWORD=$COMP_CWORD \\
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PIP_AUTO_COMPLETE=1 $1 2>/dev/null ) )
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}}
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complete -o default -F _pip_completion {prog}
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""",
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'zsh': """
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function _pip_completion {{
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local words cword
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read -Ac words
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read -cn cword
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reply=( $( COMP_WORDS="$words[*]" \\
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COMP_CWORD=$(( cword-1 )) \\
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PIP_AUTO_COMPLETE=1 $words[1] 2>/dev/null ))
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}}
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compctl -K _pip_completion {prog}
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""",
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'fish': """
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function __fish_complete_pip
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set -lx COMP_WORDS (commandline -o) ""
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set -lx COMP_CWORD ( \\
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math (contains -i -- (commandline -t) $COMP_WORDS)-1 \\
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)
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set -lx PIP_AUTO_COMPLETE 1
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string split \\ -- (eval $COMP_WORDS[1])
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end
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complete -fa "(__fish_complete_pip)" -c {prog}
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""",
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}
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class CompletionCommand(Command):
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"""A helper command to be used for command completion."""
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ignore_require_venv = True
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def add_options(self) -> None:
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self.cmd_opts.add_option(
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'--bash', '-b',
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action='store_const',
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const='bash',
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dest='shell',
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help='Emit completion code for bash')
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self.cmd_opts.add_option(
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'--zsh', '-z',
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action='store_const',
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const='zsh',
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dest='shell',
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help='Emit completion code for zsh')
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self.cmd_opts.add_option(
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'--fish', '-f',
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action='store_const',
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const='fish',
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dest='shell',
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help='Emit completion code for fish')
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self.parser.insert_option_group(0, self.cmd_opts)
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def run(self, options: Values, args: List[str]) -> int:
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"""Prints the completion code of the given shell"""
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shells = COMPLETION_SCRIPTS.keys()
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shell_options = ['--' + shell for shell in sorted(shells)]
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if options.shell in shells:
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script = textwrap.dedent(
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COMPLETION_SCRIPTS.get(options.shell, '').format(
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prog=get_prog())
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)
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print(BASE_COMPLETION.format(script=script, shell=options.shell))
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return SUCCESS
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else:
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sys.stderr.write(
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'ERROR: You must pass {}\n' .format(' or '.join(shell_options))
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)
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return SUCCESS
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