Update 2025-04-13_16:26:34
This commit is contained in:
@ -0,0 +1,171 @@
|
||||
"""Logic that powers autocompletion installed by ``pip completion``.
|
||||
"""
|
||||
|
||||
import optparse
|
||||
import os
|
||||
import sys
|
||||
from itertools import chain
|
||||
from typing import Any, Iterable, List, Optional
|
||||
|
||||
from pip._internal.cli.main_parser import create_main_parser
|
||||
from pip._internal.commands import commands_dict, create_command
|
||||
from pip._internal.metadata import get_default_environment
|
||||
|
||||
|
||||
def autocomplete() -> None:
|
||||
"""Entry Point for completion of main and subcommand options."""
|
||||
# Don't complete if user hasn't sourced bash_completion file.
|
||||
if "PIP_AUTO_COMPLETE" not in os.environ:
|
||||
return
|
||||
cwords = os.environ["COMP_WORDS"].split()[1:]
|
||||
cword = int(os.environ["COMP_CWORD"])
|
||||
try:
|
||||
current = cwords[cword - 1]
|
||||
except IndexError:
|
||||
current = ""
|
||||
|
||||
parser = create_main_parser()
|
||||
subcommands = list(commands_dict)
|
||||
options = []
|
||||
|
||||
# subcommand
|
||||
subcommand_name: Optional[str] = None
|
||||
for word in cwords:
|
||||
if word in subcommands:
|
||||
subcommand_name = word
|
||||
break
|
||||
# subcommand options
|
||||
if subcommand_name is not None:
|
||||
# special case: 'help' subcommand has no options
|
||||
if subcommand_name == "help":
|
||||
sys.exit(1)
|
||||
# special case: list locally installed dists for show and uninstall
|
||||
should_list_installed = not current.startswith("-") and subcommand_name in [
|
||||
"show",
|
||||
"uninstall",
|
||||
]
|
||||
if should_list_installed:
|
||||
env = get_default_environment()
|
||||
lc = current.lower()
|
||||
installed = [
|
||||
dist.canonical_name
|
||||
for dist in env.iter_installed_distributions(local_only=True)
|
||||
if dist.canonical_name.startswith(lc)
|
||||
and dist.canonical_name not in cwords[1:]
|
||||
]
|
||||
# if there are no dists installed, fall back to option completion
|
||||
if installed:
|
||||
for dist in installed:
|
||||
print(dist)
|
||||
sys.exit(1)
|
||||
|
||||
should_list_installables = (
|
||||
not current.startswith("-") and subcommand_name == "install"
|
||||
)
|
||||
if should_list_installables:
|
||||
for path in auto_complete_paths(current, "path"):
|
||||
print(path)
|
||||
sys.exit(1)
|
||||
|
||||
subcommand = create_command(subcommand_name)
|
||||
|
||||
for opt in subcommand.parser.option_list_all:
|
||||
if opt.help != optparse.SUPPRESS_HELP:
|
||||
for opt_str in opt._long_opts + opt._short_opts:
|
||||
options.append((opt_str, opt.nargs))
|
||||
|
||||
# filter out previously specified options from available options
|
||||
prev_opts = [x.split("=")[0] for x in cwords[1 : cword - 1]]
|
||||
options = [(x, v) for (x, v) in options if x not in prev_opts]
|
||||
# filter options by current input
|
||||
options = [(k, v) for k, v in options if k.startswith(current)]
|
||||
# get completion type given cwords and available subcommand options
|
||||
completion_type = get_path_completion_type(
|
||||
cwords,
|
||||
cword,
|
||||
subcommand.parser.option_list_all,
|
||||
)
|
||||
# get completion files and directories if ``completion_type`` is
|
||||
# ``<file>``, ``<dir>`` or ``<path>``
|
||||
if completion_type:
|
||||
paths = auto_complete_paths(current, completion_type)
|
||||
options = [(path, 0) for path in paths]
|
||||
for option in options:
|
||||
opt_label = option[0]
|
||||
# append '=' to options which require args
|
||||
if option[1] and option[0][:2] == "--":
|
||||
opt_label += "="
|
||||
print(opt_label)
|
||||
else:
|
||||
# show main parser options only when necessary
|
||||
|
||||
opts = [i.option_list for i in parser.option_groups]
|
||||
opts.append(parser.option_list)
|
||||
flattened_opts = chain.from_iterable(opts)
|
||||
if current.startswith("-"):
|
||||
for opt in flattened_opts:
|
||||
if opt.help != optparse.SUPPRESS_HELP:
|
||||
subcommands += opt._long_opts + opt._short_opts
|
||||
else:
|
||||
# get completion type given cwords and all available options
|
||||
completion_type = get_path_completion_type(cwords, cword, flattened_opts)
|
||||
if completion_type:
|
||||
subcommands = list(auto_complete_paths(current, completion_type))
|
||||
|
||||
print(" ".join([x for x in subcommands if x.startswith(current)]))
|
||||
sys.exit(1)
|
||||
|
||||
|
||||
def get_path_completion_type(
|
||||
cwords: List[str], cword: int, opts: Iterable[Any]
|
||||
) -> Optional[str]:
|
||||
"""Get the type of path completion (``file``, ``dir``, ``path`` or None)
|
||||
|
||||
:param cwords: same as the environmental variable ``COMP_WORDS``
|
||||
:param cword: same as the environmental variable ``COMP_CWORD``
|
||||
:param opts: The available options to check
|
||||
:return: path completion type (``file``, ``dir``, ``path`` or None)
|
||||
"""
|
||||
if cword < 2 or not cwords[cword - 2].startswith("-"):
|
||||
return None
|
||||
for opt in opts:
|
||||
if opt.help == optparse.SUPPRESS_HELP:
|
||||
continue
|
||||
for o in str(opt).split("/"):
|
||||
if cwords[cword - 2].split("=")[0] == o:
|
||||
if not opt.metavar or any(
|
||||
x in ("path", "file", "dir") for x in opt.metavar.split("/")
|
||||
):
|
||||
return opt.metavar
|
||||
return None
|
||||
|
||||
|
||||
def auto_complete_paths(current: str, completion_type: str) -> Iterable[str]:
|
||||
"""If ``completion_type`` is ``file`` or ``path``, list all regular files
|
||||
and directories starting with ``current``; otherwise only list directories
|
||||
starting with ``current``.
|
||||
|
||||
:param current: The word to be completed
|
||||
:param completion_type: path completion type(``file``, ``path`` or ``dir``)
|
||||
:return: A generator of regular files and/or directories
|
||||
"""
|
||||
directory, filename = os.path.split(current)
|
||||
current_path = os.path.abspath(directory)
|
||||
# Don't complete paths if they can't be accessed
|
||||
if not os.access(current_path, os.R_OK):
|
||||
return
|
||||
filename = os.path.normcase(filename)
|
||||
# list all files that start with ``filename``
|
||||
file_list = (
|
||||
x for x in os.listdir(current_path) if os.path.normcase(x).startswith(filename)
|
||||
)
|
||||
for f in file_list:
|
||||
opt = os.path.join(current_path, f)
|
||||
comp_file = os.path.normcase(os.path.join(directory, f))
|
||||
# complete regular files when there is not ``<dir>`` after option
|
||||
# complete directories when there is ``<file>``, ``<path>`` or
|
||||
# ``<dir>``after option
|
||||
if completion_type != "dir" and os.path.isfile(opt):
|
||||
yield comp_file
|
||||
elif os.path.isdir(opt):
|
||||
yield os.path.join(comp_file, "")
|
Reference in New Issue
Block a user