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+#!/usr/bin/env python3
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+# PYTHON_ARGCOMPLETE_OK
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+
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+# Copyright 2012-2023, Andrey Kislyuk and argcomplete contributors.
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+# Licensed under the Apache License. See https://github.com/kislyuk/argcomplete for more info.
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+
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+"""
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+Activate the generic bash-completion script or zsh completion autoload function for the argcomplete module.
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+"""
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+
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+import argparse
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+import os
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+import shutil
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+import site
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+import subprocess
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+import sys
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+
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+import argcomplete
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+
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+# PEP 366
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+__package__ = "argcomplete.scripts"
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+
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+zsh_shellcode = """
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+# Begin added by argcomplete
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+fpath=( {zsh_fpath} "${{fpath[@]}}" )
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+# End added by argcomplete
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+"""
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+
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+bash_shellcode = """
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+# Begin added by argcomplete
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+source "{activator}"
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+# End added by argcomplete
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+"""
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+
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+parser = argparse.ArgumentParser(description=__doc__, formatter_class=argparse.RawDescriptionHelpFormatter)
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+parser.add_argument("-y", "--yes", help="automatically answer yes for all questions", action="store_true")
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+parser.add_argument("--dest", help='Specify the shell completion modules directory to install into, or "-" for stdout')
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+parser.add_argument("--user", help="Install into user directory", action="store_true")
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+argcomplete.autocomplete(parser)
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+args = None
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+
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+
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+def get_local_dir():
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+ try:
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+ return subprocess.check_output(["brew", "--prefix"]).decode().strip()
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+ except (FileNotFoundError, subprocess.CalledProcessError):
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+ return "/usr/local"
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+
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+
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+def get_zsh_system_dir():
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+ return f"{get_local_dir()}/share/zsh/site-functions"
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+
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+
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+def get_bash_system_dir():
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+ if "BASH_COMPLETION_COMPAT_DIR" in os.environ:
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+ return os.environ["BASH_COMPLETION_COMPAT_DIR"]
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+ elif sys.platform == "darwin":
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+ return f"{get_local_dir()}/etc/bash_completion.d" # created by homebrew
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+ else:
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+ return "/etc/bash_completion.d" # created by bash-completion
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+
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+
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+def get_activator_dir():
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+ return os.path.join(os.path.abspath(os.path.dirname(argcomplete.__file__)), "bash_completion.d")
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+
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+
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+def get_activator_path():
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+ return os.path.join(get_activator_dir(), "_python-argcomplete")
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+
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+
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+def install_to_destination(dest):
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+ activator = get_activator_path()
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+ if dest == "-":
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+ with open(activator) as fh:
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+ sys.stdout.write(fh.read())
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+ return
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+ destdir = os.path.dirname(dest)
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+ if not os.path.exists(destdir):
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+ try:
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+ os.makedirs(destdir, exist_ok=True)
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+ except Exception as e:
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+ parser.error(f"path {destdir} does not exist and could not be created: {e}")
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+ try:
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+ print(f"Installing {activator} to {dest}...", file=sys.stderr)
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+ shutil.copy(activator, dest)
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+ print("Installed.", file=sys.stderr)
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+ except Exception as e:
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+ parser.error(
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+ f"while installing to {dest}: {e}. Please run this command using sudo, or see --help for more options."
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+ )
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+
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+
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+def get_consent():
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+ assert args is not None
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+ if args.yes is True:
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+ return True
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+ while True:
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+ res = input("OK to proceed? [y/n] ")
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+ if res.lower() not in {"y", "n", "yes", "no"}:
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+ print('Please answer "yes" or "no".', file=sys.stderr)
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+ elif res.lower() in {"y", "yes"}:
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+ return True
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+ else:
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+ return False
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+
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+
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+def append_to_config_file(path, shellcode):
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+ if os.path.exists(path):
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+ with open(path, 'r') as fh:
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+ if shellcode in fh.read():
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+ print(f"The code already exists in the file {path}.", file=sys.stderr)
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+ return
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+ print(f"argcomplete needs to append to the file {path}. The following code will be appended:", file=sys.stderr)
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+ for line in shellcode.splitlines():
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+ print(">", line, file=sys.stderr)
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+ if not get_consent():
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+ print("Not added.", file=sys.stderr)
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+ return
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+ print(f"Adding shellcode to {path}...", file=sys.stderr)
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+ with open(path, "a") as fh:
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+ fh.write(shellcode)
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+ print("Added.", file=sys.stderr)
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+
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+
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+def link_user_rcfiles():
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+ # TODO: warn if running as superuser
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+ zsh_rcfile = os.path.join(os.path.expanduser(os.environ.get("ZDOTDIR", "~")), ".zshenv")
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+ append_to_config_file(zsh_rcfile, zsh_shellcode.format(zsh_fpath=get_activator_dir()))
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+
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+ bash_completion_user_file = os.path.expanduser("~/.bash_completion")
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+ append_to_config_file(bash_completion_user_file, bash_shellcode.format(activator=get_activator_path()))
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+
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+
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+def main():
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+ global args
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+ args = parser.parse_args()
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+
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+ destinations = []
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+
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+ if args.dest:
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+ if args.dest != "-" and not os.path.exists(args.dest):
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+ parser.error(f"directory {args.dest} was specified via --dest, but it does not exist")
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+ destinations.append(args.dest)
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+ elif site.ENABLE_USER_SITE and site.USER_SITE and site.USER_SITE in argcomplete.__file__:
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+ print(
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+ "Argcomplete was installed in the user site local directory. Defaulting to user installation.",
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+ file=sys.stderr,
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+ )
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+ link_user_rcfiles()
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+ elif sys.prefix != sys.base_prefix:
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+ print("Argcomplete was installed in a virtual environment. Defaulting to user installation.", file=sys.stderr)
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+ link_user_rcfiles()
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+ elif args.user:
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+ link_user_rcfiles()
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+ else:
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+ print("Defaulting to system-wide installation.", file=sys.stderr)
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+ destinations.append(f"{get_zsh_system_dir()}/_python-argcomplete")
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+ destinations.append(f"{get_bash_system_dir()}/python-argcomplete")
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+
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+ for destination in destinations:
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+ install_to_destination(destination)
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+
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+ if args.dest is None:
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+ print("Please restart your shell or source the installed file to activate it.", file=sys.stderr)
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+
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+
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+if __name__ == "__main__":
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+ sys.exit(main())
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