Initial commit: Tamigo CLI with Gitea Actions and global installation support
This commit is contained in:
Daniel Dybing
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from __future__ import annotations
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from .__main__ import cli_detect, query_yes_no
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__all__ = (
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"cli_detect",
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"query_yes_no",
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)
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from __future__ import annotations
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import argparse
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import sys
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import typing
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from json import dumps
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from os.path import abspath, basename, dirname, join, realpath
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from platform import python_version
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from unicodedata import unidata_version
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import charset_normalizer.md as md_module
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from charset_normalizer import from_fp
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from charset_normalizer.models import CliDetectionResult
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from charset_normalizer.version import __version__
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def query_yes_no(question: str, default: str = "yes") -> bool:
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"""Ask a yes/no question via input() and return the answer as a bool."""
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prompt = " [Y/n] " if default == "yes" else " [y/N] "
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while True:
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choice = input(question + prompt).strip().lower()
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if not choice:
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return default == "yes"
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if choice in ("y", "yes"):
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return True
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if choice in ("n", "no"):
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return False
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print("Please respond with 'y' or 'n'.")
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class FileType:
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"""Factory for creating file object types
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Instances of FileType are typically passed as type= arguments to the
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ArgumentParser add_argument() method.
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Keyword Arguments:
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- mode -- A string indicating how the file is to be opened. Accepts the
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same values as the builtin open() function.
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- bufsize -- The file's desired buffer size. Accepts the same values as
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the builtin open() function.
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- encoding -- The file's encoding. Accepts the same values as the
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builtin open() function.
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- errors -- A string indicating how encoding and decoding errors are to
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be handled. Accepts the same value as the builtin open() function.
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Backported from CPython 3.12
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"""
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def __init__(
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self,
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mode: str = "r",
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bufsize: int = -1,
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encoding: str | None = None,
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errors: str | None = None,
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):
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self._mode = mode
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self._bufsize = bufsize
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self._encoding = encoding
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self._errors = errors
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def __call__(self, string: str) -> typing.IO: # type: ignore[type-arg]
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# the special argument "-" means sys.std{in,out}
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if string == "-":
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if "r" in self._mode:
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return sys.stdin.buffer if "b" in self._mode else sys.stdin
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elif any(c in self._mode for c in "wax"):
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return sys.stdout.buffer if "b" in self._mode else sys.stdout
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else:
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msg = f'argument "-" with mode {self._mode}'
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raise ValueError(msg)
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# all other arguments are used as file names
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try:
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return open(string, self._mode, self._bufsize, self._encoding, self._errors)
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except OSError as e:
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message = f"can't open '{string}': {e}"
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raise argparse.ArgumentTypeError(message)
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def __repr__(self) -> str:
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args = self._mode, self._bufsize
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kwargs = [("encoding", self._encoding), ("errors", self._errors)]
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args_str = ", ".join(
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[repr(arg) for arg in args if arg != -1]
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+ [f"{kw}={arg!r}" for kw, arg in kwargs if arg is not None]
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)
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return f"{type(self).__name__}({args_str})"
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def cli_detect(argv: list[str] | None = None) -> int:
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"""
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CLI assistant using ARGV and ArgumentParser
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:param argv:
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:return: 0 if everything is fine, anything else equal trouble
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"""
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parser = argparse.ArgumentParser(
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description="The Real First Universal Charset Detector. "
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"Discover originating encoding used on text file. "
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"Normalize text to unicode."
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)
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parser.add_argument(
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"files", type=FileType("rb"), nargs="+", help="File(s) to be analysed"
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)
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parser.add_argument(
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"-v",
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"--verbose",
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action="store_true",
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default=False,
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dest="verbose",
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help="Display complementary information about file if any. "
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"Stdout will contain logs about the detection process.",
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)
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parser.add_argument(
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"-a",
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"--with-alternative",
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action="store_true",
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default=False,
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dest="alternatives",
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help="Output complementary possibilities if any. Top-level JSON WILL be a list.",
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)
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parser.add_argument(
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"-n",
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"--normalize",
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action="store_true",
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default=False,
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dest="normalize",
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help="Permit to normalize input file. If not set, program does not write anything.",
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)
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parser.add_argument(
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"-m",
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"--minimal",
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action="store_true",
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default=False,
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dest="minimal",
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help="Only output the charset detected to STDOUT. Disabling JSON output.",
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)
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parser.add_argument(
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"-r",
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"--replace",
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action="store_true",
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default=False,
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dest="replace",
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help="Replace file when trying to normalize it instead of creating a new one.",
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)
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parser.add_argument(
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"-f",
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"--force",
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action="store_true",
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default=False,
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dest="force",
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help="Replace file without asking if you are sure, use this flag with caution.",
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)
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parser.add_argument(
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"-i",
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"--no-preemptive",
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action="store_true",
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default=False,
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dest="no_preemptive",
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help="Disable looking at a charset declaration to hint the detector.",
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)
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parser.add_argument(
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"-t",
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"--threshold",
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action="store",
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default=0.2,
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type=float,
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dest="threshold",
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help="Define a custom maximum amount of noise allowed in decoded content. 0. <= noise <= 1.",
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)
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parser.add_argument(
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"--version",
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action="version",
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version="Charset-Normalizer {} - Python {} - Unicode {} - SpeedUp {}".format(
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__version__,
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python_version(),
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unidata_version,
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"OFF" if md_module.__file__.lower().endswith(".py") else "ON",
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),
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help="Show version information and exit.",
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)
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args = parser.parse_args(argv)
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if args.replace is True and args.normalize is False:
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if args.files:
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for my_file in args.files:
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my_file.close()
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print("Use --replace in addition of --normalize only.", file=sys.stderr)
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return 1
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if args.force is True and args.replace is False:
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if args.files:
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for my_file in args.files:
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my_file.close()
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print("Use --force in addition of --replace only.", file=sys.stderr)
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return 1
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if args.threshold < 0.0 or args.threshold > 1.0:
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if args.files:
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for my_file in args.files:
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my_file.close()
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print("--threshold VALUE should be between 0. AND 1.", file=sys.stderr)
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return 1
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x_ = []
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for my_file in args.files:
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matches = from_fp(
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my_file,
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threshold=args.threshold,
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explain=args.verbose,
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preemptive_behaviour=args.no_preemptive is False,
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)
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best_guess = matches.best()
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if best_guess is None:
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print(
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'Unable to identify originating encoding for "{}". {}'.format(
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my_file.name,
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(
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"Maybe try increasing maximum amount of chaos."
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if args.threshold < 1.0
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else ""
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),
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),
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file=sys.stderr,
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)
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x_.append(
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CliDetectionResult(
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abspath(my_file.name),
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None,
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[],
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[],
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"Unknown",
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[],
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False,
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1.0,
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0.0,
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None,
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True,
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)
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)
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else:
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x_.append(
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CliDetectionResult(
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abspath(my_file.name),
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best_guess.encoding,
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best_guess.encoding_aliases,
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[
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cp
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for cp in best_guess.could_be_from_charset
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if cp != best_guess.encoding
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],
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best_guess.language,
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best_guess.alphabets,
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best_guess.bom,
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best_guess.percent_chaos,
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best_guess.percent_coherence,
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None,
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True,
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)
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)
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if len(matches) > 1 and args.alternatives:
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for el in matches:
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if el != best_guess:
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x_.append(
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CliDetectionResult(
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abspath(my_file.name),
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el.encoding,
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el.encoding_aliases,
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[
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cp
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for cp in el.could_be_from_charset
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if cp != el.encoding
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],
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el.language,
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el.alphabets,
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el.bom,
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el.percent_chaos,
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el.percent_coherence,
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None,
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False,
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)
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)
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if args.normalize is True:
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if best_guess.encoding.startswith("utf") is True:
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print(
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'"{}" file does not need to be normalized, as it already came from unicode.'.format(
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my_file.name
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),
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file=sys.stderr,
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)
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if my_file.closed is False:
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my_file.close()
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continue
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dir_path = dirname(realpath(my_file.name))
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file_name = basename(realpath(my_file.name))
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o_: list[str] = file_name.split(".")
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if args.replace is False:
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o_.insert(-1, best_guess.encoding)
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if my_file.closed is False:
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my_file.close()
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elif (
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args.force is False
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and query_yes_no(
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'Are you sure to normalize "{}" by replacing it ?'.format(
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my_file.name
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),
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"no",
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)
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is False
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):
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if my_file.closed is False:
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my_file.close()
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continue
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try:
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x_[0].unicode_path = join(dir_path, ".".join(o_))
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with open(x_[0].unicode_path, "wb") as fp:
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fp.write(best_guess.output())
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except OSError as e:
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print(str(e), file=sys.stderr)
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if my_file.closed is False:
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my_file.close()
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return 2
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if my_file.closed is False:
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my_file.close()
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if args.minimal is False:
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print(
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dumps(
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[el.__dict__ for el in x_] if len(x_) > 1 else x_[0].__dict__,
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ensure_ascii=True,
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indent=4,
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)
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)
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else:
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for my_file in args.files:
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print(
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", ".join(
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[
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el.encoding or "undefined"
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for el in x_
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if el.path == abspath(my_file.name)
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]
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)
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)
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return 0
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if __name__ == "__main__":
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cli_detect()
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