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135 lines
4.2 KiB
135 lines
4.2 KiB
import os
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import sys
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import typing
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from decimal import Decimal
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from knowit import VIDEO_EXTENSIONS
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if sys.version_info < (3, 8):
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OS_FAMILY = str
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else:
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OS_FAMILY = typing.Literal['windows', 'macos', 'unix']
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OPTION_MAP = typing.Dict[str, typing.Tuple[str]]
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def recurse_paths(
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paths: typing.Union[str, typing.Iterable[str]]
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) -> typing.List[str]:
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"""Return a list of video files."""
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enc_paths = []
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if isinstance(paths, str):
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paths = [p.strip() for p in paths.split(',')] if ',' in paths else paths.split()
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for path in paths:
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if os.path.isfile(path):
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enc_paths.append(path)
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if os.path.isdir(path):
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for root, directories, filenames in os.walk(path):
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for filename in filenames:
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if os.path.splitext(filename)[1] in VIDEO_EXTENSIONS:
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full_path = os.path.join(root, filename)
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enc_paths.append(full_path)
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# Lets remove any dupes since mediainfo is rather slow.
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unique_paths = dict.fromkeys(enc_paths)
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return list(unique_paths)
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def to_dict(
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obj: typing.Any,
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classkey: typing.Optional[typing.Type] = None
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) -> typing.Union[str, dict, list]:
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"""Transform an object to dict."""
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if isinstance(obj, str):
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return obj
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elif isinstance(obj, dict):
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data = {}
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for (k, v) in obj.items():
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data[k] = to_dict(v, classkey)
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return data
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elif hasattr(obj, '_ast'):
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return to_dict(obj._ast())
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elif hasattr(obj, '__iter__'):
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return [to_dict(v, classkey) for v in obj]
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elif hasattr(obj, '__dict__'):
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values = [(key, to_dict(value, classkey))
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for key, value in obj.__dict__.items() if not callable(value) and not key.startswith('_')]
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data = {k: v for k, v in values if v is not None}
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if classkey is not None and hasattr(obj, '__class__'):
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data[classkey] = obj.__class__.__name__
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return data
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return obj
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def detect_os() -> OS_FAMILY:
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"""Detect os family: windows, macos or unix."""
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if os.name in ('nt', 'dos', 'os2', 'ce'):
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return 'windows'
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if sys.platform == 'darwin':
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return 'macos'
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return 'unix'
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def define_candidate(
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locations: OPTION_MAP,
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names: OPTION_MAP,
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os_family: typing.Optional[OS_FAMILY] = None,
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suggested_path: typing.Optional[str] = None,
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) -> typing.Generator[str, None, None]:
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"""Select family-specific options and generate possible candidates."""
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os_family = os_family or detect_os()
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family_names = names[os_family]
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all_locations = (suggested_path, ) + locations[os_family]
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yield from build_candidates(all_locations, family_names)
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def build_candidates(
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locations: typing.Iterable[typing.Optional[str]],
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names: typing.Iterable[str],
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) -> typing.Generator[str, None, None]:
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"""Build candidate names."""
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for location in locations:
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if not location:
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continue
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if location == '__PATH__':
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yield from build_path_candidates(names)
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elif os.path.isfile(location):
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yield location
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elif os.path.isdir(location):
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for name in names:
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cmd = os.path.join(location, name)
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if os.path.isfile(cmd):
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yield cmd
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def build_path_candidates(
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names: typing.Iterable[str],
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os_family: typing.Optional[OS_FAMILY] = None,
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) -> typing.Generator[str, None, None]:
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"""Build candidate names on environment PATH."""
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os_family = os_family or detect_os()
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if os_family != 'windows':
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yield from names
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else:
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paths = os.environ['PATH'].split(';')
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yield from (
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os.path.join(path, name)
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for path in paths
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for name in names
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)
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def round_decimal(value: Decimal, min_digits=0, max_digits: typing.Optional[int] = None):
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exponent = int(value.normalize().as_tuple().exponent)
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if exponent >= 0:
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return round(value, min_digits)
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decimal_places = abs(exponent)
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if decimal_places <= min_digits:
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return round(value, min_digits)
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if max_digits:
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return round(value, min(max_digits, decimal_places))
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return value
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