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#!/usr/bin/env python3
import collections
import enum
import importlib
from typing import Dict, Optional
from . import exiftool, video
# make pyflakes happy
assert Dict
assert Optional
# A set of extension that aren't supported, despite matching a supported mimetype
UNSUPPORTED_EXTENSIONS = {
'.asc',
'.bat',
'.brf',
'.c',
'.h',
'.ksh',
'.pl',
'.pot',
'.rdf',
'.srt',
'.wsdl',
'.xpdl',
'.xsd',
'.xsl',
}
DEPENDENCIES = {
'Cairo': 'cairo',
'PyGobject': 'gi',
'GdkPixbuf from PyGobject': 'gi.repository.GdkPixbuf',
'Poppler from PyGobject': 'gi.repository.Poppler',
'GLib from PyGobject': 'gi.repository.GLib',
'Mutagen': 'mutagen',
}
CMD_DEPENDENCIES = {
'Exiftool': exiftool._get_exiftool_path,
'Ffmpeg': video._get_ffmpeg_path,
}
def check_dependencies() -> Dict[str, bool]:
ret = collections.defaultdict(bool) # type: Dict[str, bool]
for key, value in DEPENDENCIES.items():
ret[key] = True
try:
importlib.import_module(value)
except ImportError: # pragma: no cover
ret[key] = False # pragma: no cover
for k, v in CMD_DEPENDENCIES.items():
ret[k] = True
try:
v()
except RuntimeError: # pragma: no cover
ret[k] = False
return ret
@enum.unique
class UnknownMemberPolicy(enum.Enum):
ABORT = 'abort'
OMIT = 'omit'
KEEP = 'keep'
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