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mat2/libmat2/__init__.py

73 lines
1.6 KiB
Python

#!/usr/bin/env python3
import os
import collections
import enum
import importlib
from typing import Dict, Optional
# 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',
'gi': 'PyGobject',
'gi.repository.GdkPixbuf': 'GdkPixbuf from PyGobject',
'gi.repository.Poppler': 'Poppler from PyGobject',
'gi.repository.GLib': 'GLib from PyGobject',
'mutagen': 'Mutagen',
}
def _get_exiftool_path() -> str: # pragma: no cover
exiftool_path = '/usr/bin/exiftool'
if os.path.isfile(exiftool_path):
if os.access(exiftool_path, os.X_OK):
return exiftool_path
# ArchLinux
exiftool_path = '/usr/bin/vendor_perl/exiftool'
if os.path.isfile(exiftool_path):
if os.access(exiftool_path, os.X_OK):
return exiftool_path
raise ValueError
def check_dependencies() -> dict:
ret = collections.defaultdict(bool) # type: Dict[str, bool]
ret['Exiftool'] = True if _get_exiftool_path() else False
for key, value in DEPENDENCIES.items():
ret[value] = True
try:
importlib.import_module(key)
except ImportError: # pragma: no cover
ret[value] = False # pragma: no cover
return ret
@enum.unique
class UnknownMemberPolicy(enum.Enum):
ABORT = 'abort'
OMIT = 'omit'
KEEP = 'keep'