bfa0308880
- output path no longer has fallbacks - refactor accuraterip cache - use requests to download accuraterip entries - add tests for accuraterip functionality - remove gobject support from accuraterip-checksum calculation - default track template now includes extension - begin to remove support for continuing rip - begin to use print instead of sys.stdout.write() throughout
57 lines
1.5 KiB
Python
57 lines
1.5 KiB
Python
from subprocess import Popen, PIPE
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import logging
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logger = logging.getLogger(__name__)
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ARB = 'accuraterip-checksum'
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FLAC = 'flac'
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def _execute(cmd, **redirects):
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logger.debug('executing %r', cmd)
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return Popen(cmd, **redirects)
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def accuraterip_checksum(f, track_number, total_tracks, wave=False, v2=False):
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v = '--accuraterip-v1'
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if v2:
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v = '--accuraterip-v2'
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track_number, total_tracks = str(track_number), str(total_tracks)
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if wave:
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cmd = [ARB, v, f, track_number, total_tracks]
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redirects = dict(stdout=PIPE, stderr=PIPE)
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else:
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flac = _execute([FLAC, '-cds', f], stdout=PIPE)
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cmd = [ARB, v, '/dev/stdin', track_number, total_tracks]
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redirects = dict(stdin=flac.stdout, stdout=PIPE, stderr=PIPE)
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arc = _execute(cmd, **redirects)
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if not wave:
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flac.stdout.close()
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out, err = arc.communicate()
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if not wave:
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flac.wait()
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if flac.returncode != 0:
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logger.warning(
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'ARC calculation failed: flac return code is non zero: %r' %
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flac.returncode
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)
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return None
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if arc.returncode != 0:
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logger.warning(
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'ARC calculation failed: arc return code is non zero: %r' %
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arc.returncode
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)
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return None
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try:
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checksum = int('0x%s' % out.strip(), base=16)
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logger.debug('returned %r', checksum)
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return checksum
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except ValueError:
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logger.warning('ARC output is not usable')
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return None
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