def __init__(self,
transcoder,
destpath,
playlists,
dryrun,
concurrency):
self.synchronizer = Synchronizer(transcoder)
self.synchronizer.set_target_dir(destpath)
[ self.synchronizer.add_playlist(p) for p in playlists ]
self.dryrun = dryrun
self.concurrency = concurrency
class SynchronizationCLIBackend:
def __init__(self,
transcoder,
destpath,
playlists,
dryrun,
concurrency):
self.synchronizer = Synchronizer(transcoder)
self.synchronizer.set_target_dir(destpath)
[ self.synchronizer.add_playlist(p) for p in playlists ]
self.dryrun = dryrun
self.concurrency = concurrency
def run(self):
"""Returns:
0 if all transcoding / synchronization operations completed.
2 if scanning experienced a problem.
4 if a transcoding / synchronization failure took place.
8 if a problem took place while writing playlists.
Or a combination of the above.
Raises Exception in an unexpected failure took place.
"""
exitval = 0
failures = self.synchronizer.scan()
if failures:
print >> sys.stderr, "Problems encountered during scanning:\n"
for s, t in failures:
print >> sys.stderr, \
"Could not scan: %r\nBecause: %r\n" % (s, t)
print >> sys.stderr
exitval += 2
if self.dryrun:
ops, errors = self.synchronizer.compute_synchronization()
for s, t in ops.items():
print "Source: %r\nTarget: %r\n" % (s, t)
for s, t in errors.items():
print "Not transferring: %r\nBecause: %r\n" % (s, t)
if errors:
exitval += 8
return exitval
sync_tasks = self.synchronizer.synchronize(concurrency=self.concurrency)
errors = None
for s, t in sync_tasks:
if isinstance(t, Exception):
print >> sys.stderr, \
"Not synced: %r\nBecause: %s\n" % (s, t)
errors = True
else:
print >> sys.stderr, \
"Synced: %r\nTarget: %r\n" % (s, t)
if errors:
exitval += 4
playlist_failures = self.synchronizer.synchronize_playlists()
if playlist_failures:
print >> sys.stderr, "Problems while writing playlists:\n"
for s, t in playlist_failures:
print >> sys.stderr, \
"Could not write: %r\nBecause: %r\n" % (s, t)
print >> sys.stderr
exitval += 8
return exitval
