def write_tags(self):
"""
Writes tags to the file for this Track.
Returns False if unsuccessful, and a Format object from
`xl.metadata` otherwise.
"""
try:
f = metadata.get_format(self.get_loc_for_io())
if f is None:
return False # not a supported type
f.write_tags(self.__tags)
# now that we've written the tags to disk, remove any tags that the
# user asked to be deleted
to_remove = [k for k, v in self.__tags.iteritems() if v is None]
for rm in to_remove:
self.__tags.pop(rm)
return f
except IOError:
# error writing to the file, probably
logger.warning("Could not write tags to file", exc_info=True)
return False
except Exception:
logger.exception("Unknown exception: Could not write tags to file")
return False
def write_tags(self):
"""
Writes tags to the file for this Track.
Returns False if unsuccessful, and a Format object from
`xl.metadata` otherwise.
"""
try:
f = metadata.get_format(self.get_loc_for_io())
if f is None:
return False # not a supported type
f.write_tags(self.__tags)
# now that we've written the tags to disk, remove any tags that the
# user asked to be deleted
to_remove = [k for k, v in self.__tags.iteritems() if v is None]
for rm in to_remove:
self.__tags.pop(rm)
return f
except IOError:
# error writing to the file, probably
logger.warning("Could not write tags to file", exc_info=True)
return False
except Exception:
logger.exception("Unknown exception: Could not write tags to file")
return False
def read_tags(self, force=True, notify_changed=True):
"""
Reads tags from the file for this Track.
:param force: If not True, then only read the tags if the file has
be modified.
Returns False if unsuccessful, and a Format object from
`xl.metadata` otherwise.
"""
loc = self.get_loc_for_io()
try:
f = metadata.get_format(loc)
if f is None:
self._scan_valid = False
return False # not a supported type
# Retrieve file specific metadata
gloc = Gio.File.new_for_uri(loc)
mtime = gloc.query_info(
"time::modified", Gio.FileQueryInfoFlags.NONE, None
).get_modification_time()
mtime = mtime.tv_sec + (mtime.tv_usec / 100000.0)
if not force and self.__tags.get('__modified', 0) >= mtime:
return f
# Read the tags
ntags = f.read_all()
ntags['__modified'] = mtime
# TODO: this probably breaks on non-local files
ntags['__basedir'] = gloc.get_parent().get_path()
# remove tags that could be in the file, but are in fact not
# in the file. Retain tags in the DB that aren't supported by
# the file format.
nkeys = set(ntags.keys())
ekeys = {k for k in self.__tags.keys() if not k.startswith('__')}
# delete anything that wasn't in the new tags
to_del = ekeys - nkeys
# but if not others set, only delete supported tags
if not f.others:
to_del &= set(f.tag_mapping.keys())
for tag in to_del:
ntags[tag] = None
self.set_tags(notify_changed=notify_changed, **ntags)
self._scan_valid = True
return f
except Exception:
self._scan_valid = False
logger.exception("Error reading tags for %s", loc)
return False
def read_tags(self, force=True, notify_changed=True):
"""
Reads tags from the file for this Track.
:param force: If not True, then only read the tags if the file has
be modified.
Returns False if unsuccessful, and a Format object from
`xl.metadata` otherwise.
"""
loc = self.get_loc_for_io()
try:
f = metadata.get_format(loc)
if f is None:
self._scan_valid = False
return False # not a supported type
# Retrieve file specific metadata
gloc = Gio.File.new_for_uri(loc)
mtime = gloc.query_info(
"time::modified", Gio.FileQueryInfoFlags.NONE, None
).get_modification_time()
mtime = mtime.tv_sec + (mtime.tv_usec / 100000.0)
if not force and self.__tags.get('__modified', 0) >= mtime:
return f
# Read the tags
ntags = f.read_all()
ntags['__modified'] = mtime
# TODO: this probably breaks on non-local files
ntags['__basedir'] = gloc.get_parent().get_path()
# remove tags that could be in the file, but are in fact not
# in the file. Retain tags in the DB that aren't supported by
# the file format.
nkeys = set(ntags.keys())
ekeys = {k for k in self.__tags.keys() if not k.startswith('__')}
# delete anything that wasn't in the new tags
to_del = ekeys - nkeys
# but if not others set, only delete supported tags
if not f.others:
to_del &= set(f.tag_mapping.keys())
for tag in to_del:
ntags[tag] = None
self.set_tags(notify_changed=notify_changed, **ntags)
self._scan_valid = True
return f
except Exception:
self._scan_valid = False
logger.exception("Error reading tags for %s", loc)
return False
def _get_format_obj(self):
f = _CACHER.get(self)
if not f:
try:
f = metadata.get_format(self.get_loc_for_io())
except Exception: # TODO: What exception?
return None
if not f:
return None
_CACHER.add(self, f)
return f
def _get_format_obj(self):
f = _CACHER.get(self)
if not f:
try:
f = metadata.get_format(self.get_loc_for_io())
except Exception: # TODO: What exception?
return None
if not f:
return None
_CACHER.add(self, f)
return f
def read_tags(self):
"""
Reads tags from the file for this Track.
Returns False if unsuccessful, and a Format object from
`xl.metadata` otherwise.
"""
loc = self.get_loc_for_io()
try:
f = metadata.get_format(loc)
if f is None:
self._scan_valid = False
return False # not a supported type
ntags = f.read_all()
for k, v in ntags.iteritems():
self.set_tag_raw(k, v)
# remove tags that could be in the file, but are in fact not
# in the file. Retain tags in the DB that aren't supported by
# the file format.
nkeys = set(ntags.keys())
ekeys = {k for k in self.__tags.keys() if not k.startswith('__')}
# delete anything that wasn't in the new tags
to_del = ekeys - nkeys
# but if not others set, only delete supported tags
if not f.others:
to_del &= set(f.tag_mapping.keys())
for tag in to_del:
self.set_tag_raw(tag, None)
# fill out file specific items
gloc = Gio.File.new_for_uri(loc)
mtime = gloc.query_info("time::modified",
Gio.FileQueryInfoFlags.NONE,
None).get_modification_time()
mtime = mtime.tv_sec + (mtime.tv_usec / 100000.0)
self.set_tag_raw('__modified', mtime)
# TODO: this probably breaks on non-local files
path = gloc.get_parent().get_path()
self.set_tag_raw('__basedir', path)
self._dirty = True
self._scan_valid = True
return f
except Exception:
self._scan_valid = False
logger.exception("Error reading tags for %s", loc)
return False
def list_tags_disk(self):
"""
List all the tags directly from file metadata. Can be slow,
use with caution.
"""
f = _CACHER.get(self)
if not f:
try:
f = metadata.get_format(self.get_loc_for_io())
except Exception: # TODO: What exception?
return None
if not f:
return None
_CACHER.add(self, f)
return f._get_raw().keys()
def list_tags_disk(self):
"""
List all the tags directly from file metadata. Can be slow,
use with caution.
"""
f = _CACHER.get(self)
if not f:
try:
f = metadata.get_format(self.get_loc_for_io())
except Exception: # TODO: What exception?
return None
if not f:
return None
_CACHER.add(self, f)
return f._get_raw().keys()
def write_tags(self):
"""
Writes tags to the file for this Track.
Returns False if unsuccessful, and a Format object from
`xl.metadata` otherwise.
"""
try:
f = metadata.get_format(self.get_loc_for_io())
if f is None:
return False # not a supported type
f.write_tags(self.__tags)
return f
except:
common.log_exception()
return False
def write_tags(self):
"""
Writes tags to the file for this Track.
Returns False if unsuccessful, and a Format object from
`xl.metadata` otherwise.
"""
try:
f = metadata.get_format(self.get_loc_for_io())
if f is None:
return False # not a supported type
f.write_tags(self.__tags)
return f
except:
common.log_exception()
return False
def read_tags(self):
"""
Reads tags from the file for this Track.
Returns False if unsuccessful, and a Format object from
`xl.metadata` otherwise.
"""
loc = self.get_loc_for_io()
try:
f = metadata.get_format(loc)
if f is None:
self._scan_valid = False
return False # not a supported type
ntags = f.read_all()
for k, v in ntags.iteritems():
self.set_tag_raw(k, v)
# remove tags that have been deleted in the file, while
# taking into account that the db may have tags not
# supported by the file's tag format.
if f.others:
supported_tags = [ t for t in self.list_tags() \
if not t.startswith("__") ]
else:
supported_tags = f.tag_mapping.keys()
for tag in supported_tags:
if tag not in ntags.keys():
self.set_tag_raw(tag, None)
# fill out file specific items
gloc = Gio.File.new_for_uri(loc)
mtime = gloc.query_info("time::modified",
Gio.FileQueryInfoFlags.NONE,
None).get_modification_time()
mtime = mtime.tv_sec + (mtime.tv_usec / 100000.0)
self.set_tag_raw('__modified', mtime)
# TODO: this probably breaks on non-local files
path = gloc.get_parent().get_path()
self.set_tag_raw('__basedir', path)
self._dirty = True
self._scan_valid = True
return f
except Exception:
self._scan_valid = False
logger.exception("Error reading tags for %s", loc)
return False
def write_tags(self):
"""
Writes tags to the file for this Track.
Returns False if unsuccessful, and a Format object from
`xl.metadata` otherwise.
"""
try:
f = metadata.get_format(self.get_loc_for_io())
if f is None:
return False # not a supported type
f.write_tags(self.__tags)
return f
except IOError, e:
# error writing to the file, probably
logger.warning( "Could not write tags to file: %s" % e )
return False
def write_tags(self):
"""
Writes tags to the file for this Track.
Returns False if unsuccessful, and a Format object from
`xl.metadata` otherwise.
"""
try:
f = metadata.get_format(self.get_loc_for_io())
if f is None:
return False # not a supported type
f.write_tags(self.__tags)
return f
except IOError, e:
# error writing to the file, probably
logger.warning("Could not write tags to file: %s" % e)
return False
def read_tags(self):
"""
Reads tags from the file for this Track.
Returns False if unsuccessful, and a Format object from
`xl.metadata` otherwise.
"""
loc = self.get_loc_for_io()
try:
f = metadata.get_format(loc)
if f is None:
self._scan_valid = False
return False # not a supported type
ntags = f.read_all()
for k, v in ntags.iteritems():
self.set_tag_raw(k, v)
# remove tags that have been deleted in the file, while
# taking into account that the db may have tags not
# supported by the file's tag format.
if f.others:
supported_tags = [ t for t in self.list_tags() \
if not t.startswith("__") ]
else:
supported_tags = f.tag_mapping.keys()
for tag in supported_tags:
if tag not in ntags.keys():
self.set_tag_raw(tag, None)
# fill out file specific items
gloc = Gio.File.new_for_uri(loc)
mtime = gloc.query_info("time::modified", Gio.FileQueryInfoFlags.NONE, None).get_modification_time()
mtime = mtime.tv_sec + (mtime.tv_usec/100000.0)
self.set_tag_raw('__modified', mtime)
# TODO: this probably breaks on non-local files
path = gloc.get_parent().get_path()
self.set_tag_raw('__basedir', path)
self._dirty = True
self._scan_valid = True
return f
except Exception:
self._scan_valid = False
logger.exception("Error reading tags for %s", loc)
return False
def get_tag_disk(self, tag):
"""
Read a tag directly from disk. Can be slow, use with caution.
Intended for use with large fields like covers and
lyrics that shouldn't be loaded to the in-mem db.
"""
f = _CACHER.get(self)
if not f:
try:
f = metadata.get_format(self.get_loc_for_io())
except Exception: # TODO: What exception?
return None
if not f:
return None
_CACHER.add(self, f)
try:
return f.read_tags([tag])[tag]
except KeyError:
return None
def get_tag_disk(self, tag):
"""
Read a tag directly from disk. Can be slow, use with caution.
Intended for use with large fields like covers and
lyrics that shouldn't be loaded to the in-mem db.
"""
f = _CACHER.get(self)
if not f:
try:
f = metadata.get_format(self.get_loc_for_io())
except Exception: # TODO: What exception?
return None
if not f:
return None
_CACHER.add(self, f)
try:
return f.read_tags([tag])[tag]
except KeyError:
return None
