def write( self, channels):
"""
Creates a XML document containing metadata for each
channel object in the "channels" parameter, which
should be a list of channel objects.
OPML 2.0 specification: http://www.opml.org/spec2
Returns True on success or False when there was an
error writing the file.
"""
if self.filename is None:
return False
doc = xml.dom.minidom.Document()
opml = doc.createElement('opml')
opml.setAttribute('version', '2.0')
doc.appendChild(opml)
head = doc.createElement( 'head')
head.appendChild( self.create_node( doc, 'title', 'gPodder subscriptions'))
head.appendChild( self.create_node( doc, 'dateCreated', formatdate(localtime=True)))
opml.appendChild( head)
body = doc.createElement( 'body')
for channel in channels:
body.appendChild( self.create_outline( doc, channel))
opml.appendChild( body)
try:
data = doc.toprettyxml(encoding='utf-8', indent=' ', newl=os.linesep)
# We want to have at least 512 KiB free disk space after
# saving the opml data, if this is not possible, don't
# try to save the new file, but keep the old one so we
# don't end up with a clobbed, empty opml file.
FREE_DISK_SPACE_AFTER = 1024*512
path = os.path.dirname(self.filename) or os.path.curdir
available = util.get_free_disk_space(path)
if available < 2*len(data)+FREE_DISK_SPACE_AFTER:
# On Windows, if we have zero bytes available, assume that we have
# not had the win32file module available + assume enough free space
if not gpodder.ui.win32 or available > 0:
logger.error('Not enough free disk space to save channel list to %s', self.filename)
return False
fp = open(self.filename+'.tmp', 'w')
fp.write(data)
fp.close()
util.atomic_rename(self.filename+'.tmp', self.filename)
except:
logger.error('Could not open file for writing: %s', self.filename,
exc_info=True)
return False
return True
def save(self, filename=None):
if filename is None:
filename = self.__filename
logger.info('Flushing settings to disk')
try:
fp = open(filename+'.tmp', 'wt')
fp.write(repr(self.__json_config))
fp.close()
util.atomic_rename(filename+'.tmp', filename)
except:
logger.error('Cannot write settings to %s', filename)
util.delete_file(filename+'.tmp')
raise
self.__save_thread = None
def save(self, filename=None):
if filename is None:
filename = self.__filename
logger.info("Flushing settings to disk")
try:
fp = open(filename + ".tmp", "wt")
fp.write(repr(self.__json_config))
fp.close()
util.atomic_rename(filename + ".tmp", filename)
except:
logger.error("Cannot write settings to %s", filename)
util.delete_file(filename + ".tmp")
raise
self.__save_thread = None
def save(self, filename=None):
if filename is None:
filename = self.__filename
logger.info('Flushing settings to disk')
try:
# revoke unix group/world permissions (this has no effect under windows)
umask = os.umask(0o077)
with open(filename + '.tmp', 'wt') as fp:
fp.write(repr(self.__json_config))
util.atomic_rename(filename + '.tmp', filename)
except:
logger.error('Cannot write settings to %s', filename)
util.delete_file(filename + '.tmp')
raise
finally:
os.umask(umask)
self.__save_thread = None
