def sanitize(self, filename=None):
"""Fill in metadata defaults. Find ~mountpoint, ~#mtime,
and ~#added."""
if filename: self["~filename"] = filename
elif "~filename" not in self: raise ValueError("Unknown filename!")
if self.is_file:
self["~filename"] = os.path.realpath(self["~filename"])
# Find mount point (terminating at "/" if necessary)
head = self["~filename"]
while "~mountpoint" not in self:
head, tail = os.path.split(head)
# Prevent infinite loop without a fully-qualified filename
# (the unit tests use these).
head = head or "/"
if os.path.ismount(head): self["~mountpoint"] = head
else: self["~mountpoint"] = "/"
# Fill in necessary values.
self.setdefault("~#lastplayed", 0)
self.setdefault("~#laststarted", 0)
self.setdefault("~#playcount", 0)
self.setdefault("~#skipcount", 0)
self.setdefault("~#length", 0)
self.setdefault("~#bitrate", 0)
self.setdefault("~#rating", 0.5)
self.setdefault("~#added", int(time.time()))
self["~#mtime"] = util.mtime(self['~filename'])
def run(self):
if self.progress: self.bar.start()
mount_errors = set()
for i, doc in enumerate(row.value for row in self.view):
if "mountpoint" in doc:
mountpoint = util.qencode(doc["mountpoint"])
if not os.path.ismount(mountpoint):
if not mountpoint in mount_errors:
sys.stderr.write("Error: %s isn't mounted\n" % mountpoint)
if self.progress: sys.stderr.write("\n\n")
mount_errors.add(mountpoint)
continue
filename = util.qencode(doc["filename"])
try:
if not os.path.isfile(filename):
self.db.remove(filename)
elif util.mtime(filename) > doc["mtime"]:
self.db.update(doc, filename)
except Exception:
print "Error when updating %s:" % filename
traceback.print_exc()
if self.progress: sys.stderr.write("\n\n")
if self.progress: self.bar.update(i)
if self.progress: self.bar.finish()
def updated_file(path):
doc = self._doc_for(path)
if not doc: return True
return util.mtime(path) > doc.value["mtime"]
def valid(self):
"""Return true if the file cache is up-to-date (checked via
mtime), or we can't tell."""
return (self.get("~#mtime", 0) and
self["~#mtime"] == util.mtime(self["~filename"]))