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Code Issues Releases Wiki Activity

Optimize the filesystem scanning slightly

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Bradlee Speice 2013-01-10 10:17:34 -05:00
parent 944593be94
commit d4d3ad450a
1 changed files with 15 additions and 17 deletions
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32
archiver/archive.py
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@ -43,7 +43,7 @@ class Archive (models.Model):
"Scan the archive's root filesystem and add any new songs without adding metadata, delete songs that exist no more"
#This method is implemented since the other scan methods all need to use the same code
#DRY FTW
import re, os
import re, os, itertools
from django.core.exceptions import ObjectDoesNotExist
from Melodia.melodia_settings import SUPPORTED_AUDIO_EXTENSIONS
from Melodia.melodia_settings import HASH_FUNCTION as hash
@ -60,23 +60,21 @@ class Archive (models.Model):
#Add new songs
for dirname, dirnames, filenames in os.walk(self.root_folder):
#For each filename
for filename in filenames:
#If the filename is a supported audio extension
if re.match(regex, filename):
#Make sure that `filename` is in the database
try:
rel_url = os.path.join(dirname, filename)
full_url = os.path.abspath(rel_url)
self.songs.get(url = full_url)
#For each filename that is supported
for filename in itertools.ifilter(lambda filename: re.match(regex, filename), filenames):
#Make sure that `filename` is in the database
try:
rel_url = os.path.join(dirname, filename)
full_url = os.path.abspath(rel_url)
self.songs.get(url = full_url)
except ObjectDoesNotExist, e:
#Song needs to be added to database
rel_url = os.path.join(dirname, filename)
full_url = os.path.abspath(rel_url)
new_song = Song(url = full_url)
new_song.save()
self.songs.add(new_song)
except ObjectDoesNotExist, e:
#Song needs to be added to database
rel_url = os.path.join(dirname, filename)
full_url = os.path.abspath(rel_url)
new_song = Song(url = full_url)
new_song.save()
self.songs.add(new_song)
def _update_song_metadata(self, use_echonest = False, progress_callback = lambda x, y: None):
"""Scan every song in this archive (database only) and make sure all songs are correct