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mirror of https://github.com/bspeice/Melodia synced 2024-12-25 08:08:13 -05:00

Add backup code

This commit is contained in:
Bradlee Speice 2012-12-18 19:58:50 -05:00
parent d057b2f455
commit 78df76cd59
2 changed files with 23 additions and 1 deletions

View File

@ -41,6 +41,11 @@ class Archive (models.Model):
#And a reference to the songs in this archive #And a reference to the songs in this archive
songs = models.ManyToManyField(Song) songs = models.ManyToManyField(Song)
#Backup settings
backup_location = models.CharField(max_length = 255)
backup_frequency = models.IntegerField()
last_backup = models.DateTimeField()
def _scan_filesystem(self, progress_callback = lambda x: None): def _scan_filesystem(self, progress_callback = lambda x: None):
"Scan the archive's root filesystem and add any new songs" "Scan the archive's root filesystem and add any new songs"
#This method is implemented since the other scan methods all need to use the same code #This method is implemented since the other scan methods all need to use the same code
@ -136,3 +141,21 @@ class Archive (models.Model):
#Make sure to add any new songs as well #Make sure to add any new songs as well
self._scan_filesystem() self._scan_filesystem()
def _needs_backup(self):
"Check if the current archive is due for a backup"
import datetime
prev_backup_time = self.last_backup
current_time = datetime.datetime.now()
delta = current_time - prev_backup_time
if delta > datetime.timedelta(seconds = self.backup_frequency):
return True
else:
return False
def run_backup(self, force_backup = False):
"Backup the current archive"
if force_backup or self._needs_backup():
import subprocess
subprocess.call(['rsync', '-av', self.root_folder, self.backup_location])

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@ -78,4 +78,3 @@ class Song (models.Model):
from Melodia.melodia_settings import HASH_FUNCTION as hash from Melodia.melodia_settings import HASH_FUNCTION as hash
f = open(self.url, 'rb') f = open(self.url, 'rb')
self.file_hash = hash(f.read()) self.file_hash = hash(f.read())