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Add some exception handling code for when the preferences backup file doesn't exist.

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This commit is contained in:
Charles Haley 2012-06-19 17:54:13 +02:00
parent 4205c7b8a1
commit 6fe358ed3e
1 changed files with 12 additions and 6 deletions
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18
src/calibre/library/restore.py
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@ -115,12 +115,18 @@ class Restore(Thread):
self.progress_callback('Starting restore preferences', 0) self.progress_callback('Starting restore preferences', 0)
dbpath = os.path.join(self.src_library_path, 'metadata_db_prefs.json') dbpath = os.path.join(self.src_library_path, 'metadata_db_prefs.json')
ndbpath = os.path.join(self.library_path, 'metadata_db_prefs.json') ndbpath = os.path.join(self.library_path, 'metadata_db_prefs.json')
shutil.copyfile(dbpath, ndbpath) if not os.path.exists(dbpath):
db = RestoreDatabase(self.library_path) self.progress_callback('Cannot restore preferences. Backup file not found.', 1)
db.prefs.read_serialized(self.library_path) return
db.commit() try:
db.conn.close() shutil.copyfile(dbpath, ndbpath)
self.progress_callback('Finished restore preferences', 1) db = RestoreDatabase(self.library_path)
db.prefs.read_serialized(self.library_path)
db.commit()
db.conn.close()
self.progress_callback('Finished restore preferences', 1)
except:
self.progress_callback('Restoring preferences failed', 1)
def scan_library(self): def scan_library(self):
for dirpath, dirnames, filenames in os.walk(self.src_library_path): for dirpath, dirnames, filenames in os.walk(self.src_library_path):