def test(directory, logger):
if (os.path.exists(directory) and os.path.isdir(directory)):
index = utilities.loadIndex(directory)
objectFilePath = os.path.join(directory, 'objects')
everythingIsFine = True
counter = 0
erroneousPaths = []
try: #Easier to ask for forgiveness than permission (EAFP) Checks the files to be iterated over exist
for fileName in os.listdir(objectFilePath):
filePath = os.path.join(objectFilePath, fileName)
hash = utilities.createFileSignature(filePath)[2]
if hash != fileName:
logger.warn("This object's hash does not match its filename: " + str(hash)) #logs an unsuccessful run of test function
everythingIsFine = False
for filename, hash in index.items():
if not os.path.exists(os.path.join(objectFilePath, hash)):
erroneousPaths.append(filename)
logger.warn("This file could not be found in the objects directory: " + hash) #logs an unsuccessful run of test function
everythingIsFine = False
else:
counter += 1
except OSError: #throws an error if the files do not exist
print "Error: The file does not exist!"
if everythingIsFine and len(erroneousPaths) < 1: #Logs the successful running of test function
logger.info("All objects' hashes match their filename and all index entries exist as objects in the archive")
logger.info("The number of valid index entries is: " + str(counter))
else:
print "The backup archive has not been created! Use 'mybackup init' to initialise the directory before calling 'test'."
def backupFile (archiveDir, fileName, index, logger):
fileHash = utilities.createFileSignature(fileName)[2];
if (index.has_key(fileName)):
if (index[fileName] == fileHash):
logger.debug("Backup file '"+fileName+"' already exists and is up-to-date; skipping.");
return;
#Check whether the file is already in the index
#If so, remove the existing file
canRemove = True;
for key, value in index.items():
if (value == fileHash and key != fileName):
canRemove = False;#Another file exists with the same hash
if (canRemove and os.path.exists(index[fileName])):
os.remove(os.path.join(archiveDir, index[fileName]));
logger.info("Replacing backup file '"+fileName+"'");
logger.info("Adding new file '"+fileName+"' to backup.");
index[fileName] = fileHash;
shutil.copyfile(fileName, os.path.join(archiveDir, fileHash));