def delDir(self, filepath):
path = filepath.split("/", -1)
(prevDirectory, theDirectory) = self.findDirectory(filepath)
fileName = path[len(path) - 1]
delEntry = None
emptyString = " "
paddedEmptyString = self.padString(emptyString)
if (theDirectory == self):
for entry in self.rootDirectory:
if entry.filename == fileName and entry.type == "d:":
delEntry = entry
if delEntry.length > 0:
for subEntry in delEntry.directoryBlock.directory:
if subEntry.empty == False:
print(
"An entry in the specified directory is occupied"
)
return
self.rootDirectory.remove(delEntry)
self.rootDirectory.append(
directory_entry.directory_entry(self.bitmap))
break
else:
for entry in theDirectory.directoryBlock.directory:
if entry.filename == fileName and entry.type == "d:":
delEntry = entry
if delEntry.length > 0:
for subEntry in delEntry.directoryBlock.directory:
if subEntry.empty == False:
print(
"An entry in the specified directory is occupied"
)
return
theDirectory.directoryBlock.directory.remove(delEntry)
theDirectory.directoryBlock.directory.append(
directory_entry.directory_entry(self.bitmap))
break
for block in delEntry.blocks:
if int(block) != 0:
self.drive.write_block(int(block), paddedEmptyString)
self.bitmap.freeBlock(int(block))
#Write the adjusted directories to the drive
if theDirectory != self:
self.printDirectory(theDirectory)
# Always write volume information
self.drive.write_block(0, self.toString())
def format(self):
self.drive = drive.Drive(self.name)
self.drive.format()
for i in range(6):
self.rootDirectory.append(
directory_entry.directory_entry(self.bitmap))
self.bitmap.retrieveAvailableBlock()
self.drive.write_block(0, self.toString())
def delFile(self, filepath):
path = filepath.split("/", -1)
(prevDirectory, theDirectory) = self.findDirectory(filepath)
fileName = path[-1]
delEntry = None
if (theDirectory == self):
for index in range(len(self.rootDirectory)):
entry = self.rootDirectory[index]
if entry.filename == fileName and entry.type == "f:":
self.rootDirectory.remove(entry)
self.rootDirectory.append(
directory_entry.directory_entry(self.bitmap))
delEntry = entry
break
else:
for index in range(len(theDirectory.directoryBlock.directory)):
entry = theDirectory.directoryBlock.directory[index]
if entry.filename == fileName and entry.type == "f:":
theDirectory.directoryBlock.directory.remove(entry)
theDirectory.directoryBlock.directory.append(
directory_entry.directory_entry(self.bitmap))
delEntry = entry
break
emptyString = " "
paddedEmptyString = self.padString(emptyString)
if (delEntry == None):
print("File not found in specified directory")
return
for block in delEntry.blocks:
if int(block) != 0:
self.drive.write_block(int(block), paddedEmptyString)
self.bitmap.freeBlock(int(block))
# Write the adjusted directories to the drive
if theDirectory != self:
self.printDirectory(theDirectory)
# Always write volume information
self.drive.write_block(0, self.toString())
def loadDirectory(self, directory):
if directory.isLoaded: return
#If no blocks held, ignored
for block in directory.blocks:
if int(block) != 0:
theEntries = self.drive.read_block(int(block))
#Retrieve the 8 entries in each block held by the directory
for i in range(8):
entry = theEntries[:64]
theEntries = theEntries[64:]
directoryEntry = directory_entry.directory_entry(
self.bitmap)
directoryEntry.fromString(entry)
directory.directoryBlock.directory.append(directoryEntry)
elif int(block) == 0:
break
directory.isLoaded = True
def reconnect(self):
self.drive = drive.Drive(self.name)
self.drive.reconnect()
volumedata = self.drive.read_block(0)
bitmapString = volumedata[:128]
entryString = volumedata[128:512]
for i in range(6):
entry = entryString[:64]
entryString = entryString[64:]
directoryEntry = directory_entry.directory_entry(self.bitmap)
directoryEntry.fromString(entry)
self.rootDirectory.append(directoryEntry)
self.bitmap = bitmap()
self.bitmap.fromString(bitmapString)
#!/Library/Frameworks/Python.framework/Versions/2.7/bin/python from directory_entry import directory_entry x = directory_entry(pathname="/Users/erik/videoportrait") x.find_children() x.print_children(filetype='python')
from directory_entry import directory_entry x = directory_entry(pathname="/usr/local") x.find_children() x.print_children()
