- def progress_generator(label, n):
- position = 0
- for i in uiprogress.bar(range(n), label.ljust(MESSAGE_LENGTH), \
- PROGRESS_LENGTH, silent):
- if i < position:
- continue
- position = yield
- yield # suppress the StopIteration exception
- return progress_generator(label, n)
+ suffix = {
+ 'default': '%(index)d/%(max)d',
+ 'percent': '%(percent)d%%',
+ 'b': '%(index)d/%(max)d B',
+ 'kb': '%(index)d/%(max)d KB',
+ 'mb': '%(index)d/%(max)d MB'
+ }
+
+ bar = Bar()
+ bar.message = message.ljust(MESSAGE_LENGTH)
+ bar.fill = '#'
+ bar.suffix = suffix[bar_type]
+ bar.bar_prefix = ' ['
+ bar.bar_suffix = '] '
+
+ return bar
+
+
+def md5(filename, size):
+
+ BLOCKSIZE = 2 ** 22 # 4MB
+
+ progressbar = progress("Calculating md5sum:", 'mb')
+ progressbar.max = ((size + 2 ** 20 - 1) // (2 ** 20))
+ md5 = hashlib.md5()
+ with open(filename, "r") as src:
+ left = size
+ while left > 0:
+ length = min(left, BLOCKSIZE)
+ data = src.read(length)
+ md5.update(data)
+ left -= length
+ progressbar.goto((size - left) // (2 ** 20))
+
+ checksum = md5.hexdigest()
+ output("\rCalculating md5sum...\033[K", False)
+ success(checksum)
+
+ return checksum