# or implied, of GRNET S.A.
import sys
-import pbs
+import sh
import hashlib
-from colors import red, green, yellow
-from progress.bar import Bar
class FatalError(Exception):
pass
-silent = False
-
-
def get_command(command):
def find_sbin_command(command, exception):
search_paths = ['/usr/local/sbin', '/usr/sbin', '/sbin']
for fullpath in map(lambda x: "%s/%s" % (x, command), search_paths):
if os.path.exists(fullpath) and os.access(fullpath, os.X_OK):
- return pbs.Command(fullpath)
+ return sh.Command(fullpath)
raise exception
try:
- return pbs.__getattr__(command)
- except pbs.CommadNotFount as e:
+ return sh.__getattr__(command)
+ except sh.CommadNotFount as e:
return find_sbin_command(command, e)
-def error(msg, new_line=True):
- nl = "\n" if new_line else ''
- sys.stderr.write(red('Error: %s' % msg) + nl)
-
-
-def warn(msg, new_line=True):
- if not silent:
- nl = "\n" if new_line else ''
- sys.stderr.write(yellow("Warning: %s" % msg) + nl)
-
-
-def success(msg, new_line=True):
- if not silent:
- nl = "\n" if new_line else ''
- sys.stdout.write(green(msg) + nl)
- if not nl:
- sys.stdout.flush()
-
-
-def output(msg="", new_line=True):
- if not silent:
- nl = "\n" if new_line else ''
- sys.stdout.write(msg + nl)
- if not nl:
- sys.stdout.flush()
-
-
-def progress(message='', bar_type="default"):
-
- MESSAGE_LENGTH = 30
-
- 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
-
+class MD5:
+ def __init__(self, output):
+ self.out = output
-def md5(filename, size):
+ def compute(self, filename, size):
- BLOCKSIZE = 2 ** 22 # 4MB
+ MB = 2 ** 20
+ BLOCKSIZE = 4 * MB # 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))
+ prog_size = ((size + MB - 1) // MB) # in MB
+ progressbar = self.out.Progress(prog_size, "Calculating md5sum", 'mb')
+ 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) // MB)
- checksum = md5.hexdigest()
- output("\rCalculating md5sum...\033[K", False)
- success(checksum)
+ checksum = md5.hexdigest()
+ progressbar.success(checksum)
- return checksum
+ return checksum
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