dedupfs added

dedupfs/my_formats.py

@@ -0,0 +1,38 @@
+from math import floor
+
+def format_timespan(seconds): # {{{1
+  """
+  Format a timespan in seconds as a human-readable string.
+  """
+  result = []
+  units = [('day', 60 * 60 * 24), ('hour', 60 * 60), ('minute', 60), ('second', 1)]
+  for name, size in units:
+    if seconds >= size:
+      count = seconds / size
+      seconds %= size
+      result.append('%i %s%s' % (count, name, floor(count) != 1 and 's' or ''))
+  if result == []:
+    return 'less than a second'
+  if len(result) == 1:
+    return result[0]
+  else:
+    return ', '.join(result[:-1]) + ' and ' + result[-1]
+
+def format_size(nbytes):
+  """
+  Format a byte count as a human-readable file size.
+  """
+  return nbytes < 1024 and '%i bytes' % nbytes \
+      or nbytes < (1024 ** 2) and __round(nbytes, 1024, 'KB') \
+      or nbytes < (1024 ** 3) and __round(nbytes, 1024 ** 2, 'MB') \
+      or nbytes < (1024 ** 4) and __round(nbytes, 1024 ** 3, 'GB') \
+      or __round(nbytes, 1024 ** 4, 'TB')
+
+def __round(nbytes, divisor, suffix):
+  nbytes = float(nbytes) / divisor
+  if floor(nbytes) == nbytes:
+    return str(int(nbytes)) + ' ' + suffix
+  else:
+    return '%.2f %s' % (nbytes, suffix)
+
+# vim: sw=2 sw=2 et