# HG changeset patch
# User terom
# Date 1194550863 0
# Node ID 235ae238f69413d5e393301e522d842142e0eef6
# Parent  d9d1f8e5f384d1baa17b13d4a3dc6da7c327ecea
add missing utils.py

diff -r d9d1f8e5f384 -r 235ae238f694 degal.py
--- a/degal.py	Thu Nov 08 19:26:00 2007 +0000
+++ b/degal.py	Thu Nov 08 19:41:03 2007 +0000
@@ -528,7 +528,7 @@
         """
 
         prepare.info("Preparing image %s", self.path)
-
+        
         # stat the image file to get the filesize and mtime
         st = os.stat(self.path)
 
diff -r d9d1f8e5f384 -r 235ae238f694 utils.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/utils.py	Thu Nov 08 19:41:03 2007 +0000
@@ -0,0 +1,116 @@
+###############################################################
+# Functions taken from pathutils.py Version 0.2.5 (2005/12/06), http://www.voidspace.org.uk/python/recipebook.shtml#utils
+# Copyright Michael Foord 2004
+# Released subject to the BSD License
+# Please see http://www.voidspace.org.uk/python/license.shtml
+
+###############################################################
+# formatbytes takes a filesize (as returned by os.getsize() )
+# and formats it for display in one of two ways !!
+
+# For information about bugfixes, updates and support, please join the Pythonutils mailing list.
+# http://groups.google.com/group/pythonutils/
+# Comments, suggestions and bug reports welcome.
+# Scripts maintained at http://www.voidspace.org.uk/python/index.shtml
+# E-mail fuzzyman@voidspace.org.uk
+
+def formatbytes(sizeint, configdict=None, **configs):
+    """
+    Given a file size as an integer, return a nicely formatted string that
+    represents the size. Has various options to control it's output.
+    
+    You can pass in a dictionary of arguments or keyword arguments. Keyword
+    arguments override the dictionary and there are sensible defaults for options
+    you don't set.
+    
+    Options and defaults are as follows :
+    
+    *    ``forcekb = False`` -         If set this forces the output to be in terms
+    of kilobytes and bytes only.
+    
+    *    ``largestonly = True`` -    If set, instead of outputting 
+        ``1 Mbytes, 307 Kbytes, 478 bytes`` it outputs using only the largest 
+        denominator - e.g. ``1.3 Mbytes`` or ``17.2 Kbytes``
+    
+    *    ``kiloname = 'Kbytes'`` -    The string to use for kilobytes
+    
+    *    ``meganame = 'Mbytes'`` - The string to use for Megabytes
+    
+    *    ``bytename = 'bytes'`` -     The string to use for bytes
+    
+    *    ``nospace = True`` -        If set it outputs ``1Mbytes, 307Kbytes``, 
+        notice there is no space.
+    
+    Example outputs : ::
+    
+        19Mbytes, 75Kbytes, 255bytes
+        2Kbytes, 0bytes
+        23.8Mbytes
+    
+    .. note::
+    
+        It currently uses the plural form even for singular.
+    """
+    defaultconfigs = {  'forcekb' : False,
+                        'largestonly' : True,
+                        'kiloname' : 'Kbytes',
+                        'meganame' : 'Mbytes',
+                        'bytename' : 'bytes',
+                        'nospace' : True}
+    if configdict is None:
+        configdict = {}
+    for entry in configs:
+        # keyword parameters override the dictionary passed in
+        configdict[entry] = configs[entry]
+    #
+    for keyword in defaultconfigs:
+        if not configdict.has_key(keyword):
+            configdict[keyword] = defaultconfigs[keyword]
+    #
+    if configdict['nospace']:
+        space = ''
+    else:
+        space = ' '
+    #
+    mb, kb, rb = bytedivider(sizeint)
+    if configdict['largestonly']:
+        if mb and not configdict['forcekb']:
+            return stringround(mb, kb)+ space + configdict['meganame']
+        elif kb or configdict['forcekb']:
+            if mb and configdict['forcekb']:
+                kb += 1024*mb
+            return stringround(kb, rb) + space+ configdict['kiloname']
+        else:
+            return str(rb) + space + configdict['bytename']
+    else:
+        outstr = ''
+        if mb and not configdict['forcekb']:
+            outstr = str(mb) + space + configdict['meganame'] +', '
+        if kb or configdict['forcekb'] or mb:
+            if configdict['forcekb']:
+                kb += 1024*mb 
+            outstr += str(kb) + space + configdict['kiloname'] +', '
+        return outstr + str(rb) + space + configdict['bytename']
+
+def stringround(main, rest):
+    """
+    Given a file size in either (mb, kb) or (kb, bytes) - round it
+    appropriately.
+    """
+    # divide an int by a float... get a float
+    value = main + rest/1024.0
+    return str(round(value, 1))
+
+def bytedivider(nbytes):
+    """
+    Given an integer (probably a long integer returned by os.getsize() )
+    it returns a tuple of (megabytes, kilobytes, bytes).
+    
+    This can be more easily converted into a formatted string to display the
+    size of the file.
+    """ 
+    mb, remainder = divmod(nbytes, 1048576)
+    kb, rb = divmod(remainder, 1024)
+    return (mb, kb, rb)
+
+