[Bf-extensions-cvs] SVN commit: /data/svn/bf-extensions [1627] trunk/py/scripts/addons/modules/ extensions_framework/util.py: extensions_framework: make util. path_relative_to_export more robust on win32

[Doug Hammond]

Revision: 1627
          http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-extensions&revision=1627
Author:   dougal2
Date:     2011-02-21 01:11:35 +0000 (Mon, 21 Feb 2011)
Log Message:
-----------
extensions_framework: make util.path_relative_to_export more robust on win32

Modified Paths:
--------------
    trunk/py/scripts/addons/modules/extensions_framework/util.py

Modified: trunk/py/scripts/addons/modules/extensions_framework/util.py
===================================================================
--- trunk/py/scripts/addons/modules/extensions_framework/util.py	2011-02-21 00:11:50 UTC (rev 1626)
+++ trunk/py/scripts/addons/modules/extensions_framework/util.py	2011-02-21 01:11:35 UTC (rev 1627)
@@ -52,8 +52,15 @@
 	"""Return a path that is relative to the export path"""
 	global export_path
 	p = filesystem_path(p)
+	ep = os.path.dirname(export_path)
+	
+	if os.sys.platform == 'win32':
+		# Prevent an error whereby python thinks C: and c: are different drives
+		if p[1] == ':': p[0] = p[0].lower()
+		if ep[1] == ':': ep[0] = ep[0].lower()
+	
 	try:
-		relp = os.path.relpath(p, os.path.dirname(export_path))
+		relp = os.path.relpath(p, ep)
 	except ValueError: # path on different drive on windows
 		relp = p