Fixed ``--tag-svn-revision`` not working when run from a source

distribution.

--HG--
branch : setuptools
extra : convert_revision : svn%3A6015fed2-1504-0410-9fe1-9d1591cc4771/sandbox/trunk/setuptools%4041474

setuptools.txt

@@ -2010,6 +2010,9 @@ Release Notes/Change History
    automatically include any package data listed in revision control or
    ``MANIFEST.in``.
 
+ * Fixed ``--tag-svn-revision`` not working when run from a source
+   distribution.
+
 0.6a8
  * Fixed some problems building extensions when Pyrex was installed, especially
    with Python 2.4 and/or packages using SWIG.

setuptools/command/egg_info.py

@@ -133,11 +133,11 @@ class egg_info(Command):
         version = self.distribution.get_version()
         if self.tag_build:
             version+=self.tag_build
-        if self.tag_svn_revision and os.path.exists('.svn'):
-            version += '-r%s' % self.get_svn_revision()
+        if self.tag_svn_revision and (
+            os.path.exists('.svn') or os.path.exists('PKG-INFO')
+        ):  version += '-r%s' % self.get_svn_revision()
         if self.tag_date:
-            import time
-            version += time.strftime("-%Y%m%d")
+            import time; version += time.strftime("-%Y%m%d")
         return safe_version(version)
 
     def get_svn_revision(self):