diff -r b0db8ec7ac78 -r ac67adabce13 hgkw/keyword.py
--- a/hgkw/keyword.py	Fri Dec 29 13:02:29 2006 +0100
+++ b/hgkw/keyword.py	Fri Dec 29 13:57:57 2006 +0100
@@ -15,9 +15,10 @@
 files (like LaTeX packages), that are mostly addressed to an audience
 not running a version control system.
 
-The extension consists actually in 2 parts:
+The extension, according to its hackish nature, is a hybrid and consists
+actually in 2 parts:
 
-    1. extension code (reposetup) that is triggered on checkout and
+    1. pure extension code (reposetup) that is triggered on checkout and
        logging of changes.
     2. a pretxncommit hook (hgrc (5)) that expands keywords immediately
        at commit time in the working directory.
@@ -82,7 +83,6 @@
         def read(self, node):
             data = super(kwfilelog, self).read(node)
             if not self._path.startswith('.hg') and not util.binary(data):
-
                 c = context.filectx(self._repo, self._path, fileid=node,
                                      filelog=self)
                 for pat, opt in self._repo.ui.configitems('keyword'):
@@ -140,27 +140,22 @@
     # validity checks should have been done already
     modified, added = repo.status(files=files, match=match)[:2]
     candidates = [f for f in modified + added if not f.startswith('.hg')]
-
     if not candidates:
         return False
 
     # only check files that are configured in keyword section
     files = []
-    # python2.4: files = set()
     for pat, opt in repo.ui.configitems('keyword'):
         if opt == 'expand':
             mf = util.matcher(repo.root, '', [pat], [], [])[1]
             for candidate in candidates:
                 if mf(candidate) and candidate not in files:
                     files.append(candidate)
-                # python2.4:
-                # if mf(candidate): files.add(candidate)
-
     if not files:
         return False
 
     user, date = repo.changelog.read(repo.changelog.tip())[1:3]
-    # expand both expanded and unexpanded keywords
+    # update both expanded and unexpanded keywords
     re_kw = re.compile(r'\$(%s)(: [^$]+? )?\$' % hgkeywords)
 
     for f in files:
@@ -174,5 +169,4 @@
             data, kwct = re_kw.subn(kwexpander, data)
             if kwct:
                 ui.note(_('expanding keywords in %s\n' % f))
-                # backup file?
                 repo.wfile(f, 'w').write(data)