changeset 13157:82f840109f76

record: teach parsepatch() about non-git style headers

These changes are not useful to record itself, since it is hard coded
to always generate git style diffs.  But it makes parsepatch() more
generally useful for parsing normal patch files.

--- a/hgext/record.py	Mon Dec 13 10:30:15 2010 -0500
+++ b/hgext/record.py	Wed Dec 08 22:14:18 2010 -0600
@@ -42,7 +42,7 @@
         line = lr.readline()
         if not line:
             break
-        if line.startswith('diff --git a/'):
+        if line.startswith('diff --git a/') or line.startswith('diff -r '):
             def notheader(line):
                 s = line.split(None, 1)
                 return not s or s[0] not in ('---', 'diff')
@@ -70,7 +70,8 @@
 
     XXX shoudn't we move this to mercurial/patch.py ?
     """
-    diff_re = re.compile('diff --git a/(.*) b/(.*)$')
+    diffgit_re = re.compile('diff --git a/(.*) b/(.*)$')
+    diff_re = re.compile('diff -r .* (.*)$')
     allhunks_re = re.compile('(?:index|new file|deleted file) ')
     pretty_re = re.compile('(?:new file|deleted file) ')
     special_re = re.compile('(?:index|new|deleted|copy|rename) ')
@@ -110,10 +111,14 @@
                 return True
 
     def files(self):
-        fromfile, tofile = self.diff_re.match(self.header[0]).groups()
-        if fromfile == tofile:
-            return [fromfile]
-        return [fromfile, tofile]
+        match = self.diffgit_re.match(self.header[0])
+        if match:
+            fromfile, tofile = match.groups()
+            if fromfile == tofile:
+                return [fromfile]
+            return [fromfile, tofile]
+        else:
+            return self.diff_re.match(self.header[0]).groups()
 
     def filename(self):
         return self.files()[-1]