hgweb: move getblock() closure out of compare()

(Please use 'hg diff -w' to get readable diff from this patch.)

mercurial/hgweb/webutil.py

@@ -591,10 +591,7 b' def _compline(tmpl, type, leftlineno, le'
         'rightline': rightline or '',
     })
 
-def compare(tmpl, context, leftlines, rightlines):
-    '''Generator function that provides side-by-side comparison data.'''
-
-    def getblock(opcodes):
+def _getcompblock(tmpl, leftlines, rightlines, opcodes):
         for type, llo, lhi, rlo, rhi in opcodes:
             len1 = lhi - llo
             len2 = rhi - rlo
@@ -623,13 +620,16 b' def compare(tmpl, context, leftlines, ri'
                                     rightlineno=i + 1,
                                     rightline=rightlines[i])
 
+def compare(tmpl, context, leftlines, rightlines):
+    '''Generator function that provides side-by-side comparison data.'''
     s = difflib.SequenceMatcher(None, leftlines, rightlines)
     if context < 0:
-        yield tmpl.generate('comparisonblock',
-                            {'lines': getblock(s.get_opcodes())})
+        l = _getcompblock(tmpl, leftlines, rightlines, s.get_opcodes())
+        yield tmpl.generate('comparisonblock', {'lines': l})
     else:
         for oc in s.get_grouped_opcodes(n=context):
-            yield tmpl.generate('comparisonblock', {'lines': getblock(oc)})
+            l = _getcompblock(tmpl, leftlines, rightlines, oc)
+            yield tmpl.generate('comparisonblock', {'lines': l})
 
 def diffstatgen(ctx, basectx):
     '''Generator function that provides the diffstat data.'''