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logcmdutil: add a helpful assertion to catch mistyped templates early
authorAugie Fackler <augie@google.com>
Sun, 14 Oct 2018 04:37:25 -0400
changeset 40285 96164fb9b913
parent 40284 46b55f279571
child 40286 af52181f71ff
logcmdutil: add a helpful assertion to catch mistyped templates early This would have made a defect in test-notify.t much easier to figure out. Differential Revision: https://phab.mercurial-scm.org/D5097
mercurial/logcmdutil.py file | annotate | diff | comparison | revisions 
--- a/mercurial/logcmdutil.py	Sun Oct 14 05:28:01 2018 -0400
+++ b/mercurial/logcmdutil.py	Sun Oct 14 04:37:25 2018 -0400
@@ -460,6 +460,8 @@
                 self.footer = self.t.render(self._parts['footer'], props)
 
 def templatespec(tmpl, mapfile):
+    if pycompat.ispy3:
+        assert not isinstance(tmpl, str), 'tmpl must not be a str'
     if mapfile:
         return formatter.templatespec('changeset', tmpl, mapfile)
     else:
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