# HG changeset patch
# User Siddharth Agarwal <sid0@fb.com>
# Date 1410909583 25200
# Node ID 3606aff13a2230ae8708dc314d76b38be6f3ac05
# Parent  df6cb54604eb1df3890562d3b3f90f3c7000bc16
stupid: in svnbackend, adapt for core Mercurial changes

There's no efficient way to capture this API change in compathacks.

diff --git a/hgsubversion/stupid.py b/hgsubversion/stupid.py
--- a/hgsubversion/stupid.py
+++ b/hgsubversion/stupid.py
@@ -207,7 +207,13 @@ def patchrepoold(ui, meta, parentctx, pa
 try:
     class svnbackend(patch.repobackend):
         def getfile(self, fname):
-            data, (islink, isexec) = super(svnbackend, self).getfile(fname)
+            # In Mercurial >= 3.2, if fname is missing, data will be None and we
+            # should return None, None in that case. Earlier versions will raise
+            # an IOError which we let propagate up the stack.
+            data, flags = super(svnbackend, self).getfile(fname)
+            if data is None:
+                return None, None
+            islink, isexec = flags
             if islink:
                 data = 'link ' + data
             return data, (islink, isexec)