# HG changeset patch
# User Martin von Zweigbergk <martinvonz@google.com>
# Date 1553273107 25200
# Node ID d48a480af9ab256c8ae3360167d5e34d7885aea1
# Parent  2eafdca7ba4b74407f5d37cb1cd85adf3efc0164
compat: add support for new arg name in memfilectx.__init__

This makes us compatible with 550a172a603b (memctx: rename constructor
argument "copied" to "copysource" (API), 2019-03-19).

diff -r 2eafdca7ba4b -r d48a480af9ab hgext3rd/evolve/compat.py
--- a/hgext3rd/evolve/compat.py	Wed Mar 13 17:32:14 2019 +0530
+++ b/hgext3rd/evolve/compat.py	Fri Mar 22 09:45:07 2019 -0700
@@ -81,9 +81,14 @@
 def memfilectx(repo, ctx, fctx, flags, copied, path):
     # XXX Would it be better at the module level?
     varnames = context.memfilectx.__init__.__code__.co_varnames
-    ctxmandatory = varnames[2] == "changectx"
 
-    if ctxmandatory:
+    if "copysource" in varnames:
+        mctx = context.memfilectx(repo, ctx, fctx.path(), fctx.data(),
+                                  islink='l' in flags,
+                                  isexec='x' in flags,
+                                  copysource=copied.get(path))
+    # compat with hg <- 4.9
+    elif varnames[2] == "changectx":
         mctx = context.memfilectx(repo, ctx, fctx.path(), fctx.data(),
                                   islink='l' in flags,
                                   isexec='x' in flags,