From 39ff091cddf8fd5e01047d80c7ed60c150537705 Mon Sep 17 00:00:00 2001
From: Thanos Doukoudakis <thanos.doukoudakis@isode.com>
Date: Fri, 11 May 2018 11:26:39 +0100
Subject: Make generated files handle Unicode characters

This patch handles a case where some of the files used to generate COPYING,
were containing unicode strings, which could lead to a failure when building
sid package. The code now will check the type of the string before writing to
the file, and if needed it will transform it to the appropriate format.

Test-Information:
Generated the sid package with package_all_platforms script with no problems.
Created a debian sid box and tested the installation of the generated
packages. Validated the output generated in Windows 10 and Ubuntu 16.04 builds
through the "About" dialog in Swift.

Change-Id: I05e518b758f316d9fbf23c1079be5a462e75106c

diff --git a/BuildTools/SCons/Tools/textfile.py b/BuildTools/SCons/Tools/textfile.py
index 89f8963..9b424f2 100644
--- a/BuildTools/SCons/Tools/textfile.py
+++ b/BuildTools/SCons/Tools/textfile.py
@@ -113,7 +113,11 @@ def _action(target, source, env):
     lsep = None
     for s in source:
         if lsep: fd.write(lsep)
-        fd.write(_do_subst(s, subs))
+        stringtowrite = _do_subst(s, subs)
+        if isinstance(stringtowrite, str):
+          fd.write(stringtowrite)
+        elif isinstance(stringtowrite, unicode):
+          fd.write(stringtowrite.encode('utf-8'))
         lsep = linesep
     fd.close()
 
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