[CODE] add a batch file to regenerate the code file for UE4

Author: Alex Chi

README.md

@@ -0,0 +1,9 @@
+libprotobuf for [UE4][]
+=====
+
+Use the google's protobuf library as the third party in [Unreal Engine 4][].
+
+
+
+[UE4]: https://www.unrealengine.com/
+[Unreal Engine 4]: https://www.unrealengine.com/

libprotobuf.Build.cs

@@ -1,4 +1,4 @@
-// Copyright 1998-2016 Epic Games, Inc. All Rights Reserved.
+// Copyright 2016 Code 4 Game. All Rights Reserved.
 
 using UnrealBuildTool;
 

regenerateforue4.py

@@ -0,0 +1,69 @@
+from datetime import *
+import os
+import sys
+
+comment = '// Added for UE4 in {0}(UTC)'.format(datetime.utcnow())
+include_allow_header = '#include "AllowWindowsPlatformTypes.h"'
+include_hide_header = '#include "HideWindowsPlatformTypes.h"'
+
+def Check(_CodeFile):
+    if (os.path.isfile(_CodeFile) is False):
+        print "Can't find the code file!!!"
+        return False
+
+    code_file = open(_CodeFile, 'r')
+    if (code_file is None):
+        print "Failed to read the code file!!!"
+        return False
+    code_lines = code_file.readlines()
+    code_file.close()
+
+    for line in code_lines[:10]:
+        if (line.find(include_allow_header) < 0 and line.find(include_hide_header) < 0):
+            continue
+        print "Already was regenerated?"
+        return False
+    return True
+
+def Generate(_CodeFile):
+    if (Check(_CodeFile) is False):
+        print "Failed to check the code file!!!"
+        return
+
+    if (os.path.isfile(_CodeFile) is False):
+        print "Can't find the code file!!!"
+        return
+
+    code_file = open(_CodeFile, 'r')
+    if (code_file is None):
+        print "Failed to read the code file!!!"
+        return
+    code_lines = code_file.readlines()
+    code_file.close()
+
+    code_file = open(_CodeFile, 'w')
+    if (code_file is None):
+        print "Failed to write the code file!!!"
+        return
+    meet_first_include = False
+    meet_last_include = False
+    for line in code_lines:
+        if (meet_first_include is False and line[0:10] == "#include \""):
+            code_file.write('\n{0} {1}\n\n'.format(include_allow_header, comment))
+            meet_first_include = True
+        code_file.write(line)
+        if (meet_last_include is False and line[:len(line) - 1] == "// @@protoc_insertion_point(includes)"):
+            code_file.write('\n{0} {1}\n\n'.format(include_hide_header, comment))
+            meet_last_include = True
+    code_file.close()
+    if (meet_first_include is False):
+        print "Can't add the allow header!!!"
+    if (meet_last_include is False):
+        print "Can't add the hide header!!!"
+    if (meet_first_include and meet_last_include):
+        print "Success to regenerate the code for UE4"
+
+if len(sys.argv) <= 1:
+    print "Usage: python regenerateforue4.py `code file`"
+else:
+    Generate(sys.argv[1])