From e277df58600a5ae81dfab144fc0ea0d8edb45c09 Mon Sep 17 00:00:00 2001
From: Franz Beaune <franz@appleseedhq.net>
Date: Sat, 10 Sep 2016 23:34:34 +0200
Subject: [PATCH] Add Python script to sort #include clauses in C++ files

---
 scripts/sortincludes.py | 96 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 96 insertions(+)
 create mode 100644 scripts/sortincludes.py

diff --git a/scripts/sortincludes.py b/scripts/sortincludes.py
new file mode 100644
index 0000000000..bb3a8aa8fa
--- /dev/null
+++ b/scripts/sortincludes.py
@@ -0,0 +1,96 @@
+#!/usr/bin/python
+
+#
+# This source file is part of appleseed.
+# Visit http://appleseedhq.net/ for additional information and resources.
+#
+# This software is released under the MIT license.
+#
+# Copyright (c) 2016 Francois Beaune, The appleseedhq Organization
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+
+import argparse
+import os
+import sys
+
+
+#--------------------------------------------------------------------------------------------------
+# Processing code.
+#--------------------------------------------------------------------------------------------------
+
+def process_file(filepath):
+    print("processing {0}...".format(filepath))
+
+    with open(filepath) as f:
+        lines = f.readlines()
+
+    section_begin = -1
+
+    for index in range(len(lines)):
+        line = lines[index]
+
+        if section_begin == -1 and line.startswith("#include"):
+            section_begin = index
+
+        if section_begin != -1 and line in ["\n", "\r\n"]:
+            if all(clause.startswith("#include") for clause in lines[section_begin:index]):
+                lines[section_begin:index] = sorted(lines[section_begin:index])
+            section_begin = -1
+
+    with open(filepath + ".processed", "wt") as f:
+        for line in lines:
+            f.write(line)
+
+    os.remove(filepath)
+    os.rename(filepath + ".processed", filepath)
+    
+def process_recursively():
+    for dirpath, dirnames, filenames in os.walk("."):
+        for filename in filenames:
+            ext = os.path.splitext(filename)[1]
+            if ext == ".h" or ext == ".cpp":
+                process_file(os.path.join(dirpath, filename))
+
+
+#--------------------------------------------------------------------------------------------------
+# Entry point.
+#--------------------------------------------------------------------------------------------------
+
+def main():
+    parser = argparse.ArgumentParser(description="sort #include clauses in c++ source code.")
+    parser.add_argument("-r", "--recursive", action='store_true', dest='recursive',
+                        help="process all files in the specified directory and all its subdirectories")
+    parser.add_argument("filepath", nargs="?", help="file to process")
+    args = parser.parse_args()
+
+    if args.filepath:
+        if args.recursive:
+            print("cannot simultaneously specify a file path and use the --recursive flag.")
+            sys.exit(1)
+        print(args.filepath)
+    else:
+        if not args.recursive:
+            print("either a file path or the --recursive flag must be specified.")
+            sys.exit(1)
+        process_recursively()
+
+if __name__ == '__main__':
+    main()