From a829bbf60bb51a3d1a295257c149a52d007cd7d7 Mon Sep 17 00:00:00 2001
From: Guilhem Lavaux <guilhem.lavaux@laposte.net>
Date: Sat, 2 Mar 2013 16:44:27 -0500
Subject: [PATCH] Find python/shell/C++ code and add a license header (remove
 it beforehand if necessary)

---
 build_tools/gather_sources.py | 95 ++++++++++++++++++++++++++++++++---
 1 file changed, 89 insertions(+), 6 deletions(-)

diff --git a/build_tools/gather_sources.py b/build_tools/gather_sources.py
index b4fed6c..2b6ff2e 100644
--- a/build_tools/gather_sources.py
+++ b/build_tools/gather_sources.py
@@ -1,11 +1,94 @@
-from git import Repo
+import re
+from git import Repo,Tree,Blob
 
-repo = Repo(".")
+def apply_license(license, relimit, filename):
+  header = re.sub(r'@FILENAME@', filename, license)
 
-assert repo.bare == False
+  f = file(filename)
+  lines = f.read()
+  f.close()
 
-t = repo.tree()
+  lines = re.sub(relimit, '', lines)
+  lines = header + lines
+
+  with tempfile.NamedTemporaryFile(delete=False) as tmp_sources:
+    tmp_sources.write(lines)
+
+  shutil.move(tmp_sources.name, filename)
 
 
-for entry in t.travers():
-  print entry
+def apply_python_license(filename):
+  license="""
+#+
+#   VIDE -- Void IDEntification pipeline -- @FILENAME@
+#   Copyright (C) 2010-2013 Guilhem Lavaux
+#   Copyright (C) 2011-2013 Paul M. Sutter
+#
+#   This program is free software; you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation; either version 2 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License along
+#   with this program; if not, write to the Free Software Foundation, Inc.,
+#   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#+
+"""
+   
+  print("Shell/Python file: %s" % filename)
+  relimit = r'(?s)#\+.*#\+'
+  apply_license(license, relimit, filename)
+
+
+def apply_cpp_license(filename):
+  license="""
+/*+
+    VIDE -- Void IDEntification pipeline -- @FILENAME@
+    Copyright (C) 2010-2013 Guilhem Lavaux
+    Copyright (C) 2011-2013 Paul M. Sutter
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
++*/
+"""
+  relimit = r'(?s)/\*\+.*\+\*/'
+  print("C++ file: %s" % filename)
+  apply_license(license, relimit, filename)
+  
+
+def analyze_tree(prefix, t):
+  for ename,entry in t.items():
+    if ename == 'external' or ename == 'zobov':
+      continue
+    if type(entry) == Tree:
+      analyze_tree(prefix + "/" + ename, entry)
+    elif type(entry) == Blob:
+      if re.match(".*\.(sh|py|pyx)$",ename) != None:
+        fname=prefix+"/"+ename
+        apply_python_license(fname)
+      if re.match('.*\.(cpp|hpp|h)$', ename) != None:
+        fname=prefix+"/"+ename
+        apply_cpp_license(fname)
+
+
+if __name__=="__main__":
+  repo = Repo(".")
+  assert repo.bare == False
+  t = repo.tree()
+  analyze_tree(".", t)