1 files changed, 142 insertions, 0 deletions
diff --git a/tools/dev/check-license.py b/tools/dev/check-license.py
new file mode 100755
index 0000000..37041be
--- /dev/null
+++ b/tools/dev/check-license.py
@@ -0,0 +1,142 @@
+#!/usr/bin/env python
+#
+# check if a file has the proper license in it
+#
+# USAGE: check-license.py [-C] file1 file2 ... fileN
+#
+# A 'file' may in fact be a directory, in which case it is recursively
+# searched.
+#
+# If the license cannot be found, then the filename is printed to stdout.
+# Typical usage:
+#    $ check-license.py . > bad-files
+#
+# -C switch is used to change licenses.
+# Typical usage:
+#    $ check-license.py -C file1 file2 ... fileN
+#
+
+import sys, os, re
+
+# Note: Right now, OLD_LICENSE and NEW_LICENSE are the same, because
+# r878444 updated all the license blocks.  In the future, if we update
+# the license block again, change just NEW_LICENSE and use this script.
+
+OLD_LICENSE = '''\
+ \* ====================================================================
+ \*    Licensed to the Subversion Corporation \(SVN Corp\.\) under one
+ \*    or more contributor license agreements\.  See the NOTICE file
+ \*    distributed with this work for additional information
+ \*    regarding copyright ownership\.  The SVN Corp\. licenses this file
+ \*    to you under the Apache License, Version 2\.0 \(the
+ \*    "License"\); you may not use this file except in compliance
+ \*    with the License\.  You may obtain a copy of the License at
+ \*
+ \*      http://www\.apache\.org/licenses/LICENSE-2\.0
+ \*
+ \*    Unless required by applicable law or agreed to in writing,
+ \*    software distributed under the License is distributed on an
+ \*    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ \*    KIND, either express or implied\.  See the License for the
+ \*    specific language governing permissions and limitations
+ \*    under the License\.
+ \* ====================================================================
+'''
+
+SH_OLD_LICENSE = re.subn(r'(?m)^ \\\*', '#', OLD_LICENSE)[0]
+
+# Remember not to do regexp quoting for NEW_LICENSE.  Only OLD_LICENSE
+# is used for matching; NEW_LICENSE is inserted as-is.
+NEW_LICENSE = '''\
+ * ====================================================================
+ *    Licensed to the Subversion Corporation (SVN Corp.) under one
+ *    or more contributor license agreements.  See the NOTICE file
+ *    distributed with this work for additional information
+ *    regarding copyright ownership.  The SVN Corp. licenses this file
+ *    to you under the Apache License, Version 2.0 (the
+ *    "License"); you may not use this file except in compliance
+ *    with the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing,
+ *    software distributed under the License is distributed on an
+ *    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ *    KIND, either express or implied.  See the License for the
+ *    specific language governing permissions and limitations
+ *    under the License.
+ * ====================================================================
+'''
+
+SH_NEW_LICENSE = re.subn(r'(?m)^ \*', '#', NEW_LICENSE)[0]
+
+re_OLD = re.compile(OLD_LICENSE)
+re_SH_OLD = re.compile(SH_OLD_LICENSE)
+re_EXCLUDE = re.compile(
+    r'automatically generated by SWIG'
+    + r'|Generated from configure\.in'
+    + r'|placed into the public domain'
+    )
+
+c_comment_suffices = ('.c', '.java', '.h', '.cpp', '.hw', '.pas')
+
+# Yes, this is an empty tuple. No types that fit in this category uniformly
+# have a copyright block.
+# Possible types to add here:
+# ('.bat', '.py', '.pl', '.in')
+sh_comment_suffices = ()
+
+def check_file(fname, old_re, new_lic):
+  s = open(fname).read()
+  if (not old_re.search(s)
+      and not re_EXCLUDE.search(s)):
+    print(fname)
+
+def change_license(fname, old_re, new_lic):
+  s = open(fname).read()
+  m = old_re.search(s)
+  if not m:
+    print('ERROR: missing old license: %s' % fname)
+  else:
+    s = s[:m.start()] + new_lic + s[m.end():]
+    open(fname, 'w').write(s)
+    print('Changed: %s' % fname)
+
+def visit(baton, dirname, dircontents):
+  file_func = baton
+  for i in dircontents:
+    # Don't recurse into certain directories
+    if i in ('.svn', '.libs'):
+      dircontents.remove(i)
+      continue
+
+    extension = os.path.splitext(i)[1]
+    fullname = os.path.join(dirname, i)
+
+    if os.path.isdir(fullname):
+      continue
+
+    if extension in c_comment_suffices:
+      file_func(fullname, re_OLD, NEW_LICENSE)
+    elif extension in sh_comment_suffices:
+      file_func(fullname, re_SH_OLD, SH_NEW_LICENSE)
+
+def main():
+  file_func = check_file
+  if sys.argv[1] == '-C':
+    print('Changing license text...')
+    del sys.argv[1]
+    file_func = change_license
+
+  for f in sys.argv[1:]:
+    if os.path.isdir(f):
+      baton = file_func
+      for dirpath, dirs, files in os.walk(f):
+        visit(baton, dirpath, dirs + files)
+    else:
+      baton = file_func
+      dir, i = os.path.split(f)
+      visit(baton, dir, i)
+
+if __name__ == '__main__':
+  main()