diff -r c821b5ab8895 -r eddde70cedd8 scripts/check_license_header.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/scripts/check_license_header.py	Tue Feb 20 01:23:04 2024 -0600
@@ -0,0 +1,113 @@
+#!/usr/bin/env python3
+
+# Purple - Internet Messaging Library
+# Copyright (C) Pidgin Developers <devel@pidgin.im>
+#
+# Purple is the legal property of its developers, whose names are too numerous
+# to list here. Please refer to the COPYRIGHT file distributed with this
+# source distribution.
+#
+# This library 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 library 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 library; if not, see <https://www.gnu.org/licenses/>.
+
+import difflib
+import os
+import sys
+
+HEADER = """\
+/*
+ * Purple - Internet Messaging Library
+ * Copyright (C) Pidgin Developers <devel@pidgin.im>
+ *
+ * Purple is the legal property of its developers, whose names are too numerous
+ * to list here. Please refer to the COPYRIGHT file distributed with this
+ * source distribution.
+ *
+ * This library 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 library 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 library; if not, see <https://www.gnu.org/licenses/>.
+ */
+
+""".splitlines(keepends=True)
+
+header_lines = len(HEADER)
+
+if len(sys.argv) < 4:
+    print('usage: directory template-file file...')
+    sys.exit(1)
+
+path = sys.argv[1]
+
+header = ""
+with open(os.path.join(path, sys.argv[2]), 'r') as f:
+    header = f.read().splitlines(keepends=True)
+
+error = False
+
+debug = False
+
+for filename in sys.argv[3:]:
+    file_data = None
+    with open(os.path.join(path, filename), 'r') as f:
+        file_data = f.read().splitlines(keepends=True)
+
+    # Look for a starting commenting ignoring newlines, if we find code, abort.
+    comment_start = False
+    comment_end = 0
+    for i, line in enumerate(file_data):
+        if line.startswith('/*'):
+            comment_start = True
+        elif comment_start and line.endswith('*/\n'):
+            comment_end = i
+            continue
+
+        if line.strip() == '':
+            continue
+
+        if comment_start and comment_end != 0:
+            header_end = i
+            break
+
+    if comment_start:
+        new_data = HEADER + file_data[header_end:]
+    else:
+        new_data = HEADER + file_data
+
+    if debug:
+        sys.stdout.writelines(new_data[:30])
+        print(f'comment_start: {comment_start}')
+        print(f'comment_end: {comment_end}')
+        print(f'header_end: {header_end}')
+        sys.stdout.writelines(file_data[:25])
+
+    diff = [*difflib.unified_diff(file_data, new_data,
+                                  fromfile=f'a/{filename}',
+                                  tofile=f'b/{filename}')]
+    if diff:
+        sys.stdout.writelines(diff)
+        error = True
+
+    if debug:
+        sys.exit(1)
+
+if error:
+    sys.exit(1)