scripts: support Sercomm partition tags

Sercomm uses a custom layout for partition tags:
	char part_name[32];
	char size[32];
	char part_version[32];
	char reserved[32];
	char rootfs_version[32];

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

diff --git a/scripts/sercomm-partition-tag.py b/scripts/sercomm-partition-tag.py
new file mode 100755 (executable)
index 0000000..ef49af8
--- /dev/null
+++ b/scripts/sercomm-partition-tag.py
@@ -0,0 +1,81 @@
+#!/usr/bin/env python3
+
+import argparse
+import os
+import struct
+
+def create_header(args, size):
+       header = struct.pack('32s32s32s32s32s',
+               args.part_name.encode('ascii'),
+               str(size).encode('ascii'),
+               args.part_version.encode('ascii'),
+               "".encode('ascii'),
+               args.rootfs_version.encode('ascii'))
+
+       return header
+
+def create_output(args):
+       in_st = os.stat(args.input_file)
+       in_size = in_st.st_size
+
+       header = create_header(args, in_size)
+       print(header)
+
+       in_f = open(args.input_file, 'r+b')
+       in_bytes = in_f.read(in_size)
+       in_f.close()
+
+       out_f = open(args.output_file, 'w+b')
+       out_f.write(header)
+       out_f.write(in_bytes)
+       out_f.close()
+
+def main():
+       global args
+
+       parser = argparse.ArgumentParser(description='')
+
+       parser.add_argument('--input-file',
+               dest='input_file',
+               action='store',
+               type=str,
+               help='Input file')
+
+       parser.add_argument('--output-file',
+               dest='output_file',
+               action='store',
+               type=str,
+               help='Output file')
+
+       parser.add_argument('--part-name',
+               dest='part_name',
+               action='store',
+               type=str,
+               help='Partition Name')
+
+       parser.add_argument('--part-version',
+               dest='part_version',
+               action='store',
+               type=str,
+               help='Partition Version')
+
+       parser.add_argument('--rootfs-version',
+               dest='rootfs_version',
+               action='store',
+               type=str,
+               help='RootFS lib version')
+
+       args = parser.parse_args()
+
+       if not args.rootfs_version:
+               args.rootfs_version = ""
+
+       if ((not args.input_file) or
+           (not args.output_file) or
+           (not args.part_name) or
+           (not args.part_version)):
+               parser.print_help()
+
+       create_output(args)
+
+main()