add a script to extract and uncompress from a mar file

Change-Id: I87c11b8f7d42bc438b88482a8dd3fd1512a06df8

1 files changed, 48 insertions, 0 deletions

diff --git a/bin/update/uncompress_mar.py b/bin/update/uncompress_mar.py
new file mode 100755
index 000000000000..4c5f40733d41
--- /dev/null
+++ b/bin/update/uncompress_mar.py
@@ -0,0 +1,48 @@
+#!/usr/bin/env python3
+# -*- tab-width: 4; indent-tabs-mode: nil; py-indent-offset: 4 -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+# Extract a mar file and uncompress the content
+
+import os
+import sys
+import subprocess
+
+def uncompress_content(file_path):
+    bzip2 = os.environ.get('BZIP2', 'bzip2')
+    file_path_compressed = file_path + ".bz2"
+    os.rename(file_path, file_path_compressed)
+    subprocess.check_call(["bzip2", "-d", file_path_compressed])
+
+def extract_mar(mar_file, target_dir):
+    mar = os.environ.get('MAR', 'mar')
+    subprocess.check_call([mar, "-C", target_dir, "-x", mar_file])
+    file_info = subprocess.check_output([mar, "-t", mar_file])
+    lines = file_info.splitlines()
+    for line in lines:
+        info = line.split()
+        # ignore header line
+        if info[2] == b'NAME':
+            continue
+
+        uncompress_content(os.path.join(target_dir, info[2].decode("utf-8")))
+
+def main():
+    if len(sys.argv) != 3:
+        print("Help: This program takes exactly two arguments pointing to a mar file and a target location")
+        sys.exit(1)
+
+    mar_file = sys.argv[1]
+    target_dir = sys.argv[2]
+    extract_mar(mar_file, target_dir)
+
+if __name__ == "__main__":
+    main()
+
+# vim: set shiftwidth=4 softtabstop=4 expandtab: