1 files changed, 36 insertions, 0 deletions
diff --git a/meson/scripts/vcstagger.py b/meson/scripts/vcstagger.py
new file mode 100644
index 000000000..390e37a8d
--- /dev/null
+++ b/meson/scripts/vcstagger.py
@@ -0,0 +1,36 @@
+#!/usr/bin/env python3
+
+# Copyright 2015-2016 The Meson development team
+
+# Licensed 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.
+
+import sys, os, subprocess, re
+
+def config_vcs_tag(infile, outfile, fallback, source_dir, replace_string, regex_selector, cmd):
+    try:
+        output = subprocess.check_output(cmd, cwd=source_dir)
+        new_string = re.search(regex_selector, output.decode()).group(1).strip()
+    except Exception:
+        new_string = fallback
+
+    new_data = open(infile).read().replace(replace_string, new_string)
+    if (not os.path.exists(outfile)) or (open(outfile).read() != new_data):
+        open(outfile, 'w').write(new_data)
+
+def run(args):
+    infile, outfile, fallback, source_dir, replace_string, regex_selector = args[0:6]
+    command = args[6:]
+    config_vcs_tag(infile, outfile, fallback, source_dir, replace_string, regex_selector, command)
+
+if __name__ == '__main__':
+    sys.exit(run(sys.argv[1:]))