sdbus++: Utility for rendering interface YAML

Change-Id: I0ceeaba9280ef9a05c03edb2a72a15ba8591b0be
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/tools/sdbus++ b/tools/sdbus++
new file mode 100755
index 0000000..a3ed715
--- /dev/null
+++ b/tools/sdbus++
@@ -0,0 +1,34 @@
+#!/bin/env python
+import sdbusplus
+import mako.lookup
+import argparse
+
+def main():
+    valid_types = { 'interface': sdbusplus.Interface }
+    valid_processes = { 'markdown' : "markdown" }
+
+    parser = argparse.ArgumentParser(description='Process sdbus++ YAML files.')
+
+    parser.add_argument('-r', '--rootdir', dest='rootdir', default='example',
+                        type=str, help='Location of files to process.')
+    parser.add_argument('-t', '--templatedir', dest='templatedir',
+                        default='templates', type=str,
+                        help='Location of templates files.')
+    parser.add_argument('typeName', metavar='TYPE', type=str,
+                        choices=valid_types.keys(), help='Type to operate on.')
+    parser.add_argument('process', metavar='PROCESS', type=str,
+                        choices=valid_processes.keys(),
+                        help='Process to apply.')
+    parser.add_argument('item', metavar='ITEM', type=str,
+                        help='Item to process.')
+
+    args = parser.parse_args();
+
+    lookup = mako.lookup.TemplateLookup(directories=[args.templatedir])
+
+    instance = valid_types[args.typeName].load(args.item, args.rootdir)
+    function = getattr(instance, args.process)
+    print(function(lookup))
+
+if __name__ == '__main__':
+    main()