inventory: enable updating extra properties

While the openpower vpd parser, in order to update inventory, retrieves
most properties from the vpd itself, there could be some properties
whose values could be provided by other sources, such as the Machine
Readable Workbook.

Provide a mechanism to enable the above by having the extra property
information and values supplied via a YAML file, via which code is
generated, which in turn can be used by the parser to update inventory.

Change-Id: I4005c8a8d429085cc9ad279cb28e216c50b63c5d
Signed-off-by: Deepak Kodihalli <dkodihal@in.ibm.com>

3 files changed, 81 insertions, 0 deletions

diff --git a/extra-properties-example.yaml b/extra-properties-example.yaml
new file mode 100644
index 0000000..09d9844
--- /dev/null
+++ b/extra-properties-example.yaml
@@ -0,0 +1,7 @@
+/system/bmc:
+    xyz.openbmc_project.Inventory.Decorator.Replaceable:
+        FieldReplaceable: 'false'
+
+/system/bmc/ethernet:
+    xyz.openbmc_project.Inventory.Decorator.Replaceable:
+        FieldReplaceable: 'false' 
diff --git a/extra-properties.mako.hpp b/extra-properties.mako.hpp
new file mode 100644
index 0000000..6b006c2
--- /dev/null
+++ b/extra-properties.mako.hpp
@@ -0,0 +1,40 @@
+## This file is a template.  The comment below is emitted
+## into the rendered file; feel free to edit this file.
+// WARNING: Generated header. Do not edit!
+
+#pragma once
+
+#include <string>
+#include <map>
+#include "types.hpp"
+
+namespace openpower
+{
+namespace vpd
+{
+namespace inventory
+{
+namespace extra
+{
+
+const std::map<Path, InterfaceMap> objects = {
+% for path in dict.iterkeys():
+<%
+    interfaces = dict[path]
+%>\
+    {"${path}",{
+    % for interface,properties in interfaces.iteritems():
+        {"${interface}",{
+        % for property,value in properties.iteritems():
+            {"${property}", ${value}},
+        % endfor
+        }},
+    % endfor
+    }},
+% endfor
+};
+
+} // namespace extra
+} // namespace inventory
+} // namespace vpd
+} // namespace openpower
diff --git a/extra-properties.py b/extra-properties.py
new file mode 100755
index 0000000..728fc14
--- /dev/null
+++ b/extra-properties.py
@@ -0,0 +1,34 @@
+#!/usr/bin/env python
+
+import os
+import yaml
+from mako.template import Template
+import argparse
+
+
+def main():
+    parser = argparse.ArgumentParser(
+        description="OpenPOWER FRU VPD parser and code generator")
+
+    parser.add_argument(
+        '-e', '--extra_props_yaml',
+        dest='extra_props_yaml',
+        default='extra-properties-example.yaml',
+        help='input extra properties yaml file to parse')
+    args = parser.parse_args()
+
+    with open(os.path.join(script_dir, args.extra_props_yaml), 'r') as fd:
+        yamlDict = yaml.safe_load(fd)
+
+        # Render the mako template
+        template = os.path.join(script_dir, 'extra-properties.mako.hpp')
+        t = Template(filename=template)
+        with open('extra-properties-gen.hpp', 'w') as fd:
+            fd.write(
+                t.render(
+                    dict=yamlDict))
+
+
+if __name__ == '__main__':
+    script_dir = os.path.dirname(os.path.realpath(__file__))
+    main()