Write parser for inventory to sensor mapping yaml.

Write python-based parser for inventory-sensor.yaml.
The parser generates inventory-sensor-gen.cpp, which is contains a map
containing the inventory object path as key and the sensor related info
as the value.

Change-Id: Ib0e0f61f075b0ba777417a8032074c9b66b2eef7
Signed-off-by: Tom Joseph <tomjoseph@in.ibm.com>

2 files changed, 87 insertions, 0 deletions

diff --git a/scripts/inventory-sensor.py b/scripts/inventory-sensor.py
new file mode 100755
index 0000000..77222f5
--- /dev/null
+++ b/scripts/inventory-sensor.py
@@ -0,0 +1,60 @@
+#!/usr/bin/env python
+
+import os
+import sys
+import yaml
+import argparse
+from mako.template import Template
+
+
+def generate_cpp(sensor_yaml, output_dir):
+    with open(os.path.join(script_dir, sensor_yaml), 'r') as f:
+        ifile = yaml.safe_load(f)
+        if not isinstance(ifile, dict):
+            ifile = {}
+
+        # Render the mako template
+
+        t = Template(filename=os.path.join(
+                     script_dir,
+                     "inventorysensor.mako.cpp"))
+
+        output_cpp = os.path.join(output_dir, "inventory-sensor-gen.cpp")
+        with open(output_cpp, 'w') as fd:
+            fd.write(t.render(sensorDict=ifile))
+
+
+def main():
+
+    valid_commands = {
+        'generate-cpp': generate_cpp
+    }
+    parser = argparse.ArgumentParser(
+        description="Inventory Object to IPMI SensorID code generator")
+
+    parser.add_argument(
+        '-i', '--sensor_yaml', dest='sensor_yaml',
+        default='example.yaml', help='input sensor yaml file to parse')
+
+    parser.add_argument(
+        "-o", "--output-dir", dest="outputdir",
+        default=".",
+        help="output directory")
+
+    parser.add_argument(
+        'command', metavar='COMMAND', type=str,
+        choices=valid_commands.keys(),
+        help='Command to run.')
+
+    args = parser.parse_args()
+
+    if (not (os.path.isfile(os.path.join(script_dir, args.sensor_yaml)))):
+        sys.exit("Can not find input yaml file " + args.sensor_yaml)
+
+    function = valid_commands[args.command]
+    function(args.sensor_yaml, args.outputdir)
+
+
+if __name__ == '__main__':
+    script_dir = os.path.dirname(os.path.realpath(__file__))
+    main()
diff --git a/scripts/inventorysensor.mako.cpp b/scripts/inventorysensor.mako.cpp
new file mode 100644
index 0000000..000f758
--- /dev/null
+++ b/scripts/inventorysensor.mako.cpp
@@ -0,0 +1,27 @@
+## This file is a template.  The comment below is emitted
+## into the rendered file; feel free to edit this file.
+
+// !!! WARNING: This is a GENERATED Code..Please do NOT Edit !!!
+
+#include "types.hpp"
+using namespace ipmi::sensor;
+
+extern const InvObjectIDMap invSensors = {
+% for key in sensorDict.iterkeys():
+   % if key:
+{"${key}",
+    {
+<%
+       objectPath = sensorDict[key]
+       sensorID = objectPath["sensorID"]
+       sensorType = objectPath["sensorType"]
+       eventReadingType = objectPath["eventReadingType"]
+       offset = objectPath["offset"]
+%>
+        ${sensorID},${sensorType},${eventReadingType},${offset}
+    }
+},
+   % endif
+% endfor
+};
+