Base monitoring generation script

Monitoring source generation script with mako template to
generate an empty set of events. The events will be parsed and added
under openbmc/openbmc#1493

Resolves openbmc/openbmc#1343

Change-Id: I40225f070212af36f410d99bc7ead95961e70997
Signed-off-by: Matthew Barth <msbarth@us.ibm.com>

4 files changed, 67 insertions, 0 deletions

diff --git a/configure.ac b/configure.ac
index 816882c..38e8d79 100644
--- a/configure.ac
+++ b/configure.ac
@@ -12,6 +12,9 @@ AM_PROG_AR
 AC_PROG_INSTALL
 AC_PROG_MAKE_SET
 AC_PROG_AWK
+AM_PATH_PYTHON([2.7],
+    [AC_SUBST([PYTHON], [echo "$PYTHON"])],
+    [AC_MSG_ERROR([Could not find python-2.7 installed...python-2.7 is required])])
 
 # Checks for libraries.
 PKG_CHECK_MODULES([SDBUSPLUS], [sdbusplus],, AC_MSG_ERROR(["Requires sdbusplus package."]))
diff --git a/src/Makefile.am b/src/Makefile.am
index 8c57553..233b610 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -14,3 +14,9 @@ phosphor_dbus_monitor_LDADD = \
 phosphor_dbus_monitor_CXXFLAGS = \
 	$(SDBUSPLUS_CFLAGS) \
 	$(PHOSPHOR_LOGGING_CFLAGS)
+
+BUILT_SOURCES = generated.cpp
+CLEANFILES = generated.cpp
+
+generated.cpp:
+	$(AM_V_GEN)$(PYTHON) ${srcdir}/gen-group-defs.py -y ${srcdir}/example/monitoring_defs.yaml -o ${builddir}
diff --git a/src/gen-group-defs.py b/src/gen-group-defs.py
new file mode 100755
index 0000000..56ac00f
--- /dev/null
+++ b/src/gen-group-defs.py
@@ -0,0 +1,33 @@
+#!/usr/bin/env python
+
+import os
+import sys
+import yaml
+from argparse import ArgumentParser
+from mako.template import Template
+
+
+def generate(yaml_file, output_file):
+    with open(yaml_file, 'r') as yaml_input:
+        yaml_data = yaml.safe_load(yaml_input) or {}
+
+    with open(output_file, 'w') as gen_out:
+        gen_out.write(Template(filename='generated.mako.cpp').render(
+            events=yaml_data))
+
+
+if __name__ == '__main__':
+    parser = ArgumentParser()
+    # Groups of items and how they should be monitored yaml file
+    parser.add_argument(
+        "-y", "--yaml", dest="input_yaml",
+        default="example/monitoring_defs.yaml",
+        help="Input item monitoring definition yaml to parse")
+    parser.add_argument(
+        "-o", "--outdir", dest="output_dir",
+        default=os.path.abspath('.'),
+        help="Output directory for source files generated")
+    args = parser.parse_args(sys.argv[1:])
+
+    yaml_file = os.path.abspath(args.input_yaml)
+    generate(yaml_file, os.path.join(args.output_dir, "generated.cpp"))
diff --git a/src/generated.mako.cpp b/src/generated.mako.cpp
new file mode 100644
index 0000000..a8f6d60
--- /dev/null
+++ b/src/generated.mako.cpp
@@ -0,0 +1,25 @@
+## This file is a template, the comment below is emitted into the generated file
+/* This is an auto generated file. Do not edit. */
+#include "data_types.hpp"
+#include "monitor.hpp"
+#include "functor.hpp"
+#include "conditions.hpp"
+#include "actions.hpp"
+
+namespace phosphor
+{
+namespace dbus
+{
+namespace monitoring
+{
+
+const std::vector<std::tuple<std::vector<std::shared_ptr<Event>>,
+                             std::vector<Action>>>
+    Monitor::events
+{
+
+};
+
+} // namespace monitoring
+} // namespace dbus
+} // namespace phosphor