ELEC-573: Add support for Golang Templates (#32)

This configures codegen-tooling to support Golang and build Golang templates.

This is to support faking of data in Go to aid in website development.

.travis.yml

@@ -15,6 +15,7 @@ branches:
 
 before_install:
  - sudo apt-get -qq update
+ - sudo apt-get install golang
 
 install:
  - pip install -r requirements.txt

Makefile

@@ -4,6 +4,7 @@ gen: protos
  @echo "Generating from templates..."
  @python codegen/build.py 
  @find out -type f \( -iname '*.[ch]' -o -iname '*.ts' \) | xargs -r clang-format -i -fallback-style=Google
+ @find out -type f \( -iname '*.go' \) | xargs -r gofmt -w
 
 lint:
  @echo "Linting..."

helpers/helpers.mako

@@ -19,3 +19,24 @@ Args:
  % endfor
  NUM_${prefix}S = ${len(data)} \
 </%def>
+
+<%doc>
+Helps generating enum body content in the format:
+
+ prefix_val0 type = 0,
+ prefix_val1 type = 2,
+ prefix_val2 type = 5,
+ ...
+
+Args:
+ data: a dictionary of data in the range (empty values should have a value of None)
+ prefix: the prefix to use
+ go_type: the type in go
+</%doc>
+<%def name="generate_enum_go(data, prefix, go_type)"> \
+ % for key, value in data.items():
+ % if value != None:
+ ${prefix}${''.join(x.title() for x in value.split('_'))} ${go_type} = ${key}
+ % endif
+ % endfor
+</%def>

templates/can_msg_defs.mako.go

@@ -0,0 +1,18 @@
+<%namespace name="helpers" file="/helpers/helpers.mako" /> \
+<% from data import NUM_CAN_MESSAGES, NUM_CAN_DEVICES, parse_can_device_enum, parse_can_message_enum, parse_can_frames %> \
+package CanMsgDefs
+
+type CanDeviceId uint16
+type CanMsgId uint32
+
+// For setting the CAN device
+const (
+ <% can_devices = parse_can_device_enum() %> \
+${helpers.generate_enum_go(can_devices, 'SystemCanDevice', 'CanDeviceId')}
+) 
+
+// For setting the CAN message ID
+const (
+ <% can_messages = parse_can_message_enum(options.filename) %> \
+${helpers.generate_enum_go(can_messages, 'SystemCanMessage', 'CanMsgId')}
+)