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#!/usr/bin/python2.7
"""Simple Mako renderer.
Just a wrapper around the mako rendering library.
"""
import getopt
import imp
import os
import sys
from mako.lookup import TemplateLookup
from mako.runtime import Context
from mako.template import Template
import simplejson
import bunch
# Imports a plugin
def import_plugin(name):
_, base_ex = os.path.split(name)
base, _ = os.path.splitext(base_ex)
with open(name, 'r') as plugin_file:
plugin_code = plugin_file.read()
plugin_module = imp.new_module(base)
exec plugin_code in plugin_module.__dict__
return plugin_module
def out(msg):
print >> sys.stderr, msg
def showhelp():
out('mako-renderer.py [-o out] [-m cache] [-d dict] [-d dict...] template')
def main(argv):
got_input = False
module_directory = None
dictionary = {}
json_dict = {}
got_output = False
output_file = sys.stdout
plugins = []
try:
opts, args = getopt.getopt(argv, 'hm:d:o:p:')
except getopt.GetoptError:
out('Unknown option')
showhelp()
sys.exit(2)
for opt, arg in opts:
if opt == '-h':
out('Displaying showhelp')
showhelp()
sys.exit()
elif opt == '-o':
if got_output:
out('Got more than one output')
showhelp()
sys.exit(3)
got_output = True
output_file = open(arg, 'w')
elif opt == '-m':
if module_directory is not None:
out('Got more than one cache directory')
showhelp()
sys.exit(4)
module_directory = arg
elif opt == '-d':
dict_file = open(arg, 'r')
bunch.merge_json(json_dict, simplejson.loads(dict_file.read()))
dict_file.close()
elif opt == '-p':
plugins.append(import_plugin(arg))
for plugin in plugins:
plugin.mako_plugin(json_dict)
for k, v in json_dict.items():
dictionary[k] = bunch.to_bunch(v)
ctx = Context(output_file, **dictionary)
for arg in args:
got_input = True
template = Template(filename=arg,
module_directory=module_directory,
lookup=TemplateLookup(directories=['.']))
template.render_context(ctx)
if not got_input:
out('Got nothing to do')
showhelp()
output_file.close()
if __name__ == '__main__':
main(sys.argv[1:])
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