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# coding: utf-8
"""
This module provides command-line access to pystache.
Run this script using the -h option for command-line help.
"""
try:
import json
except:
# The json module is new in Python 2.6, whereas simplejson is
# compatible with earlier versions.
import simplejson as json
# The optparse module is deprecated in Python 2.7 in favor of argparse.
# However, argparse is not available in Python 2.6 and earlier.
from optparse import OptionParser
import sys
# We use absolute imports here to allow use of this script from its
# location in source control (e.g. for development purposes).
# Otherwise, the following error occurs:
#
# ValueError: Attempted relative import in non-package
#
from pystache.renderer import Renderer
USAGE = """\
%prog [-h] template context
Render a mustache template with the given context.
positional arguments:
template A filename or template string.
context A filename or JSON string."""
def parse_args(sys_argv, usage):
"""
Return an OptionParser for the script.
"""
args = sys_argv[1:]
parser = OptionParser(usage=usage)
options, args = parser.parse_args(args)
template, context = args
return template, context
def main(sys_argv):
template, context = parse_args(sys_argv, USAGE)
if template.endswith('.mustache'):
template = template[:-9]
renderer = Renderer()
try:
template = renderer.load_template(template)
except IOError:
pass
try:
context = json.load(open(context))
except IOError:
context = json.loads(context)
rendered = renderer.render(template, context)
print rendered
if __name__=='__main__':
main(sys.argv)
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