96 lines
2.3 KiB
Python
96 lines
2.3 KiB
Python
# coding: utf-8
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"""
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This module provides command-line access to pystache.
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Run this script using the -h option for command-line help.
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"""
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try:
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import json
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except:
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# The json module is new in Python 2.6, whereas simplejson is
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# compatible with earlier versions.
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try:
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import simplejson as json
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except ImportError:
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# Raise an error with a type different from ImportError as a hack around
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# this issue:
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# http://bugs.python.org/issue7559
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from sys import exc_info
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ex_type, ex_value, tb = exc_info()
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new_ex = Exception("%s: %s" % (ex_type.__name__, ex_value))
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raise new_ex.__class__, new_ex, tb
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# The optparse module is deprecated in Python 2.7 in favor of argparse.
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# However, argparse is not available in Python 2.6 and earlier.
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from optparse import OptionParser
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import sys
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# We use absolute imports here to allow use of this script from its
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# location in source control (e.g. for development purposes).
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# Otherwise, the following error occurs:
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#
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# ValueError: Attempted relative import in non-package
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#
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from pystache.common import TemplateNotFoundError
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from pystache.renderer import Renderer
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USAGE = """\
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%prog [-h] template context
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Render a mustache template with the given context.
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positional arguments:
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template A filename or template string.
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context A filename or JSON string."""
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def parse_args(sys_argv, usage):
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"""
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Return an OptionParser for the script.
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"""
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args = sys_argv[1:]
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parser = OptionParser(usage=usage)
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options, args = parser.parse_args(args)
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template, context = args
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return template, context
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# TODO: verify whether the setup() method's entry_points argument
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# supports passing arguments to main:
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#
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# http://packages.python.org/distribute/setuptools.html#automatic-script-creation
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#
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def main(sys_argv=sys.argv):
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template, context = parse_args(sys_argv, USAGE)
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if template.endswith('.mustache'):
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template = template[:-9]
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renderer = Renderer()
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try:
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template = renderer.load_template(template)
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except TemplateNotFoundError:
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pass
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try:
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context = json.load(open(context))
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except IOError:
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context = json.loads(context)
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rendered = renderer.render(template, context)
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print rendered
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if __name__=='__main__':
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main()
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