39 lines
992 B
Python
39 lines
992 B
Python
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#!/usr/bin/python
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# This file is in the public domain.
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"""
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Expand Jinja2 templates based on JSON input.
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First command-line argument must be the JSON input.
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The tool reads the template from stdin and writes
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the expanded output to stdout.
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@author Christian Grothoff
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"""
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import sys
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import json
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import jinja2
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from jinja2 import BaseLoader
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class StdinLoader(BaseLoader):
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def __init__ (self):
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self.path = '-'
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def get_source(self, environment, template):
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source = sys.stdin.read().decode('utf-8')
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return source, self.path, lambda: false
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jsonFile = open (sys.argv[1], 'r')
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jsonData = json.load(jsonFile)
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jinjaEnv = jinja2.Environment(loader=StdinLoader(),
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lstrip_blocks=True,
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trim_blocks=True,
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undefined=jinja2.StrictUndefined,
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autoescape=False)
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tmpl = jinjaEnv.get_template('stdin');
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print(tmpl.render(data = jsonData))
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