101 lines
2.1 KiB
Python
Executable File
101 lines
2.1 KiB
Python
Executable File
#!/usr/bin/env python3
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import os
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import sys
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import json
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import argparse
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from jinja2 import Environment, FileSystemLoader, select_autoescape
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def parse_args():
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parser = argparse.ArgumentParser(
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prog='parse_template',
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description='a jinja template parser',
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add_help=False
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)
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parser.add_argument(
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'-h', '--help',
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action='help',
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help='display help message',
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)
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parser.add_argument(
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'-D', '--define',
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action='append',
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nargs=2,
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type=str,
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metavar=('key', 'value'),
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help='define data with key-value pairs',
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)
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parser.add_argument(
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'-o', '--output',
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nargs='?',
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type=str,
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metavar='file',
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help='output file or "-" for stdout',
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)
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parser.add_argument(
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'docdir',
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type=str,
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metavar='docdir',
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help='Full documentation directory path',
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)
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parser.add_argument(
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'template',
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type=str,
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metavar='template',
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help='template file path relative to docdir',
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)
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return parser.parse_args()
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def parse_value(value):
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try:
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return json.loads(value)
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except ValueError:
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return value
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def main():
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args = parse_args()
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doc_dir = args.docdir
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template_path = args.template
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output = args.output or os.path.join(doc_dir, template_path)
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data = {k: parse_value(v) for k, v in args.define or []}
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env = Environment(
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loader=FileSystemLoader(doc_dir),
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autoescape=False,
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block_start_string='<!-- {%',
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block_end_string='%} -->',
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variable_start_string='<!-- {{',
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variable_end_string='}} -->',
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comment_start_string='<!-- {#',
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comment_end_string='#} -->',
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auto_reload=True,
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trim_blocks=True,
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lstrip_blocks=True
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)
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template = env.get_template(template_path)
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if output == '-':
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print(template.render(**data))
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else:
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fout = open(output, 'w')
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try:
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fout.write(template.render(**data))
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finally:
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fout.close()
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if __name__ == '__main__':
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main()
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