Created
April 25, 2018 23:13
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j2render - Python script to render Jinja2 templates on the CLI
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| #!/usr/local/bin/python | |
| # To get all dependencies for this, run: | |
| # pip install PyYAML jinja2 | |
| # To install, just copy it to /usr/local/bin. | |
| import sys, os | |
| import jinja2 | |
| import yaml | |
| def render(tpl_path, context): | |
| path, filename = os.path.split(tpl_path) | |
| return jinja2.Environment( | |
| loader=jinja2.FileSystemLoader(path or './') | |
| ).get_template(filename).render(context) | |
| def usage(): | |
| print(" j2render - Simple Jinja2 renderer \n") | |
| print("Usage:\n") | |
| print("j2render <template.anything> <context.yml> [-o | output.anything]\n") | |
| print("Options:") | |
| print(" -o: Print results directly to stdout, rather than writing to a file.") | |
| sys.exit(1) | |
| try: | |
| if "-o" in sys.argv: | |
| sys.argv.remove("-o") | |
| print_to_term = True | |
| else: | |
| print_to_term = False | |
| context = open(sys.argv[2], 'r') | |
| context = yaml.load(context) | |
| result = render(sys.argv[1], context) | |
| if not print_to_term: | |
| f = open(sys.argv[3], 'w') | |
| f.write(result) | |
| f.close() | |
| else: | |
| print(result) | |
| except IndexError: | |
| print("Missing an argument!") | |
| usage() | |
| except Exception as e: | |
| print("An unexpected error occurred: " + str(e)) | |
| usage() |
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