feat: click cli

main.py

@@ -1,14 +1,22 @@
 from jinja2 import Environment, FileSystemLoader, meta
+import click
 
-env = Environment(loader=FileSystemLoader('.'))
+@click.command()
-filename =  'index.html'
+@click.option('--output', '-o', default='output.html', help='Name of Output File')
-# get undeclared variables
+def main(output):
-template_source = env.loader.get_source(env, filename)
+    env = Environment(loader=FileSystemLoader('.'))
-parsed_content = env.parse(template_source)
+    filename =  'index.html'
-vars = meta.find_undeclared_variables(parsed_content)
+    # get undeclared variables
-vars = dict.fromkeys(sorted(vars), None)
+    template_source = env.loader.get_source(env, filename)
-for var in vars:
+    parsed_content = env.parse(template_source)
+    vars = meta.find_undeclared_variables(parsed_content)
+    vars = dict.fromkeys(sorted(vars), None)
+    for var in vars:
         vars[var] = input(var+ ' :')
-# render template
+    # render template
-template = env.get_template(filename)
+    template = env.get_template(filename)
-print(template.render(vars))
+    with open(output,'w') as out:
+        out.write(template.render(vars))
+
+if __name__ == '__main__':
+    main()