tools/meson-render-jinja2.py

   1 #!/usr/bin/env python3
   2 # SPDX-License-Identifier: LGPL-2.1-or-later
   3
   4 import jinja2
   5 import re
   6 import sys
   7
   8 def parse_config_h(filename):
   9     # Parse config.h file generated by meson.
  10     ans = {}
  11     for line in open(filename):
  12         m = re.match(r'#define\s+(\w+)\s+(.*)', line)
  13         if not m:
  14             continue
  15         a, b = m.groups()
  16         if b and b[0] in '0123456789"':
  17             b = eval(b)
  18         ans[a] = b
  19     return ans
  20
  21 def render(filename, defines):
  22     text = open(filename).read()
  23     template = jinja2.Template(text, trim_blocks=True, undefined=jinja2.StrictUndefined)
  24     return template.render(defines)
  25
  26 if __name__ == '__main__':
  27     defines = parse_config_h(sys.argv[1])
  28     print(render(sys.argv[2], defines))