systemd/tools/meson-render-jinja2.py

38 lines
983 B
Python
Executable File

#!/usr/bin/env python3
# SPDX-License-Identifier: LGPL-2.1-or-later
import ast
import os
import re
import sys
import jinja2
def parse_config_h(filename):
# Parse config.h file generated by meson.
ans = {}
for line in open(filename):
m = re.match(r'#define\s+(\w+)\s+(.*)', line)
if not m:
continue
a, b = m.groups()
if b and b[0] in '0123456789"':
b = ast.literal_eval(b)
ans[a] = b
return ans
def render(filename, defines):
text = open(filename).read()
template = jinja2.Template(text, trim_blocks=True, undefined=jinja2.StrictUndefined)
return template.render(defines)
if __name__ == '__main__':
defines = parse_config_h(sys.argv[1])
defines.update(parse_config_h(sys.argv[2]))
output = render(sys.argv[3], defines)
with open(sys.argv[4], 'w') as f:
f.write(output)
f.write('\n')
info = os.stat(sys.argv[3])
os.chmod(sys.argv[4], info.st_mode)