45 lines
1.3 KiB
Python
Executable file
45 lines
1.3 KiB
Python
Executable file
#!/usr/bin/env python3
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# SPDX-License-Identifier: LGPL-2.1-or-later
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# pylint: disable=consider-using-with
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import ast
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import os
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import re
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import sys
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import jinja2
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def parse_config_h(filename):
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# Parse config.h file generated by meson.
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ans = {}
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for line in open(filename):
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m = re.match(r'#define\s+(\w+)\s+(.*)', line)
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if not m:
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continue
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a, b = m.groups()
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# The function ast.literal_eval() cannot evaluate octal integers, e.g. 0600.
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# So, it is intentional that the string below does not contain '0'.
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if b and (b[0] in '123456789"' or b == '0'):
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b = ast.literal_eval(b)
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ans[a] = b
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return ans
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def render(filename, defines):
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text = open(filename).read()
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template = jinja2.Template(text,
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trim_blocks=True,
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lstrip_blocks=True,
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keep_trailing_newline=True,
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undefined=jinja2.StrictUndefined)
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return template.render(defines)
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def main():
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defines = parse_config_h(sys.argv[1])
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output = render(sys.argv[2], defines)
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with open(sys.argv[3], 'w') as f:
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f.write(output)
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info = os.stat(sys.argv[2])
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os.chmod(sys.argv[3], info.st_mode)
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if __name__ == '__main__':
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main()
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