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Mercurial > demo / ffi/build.py

changeset 18: a1137af05c8d
parent: 315fedf35bc7
author: ellis <ellis@rwest.io>
date: Mon, 29 May 2023 21:46:21 -0400
permissions: -rw-r--r--
description: removed fig, use sexprs instead 
     1 try:
     2     from cffi import FFI
     3 except ImportError:
     4     print("pip install cffi, included with PyPy")
     5 
     6 import os
     7 import re
     8 import pathlib
     9 
    10 
    11 def parse_header(header):
    12     h = open(header, "r").read().lstrip()
    13     cdef = re.sub(
    14         r"^(#|\s*\/*\*|extern).*[\r\n]|.*\"C\"$|^(?:[\t ]*(?:\r?\n|\r))+",
    15         "",
    16         h,
    17         flags=re.MULTILINE,
    18     )
    19     return cdef
    20 
    21 
    22 def init_ffi(cdef):
    23     ffi = FFI()
    24     ffi.set_source(
    25         "_demo",
    26         """
    27         #include "demo.h"
    28         """,
    29 #        libraries=["demo"],
    30         library_dirs=["."],
    31         include_dirs=["."],
    32     )
    33 
    34     ffi.cdef(cdef)
    35 
    36     return ffi
    37 
    38 
    39 def compile(ffi, lib_dir, v):
    40     os.environ["LD_RUN_PATH"] = os.path.abspath(lib_dir)
    41     ffi.compile(verbose=v)
    42 
    43 
    44 if __name__ == "__main__":
    45     build_dir = pathlib.Path(__file__).parent
    46     cdef = parse_header(build_dir / "demo.h")
    47     print(cdef)
    48     compile(init_ffi(cdef), build_dir, True)