"""Functions used to generate source files during build time

All such functions are invoked in a subprocess on Windows to prevent build flakiness.

"""

import os
from detect import get_mingw_bin_prefix
from detect import try_cmd
from platform_methods import subprocess_main


def make_debug_mingw(target, source, env):
    # Force separate debug symbols if executable size is larger than 1.9 GB.
    if env["separate_debug_symbols"] or os.stat(target[0]).st_size >= 2040109465:
        mingw_bin_prefix = get_mingw_bin_prefix(env["mingw_prefix"], env["arch"])
        if try_cmd("objcopy --version", env["mingw_prefix"], env["arch"]):
            os.system(mingw_bin_prefix + "objcopy --only-keep-debug {0} {0}.debugsymbols".format(target[0]))
        else:
            os.system("objcopy --only-keep-debug {0} {0}.debugsymbols".format(target[0]))
        if try_cmd("strip --version", env["mingw_prefix"], env["arch"]):
            os.system(mingw_bin_prefix + "strip --strip-debug --strip-unneeded {0}".format(target[0]))
        else:
            os.system("strip --strip-debug --strip-unneeded {0}".format(target[0]))
        if try_cmd("objcopy --version", env["mingw_prefix"], env["arch"]):
            os.system(mingw_bin_prefix + "objcopy --add-gnu-debuglink={0}.debugsymbols {0}".format(target[0]))
        else:
            os.system("objcopy --add-gnu-debuglink={0}.debugsymbols {0}".format(target[0]))


if __name__ == "__main__":
    subprocess_main(globals())