mingw: use CreateHardLink() directly

The function `CreateHardLink()` is available in all supported Windows
versions (even since Windows XP), so there is no more need to resolve it
at runtime.

Helped-by: Max Kirillov <max@max630.net>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Johannes Schindelin 2018-11-13 06:37:02 -08:00 committed by Junio C Hamano
parent d166e6afe5
commit 1e1a876bb2

View File

@ -2211,24 +2211,12 @@ int mingw_raise(int sig)
int link(const char *oldpath, const char *newpath)
{
typedef BOOL (WINAPI *T)(LPCWSTR, LPCWSTR, LPSECURITY_ATTRIBUTES);
static T create_hard_link = NULL;
wchar_t woldpath[MAX_PATH], wnewpath[MAX_PATH];
if (xutftowcs_path(woldpath, oldpath) < 0 ||
xutftowcs_path(wnewpath, newpath) < 0)
return -1;
if (!create_hard_link) {
create_hard_link = (T) GetProcAddress(
GetModuleHandle("kernel32.dll"), "CreateHardLinkW");
if (!create_hard_link)
create_hard_link = (T)-1;
}
if (create_hard_link == (T)-1) {
errno = ENOSYS;
return -1;
}
if (!create_hard_link(wnewpath, woldpath, NULL)) {
if (!CreateHardLinkW(wnewpath, woldpath, NULL)) {
errno = err_win_to_posix(GetLastError());
return -1;
}