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mingw: fix fatal error working on mapped network drives on Windows

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In 1e64d18 (mingw: do resolve symlinks in `getcwd()`) a problem was
introduced that causes git for Windows to stop working with certain
mapped network drives (in particular, drives that are mapped to
locations with long path names). Error message was "fatal: Unable to
read current working directory: No such file or directory". Present
change fixes this issue as discussed in
https://github.com/git-for-windows/git/issues/2480

Signed-off-by: Bjoern Mueller <bjoernm@gmx.de>
This commit is contained in:
Bjoern Mueller
2020-01-22 13:49:13 +01:00
committed by Johannes Schindelin
parent ee0d6657ff
commit 917095c3a5
1 changed files with 7 additions and 2 deletions
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9
compat/mingw.c
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@@ -1087,8 +1087,13 @@ char *mingw_getcwd(char *pointer, int len)
return NULL;
ret = GetFinalPathNameByHandleW(hnd, wpointer, ARRAY_SIZE(wpointer), 0);
CloseHandle(hnd);
if (!ret || ret >= ARRAY_SIZE(wpointer))
return NULL;
if (!ret || ret >= ARRAY_SIZE(wpointer)) {
ret = GetLongPathNameW(cwd, wpointer, ARRAY_SIZE(wpointer));
if (!ret || ret >= ARRAY_SIZE(wpointer)) {
errno = ret ? ENAMETOOLONG : err_win_to_posix(GetLastError());
return NULL;
}
}
if (xwcstoutf(pointer, normalize_ntpath(wpointer), len) < 0)
return NULL;
return pointer;