The "2>&1" notation in POSIX shells implies that stderr is redirected to
stdout. Let's special-case this value for the environment variable
GIT_REDIRECT_STDERR to allow writing to the same destination as stdout.
The functionality was suggested by Jeff Hostetler.
Signed-off-by: Johannes Schindelin <johannes.schindelin@xxxxxx>
---
compat/mingw.c | 15 +++++++++++++++
t/t0001-init.sh | 8 +++++++-
2 files changed, 22 insertions(+), 1 deletion(-)
diff --git a/compat/mingw.c b/compat/mingw.c
index 6c6c7795a70..2d44d21aca8 100644
--- a/compat/mingw.c
+++ b/compat/mingw.c
@@ -2160,6 +2160,21 @@ static void maybe_redirect_std_handle(const wchar_t *key, DWORD std_id, int fd,
CloseHandle(handle);
return;
}
+ if (std_id == STD_ERROR_HANDLE && !wcscmp(buf, L"2>&1")) {
+ handle = GetStdHandle(STD_OUTPUT_HANDLE);
+ if (handle == INVALID_HANDLE_VALUE) {
+ close(fd);
+ handle = GetStdHandle(std_id);
+ if (handle != INVALID_HANDLE_VALUE)
+ CloseHandle(handle);
+ } else {
+ int new_fd = _open_osfhandle((intptr_t)handle, O_BINARY);
+ SetStdHandle(std_id, handle);
+ dup2(new_fd, fd);
+ /* do *not* close the new_fd: that would close stdout */
+ }
+ return;
+ }
handle = CreateFileW(buf, desired_access, 0, NULL, create_flag,
flags, NULL);
if (handle != INVALID_HANDLE_VALUE) {
diff --git a/t/t0001-init.sh b/t/t0001-init.sh
index 0fd2fc45385..c413bff9cf1 100755
--- a/t/t0001-init.sh
+++ b/t/t0001-init.sh
@@ -456,7 +456,13 @@ test_expect_success 're-init from a linked worktree' '
test_expect_success MINGW 'redirect std handles' '
GIT_REDIRECT_STDOUT=output.txt git rev-parse --git-dir &&
test .git = "$(cat output.txt)" &&
- test -z "$(GIT_REDIRECT_STDOUT=off git rev-parse --git-dir)"
+ test -z "$(GIT_REDIRECT_STDOUT=off git rev-parse --git-dir)" &&
+ test_must_fail env \
+ GIT_REDIRECT_STDOUT=output.txt \
+ GIT_REDIRECT_STDERR="2>&1" \
+ git rev-parse --git-dir --verify refs/invalid &&
+ printf ".git\nfatal: Needed a single revision\n" >expect &&
+ test_cmp expect output.txt
'
test_done
--
2.15.0.windows.1
