-
Since a9b8a09c (mingw: replace isatty() hack, 2016-12-22), we handle isatty() by special-casing the stdin/stdout/stderr file descriptors, caching the return value. However, we missed the case where dup2() overrides the respective file descriptor. That poses a problem e.g. where the `show` builtin asks for a pager very early, the `setup_pager()` function sets the pager depending on the return value of `isatty()` and then redirects stdout. Subsequently, `cmd_log_init_finish()` calls `setup_pager()` *again*. What should happen now is that `isatty()` reports that stdout is *not* a TTY and consequently stdout should be left alone. Let's override dup2() to handle this appropriately. This fixes https://github.com/git-for-windows/git/issues/1077 Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
ff8978d5