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usage.c API users: use die_message() for "fatal :" + exit 128

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Change code that printed its own "fatal: " message and exited with a
status code of 128 to use the die_message() function added in a
preceding commit.

This change also demonstrates why the return value of
die_message_routine() needed to be that of "report_fn". We have
callers such as the run-command.c::child_err_spew() which would like
to replace its error routine with the return value of
"get_die_message_routine()".

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Ævar Arnfjörð Bjarmason
2021-12-07 19:26:30 +01:00
committed by Junio C Hamano
parent 18568ee8f8
commit e081a7c3b7
4 changed files with 15 additions and 18 deletions
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16
run-command.c
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@ -340,15 +340,6 @@ static void child_close_pair(int fd[2])
child_close(fd[1]);
}
/*
* parent will make it look like the child spewed a fatal error and died
* this is needed to prevent changes to t0061.
*/
static void fake_fatal(const char *err, va_list params)
{
vreportf("fatal: ", err, params);
}
static void child_error_fn(const char *err, va_list params)
{
const char msg[] = "error() should not be called in child\n";
@ -372,9 +363,10 @@ static void NORETURN child_die_fn(const char *err, va_list params)
static void child_err_spew(struct child_process *cmd, struct child_err *cerr)
{
static void (*old_errfn)(const char *err, va_list params);
report_fn die_message_routine = get_die_message_routine();
old_errfn = get_error_routine();
set_error_routine(fake_fatal);
set_error_routine(die_message_routine);
errno = cerr->syserr;
switch (cerr->err) {
@ -1082,7 +1074,9 @@ static void *run_thread(void *data)
static NORETURN void die_async(const char *err, va_list params)
{
vreportf("fatal: ", err, params);
report_fn die_message_fn = get_die_message_routine();
die_message_fn(err, params);
if (in_async()) {
struct async *async = pthread_getspecific(async_key);