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git/test-run-command.c
Johannes Sixt 2b541bf8be start_command: detect execvp failures early
Previously, failures during execvp could be detected only by
finish_command. However, in some situations it is beneficial for the
parent process to know earlier that the child process will not run.

The idea to use a pipe to signal failures to the parent process and
the test case were lifted from patches by Ilari Liusvaara.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-10 10:15:03 -08:00

35 lines
774 B
C

/*
* test-run-command.c: test run command API.
*
* (C) 2009 Ilari Liusvaara <ilari.liusvaara@elisanet.fi>
*
* This code is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include "git-compat-util.h"
#include "run-command.h"
#include <string.h>
#include <errno.h>
int main(int argc, char **argv)
{
struct child_process proc;
memset(&proc, 0, sizeof(proc));
if (argc < 3)
return 1;
proc.argv = (const char **)argv+2;
if (!strcmp(argv[1], "start-command-ENOENT")) {
if (start_command(&proc) < 0 && errno == ENOENT)
return 0;
fprintf(stderr, "FAIL %s\n", argv[1]);
return 1;
}
fprintf(stderr, "check usage\n");
return 1;
}