static void prepare_cmd(struct argv_array *out, const struct child_process *cmd)
{
if (!cmd->argv[0])
die("BUG: command is empty");
/*
* Add SHELL_PATH so in the event exec fails with ENOEXEC we can
* attempt to interpret the command with 'sh'.
*/
argv_array_push(out, SHELL_PATH);
if (cmd->git_cmd) {
argv_array_push(out, "git");
argv_array_pushv(out, cmd->argv);
} else if (cmd->use_shell) {
prepare_shell_cmd(out, cmd->argv);
} else {
argv_array_pushv(out, cmd->argv);
}
/*
* If there are no '/' characters in the command then perform a path
* lookup and use the resolved path as the command to exec. If there
* are no '/' characters or if the command wasn't found in the path,
* have exec attempt to invoke the command directly.
*/
if (!strchr(out->argv[1], '/')) {
char *program = locate_in_PATH(out->argv[1]);
if (program) {
free((char *)out->argv[1]);
out->argv[1] = program;
}
}
}
static int exists_in_PATH(const char *file)
{
char *r = locate_in_PATH(file);
free(r);
return r != NULL;
}
