return -1;
}
-static const char **prepare_shell_cmd(const char **argv)
+static const char **prepare_shell_cmd(struct argv_array *out, const char **argv)
{
- int argc, nargc = 0;
- const char **nargv;
-
- for (argc = 0; argv[argc]; argc++)
- ; /* just counting */
- /* +1 for NULL, +3 for "sh -c" plus extra $0 */
- nargv = xmalloc(sizeof(*nargv) * (argc + 1 + 3));
-
- if (argc < 1)
+ if (!argv[0])
die("BUG: shell command is empty");
if (strcspn(argv[0], "|&;<>()$`\\\"' \t\n*?[#~=%") != strlen(argv[0])) {
#ifndef GIT_WINDOWS_NATIVE
- nargv[nargc++] = SHELL_PATH;
+ argv_array_push(out, SHELL_PATH);
#else
- nargv[nargc++] = "sh";
+ argv_array_push(out, "sh");
#endif
- nargv[nargc++] = "-c";
-
- if (argc < 2)
- nargv[nargc++] = argv[0];
- else {
- struct strbuf arg0 = STRBUF_INIT;
- strbuf_addf(&arg0, "%s \"$@\"", argv[0]);
- nargv[nargc++] = strbuf_detach(&arg0, NULL);
- }
- }
+ argv_array_push(out, "-c");
- for (argc = 0; argv[argc]; argc++)
- nargv[nargc++] = argv[argc];
- nargv[nargc] = NULL;
+ /*
+ * If we have no extra arguments, we do not even need to
+ * bother with the "$@" magic.
+ */
+ if (!argv[1])
+ argv_array_push(out, argv[0]);
+ else
+ argv_array_pushf(out, "%s \"$@\"", argv[0]);
+ }
- return nargv;
+ argv_array_pushv(out, argv);
+ return out->argv;
}
#ifndef GIT_WINDOWS_NATIVE
static int execv_shell_cmd(const char **argv)
{
- const char **nargv = prepare_shell_cmd(argv);
- trace_argv_printf(nargv, "trace: exec:");
- sane_execvp(nargv[0], (char **)nargv);
- free(nargv);
+ struct argv_array nargv = ARGV_ARRAY_INIT;
+ prepare_shell_cmd(&nargv, argv);
+ trace_argv_printf(nargv.argv, "trace: exec:");
+ sane_execvp(nargv.argv[0], (char **)nargv.argv);
+ argv_array_clear(&nargv);
return -1;
}
#endif
if (waiting < 0) {
failed_errno = errno;
- error("waitpid for %s failed: %s", argv0, strerror(errno));
+ error_errno("waitpid for %s failed", argv0);
} else if (waiting != pid) {
error("waitpid is confused (%s)", argv0);
} else if (WIFSIGNALED(status)) {
code = WTERMSIG(status);
- if (code != SIGINT && code != SIGQUIT)
+ if (code != SIGINT && code != SIGQUIT && code != SIGPIPE)
error("%s died of signal %d", argv0, code);
/*
* This return value is chosen so that code & 0xff
}
}
if (cmd->pid < 0)
- error("cannot fork() for %s: %s", cmd->argv[0],
- strerror(errno));
+ error_errno("cannot fork() for %s", cmd->argv[0]);
else if (cmd->clean_on_exit)
mark_child_for_cleanup(cmd->pid);
{
int fhin = 0, fhout = 1, fherr = 2;
const char **sargv = cmd->argv;
+ struct argv_array nargv = ARGV_ARRAY_INIT;
if (cmd->no_stdin)
fhin = open("/dev/null", O_RDWR);
fhout = dup(cmd->out);
if (cmd->git_cmd)
- cmd->argv = prepare_git_cmd(cmd->argv);
+ cmd->argv = prepare_git_cmd(&nargv, cmd->argv);
else if (cmd->use_shell)
- cmd->argv = prepare_shell_cmd(cmd->argv);
+ cmd->argv = prepare_shell_cmd(&nargv, cmd->argv);
cmd->pid = mingw_spawnvpe(cmd->argv[0], cmd->argv, (char**) cmd->env,
cmd->dir, fhin, fhout, fherr);
failed_errno = errno;
if (cmd->pid < 0 && (!cmd->silent_exec_failure || errno != ENOENT))
- error("cannot spawn %s: %s", cmd->argv[0], strerror(errno));
+ error_errno("cannot spawn %s", cmd->argv[0]);
if (cmd->clean_on_exit && cmd->pid >= 0)
mark_child_for_cleanup(cmd->pid);
- if (cmd->git_cmd)
- free(cmd->argv);
-
+ argv_array_clear(&nargv);
cmd->argv = sargv;
if (fhin != 0)
close(fhin);
struct async *async = data;
intptr_t ret;
+ if (async->isolate_sigpipe) {
+ sigset_t mask;
+ sigemptyset(&mask);
+ sigaddset(&mask, SIGPIPE);
+ if (pthread_sigmask(SIG_BLOCK, &mask, NULL) < 0) {
+ ret = error("unable to block SIGPIPE in async thread");
+ return (void *)ret;
+ }
+ }
+
pthread_setspecific(async_key, async);
ret = async->proc(async->proc_in, async->proc_out, async->data);
return (void *)ret;
return !pthread_equal(main_thread, pthread_self());
}
+void NORETURN async_exit(int code)
+{
+ pthread_exit((void *)(intptr_t)code);
+}
+
#else
static struct {
return process_is_async;
}
+void NORETURN async_exit(int code)
+{
+ exit(code);
+}
+
#endif
int start_async(struct async *async)
if (pipe(fdin) < 0) {
if (async->out > 0)
close(async->out);
- return error("cannot create pipe: %s", strerror(errno));
+ return error_errno("cannot create pipe");
}
async->in = fdin[1];
}
close_pair(fdin);
else if (async->in)
close(async->in);
- return error("cannot create pipe: %s", strerror(errno));
+ return error_errno("cannot create pipe");
}
async->out = fdout[0];
}
async->pid = fork();
if (async->pid < 0) {
- error("fork (async) failed: %s", strerror(errno));
+ error_errno("fork (async) failed");
goto error;
}
if (!async->pid) {
{
int err = pthread_create(&async->tid, NULL, run_thread, async);
if (err) {
- error("cannot create thread: %s", strerror(err));
+ error_errno("cannot create thread");
goto error;
}
}
static struct strbuf path = STRBUF_INIT;
strbuf_reset(&path);
- strbuf_git_path(&path, "hooks/%s", name);
+ if (git_hooks_path)
+ strbuf_addf(&path, "%s/%s", git_hooks_path, name);
+ else
+ strbuf_git_path(&path, "hooks/%s", name);
if (access(path.buf, X_OK) < 0)
return NULL;
return path.buf;