contrib/completion: add smerge to the mergetool completion candidates

diff --git a/run-command.c b/run-command.c
index c11ff8067481f70c444198bcc7477ef744d99fd3..3449db319b95d17133abcdb39048730a4c922515 100644 (file)
--- a/run-command.c
+++ b/run-command.c
@@ -219,9 +219,29 @@ static int exists_in_PATH(const char *file)
 
 int sane_execvp(const char *file, char * const argv[])
 {
+#ifndef GIT_WINDOWS_NATIVE
+       /*
+        * execvp() doesn't return, so we all we can do is tell trace2
+        * what we are about to do and let it leave a hint in the log
+        * (unless of course the execvp() fails).
+        *
+        * we skip this for Windows because the compat layer already
+        * has to emulate the execvp() call anyway.
+        */
+       int exec_id = trace2_exec(file, (const char **)argv);
+#endif
+
        if (!execvp(file, argv))
                return 0; /* cannot happen ;-) */
 
+#ifndef GIT_WINDOWS_NATIVE
+       {
+               int ec = errno;
+               trace2_exec_result(exec_id, ec);
+               errno = ec;
+       }
+#endif
+
        /*
         * When a command can't be found because one of the directories
         * listed in $PATH is unsearchable, execvp reports EACCES, but
@@ -712,6 +732,7 @@ int start_command(struct child_process *cmd)
                cmd->err = fderr[0];
        }
 
+       trace2_child_start(cmd);
        trace_run_command(cmd);
 
        fflush(NULL);
@@ -728,6 +749,8 @@ int start_command(struct child_process *cmd)
        if (prepare_cmd(&argv, cmd) < 0) {
                failed_errno = errno;
                cmd->pid = -1;
+               if (!cmd->silent_exec_failure)
+                       error_errno("cannot run %s", cmd->argv[0]);
                goto end_of_spawn;
        }
 
@@ -924,6 +947,8 @@ int start_command(struct child_process *cmd)
 #endif
 
        if (cmd->pid < 0) {
+               trace2_child_exit(cmd, -1);
+
                if (need_in)
                        close_pair(fdin);
                else if (cmd->in)
@@ -962,13 +987,16 @@ int start_command(struct child_process *cmd)
 int finish_command(struct child_process *cmd)
 {
        int ret = wait_or_whine(cmd->pid, cmd->argv[0], 0);
+       trace2_child_exit(cmd, ret);
        child_process_clear(cmd);
        return ret;
 }
 
 int finish_command_in_signal(struct child_process *cmd)
 {
-       return wait_or_whine(cmd->pid, cmd->argv[0], 1);
+       int ret = wait_or_whine(cmd->pid, cmd->argv[0], 1);
+       trace2_child_exit(cmd, ret);
+       return ret;
 }
 
 
@@ -990,7 +1018,18 @@ int run_command_v_opt(const char **argv, int opt)
        return run_command_v_opt_cd_env(argv, opt, NULL, NULL);
 }
 
+int run_command_v_opt_tr2(const char **argv, int opt, const char *tr2_class)
+{
+       return run_command_v_opt_cd_env_tr2(argv, opt, NULL, NULL, tr2_class);
+}
+
 int run_command_v_opt_cd_env(const char **argv, int opt, const char *dir, const char *const *env)
+{
+       return run_command_v_opt_cd_env_tr2(argv, opt, dir, env, NULL);
+}
+
+int run_command_v_opt_cd_env_tr2(const char **argv, int opt, const char *dir,
+                                const char *const *env, const char *tr2_class)
 {
        struct child_process cmd = CHILD_PROCESS_INIT;
        cmd.argv = argv;
@@ -1002,6 +1041,7 @@ int run_command_v_opt_cd_env(const char **argv, int opt, const char *dir, const
        cmd.clean_on_exit = opt & RUN_CLEAN_ON_EXIT ? 1 : 0;
        cmd.dir = dir;
        cmd.env = env;
+       cmd.trace2_child_class = tr2_class;
        return run_command(&cmd);
 }
 
@@ -1317,6 +1357,7 @@ int run_hook_ve(const char *const *env, const char *name, va_list args)
        hook.env = env;
        hook.no_stdin = 1;
        hook.stdout_to_stderr = 1;
+       hook.trace2_hook_name = name;
 
        return run_command(&hook);
 }
@@ -1805,3 +1846,21 @@ int run_processes_parallel(int n,
        pp_cleanup(&pp);
        return 0;
 }
+
+int run_processes_parallel_tr2(int n, get_next_task_fn get_next_task,
+                              start_failure_fn start_failure,
+                              task_finished_fn task_finished, void *pp_cb,
+                              const char *tr2_category, const char *tr2_label)
+{
+       int result;
+
+       trace2_region_enter_printf(tr2_category, tr2_label, NULL, "max:%d",
+                                  ((n < 1) ? online_cpus() : n));
+
+       result = run_processes_parallel(n, get_next_task, start_failure,
+                                       task_finished, pp_cb);
+
+       trace2_region_leave(tr2_category, tr2_label, NULL);
+
+       return result;
+}