Hi

Did you already tell me what tmux version you are using? If so, I've
forgotten.

On Tue, Dec 14, 2010 at 04:47:25PM -0500, Mark T. Kennedy wrote:
> 1) remove your .tmux.conf file (to simplify things)
> 2) create a file with just the word "new" in it called cmds
> 3) start tmux with the command:
> 
>       tmux start-server \; source cmds
> 
> 4) do 'tmux attach' (question: why does it detach in the first place?)

The way tmux works is that every command has an internal return value:
this is a 0 for success, -1 for error and 1 for client-now-attached
(yes, they should be an enum but right now they aren't - diffs welcome).

If 0 or -1 is returned, the "command client" is told to exit; it is only
told to stick around and transition into the ready state if 1 is
returned.

The reason the client exists is because source-file is not able to
return 1. It calls load_cfg which does not collect the return values
from the commands, only their error messages.

This diff fixes that, the only caveat being that now source-file will
never return failure even if some commands fail - personally I think
this is fine.

More to follow on your other issues.


Index: cfg.c
===================================================================
RCS file: /cvs/src/usr.bin/tmux/cfg.c,v
retrieving revision 1.11
diff -u -p -r1.11 cfg.c
--- cfg.c       25 May 2010 19:47:30 -0000      1.11
+++ cfg.c       21 Dec 2010 21:55:48 -0000
@@ -80,6 +80,7 @@ load_cfg(const char *path, struct cmd_ct
        size_t           len;
        struct cmd_list *cmdlist;
        struct cmd_ctx   ctx;
+       int              retval;
 
        if ((f = fopen(path, "rb")) == NULL) {
                cfg_add_cause(causes, "%s: %s", path, strerror(errno));
@@ -88,6 +89,7 @@ load_cfg(const char *path, struct cmd_ct
        n = 0;
 
        line = NULL;
+       retval = 0;
        while ((buf = fgetln(f, &len))) {
                if (buf[len - 1] == '\n')
                        buf[len - 1] = '\0';
@@ -125,19 +127,17 @@ load_cfg(const char *path, struct cmd_ct
                ctx.info = cfg_print;
 
                cfg_cause = NULL;
-               cmd_list_exec(cmdlist, &ctx);
+               if (cmd_list_exec(cmdlist, &ctx) == 1)
+                       retval = 1;
                cmd_list_free(cmdlist);
                if (cfg_cause != NULL) {
                        cfg_add_cause(causes, "%s: %d: %s", path, n, cfg_cause);
                        xfree(cfg_cause);
-                       continue;
                }
        }
        if (line != NULL)
                xfree(line);
        fclose(f);
 
-       if (ARRAY_LENGTH(causes) != 0)
-               return (-1);
-       return (0);
+       return (retval);
 }
Index: cmd-source-file.c
===================================================================
RCS file: /cvs/src/usr.bin/tmux/cmd-source-file.c,v
retrieving revision 1.9
diff -u -p -r1.9 cmd-source-file.c
--- cmd-source-file.c   6 Feb 2010 23:22:27 -0000       1.9
+++ cmd-source-file.c   21 Dec 2010 21:55:48 -0000
@@ -91,19 +91,35 @@ cmd_source_file_exec(struct cmd *self, s
        struct cmd_source_file_data     *data = self->data;
        struct causelist                 causes;
        char                            *cause;
+       struct window_pane              *wp;
+       int                              retval;
        u_int                            i;
 
        ARRAY_INIT(&causes);
-       if (load_cfg(data->path, ctx, &causes) != 0) {
+
+       retval = load_cfg(data->path, ctx, &causes);
+       if (ARRAY_EMPTY(&causes))
+               return (retval);
+
+       if (retval == 1 && !ARRAY_EMPTY(&sessions) && ctx->cmdclient != NULL) {
+               wp = ARRAY_FIRST(&sessions)->curw->window->active;
+               window_pane_set_mode(wp, &window_copy_mode);
+               window_copy_init_for_output(wp);
+               for (i = 0; i < ARRAY_LENGTH(&causes); i++) {
+                       cause = ARRAY_ITEM(&causes, i);
+                       window_copy_add(wp, "%s", cause);
+                       xfree(cause);
+               }
+       } else {
                for (i = 0; i < ARRAY_LENGTH(&causes); i++) {
                        cause = ARRAY_ITEM(&causes, i);
                        ctx->print(ctx, "%s", cause);
                        xfree(cause);
                }
-               ARRAY_FREE(&causes);
        }
+       ARRAY_FREE(&causes);
 
-       return (0);
+       return (retval);
 }
 
 void

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