Expand command formats in %if and move the config file loading later (to

when the first client has identified) so all the client formats are
available, fixes problems reported by Thomas Sattler.

cfg.c

@@ -91,14 +91,14 @@ start_cfg(void)
 	}
 
 	if (cfg_file == NULL)
-		load_cfg(TMUX_CONF, NULL, NULL, CMD_PARSE_QUIET, NULL);
+		load_cfg(TMUX_CONF, c, NULL, CMD_PARSE_QUIET, NULL);
 
 	if (cfg_file == NULL && (home = find_home()) != NULL) {
 		xasprintf(&cfg_file, "%s/.tmux.conf", home);
 		flags = CMD_PARSE_QUIET;
 	}
 	if (cfg_file != NULL)
-		load_cfg(cfg_file, NULL, NULL, flags, NULL);
+		load_cfg(cfg_file, c, NULL, flags, NULL);
 
 	cmdq_append(NULL, cmdq_get_callback(cfg_done, NULL));
 }
@@ -128,6 +128,7 @@ load_cfg(const char *path, struct client *c, struct cmdq_item *item, int flags,
 	pi.file = path;
 	pi.line = 1;
 	pi.item = item;
+	pi.c = c;
 
 	pr = cmd_parse_from_file(f, &pi);
 	fclose(f);
@@ -147,7 +148,7 @@ load_cfg(const char *path, struct client *c, struct cmdq_item *item, int flags,
 	if (item != NULL)
 		cmdq_insert_after(item, new_item0);
 	else
-		cmdq_append(c, new_item0);
+		cmdq_append(NULL, new_item0);
 	cmd_list_free(pr->cmdlist);
 
 	if (new_item != NULL)

format.c

@@ -2006,10 +2006,10 @@ void
 format_defaults(struct format_tree *ft, struct client *c, struct session *s,
     struct winlink *wl, struct window_pane *wp)
 {
-	if (c != NULL)
+	if (c != NULL && c->name != NULL)
 		log_debug("%s: c=%s", __func__, c->name);
 	else
-		log_debug("%s: s=none", __func__);
+		log_debug("%s: c=none", __func__);
 	if (s != NULL)
 		log_debug("%s: s=$%u", __func__, s->id);
 	else

server-client.c

@@ -1934,26 +1934,29 @@ server_client_dispatch_identify(struct client *c, struct imsg *imsg)
 
 		close(c->fd);
 		c->fd = -1;
-
-		return;
+	} else if (c->fd != -1) {
+		if (tty_init(&c->tty, c, c->fd, c->term) != 0) {
+			close(c->fd);
+			c->fd = -1;
+		} else {
+			if (c->flags & CLIENT_UTF8)
+				c->tty.flags |= TTY_UTF8;
+			if (c->flags & CLIENT_256COLOURS)
+				c->tty.term_flags |= TERM_256COLOURS;
+			tty_resize(&c->tty);
+			c->flags |= CLIENT_TERMINAL;
+		}
 	}
 
-	if (c->fd == -1)
-		return;
-	if (tty_init(&c->tty, c, c->fd, c->term) != 0) {
-		close(c->fd);
-		c->fd = -1;
-		return;
-	}
-	if (c->flags & CLIENT_UTF8)
-		c->tty.flags |= TTY_UTF8;
-	if (c->flags & CLIENT_256COLOURS)
-		c->tty.term_flags |= TERM_256COLOURS;
-
-	tty_resize(&c->tty);
-
-	if (!(c->flags & CLIENT_CONTROL))
-		c->flags |= CLIENT_TERMINAL;
+	/*
+	 * If this is the first client that has finished identifying, load
+	 * configuration files.
+	 */
+	if ((~c->flags & CLIENT_EXIT) &&
+	    !cfg_finished &&
+	    c == TAILQ_FIRST(&clients) &&
+	    TAILQ_NEXT(c, entry) == NULL)
+		start_cfg();
 }
 
 /* Handle shell message. */

server.c

@@ -208,8 +208,7 @@ server_start(struct tmuxproc *client, struct event_base *base, int lockfd,
 		cmdq_append(c, cmdq_get_error(cause));
 		free(cause);
 		c->flags |= CLIENT_EXIT;
-	} else
-		start_cfg();
+	}
 
 	server_add_accept(0);
 	proc_loop(server_proc, server_loop);