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Allow panes to be empty (no command), output can be piped to them with

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split-window or display-message -I.
This commit is contained in:
nicm
2019-05-03 20:44:24 +00:00
parent e8e4f4ec3e
commit 9f75635596
10 changed files with 144 additions and 34 deletions
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48
spawn.c
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@@ -332,6 +332,14 @@ spawn_pane(struct spawn_context *sc, char **cause)
cmd_log_argv(new_wp->argc, new_wp->argv, __func__);
environ_log(child, "%s: environment ", __func__);
/* If the command is empty, don't fork a child process. */
if (sc->flags & SPAWN_EMPTY) {
new_wp->flags |= PANE_EMPTY;
new_wp->base.mode &= ~MODE_CURSOR;
new_wp->base.mode |= MODE_CRLF;
goto complete;
}
/* Initialize the window size. */
memset(&ws, 0, sizeof ws);
ws.ws_col = screen_size_x(&new_wp->base);
@@ -355,25 +363,8 @@ spawn_pane(struct spawn_context *sc, char **cause)
}
/* In the parent process, everything is done now. */
if (new_wp->pid != 0) {
new_wp->pipe_off = 0;
new_wp->flags &= ~PANE_EXITED;
sigprocmask(SIG_SETMASK, &oldset, NULL);
window_pane_set_event(new_wp);
if (sc->flags & SPAWN_RESPAWN)
return (new_wp);
if ((~sc->flags & SPAWN_DETACHED) || w->active == NULL) {
if (sc->flags & SPAWN_NONOTIFY)
window_set_active_pane(w, new_wp, 0);
else
window_set_active_pane(w, new_wp, 1);
}
if (~sc->flags & SPAWN_NONOTIFY)
notify_window("window-layout-changed", w);
return (new_wp);
}
if (new_wp->pid != 0)
goto complete;
/*
* Child process. Change to the working directory or home if that
@@ -433,4 +424,23 @@ spawn_pane(struct spawn_context *sc, char **cause)
xasprintf(&argv0, "-%s", new_wp->shell);
execl(new_wp->shell, argv0, (char *)NULL);
_exit(1);
complete:
new_wp->pipe_off = 0;
new_wp->flags &= ~PANE_EXITED;
sigprocmask(SIG_SETMASK, &oldset, NULL);
window_pane_set_event(new_wp);
if (sc->flags & SPAWN_RESPAWN)
return (new_wp);
if ((~sc->flags & SPAWN_DETACHED) || w->active == NULL) {
if (sc->flags & SPAWN_NONOTIFY)
window_set_active_pane(w, new_wp, 0);
else
window_set_active_pane(w, new_wp, 1);
}
if (~sc->flags & SPAWN_NONOTIFY)
notify_window("window-layout-changed", w);
return (new_wp);
}