Alter how tmux handles the working directory to internally use file descriptors

rather than strings.

- Each session still has a current working directory.

- New sessions still get their working directory from the client that created
  them or its attached session if any.

- New windows are created by default in the session working directory.

- The -c flag to new, neww, splitw allows the working directory to be
  overridden.

- The -c flag to attach let's the session working directory be changed.

- The default-path option has been removed.

To get the equivalent to default-path '.', do:

        bind c neww -c $PWD

To get the equivalent of default-path '', do:

        bind c neww -c '#{pane_current_path}'

The equivalent of default-path '~' is left as an exercise for the reader.

This also changes the client identify protocol to be a set of messages rather
than one as well as some other changes that should make it easier to make
backwards-compatible protocol changes in future.

1 files changed, 0 insertions, 3 deletions

diff --git a/format.c b/format.c
index ba4b95b2..a7f1fdee 100644
--- a/format.c
+++ b/format.c
@@ -403,7 +403,6 @@ format_client(struct format_tree *ft, struct client *c)
 	time_t		 t;
 	struct session	*s;
 
-	format_add(ft, "client_cwd", "%s", c->cwd);
 	format_add(ft, "client_height", "%u", c->tty.sy);
 	format_add(ft, "client_width", "%u", c->tty.sx);
 	if (c->tty.path != NULL)
@@ -552,8 +551,6 @@ format_window_pane(struct format_tree *ft, struct window_pane *wp)
 	format_add(ft, "pane_pid", "%ld", (long) wp->pid);
 	if (wp->cmd != NULL)
 		format_add(ft, "pane_start_command", "%s", wp->cmd);
-	if (wp->cwd != NULL)
-		format_add(ft, "pane_start_path", "%s", wp->cwd);
 	if ((cwd = osdep_get_cwd(wp->fd)) != NULL)
 		format_add(ft, "pane_current_path", "%s", cwd);
 	if ((cmd = format_get_command(wp)) != NULL) {