Reuse inactive session

[alexluigit]

After cc0c04f, users should be able to reuse a hidden session (if there is any) by dired-jump or dirvish-dwim when dirvish-keep-alive-on-quit is set to t. It allows us to keep only one dirvish buffer in the buffer list when there are no visible dirvish sessions (exception: dirvish-side can still hold one or more sessions if being used).

The way that dirvish manages its buffers is documented here.

In short,

1. Dirvish reuses its session-local buffers on directory navigation rather than kill them on the fly like dired-kill-when-opening-new-dired-buffer does.
2. Dirvish cleans its buffers on session quit (triggered by find-file or quit-window)

Doing so we get best things from both worlds: fully-reused buffers (essential for big/tramp directories) and a clean buffer list.

Feel free to post any thoughts on this or Dirivish's buffer management in general. Thanks.

[aikrahguzar]

Hi @alexluigit
Thanks a lot for this change. It makes it much better fit for how I use Dired. But is it possible to make buffer management by Dirvish more minimal? Ideally I would like it to make Dirvish buffers I create by find-file to stay unless I navigate to one of their sub-directories or kill them. Now dired-jump behaves as expected but using find-file results in one of the already open buffers disappearing.

P.S. Is there a way to disable header line in Dirvish?

[alexluigit]

but using find-file results in one of the already open buffers disappearing

What do you mean by this?
Assume I'm editing /foo/123.txt

1. dired-jump (gives me /foo)
2. quit-window
3. find-file "/bar/" (gives me /bar)
4. did you mean "/foo" get killed here?

I can not reproduce this on emacs -q, and I did not add any session reuse logic to find-file as of this update.

Is there a way to disable header line in Dirvish?

(setq dirvish-header-line-position 'disable)

This only work for fullscreen session for now. Maybe I'll let this option take effect for single window session as well.

[aikrahguzar]

What do you mean by this? Assume I'm editing /foo/123.txt

1. dired-jump (gives me /foo)

2. quit-window

3. find-file "/bar/" (gives me /bar)

4. did you mean "/foo" get killed here?

Essentially this but it is somewhat intermittent. I will try to get a reproducible example and report back.

This only work for fullscreen session for now. Maybe I'll let this option take effect for single window session as well.

Please do, I think that will be good. Or maybe just allow allow a special symbol like always to make it take effect for single windows if you think different behavior for fullscreen session is an important use case.