Double nerdtree when passing directory as argument

[nybblr]

Love the plugin -- makes my NERD life that much better =)

Whenever I call:
$ mvim /path/to/dir

Two NERDTree windows are opened: one on the left that is at my home directory, and a big one on the right that is cd'ed to the directory I passed in. It seems the left nerdtree also sets the PWD last, so if I focus from the left tree to the right tree, the directory is suddenly my home directory instead of the directory I pass in.

The left NERDtree is obviously generated by this plugin: if I open a new tab, it mirrors that one. The one on the right (takes up most of the screen) is what NERDTree auto loads, probably because it tries to take place of netrw, the default vim dir explorer.

Obviously this behavior is irritating...I like the behavior I get if I just run mvim with no args: then it opens this plugin's nerdtree window to the terminal's pwd, and opens a blank buffer on the left. What needs to be changed to fix the behavior to match this when given a directory? I'll gladly help out, but I'm somewhat new to vim plugin architecturing so a push in the right direction would be great!

Just FYI this only happens with directories: if I give a file, it uses the directory as the PWD and root of the nerdtree (which your plugin opens without competition from the netrw hook) as it should. It just misbehaves when I use a directory as the argument.

Thanks!
~ Jonathan Martin

[jistr]

I've solved this issue already, then I had to move to a different loading method (moved the script from plugin dir to nerdtree_plugin dir to fix some issue) and then this got bad again I think. For me, the loading process here is like black magic :) Netrw + default NERDTree behavior + this plugin's behavior fight against each other. Nowadays I simply cd into the directory and run gvim there :D

If you want to dive into this by any chance, be aware that this...

The left NERDtree is obviously generated by this plugin: if I open a new tab, it mirrors that one.

... might not necessarily be a correct statement. NERDTreeMirror command is used for mirroring. It is present in default NERDTree distro and I'm not sure what is the rule for picking which buffer will be mirrored.

[nybblr]

Hmm, black magic =P I'm not so good in that field! =)

I've been doing cd myself, it just gets irritating when I really don't want to open another terminal, cd to my last directory, and then cd to the subdirectory I was interested in. I run into this often when I'm working with my dotfiles, and want to open mvim to a plugin's directory. Maybe there's a way to intercept the vim args and run cd, then open vim normally? A little hacky, but then you could definitely get consistent behavior.

Just some thoughts; what loading method worked at first?

~ Jonathan

[jistr]

I won't recall from memory, but apparently it was working with v1.1.2:
#6 (comment)

Here are the tagged versions:
https://github.com/jistr/vim-nerdtree-tabs/tags

[jistr]

By the time of v1.1.2, nerdtree-tabs was loaded from plugin directory, so it was loaded before nerdtree itself, but this caused some issues. So nerdtree-tabs had to be moved to nerdtree_plugin directory later, which loads after loading nerdtree. So the mechanism for initial nerdtree opening from v1.1.2 might be impossible to replicate to current master, but I'm not absolutely sure about that.

[jistr]

Ugh, got autoclosed. Reopening because the two nerdtrees still do appear. But now they both point into a correct directory at least :)

[estk]

This is a real bummer +1 for a fix.

[bendycode]

Any sort of workaround? Pulling version v1.1.2 did not seem to help.

[ELLIOTTCABLE]

👍!

[tomoakley]

+1 for this error, it's really annoying. Love the plugin though, makes using vim a lot easier! I was thinking if there was a way to stop NERDTree opening by default, and only have NERDTreeTabs open by default, would that be a workaround for now?

[tnguyen14]

I am running into a similar problem as described here, when I first install this plugin today.

In my ~/.vimrc, I have this line

g:nerdtree_tabs_open_on_console_startup = 1

When opening a new vim session with the directory, i.e. vim ., I see the NERDTree smaller window on the left, as well as the big one on the right.

Now, when I open a file from the window on the left, it then opens as a smaller window at the bottom half of the large window. See the screenshot here:

This is sort of annoying as I then have to go up and close out that window explicitly first. Is there any NERDTreeTabs or NERDTree option to disable this behavior?

[mikew]

I'm not sure if this will help anyone in this thread, but this is what I'm doing to handle duplicate NERDTree / netrw windows on startup:

let g:nerdtree_tabs_open_on_gui_startup = 0
let g:nerdtree_tabs_open_on_console_startup = 0

autocmd AuNERDTreeCmd VimEnter * call s:NERDTreeTabsOpen(expand("<amatch>"))

" If vim is started with a file, simply show that file
" If vim is started with nothing or a directory,
" open NERDTree and close any netrw buffers
function s:NERDTreeTabsOpen(directory)
  let l:main_bufnr = bufnr('%')
  if empty(a:directory) || isdirectory(a:directory)
    NERDTreeTabsOpen
    exe bufwinnr(l:main_bufnr) . "wincmd w"
    bd
  endif
endfunction