From d6c5b475a1a69510401b2879792d424b594a3e8d Mon Sep 17 00:00:00 2001
From: Agatha Lovelace <agatha@technogothic.net>
Date: Thu, 23 Jun 2022 10:07:54 +0200
Subject: [PATCH] Fern

---
 .vimrc | 55 +++++++++++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 47 insertions(+), 8 deletions(-)

diff --git a/.vimrc b/.vimrc
index aaebd3f..08e4d5b 100644
--- a/.vimrc
+++ b/.vimrc
@@ -5,6 +5,7 @@
 "   || | || || || ||  ||   ||
 "   \\/  \\ \\ \\ \\  \\,  \\,/
 
+
 " Install VimPlug
 let data_dir = has('nvim') ? stdpath('data') . '/site' : '~/.vim'
 if empty(glob(data_dir . '/autoload/plug.vim'))
@@ -22,27 +23,31 @@ Plug 'dhruvasagar/vim-table-mode'
 Plug 'fadein/vim-FIGlet'
 Plug 'gkeep/iceberg-dark'
 Plug 'itchyny/lightline.vim'
-Plug 'jistr/vim-nerdtree-tabs'
 Plug 'karolbelina/uxntal.vim', {'for': 'uxntal'}
+Plug 'lambdalisue/fern-git-status.vim'
+Plug 'lambdalisue/fern-hijack.vim'
+Plug 'lambdalisue/fern-renderer-nerdfont.vim'
+Plug 'lambdalisue/fern.vim'
 Plug 'lilydjwg/colorizer'
 Plug 'mg979/vim-visual-multi'
 Plug 'owickstrom/vim-colors-paramount'
 Plug 'raimondi/delimitmate'
-Plug 'scrooloose/nerdtree'
 Plug 'tpope/vim-commentary'
 Plug 'vim-scripts/nginx.vim', {'for': 'nginx'}
 Plug 'yuttie/comfortable-motion.vim'
 
+Plug 'lambdalisue/nerdfont.vim'
 Plug 'ryanoasis/vim-devicons'
 
 " don't install these plugins on remote servers
 if has('nvim')
+	Plug 'airblade/vim-gitgutter'
 	Plug 'folke/todo-comments.nvim'
 	Plug 'hrsh7th/cmp-calc'
 	Plug 'j-hui/fidget.nvim'
 	Plug 'jghauser/mkdir.nvim'
 	Plug 'stevearc/dressing.nvim'
-	Plug 'airblade/vim-gitgutter'
+	Plug 'williamboman/nvim-lsp-installer'
     Plug 'antoinemadec/FixCursorHold.nvim'
     Plug 'edluffy/specs.nvim'
     Plug 'folke/lsp-colors.nvim'
@@ -56,14 +61,12 @@ if has('nvim')
     Plug 'hrsh7th/vim-vsnip'
     Plug 'kyazdani42/nvim-web-devicons'
     Plug 'maximbaz/lightline-ale'
-	Plug 'williamboman/nvim-lsp-installer'
     Plug 'neovim/nvim-lspconfig'
     Plug 'nvim-lua/plenary.nvim'
     Plug 'nvim-telescope/telescope.nvim'
     Plug 'nvim-treesitter/nvim-treesitter', {'do': ':TSUpdate'}
     Plug 'tpope/vim-fugitive'
     Plug 'w0rp/ale'
-    Plug 'xuyuanp/nerdtree-git-plugin'
 endif
 
 call plug#end()
@@ -81,14 +84,50 @@ noremap <silent> <ScrollWheelUp>   :call comfortable_motion#flick(-20)<CR>
 let g:VM_maps                       = {}
 let g:VM_maps["I BS"]           = '<c-BS>'
 
-" Nerdtree/git config
-let g:NERDTreeGitStatusConcealBrackets = 1
+" Fern config
+let g:fern#renderer = "nerdfont"
 
+function FindSessionDirectory() abort
+  if len(argv()) > 0
+    return fnamemodify(argv()[0], ':p:h')
+  endif
+  return getcwd()
+endfunction!
+
+function! s:init_fern() abort
+  nmap <buffer><expr>
+  \ <Plug>(fern-my-expand-or-collapse)
+  \ fern#smart#leaf(
+  \   "\<Plug>(fern-action-open)",
+  \   "\<Plug>(fern-action-expand)",
+  \   "\<Plug>(fern-action-collapse)",
+  \ )
+
+  " Define NERDTree like mappings
+  nmap <buffer> t <Plug>(fern-action-open:tabedit)
+  nmap <buffer> T <Plug>(fern-action-open:tabedit)gT
+  nmap <buffer> i <Plug>(fern-action-open:split)
+  nmap <buffer> gi <Plug>(fern-action-open:split)<C-w>p
+  nmap <buffer> s <Plug>(fern-action-open:vsplit)
+  nmap <buffer> gs <Plug>(fern-action-open:vsplit)<C-w>p
+  nmap <buffer> ma <Plug>(fern-action-new-path)
+  nmap <buffer> <CR> <Plug>(fern-my-expand-or-collapse)
+  nmap <buffer> P gg
+endfunction
+
+augroup my-fern-startup
+  autocmd! *
+  autocmd FileType fern call s:init_fern()
+  if has('nvim')
+	autocmd TabNewEntered * ++nested exec 'Fern -reveal=% -drawer -stay ' . FindSessionDirectory()
+  endif
+augroup END
 
 " Aliases
 command Header FIGlet -f Gothic
 cmap W w !sudo tee > /dev/null %
-nnoremap <C-e> :NERDTreeTabsToggle<CR>
+" nnoremap <C-e> :NERDTreeTabsToggle<CR>
+nnoremap <C-e> :exec ':Fern -reveal=% -drawer -toggle -stay ' . FindSessionDirectory()<CR>
 
 " Colorscheme
 set background=dark