From f3ba0c3ab81691dcfb332672c6be34a2c28b58a7 Mon Sep 17 00:00:00 2001
From: langedev <public@daltonlange.com>
Date: Mon, 20 Nov 2023 02:51:44 -0800
Subject: [PATCH] Add nvim support

---
 home.nix                  |  1 +
 programs/nvim/default.nix | 74 +++++++++++++++++++++++++++++++++++++++
 programs/nvim/init.vim    | 67 +++++++++++++++++++++++++++++++++++
 3 files changed, 142 insertions(+)
 create mode 100644 programs/nvim/default.nix
 create mode 100644 programs/nvim/init.vim

diff --git a/home.nix b/home.nix
index d5b7845..8540bab 100644
--- a/home.nix
+++ b/home.nix
@@ -15,6 +15,7 @@
     ./programs/fish
     ./programs/nnn
     ./programs/rofi
+    ./programs/nvim
   ];
 
   home.packages = with pkgs; [
diff --git a/programs/nvim/default.nix b/programs/nvim/default.nix
new file mode 100644
index 0000000..bd19ffd
--- /dev/null
+++ b/programs/nvim/default.nix
@@ -0,0 +1,74 @@
+{ config, pkgs, ... }:
+
+{
+  programs.neovim.enable = true;
+  programs.neovim.extraConfig = ''
+  	${builtins.readFile ./init.vim}
+  '';
+  programs.neovim.plugins = with pkgs.vimPlugins; [
+    { # Personal Wiki
+      plugin = vimwiki;
+      config = ''
+        let g:vimwiki_list = [{'path': '~/dox/wiki', 'links_space_char': '_',
+                     \ 'ext': '.md', 'syntax': 'markdown'}]
+      '';
+    }
+    { # NNN in vim
+      plugin = nnn-vim;
+      config = ''
+        let g:nnn#layout = { 'window': {
+            \ 'width': 0.35,
+            \ 'height': 0.5,
+            \ 'xoffset': 1.0,
+            \ 'highlight': 'Debug' } } " hover window
+        let g:nnn#action = {
+            \ '<c-t>': 'tab split',
+            \ '<c-s>': 'split',
+            \ '<c-v>': 'vsplit' }
+        let g:nnn#command = 'nnn -HoeT v'
+        let g:nnn#replace_netrw = 1
+        '';
+    }
+    { # Fuzzy searches
+      plugin = fzf-vim;
+      config = ''
+        map <C-f> :Files<CR>
+        map <C-a> :Ag<CR>
+      '';
+    }
+    { # Auto completions
+      plugin = coc-nvim;
+      config = ''
+        function! s:check_back_space() abort
+          let col = col('.') - 1
+          return !col || getline('.')[col - 1]  =~# '\s'
+        endfunction
+
+        inoremap <silent><expr> <TAB>
+              \ pumvisible() ? "\<C-n>" :
+              \ <SID>check_back_space() ? "\<TAB>" :
+              \ coc#refresh()
+        inoremap <expr><S-TAB> pumvisible() ? "\<C-p>" : "\<C-h>"
+      '';
+    }
+    vim-commentary # multi-line comments
+    vim-fugitive # Git Plugin
+    vimtex # Latex support
+    tagbar # File tagging
+
+    # === LOOK AND FEEL ===
+    { # Status Bar
+      plugin = vim-airline;
+      config = ''
+        let g:airline#extensions#tagbar#flags = 'fs'
+      '';
+    }
+    { # Rainbow Parenthesis
+      plugin = rainbow;
+      config = ''
+        let g:rainbow_actve = 1
+      '';
+    }
+    vim-polyglot # Syntax Highlighting
+  ];
+}
diff --git a/programs/nvim/init.vim b/programs/nvim/init.vim
new file mode 100644
index 0000000..a40649a
--- /dev/null
+++ b/programs/nvim/init.vim
@@ -0,0 +1,67 @@
+syntax on
+let mapleader =" "
+set encoding=utf-8
+set nocompatible
+filetype plugin on
+set list
+
+set updatetime=300
+
+" Easy Split Navigation
+nnoremap <C-J> <C-W><C-J>
+nnoremap <C-K> <C-W><C-K>
+nnoremap <C-L> <C-W><C-L>
+nnoremap <C-H> <C-W><C-H>
+
+" Indentation
+set tabstop=2 softtabstop=0 shiftwidth=2 smarttab expandtab
+
+" Searching
+set smartcase
+
+" Backups
+set noswapfile
+set nobackup
+set undodir=~/.config/nvim/undodir
+set undofile
+
+" Right column at 80 lines for good coding practice.
+set colorcolumn=80
+""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
+
+" QoL
+set showmatch " Show matching Brackets
+set number relativenumber " Side numbers
+
+" Fuzzy finding by allowing searching into subfolders
+set path+=**
+set wildmenu
+" use :find to find, and * to make it fuzzy.
+" Also make use of :b.
+
+" Delete trailing white space and newlines at end of file on save.
+autocmd BufWritePre * %s/\s\+$//e
+autocmd BufWritePre * %s/\n\+\%$//e
+
+" Easy copy and pasting to external programs
+map <C-y> "+yy
+map <C-p> "+P
+
+autocmd BufRead,BufNewFile *.md call WritingMode()
+autocmd BufRead,BufNewFile *.tex call WritingMode()
+autocmd BufRead,BufNewFile *.svx call WritingMode()
+
+autocmd BufRead,BufNewFile *.py call PythonMode()
+
+function! WritingMode()
+  setlocal textwidth=80
+  setlocal wrap linebreak nolist
+  setlocal whichwrap+=<,>,h,l
+  nnoremap j gj
+  nnoremap k gk
+  setlocal spell spelllang=en_us
+endfunction
+function! PythonMode()
+  setlocal foldmethod=indent
+  setlocal foldlevel=99
+endfunction