nixos/init.vim

" set runtimepath^=~/.vim runtimepath+=~/.vim/after
" let &packpath = &runtimepath
" source ~/.vimrc

call plug#begin()
" The default plugin directory will be as follows:
"   - Vim (Linux/macOS): '~/.vim/plugged'
"   - Vim (Windows): '~/vimfiles/plugged'
"   - Neovim (Linux/macOS/Windows): stdpath('data') . '/plugged'
" You can specify a custom plugin directory by passing it as the argument
"   - e.g. `call plug#begin('~/.vim/plugged')`
"   - Avoid using standard Vim directory names like 'plugin'

" Make sure you use single quotes

Plug 'neovim/nvim-lspconfig'
Plug 'nvim-treesitter/nvim-treesitter', {'do': ':TSUpdate'}
Plug 'joshdick/onedark.vim'
Plug 'mileszs/ack.vim'
Plug 'scrooloose/nerdtree', { 'on':  'NERDTreeToggle' }
Plug 'junegunn/fzf', { 'do': { -> fzf#install() } }
Plug 'junegunn/fzf.vim'
Plug 'liuchengxu/vista.vim'
Plug 'tpope/vim-unimpaired'
Plug 'tpope/vim-fugitive'
Plug 'tpope/vim-commentary'
Plug 'airblade/vim-gitgutter'
Plug 'vim-airline/vim-airline'
Plug 'vim-airline/vim-airline-themes'
" Plug 'itchyny/lightline.vim'
Plug 'christoomey/vim-tmux-navigator'

" Initialize plugin system
call plug#end()

let g:python3_host_prog = '~/.pyenv/versions/base/bin/python'

lua << EOF
-- Mappings.
-- See `:help vim.diagnostic.*` for documentation on any of the below functions
local opts = { noremap=true, silent=true }
vim.keymap.set('n', '<space>e', vim.diagnostic.open_float, opts)
vim.keymap.set('n', '[d', vim.diagnostic.goto_prev, opts)
vim.keymap.set('n', ']d', vim.diagnostic.goto_next, opts)
vim.keymap.set('n', '<space>q', vim.diagnostic.setloclist, opts)

-- Use an on_attach function to only map the following keys
-- after the language server attaches to the current buffer
local on_attach = function(client, bufnr)
  -- Enable completion triggered by <c-x><c-o>
  vim.api.nvim_buf_set_option(bufnr, 'omnifunc', 'v:lua.vim.lsp.omnifunc')

  -- Mappings.
  -- See `:help vim.lsp.*` for documentation on any of the below functions
  local bufopts = { noremap=true, silent=true, buffer=bufnr }
  vim.keymap.set('n', 'gD', vim.lsp.buf.declaration, bufopts)
  vim.keymap.set('n', 'gd', vim.lsp.buf.definition, bufopts)
  vim.keymap.set('n', 'K', vim.lsp.buf.hover, bufopts)
  vim.keymap.set('n', 'gi', vim.lsp.buf.implementation, bufopts)
  vim.keymap.set('n', '<C-k>', vim.lsp.buf.signature_help, bufopts)
  vim.keymap.set('n', '<space>wa', vim.lsp.buf.add_workspace_folder, bufopts)
  vim.keymap.set('n', '<space>wr', vim.lsp.buf.remove_workspace_folder, bufopts)
  vim.keymap.set('n', '<space>wl', function()
    print(vim.inspect(vim.lsp.buf.list_workspace_folders()))
  end, bufopts)
  vim.keymap.set('n', '<space>D', vim.lsp.buf.type_definition, bufopts)
  vim.keymap.set('n', '<space>rn', vim.lsp.buf.rename, bufopts)
  vim.keymap.set('n', '<space>ca', vim.lsp.buf.code_action, bufopts)
  vim.keymap.set('n', 'gr', vim.lsp.buf.references, bufopts)
  vim.keymap.set('n', '<space>f', vim.lsp.buf.formatting, bufopts)
end

local lsp_flags = {
  -- This is the default in Nvim 0.7+
  debounce_text_changes = 150,
}
require('lspconfig')['pylsp'].setup{
    on_attach = on_attach,
    flags = lsp_flags,
}
require('lspconfig')['fortls'].setup{
    on_attach = on_attach,
    flags = lsp_flags,
}
EOF

map ; :Files<CR>
if executable('ag')
  let g:ackprg = 'ag --vimgrep'
endif

if exists('+termguicolors') && ($COLORTERM == "24bit" || $COLORTERM == "truecolor")
  set termguicolors
endif
colorscheme onedark

set cursorline
let mapleader=","

set number
set relativenumber
set listchars=trail:.,tab:>_
set list
set wrap
set linebreak
set autoread

au BufRead,BufNewFile *.ipynb setlocal filetype=json
au BufRead,BufNewFile *.md setlocal spell
au BufRead,BufNewFile *.code-workspace setlocal filetype=json
au BufRead,BufNewFile *.csv setlocal nowrap
au BufRead,BufNewFile *.service[a-zA-Z0-9]* setlocal filetype=systemd
au TermOpen * setlocal nonumber norelativenumber
syntax on

if &diff
  highlight! link DiffText MatchParen
endif
au OptionSet diff highlight! link DiffText MatchParen

set expandtab
set autoindent
set smartindent
filetype plugin indent on

let g:vista_default_executive = 'nvim_lsp'

imap jk <Esc>
command Bd b# | bd #
command! BufOnly silent! execute "%bd|e#|bd#"
nnoremap <Leader>b :buffers<CR>:buffer<Space>
nnoremap <Leader>i :!zimports %<CR>:!black %<CR><CR>
nnoremap <leader>n :NERDTreeFocus<CR>
nnoremap <leader>k :Vista<CR>
nnoremap <leader>; :Vista finder<CR>
nnoremap <C-n> :NERDTree<CR>
nnoremap <C-t> :NERDTreeToggle<CR>
nnoremap <C-f> :NERDTreeFind<CR>
nnoremap <Leader>a :Ack!<Space>

" Exit Vim if NERDTree is the only window remaining in the only tab.
autocmd BufEnter * if tabpagenr('$') == 1 && winnr('$') == 1 && exists('b:NERDTree') && b:NERDTree.isTabTree() | quit | endif

set splitbelow
set splitright

function! GitStatus()
  let [a,m,r] = GitGutterGetHunkSummary()
  return printf('%s +%d ~%d -%d', FugitiveHead(), a, m, r)
endfunction

let g:netrw_list_hide= '\(^\|\s\s\)\zs\.\S\+'

" let g:slime_target = "tmux"
" let g:slime_default_config = {"socket_name": get(split($TMUX, ","), 0), "target_pane": "{last}"}

" let g:lightline = { 'colorscheme': 'onehalfdark' }
" let g:lightline.component_expand = {
"                         \ 'linter_checking': 'lightline#ale#checking',
"                         \ 'linter_infos': 'lightline#ale#infos',
"                         \ 'linter_warnings': 'lightline#ale#warnings',
"                         \ 'linter_errors': 'lightline#ale#errors',
"                         \ 'linter_ok': 'lightline#ale#ok',
"                         \ }
" let g:lightline.component_type = {
"                         \ 'linter_checking': 'right',
"                         \ 'linter_infos': 'right',
"                         \ 'linter_warnings': 'warning',
"                         \ 'linter_errors': 'error',
"                         \ 'linter_ok': 'right',
"                         \ }
" let g:lightline.component_function = {
"                         \ 'gitstatus': 'GitStatus'
"                         \ }
" let g:lightline.active = {
"                         \ 'left': [ [ 'mode', 'paste' ],
"                         \           [ 'gitstatus', 'readonly', 'filename', 'modified' ] ],
"                         \ 'right': [ [ 'linter_checking', 'linter_errors', 'linter_warnings', 'linter_infos', 'linter_ok', 'lineinfo' ],
"                         \            [ 'percent' ],
"                         \            [ 'fileformat', 'fileencoding', 'filetype' ] ]
"                         \ }
" set laststatus=0
" set noshowmode