neovim config

init.vim

" =================================================================
" settings
" =================================================================
" middle-click paste with mouse
set mouse=v

" number of columns occupied by tab character
set tabstop=2

" multiple spaces as tabstops so <BS> does the right thing
set softtabstop=2

" width for autoindents
set shiftwidth=2

" tabs to spaces
set expandtab

" =================================================================
" plugins
" =================================================================
call plug#begin()

Plug 'williamboman/nvim-lsp-installer'
Plug 'neovim/nvim-lspconfig'
Plug 'nvim-treesitter/nvim-treesitter', { 'do': ':TSUpdate' }

Plug 'tpope/vim-sensible'
Plug 'tpope/vim-sleuth'
Plug 'junegunn/vim-easy-align'

" File Explorer
Plug 'kyazdani42/nvim-web-devicons'
Plug 'projekt0n/circles.nvim'
Plug 'kyazdani42/nvim-tree.lua'

" telescope
Plug 'nvim-lua/plenary.nvim'
Plug 'nvim-telescope/telescope.nvim'
Plug 'nvim-telescope/telescope-fzf-native.nvim', { 'do': 'make' }

" themes
Plug 'Mofiqul/dracula.nvim'

" initialize plugin system
call plug#end()


" =================================================================
" init scripts
" =================================================================
" lsp

lua << EOF
-- lsp-installer
require'nvim-lsp-installer'.setup {
  ensure_installed = {
    "bashls",
    "ccls",
    "cssls",
    "gopls",
    "jsonls",
    "rust_analyzer",
    "sumneko_lua",
    "psalm",
    "taplo",
    "tsserver",
    "yamlls",
    "vls",
    "vuels"
  }
}
EOF

lua << EOF
-- Mappings.
-- See `:help vim.diagnostic.*` for documentation on any of the below functions
local opts = { noremap=true, silent=true }
vim.api.nvim_set_keymap('n', '<space>e', '<cmd>lua vim.diagnostic.open_float()<CR>', opts)
vim.api.nvim_set_keymap('n', '[d', '<cmd>lua vim.diagnostic.goto_prev()<CR>', opts)
vim.api.nvim_set_keymap('n', ']d', '<cmd>lua vim.diagnostic.goto_next()<CR>', opts)
vim.api.nvim_set_keymap('n', '<space>q', '<cmd>lua vim.diagnostic.setloclist()<CR>', 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
  vim.api.nvim_buf_set_keymap(bufnr, 'n', 'gD', '<cmd>lua vim.lsp.buf.declaration()<CR>', opts)
  vim.api.nvim_buf_set_keymap(bufnr, 'n', 'gd', '<cmd>lua vim.lsp.buf.definition()<CR>', opts)
  vim.api.nvim_buf_set_keymap(bufnr, 'n', 'K', '<cmd>lua vim.lsp.buf.hover()<CR>', opts)
  vim.api.nvim_buf_set_keymap(bufnr, 'n', 'gi', '<cmd>lua vim.lsp.buf.implementation()<CR>', opts)
  vim.api.nvim_buf_set_keymap(bufnr, 'n', '<C-k>', '<cmd>lua vim.lsp.buf.signature_help()<CR>', opts)
  vim.api.nvim_buf_set_keymap(bufnr, 'n', '<space>wa', '<cmd>lua vim.lsp.buf.add_workspace_folder()<CR>', opts)
  vim.api.nvim_buf_set_keymap(bufnr, 'n', '<space>wr', '<cmd>lua vim.lsp.buf.remove_workspace_folder()<CR>', opts)
  vim.api.nvim_buf_set_keymap(bufnr, 'n', '<space>wl', '<cmd>lua print(vim.inspect(vim.lsp.buf.list_workspace_folders()))<CR>', opts)
  vim.api.nvim_buf_set_keymap(bufnr, 'n', '<space>D', '<cmd>lua vim.lsp.buf.type_definition()<CR>', opts)
  vim.api.nvim_buf_set_keymap(bufnr, 'n', '<space>rn', '<cmd>lua vim.lsp.buf.rename()<CR>', opts)
  vim.api.nvim_buf_set_keymap(bufnr, 'n', '<space>ca', '<cmd>lua vim.lsp.buf.code_action()<CR>', opts)
  vim.api.nvim_buf_set_keymap(bufnr, 'n', 'gr', '<cmd>lua vim.lsp.buf.references()<CR>', opts)
  vim.api.nvim_buf_set_keymap(bufnr, 'n', '<space>f', '<cmd>lua vim.lsp.buf.formatting()<CR>', opts)
end

-- Use a loop to conveniently call 'setup' on multiple servers and
-- map buffer local keybindings when the language server attaches
local servers = {
    "bashls",
    "ccls",
    "cssls",
    "gopls",
    "jsonls",
    "rust_analyzer",
    "sumneko_lua",
    "psalm",
    "taplo",
    "tsserver",
    "yamlls",
    "vuels"
}

for _, lsp in pairs(servers) do
  require('lspconfig')[lsp].setup {
    on_attach = on_attach,
    flags = {
      -- This will be the default in neovim 0.7+
      debounce_text_changes = 150,
    }
  }
end
EOF

" treesitter
lua << EOF
require'nvim-treesitter.configs'.setup {
  ensure_installed = {
    "bash",
    "c",
    "css",
    "lua",
    "javascript",
    "json",
    "go",
    "php",
    "rust",
    "scss",
    "toml",
    "vim",
    "vue",
  },

  highlight = {
    enable = true,
    disable = { "vim" },
    additional_vim_regex_highlighting = false,
  }
}
EOF

" nvimtree
lua require'nvim-web-devicons'.setup()
lua require'nvim-tree'.setup()

" =================================================================
" keymaps
" =================================================================

" Start interactive EasyAlign in visual mode (e.g. vipga)
xmap ga <Plug>(EasyAlign)
" Start interactive EasyAlign for a motion/text object (e.g. gaip)
nmap ga <Plug>(EasyAlign)

" Nvim Tree Toggle
nnoremap <C-n> :NvimTreeToggle<CR>
nnoremap <leader>r :NvimTreeRefresh
nnoremap <leader>n :NvimTreeFindFile

" Telescope
" Find files using Telescope command-line sugar.
nnoremap <leader>ff <cmd>Telescope find_files<cr>
nnoremap <leader>fg <cmd>Telescope live_grep<cr>
nnoremap <leader>fb <cmd>Telescope buffers<cr>
nnoremap <leader>fh <cmd>Telescope help_tags<cr>