From 96161899f1b4203b689420ed853f42d345d48ff7 Mon Sep 17 00:00:00 2001
From: Nick Zana <me@nickzana.dev>
Date: Sat, 28 Aug 2021 06:13:19 +0000
Subject: [PATCH] Initial Commit

---
 init.lua | 215 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 215 insertions(+)
 create mode 100644 init.lua

diff --git a/init.lua b/init.lua
new file mode 100644
index 0000000..747c1e8
--- /dev/null
+++ b/init.lua
@@ -0,0 +1,215 @@
+-- Install packer
+local execute = vim.api.nvim_command
+local install_path = vim.fn.stdpath('data')..'/site/pack/packer/opt/packer.nvim'
+
+-- Check that packer is installed
+if vim.fn.empty(vim.fn.glob(install_path)) > 0 then
+  execute('!git clone https://github.com/wbthomason/packer.nvim '..install_path)
+end
+
+vim.cmd [[packadd packer.nvim]]
+vim.api.nvim_exec([[
+  augroup Packer
+    autocmd!
+    autocmd BufWritePost plugins.lua PackerCompile
+  augroup end
+]], false)
+
+local use = require('packer').use
+local packer = require('packer')
+packer.startup(function()
+    use { 'wbthomason/packer.nvim', opt = true } -- Package manager
+
+    -- visuals
+    use 'gruvbox-community/gruvbox'
+
+    -- file management
+    use {
+	    'nvim-telescope/telescope.nvim',
+	    requires = {
+		    {'nvim-lua/popup.nvim'},
+		    {'nvim-lua/plenary.nvim'},
+		    {'nvim-treesitter/nvim-treesitter'},
+	    }
+    }-- search and select tool
+    use 'preservim/nerdtree'
+
+    -- editing behaviour
+    use 'jiangmiao/auto-pairs'
+    use 'tpope/vim-commentary'  -- Easily comment/uncomment code
+    use 'tpope/vim-surround'    -- surround text objects with delimiters
+
+    -- git TODO: Learn how to use
+    use 'airblade/vim-gitgutter'
+    use 'tpope/vim-fugitive'
+
+    -- LSP
+    use 'neovim/nvim-lspconfig'
+    use 'nvim-lua/lsp_extensions.nvim'
+    use 'nvim-lua/completion-nvim'
+
+    -- Language specific
+    use 'rust-lang/rust.vim'
+end)
+
+-- settings -- this is all of the basic vim settings
+local o = vim.o  -- global
+local g = vim.g  -- global 2?
+local wo = vim.wo -- window local
+local bo = vim.bo -- buffer local
+
+-- basic UI
+o.background = 'dark'
+o.termguicolors = true -- enable 24 bit colors in TUI
+vim.cmd('colorscheme gruvbox')
+vim.cmd('syntax enable')
+wo.number = true
+wo.relativenumber = true
+o.signcolumn = 'yes'
+o.splitright = true
+o.splitbelow = true
+
+-- text
+wo.wrap = false
+wo.foldenable = false
+o.mouse = 'a'
+
+-- search
+o.hlsearch = false
+o.incsearch = true
+o.ignorecase = true
+
+-- temporary file configuration
+o.swapfile = false
+o.undofile = true
+bo.undofile = true
+o.dir = '/tmp'
+o.hidden = true -- do not save when switching buffers
+
+-- LSP
+o.updatetime = 250
+o.completeopt = 'menuone,noinsert,noselect'
+o.inccommand = 'nosplit'
+
+-- keybindings
+local map = vim.api.nvim_set_keymap
+g.mapleader = ' '
+-- window navigation
+map('n', '<C-j>', '<C-W>j', {noremap = true})
+map('n', '<C-k>', '<C-W>k', {noremap = true})
+map('n', '<C-l>', '<C-W>l', {noremap = true})
+map('n', '<C-h>', '<C-W>h', {noremap = true})
+-- terminal
+map('t', '<C-e>', '<C-\\><C-n>', {noremap = true})
+-- NERDTree
+map('n', '<leader>nt', '<cmd>NERDTreeToggle<CR>', {noremap = true})
+-- Telescope
+map('n', '<C-p>', '<cmd>Telescope find_files<cr>', {noremap = true})
+
+-- LSP TODO: make lua instead of vimscript
+--
+-- Use completion-nvim in every buffer
+vim.api.nvim_exec([[
+	autocmd BufEnter * lua require'completion'.on_attach()
+]], false)
+
+-- Avoid showing message extra message when using completion
+--
+
+-- Use <Tab> and <S-Tab> to navigate through popup menu
+vim.api.nvim_exec([[
+	inoremap <expr> <Tab>   pumvisible() ? "\<C-n>" : "\<Tab>"
+	inoremap <expr> <S-Tab> pumvisible() ? "\<C-p>" : "\<S-Tab>"
+]], false)
+
+-- use <Tab> as trigger keys
+vim.api.nvim_exec([[
+	imap <Tab> <Plug>(completion_smart_tab)
+	imap <S-Tab> <Plug>(completion_smart_s_tab)
+]], false)
+
+-- code shortcuts
+local opts = { noremap=true, silent=true }
+map('n', 'gD', '<Cmd>lua vim.lsp.buf.declaration()<CR>', opts)
+map('n', 'gd', '<Cmd>lua vim.lsp.buf.definition()<CR>', opts)
+map('n', 'K', '<Cmd>lua vim.lsp.buf.hover()<CR>', opts)
+-- map('n', '<C-k>', '<cmd>lua vim.lsp.buf.signature_help()<CR>', opts)
+map('n', '<space>D', '<cmd>lua vim.lsp.buf.type_definition()<CR>', opts)
+map('n', '<space>rn', '<cmd>lua vim.lsp.buf.rename()<CR>', opts)
+map('n', 'gr', '<cmd>lua vim.lsp.buf.references()<CR>', opts)
+map('n', '<leader>d', '<cmd>lua vim.lsp.diagnostic.show_line_diagnostics()<CR>', opts)
+map('n', '[g', '<cmd>lua vim.lsp.diagnostic.goto_prev()<CR>', opts)
+map('n', ']g', '<cmd>lua vim.lsp.diagnostic.goto_next()<CR>', opts)
+
+-- autocommands
+
+-- Highlight on yank
+vim.cmd('au TextYankPost * lua vim.highlight.on_yank {on_visual = false}'  )-- disabled in visual mode
+
+-- Trim Whitespace
+vim.api.nvim_exec([[
+fun! TrimWhitespace()
+    let l:save = winsaveview()
+    keeppatterns %s/\s\+$//e
+    call winrestview(l:save)
+endfun
+augroup AUTOCOMMANDGROUP
+    autocmd!
+    autocmd BufWritePre * :call TrimWhitespace()
+augroup END
+]], false)
+
+-- language server configs
+-- LSP settings
+local nvim_lsp = require('lspconfig')
+local on_attach = function(_client, bufnr)
+  require'completion'.on_attach(_client)
+  vim.api.nvim_buf_set_option(bufnr, 'omnifunc', 'v:lua.vim.lsp.omnifunc')
+
+  local opts = { noremap=true, silent=true }
+  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', '<leader>D', '<cmd>lua vim.lsp.buf.type_definition()<CR>', opts)
+  vim.api.nvim_buf_set_keymap(bufnr, 'n', '<leader>rn', '<cmd>lua vim.lsp.buf.rename()<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', 'ga', '<cmd>lua vim.lsp.buf.code_action()<CR>', opts)
+  vim.api.nvim_buf_set_keymap(bufnr, 'n', '<leader>e', '<cmd>lua vim.lsp.diagnostic.show_line_diagnostics()<CR>', opts)
+  vim.api.nvim_buf_set_keymap(bufnr, 'n', '[d', '<cmd>lua vim.lsp.diagnostic.goto_prev()<CR>', opts)
+  vim.api.nvim_buf_set_keymap(bufnr, 'n', ']d', '<cmd>lua vim.lsp.diagnostic.goto_next()<CR>', opts)
+  vim.api.nvim_buf_set_keymap(bufnr, 'n', '<leader>q', '<cmd>lua vim.lsp.diagnostic.set_loclist()<CR>', opts)
+end
+
+-- Rust
+vim.cmd([[let g:rustfmt_autosave = 1]])
+nvim_lsp['rust_analyzer'].setup {
+	on_attach = on_attach,
+	settings = {
+		["rust-analyzer"] = {
+			cargo = {
+				allFeatures = true
+			},
+			checkOnSave = {
+				command = "clippy"
+			}
+		}
+	}
+}
+
+-- Enable diagnostics
+vim.lsp.handlers["textDocument/publishDiagnostics"] = vim.lsp.with(
+  vim.lsp.diagnostic.on_publish_diagnostics, {
+    virtual_text = true,
+    signs = true,
+    update_in_insert = true,
+  }
+)
+
+-- Show diagnostic popup on cursor hold
+vim.cmd([[autocmd CursorHold * lua vim.lsp.diagnostic.show_line_diagnostics()]])
+
+-- Enable type inlay hints
+vim.cmd([[autocmd CursorMoved,InsertLeave,BufEnter,BufWinEnter,TabEnter,BufWritePost * lua require'lsp_extensions'.inlay_hints{ prefix = '', highlight = "Comment", enabled = {"TypeHint", "ChainingHint", "ParameterHint"} }]])
+