feat(nvim): improve completion and linting

config/nvim/lua/general/mappings.lua

@@ -34,8 +34,22 @@ map('n', '<leader>pv',  ':Vexplore<CR>', options)
 map('i', 'jk' , '<ESC>', options)
 map('i', 'kj' , '<ESC>', options)
 
- -- Don't use arrow keys in  insert mode
+-- Don't use arrow keys in  insert mode
 map('i', '<up>', '<nop>', options)
 map('i', '<down>', '<nop>', options)
 map('i', '<left>', '<nop>', options)
 map('i', '<right>', '<nop>', options)
+
+-- Completion
+vim.o.completeopt = "menuone,noinsert,noselect"
+vim.o.shortmess = vim.o.shortmess .. "c"
+
+map('i', '<Tab>', 'pumvisible() ? "\\<C-n>" : "\\<Tab>"', {expr = true})
+map('i', '<S-Tab>', 'pumvisible() ? "\\<C-p>" : "\\<Tab>"', {expr = true})
+
+-- lsp provider to find the cursor word definition and reference
+map('n', 'gh', ':lua require("lspsaga.provider").lsp_finder()<CR>', {noremap = true, silent = true})
+map('n', '<leader>ca', ':lua require("lspsaga.codeaction").code_action()<CR>', {noremap = true, silent = true})
+map('n', 'K', '<cmd>:lua require("lspsaga.hover").render_hover_doc()<CR>', {noremap = true, silent = true})
+map('n', '[e', '<cmd>:lua require("lspsaga.diagnostic").lsp_jump_diagnostic_prev()<CR>', {noremap = true, silent = true})
+map('n', ']e', '<cmd>:lua require("lspsaga.diagnostic").lsp_jump_diagnostic_next()<CR>', {noremap = true, silent = true})

config/nvim/lua/general/sets.lua

@@ -1,6 +1,7 @@
 local o = vim.o
 local wo = vim.wo
 local bo = vim.bo
+local g = vim.g
 
 -- global options
 o.splitbelow = true
@@ -12,16 +13,20 @@ o.incsearch = true
 o.hlsearch = false
 o.hidden = true
 o.scrolloff=8
-o.completeopt="menuone,noinsert,noselect"
+o.completeopt = "menuone,noselect"
+o.smartindent = true
+o.tabstop = 2
+o.softtabstop = 2
+o.shiftwidth =  2
 -- Having longer updatetime (default is 4000 ms = 4 s) leads to noticeable delays and poor user experience.
 o.updatetime = 50
 
 -- buffer-local options
 bo.expandtab = true
 bo.smartindent = true
-bo.tabstop = 4
-bo.softtabstop = 4
-bo.shiftwidth =  4
+bo.tabstop = 2
+bo.softtabstop = 2
+bo.shiftwidth =  2
 
 -- window-local options
 wo.wrap = false

config/nvim/lua/plugins/init.lua

@@ -2,17 +2,36 @@ local cmd = vim.cmd
 cmd 'packadd paq-nvim'
 local paq = require('paq-nvim').paq
 
+-- Plugin management
 paq{'savq/paq-nvim', opt=true}
-paq { 'dracula/vim', as = 'dracula' }
+
+-- telescope
 paq { 'nvim-lua/plenary.nvim' }
 paq { 'nvim-lua/popup.nvim' }
 paq { 'nvim-telescope/telescope.nvim' }
+paq 'nvim-telescope/telescope-fzy-native.nvim'
+
+-- lsp and completion
+paq { 'kabouzeid/nvim-lspinstall' }
+paq { 'neovim/nvim-lspconfig' }
+paq { 'hrsh7th/nvim-compe' }
+paq { 'glepnir/lspsaga.nvim' }
+paq { 'simrat39/symbols-outline.nvim' }
+
+-- tree sitter
 paq { 'nvim-treesitter/nvim-treesitter' }
+paq { 'nvim-treesitter/playground' }
+
+-- Git
+paq { 'tpope/vim-fugitive' }
+paq { 'airblade/vim-gitgutter' }
+
+-- Powerline and themes
 paq { 'vim-airline/vim-airline' }
 paq { 'vim-airline/vim-airline-themes' }
-paq { 'tpope/vim-fugitive' }
+paq { 'dracula/vim', as = 'dracula' }
 paq { 'kyazdani42/nvim-web-devicons' }
-paq { 'neovim/nvim-lspconfig' }
-paq { 'kabouzeid/nvim-lspinstall' }
-paq { 'nvim-lua/completion-nvim' }
+
+-- language formatter
+paq { 'sbdchd/neoformat' }
 

config/nvim/lua/plugins/lsp.lua

@@ -1,12 +1,12 @@
-local on_attach = require'completion'.on_attach
+--local on_attach = require'completion'.on_attach
 
 -- config that activates keymaps and enables snippet support
 local function make_config()
     local capabilities = vim.lsp.protocol.make_client_capabilities()
     capabilities.textDocument.completion.completionItem.snippetSupport = true
     return {
         capabilities = capabilities,
-        on_attach = on_attach,
+        --on_attach = on_attach,
     }
 end
 
@@ -27,3 +27,32 @@ require'lspinstall'.post_install_hook = function ()
     setup_servers() -- reload installed servers
     vim.cmd("bufdo e") -- this triggers the FileType autocmd that starts the server
 end
+
+require("compe").setup(
+  {
+    enabled = true,
+    autocomplete = true,
+    debug = false,
+    min_length = 1,
+    preselect = "enable",
+    throttle_time = 80,
+    source_timeout = 200,
+    incomplete_delay = 400,
+    max_abbr_width = 100,
+    max_kind_width = 100,
+    max_menu_width = 100,
+    documentation = true,
+    source = {
+      path = true,
+      buffer = true,
+      calc = true,
+      vsnip = true,
+      nvim_lsp = true,
+      nvim_lua = true,
+      spell = false,
+      tags = false,
+      snippets_nvim = true,
+      treesitter = false
+    }
+  }
+)