Replace ale with nvim-lsp, other tweaks

.config/nvim/init.vim

@@ -19,56 +19,15 @@ highlight Pmenu guibg=black
 " refresh time
 set updatetime=500
 
-" keybinds
+" CtrlSF
-" code actions
+let g:ctrlsf_default_root = "project"
-nnoremap <C-c><C-a> :lua vim.lsp.buf.code_action()<CR>
 
-" ale
+" Lightline
-let g:ale_linters = {'rust': ['analyzer'], 'css': ['csslint']}
-
-let g:ale_fixers = {
-\   '*': ['remove_trailing_lines', 'trim_whitespace'],
-\   'html': ['prettier'],
-\	'css': ['prettier'],
-\ }
-
-let g:ale_fix_on_save = 1
-
-let g:ale_javascript_prettier_options = '--tab-width 4'
-
-let g:ale_rust_analyzer_config = {
-  \ 'cargo': { 'loadOutDirsFromCheck': v:true },
-  \ 'procMacro': { 'enable': v:true },
-  \ 'checkOnSave': { 'command': 'clippy', 'enable': v:true }
-\ }
-
-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_function = {
 \	 'gitbranch': 'FugitiveHead'
 \ }
 
-let g:lightline.component_type = {
-  \     'linter_checking': 'right',
-  \     'linter_infos': 'right',
-  \     'linter_warnings': 'warning',
-  \     'linter_errors': 'error',
-  \     'linter_ok': 'right',
-\ }
-
-" lightline symbols
-let g:lightline#ale#indicator_checking = "\uf110"
-let g:lightline#ale#indicator_infos = "\uf129"
-let g:lightline#ale#indicator_warnings = "\uf071"
-let g:lightline#ale#indicator_errors = "\uf05e"
-let g:lightline#ale#indicator_ok = "\uf00c"
-
 " lightline modules
 let g:lightline.active = {
 \	'left' : [
@@ -76,16 +35,21 @@ let g:lightline.active = {
 \		['gitbranch', 'readonly', 'filename', 'modified']
 \	],
 \	'right': [
-\		['linter_checking', 'linter_errors', 'linter_warnings'],
+\		['lsp_errors', 'lsp_warnings'],
 \		['lineinfo'],
 \		['percent'],
 \		['fileformat', 'fileencoding', 'filetype']
 \	]
 \}
 
-" CtrlSF
+" lightline symbols
-let g:ctrlsf_default_root = "project"
+let g:lightline#lsp#indicator_errors = "\uf05e"
+let g:lightline#lsp#indicator_info = "\uf129"
+let g:lightline#lsp#indicator_ok = "\uf00c"
+let g:lightline#lsp#indicator_warnings = "\uf071"
 
+" register compoments:
+call lightline#lsp#register()
 
 lua << EOF
 
@@ -120,14 +84,87 @@ for _, server in ipairs(lsp_installer.get_installed_servers()) do
   nvim_lsp[server.name].setup {}
 end
 
+local lsp_formatting = function(bufnr)
+    vim.lsp.buf.format({
+        filter = function(client)
+			if vim.bo.filetype == "rust" then
+				return client.name ~= "null-ls"
+			else
+				return true
+			end
+        end,
+        bufnr = bufnr,
+    })
+end
+
+local augroup = vim.api.nvim_create_augroup("LspFormatting", {})
+
+-- 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)
+    if client.supports_method("textDocument/formatting") then
+        vim.api.nvim_clear_autocmds({ group = augroup, buffer = bufnr })
+        vim.api.nvim_create_autocmd("BufWritePre", {
+			group = augroup,
+            buffer = bufnr,
+            callback = function()
+                lsp_formatting(bufnr)
+            end,
+        })
+	end
+
+	-- 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.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>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 capabilities = require('cmp_nvim_lsp').update_capabilities(vim.lsp.protocol.make_client_capabilities())
-local servers = { 'rust_analyzer', 'emmet_ls', 'cssls' }
+local servers = { 'emmet_ls', 'cssls' }
 for _, lsp in ipairs(servers) do
   nvim_lsp[lsp].setup {
+	on_attach = on_attach,
     capabilities = capabilities,
   }
 end
 
+nvim_lsp['rust_analyzer'].setup {
+	on_attach = on_attach,
+	capabilities = capabilities,
+	settings = {
+		["rust-analyzer"] = {
+			rustfmt = {
+				extraArgs = {"+nightly"},
+			},
+			checkOnSave = {
+				command = "clippy"
+			}
+		},
+	}
+}
+
+local null_ls = require("null-ls")
+null_ls.setup({
+	on_attach = on_attach,
+    sources = {
+		null_ls.builtins.completion.spell,
+		null_ls.builtins.formatting.fixjson,
+		null_ls.builtins.formatting.nginx_beautifier,
+		null_ls.builtins.formatting.prettier,
+		null_ls.builtins.formatting.trim_newlines,
+		null_ls.builtins.formatting.trim_whitespace,
+        null_ls.builtins.code_actions.eslint,
+        null_ls.builtins.diagnostics.fish,
+    },
+})
 
 vim.diagnostic.config({
   virtual_text = {

.vimrc

@@ -32,6 +32,7 @@ Plug 'lilydjwg/colorizer'
 Plug 'mg979/vim-visual-multi'
 Plug 'owickstrom/vim-colors-paramount'
 Plug 'raimondi/delimitmate'
+Plug 'rust-lang/rust.vim', {'for': 'rust'}
 Plug 'tpope/vim-commentary'
 Plug 'vim-scripts/nginx.vim', {'for': 'nginx'}
 Plug 'yuttie/comfortable-motion.vim'
@@ -45,8 +46,11 @@ if has('nvim')
 	Plug 'dyng/ctrlsf.vim'
 	Plug 'folke/todo-comments.nvim'
 	Plug 'hrsh7th/cmp-calc'
+	Plug 'https://github.com/josa42/nvim-lightline-lsp'
+	Plug 'https://github.com/mfussenegger/nvim-lint'
 	Plug 'j-hui/fidget.nvim'
 	Plug 'jghauser/mkdir.nvim'
+	Plug 'jose-elias-alvarez/null-ls.nvim'
 	Plug 'stevearc/dressing.nvim'
 	Plug 'williamboman/nvim-lsp-installer'
     Plug 'antoinemadec/FixCursorHold.nvim'
@@ -61,13 +65,11 @@ if has('nvim')
     Plug 'hrsh7th/nvim-cmp'
     Plug 'hrsh7th/vim-vsnip'
     Plug 'kyazdani42/nvim-web-devicons'
-    Plug 'maximbaz/lightline-ale'
     Plug 'neovim/nvim-lspconfig'
     Plug 'nvim-lua/plenary.nvim'
     Plug 'nvim-telescope/telescope.nvim'
     Plug 'nvim-treesitter/nvim-treesitter', {'do': ':TSUpdate'}
     Plug 'tpope/vim-fugitive'
-    Plug 'w0rp/ale'
 endif
 
 call plug#end()
@@ -162,6 +164,9 @@ set ts=4 sw=4
 
 set autoindent
 set smartindent
+set breakindent
+
+set scrolloff=5
 
 set laststatus=2
 set noshowmode
@@ -176,6 +181,12 @@ set clipboard=unnamedplus
 nnoremap d "_d
 vnoremap d "_d
 
+" Preserve undo history across editing sessions.
+if has('persistent_undo')
+    set undodir=~/.vim/undo
+    set undofile
+endif
+
 set ignorecase
 set smartcase
 set hlsearch