use only builtin lsp client, add support for linters

init.vim

@@ -12,7 +12,8 @@ Plug 'hrsh7th/nvim-cmp'
 Plug 'williamboman/mason.nvim'
 Plug 'williamboman/mason-lspconfig.nvim'
 Plug 'jose-elias-alvarez/null-ls.nvim'
-Plug 'dense-analysis/ale'
+Plug 'mfussenegger/nvim-lint'
+"Plug 'dense-analysis/ale'
 
 " various plugins
 Plug 'akinsho/bufferline.nvim', { 'tag': 'v3.*' }
@@ -52,6 +53,8 @@ call plug#end()
 set termguicolors
 
 " load main lua file with additional configs
+lua require("my-lspconfig")
+lua require("my-lint")
 lua require("general")
 
 " highlight all .conf files as apache config (:])
@@ -103,13 +106,6 @@ nnoremap <leader>fg <cmd>Telescope live_grep<cr>
 nnoremap <leader>fb <cmd>Telescope buffers<cr>
 nnoremap <leader>fh <cmd>Telescope help_tags<cr>
 
-
-let g:ale_set_balloons = 1
-let g:ale_linters = {
-\   'pyhon': ['bandit'],
-\}
-let g:ale_fixers = {'python': ['yapf']}
-
 " general configs
 set modeline
 let g:sls_use_jinja_syntax = 1

lua/general.lua

@@ -1,7 +1,3 @@
--- disable netrw at the very start of your init.lua (strongly advised)
-vim.g.loaded = 1
-vim.g.loaded_netrwPlugin = 1
-
 -- load lsp and dependencies (help for both coc and independent lsp setup)
 require("mason").setup()
 require("mason-lspconfig").setup({
@@ -17,14 +13,6 @@ require("mason-lspconfig").setup({
         "eslint"
     }
 })
-require("null-ls").setup({
-    sources = {
-        require("null-ls").builtins.formatting.stylua,
-        require("null-ls").builtins.diagnostics.eslint,
-        require("null-ls").builtins.completion.spell,
-        require("null-ls").builtins.code_actions.gitsigns,
-    },
-})
 
 -- setup minimap
 local codewindow = require('codewindow')
@@ -40,80 +28,6 @@ codewindow.setup({
 codewindow.apply_default_keybinds()
 
 
--- setup nvim-lspconfig
--- 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', function() vim.lsp.buf.format { async = true } end, bufopts)
-end
-
-local capabilities = require('cmp_nvim_lsp').default_capabilities()
-
-require'lspconfig'.pyright.setup{
-    on_attach = on_attach,
-    capabilities = capabilities,
-}
-require'lspconfig'.bashls.setup{
-    on_attach = on_attach,
-}
-require'lspconfig'.salt_ls.setup{
-    on_attach = on_attach,
-}
-require'lspconfig'.dockerls.setup{
-    on_attach = on_attach,
-}
-require'lspconfig'.kotlin_language_server.setup{
-    on_attach = on_attach,
-}
-require'lspconfig'.intelephense.setup{
-    on_attach = on_attach,
-}
-require'lspconfig'.eslint.setup{
-    on_attach = on_attach,
-}
-
--- load perl lsp
-require'lspconfig'.perlnavigator.setup{
-    settings = {
-      perlnavigator = {
-          perlPath = 'perl',
-          enableWarnings = true,
-          perltidyProfile = '',
-          perlcriticProfile = '',
-          perlcriticEnabled = true,
-      }
-    },
-    on_attach = on_attach,
-    capabilities = capabilities,
-}
 
 
 -- Set up nvim-cmp.

lua/my-lint.lua

@@ -0,0 +1,10 @@
+require('lint').linters_by_ft = {
+  python = {'flake8', 'pylint', 'pycodestyle',}
+}
+
+vim.api.nvim_create_autocmd({ "TextChanged" }, {
+  callback = function()
+    require("lint").try_lint()
+  end,
+})
+

lua/my-lspconfig.lua

@@ -0,0 +1,79 @@
+-- setup nvim-lspconfig
+-- 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', '<leader>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', function() vim.lsp.buf.format { async = true } end, bufopts)
+end
+
+local capabilities = require('cmp_nvim_lsp').default_capabilities()
+
+require'lspconfig'.pyright.setup{
+    on_attach = on_attach,
+    capabilities = capabilities,
+}
+require'lspconfig'.bashls.setup{
+    on_attach = on_attach,
+    capabilities = capabilities,
+}
+require'lspconfig'.salt_ls.setup{
+    on_attach = on_attach,
+    capabilities = capabilities,
+}
+require'lspconfig'.dockerls.setup{
+    on_attach = on_attach,
+    capabilities = capabilities,
+}
+require'lspconfig'.kotlin_language_server.setup{
+    on_attach = on_attach,
+    capabilities = capabilities,
+}
+require'lspconfig'.intelephense.setup{
+    on_attach = on_attach,
+    capabilities = capabilities,
+}
+require'lspconfig'.eslint.setup{
+    on_attach = on_attach,
+    capabilities = capabilities,
+}
+require'lspconfig'.perlnavigator.setup{
+    settings = {
+      perlnavigator = {
+          perlPath = 'perl',
+          enableWarnings = true,
+          perltidyProfile = '',
+          perlcriticProfile = '',
+          perlcriticEnabled = true,
+      }
+    },
+    on_attach = on_attach,
+    capabilities = capabilities,
+}
+