feat: add linting Neovim configuration

vim/lazy-lock.json

@@ -20,6 +20,7 @@
   "mini.icons": { "branch": "main", "commit": "a2742459f0ee32806c2438ca06b4d8b331f3f4d4" },
   "nvim-cmp": { "branch": "main", "commit": "983453e32cb35533a119725883c04436d16c0120" },
   "nvim-highlight-colors": { "branch": "main", "commit": "e967e2ba13fd4ca731b41d0e5cc1ac2edcd6e25e" },
+  "nvim-lint": { "branch": "master", "commit": "36da8dd0ddc4f88e0beae234c20e75397326f143" },
   "nvim-lspconfig": { "branch": "master", "commit": "056f569f71e4b726323b799b9cfacc53653bceb3" },
   "nvim-solarized-lua": { "branch": "master", "commit": "d69a263c97cbc765ca442d682b3283aefd61d4ac" },
   "nvim-treesitter": { "branch": "master", "commit": "cfc6f2c117aaaa82f19bcce44deec2c194d900ab" },

vim/lua/plugins/lint.lua

@@ -0,0 +1,33 @@
+return {
+  {
+    "mfussenegger/nvim-lint",
+    event = { "BufReadPre", "BufNewFile" },
+    config = function()
+      local lint = require("lint")
+      lint.linters_by_ft = {
+        dockerfile = { "hadolint" },
+        json = { "jsonlint" },
+        markdown = { "markdownlint" },
+        terraform = { "tflint" },
+      }
+
+      -- Create autocommand which carries out the actual linting
+      -- on the specified events.
+      local lint_augroup = vim.api.nvim_create_augroup("lint", { clear = true })
+      vim.api.nvim_create_autocmd(
+        { "BufEnter", "BufWritePost", "InsertLeave" },
+        {
+          group = lint_augroup,
+          callback = function()
+            -- Only run the linter in buffers that you can modify in order to
+            -- avoid superfluous noise, notably within the handy LSP pop-ups that
+            -- describe the hovered symbol using Markdown.
+            if vim.opt_local.modifiable:get() then
+              lint.try_lint()
+            end
+          end,
+        }
+      )
+    end,
+  },
+}

vim/lua/plugins/lsp.lua

@@ -169,6 +169,7 @@ return {
       "stylua", -- Lua
       --linters
       "flake8", -- Python
+      "hadolint", -- Dockerfile
       "jsonlint", -- Json
       "markdownlint", -- Markdown
       "tflint", -- Terraform