Set up format on save

nvim/lazy-lock.json

@@ -10,6 +10,7 @@
   "mason-lspconfig.nvim": { "branch": "main", "commit": "67da97f8c2fd12d05427bb485ce07ee6418e0a51" },
   "mason.nvim": { "branch": "main", "commit": "8024d64e1330b86044fed4c8494ef3dcd483a67c" },
   "neoscroll.nvim": { "branch": "master", "commit": "f957373912e88579e26fdaea4735450ff2ef5c9c" },
+  "none-ls.nvim": { "branch": "main", "commit": "db2a48b79cfcdab8baa5d3f37f21c78b6705c62e" },
   "nvim-autopairs": { "branch": "master", "commit": "4d74e75913832866aa7de35e4202463ddf6efd1b" },
   "nvim-cmp": { "branch": "main", "commit": "b5311ab3ed9c846b585c0c15b7559be131ec4be9" },
   "nvim-lspconfig": { "branch": "master", "commit": "b8e7957bde4cbb3cb25a13a62548f7c273b026e9" },

nvim/lua/plugins.lua

@@ -96,6 +96,40 @@ require("lazy").setup({
     end,
   },
 
+  -- Formatting with null-ls
+  {
+    "nvimtools/none-ls.nvim",
+    dependencies = { "nvim-lua/plenary.nvim" },
+    config = function()
+      local null_ls = require("null-ls")
+      local augroup = vim.api.nvim_create_augroup("LspFormatting", {})
+      null_ls.setup({
+        sources = {
+          null_ls.builtins.formatting.prettierd,
+          null_ls.builtins.formatting.black,
+          null_ls.builtins.formatting.stylua,
+        },
+        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()
+                      vim.lsp.buf.format({
+                        async = false,
+                        filter = function(client)
+                            return client.name == "null-ls"
+                        end
+                      })
+                  end,
+              })
+          end
+      end,
+      })
+    end,
+  },
+
   -- Easy commenting/uncommenting
   {
     "numToStr/Comment.nvim",