Add back format on save functionality

lua/valeth/plugins/formatting.lua

@@ -0,0 +1,39 @@
+local autocmd = vim.api.nvim_create_autocmd
+local autogroup = vim.api.nvim_create_augroup
+
+local spec = {
+    "mhartington/formatter.nvim",
+}
+
+spec.config = function()
+    local formatter = require("formatter")
+
+    formatter.setup({
+        filetype = {
+            c = {
+                require("formatter.filetypes.c").clangformat
+            },
+        }
+    })
+end
+
+local function format_file()
+    local bufnr = vim.api.nvim_get_current_buf()
+    local lsp_client = vim.lsp.get_active_clients({ bufnr = bufnr })
+
+    if #lsp_client ~= 0 then
+        vim.lsp.buf.format({ async = false, timeout_ms = 5000 })
+    else
+        vim.cmd(":FormatWrite")
+    end
+end
+
+vim.keymap.set("n", "<Leader>fmt", format_file)
+
+-- Format on save
+autocmd("BufWritePost", {
+    group = autogroup("FormatOnSave", {}),
+    callback = format_file,
+})
+
+return spec

lua/valeth/plugins/lsp.lua

@@ -7,7 +7,6 @@ spec.dependencies = {
     "williamboman/mason-lspconfig.nvim",
     "nvim-telescope/telescope.nvim",
     "folke/neodev.nvim",
-    "mhartington/formatter.nvim",
 }
 
 spec.config = function()
@@ -59,10 +58,6 @@ spec.config = function()
             vim.keymap.set("n", "<Leader>ci", vim.diagnostic.open_float, opts)
             vim.keymap.set("n", "<Leader>re", vim.lsp.buf.rename, opts)
             vim.keymap.set({ "n", "i" }, "<C-h>", vim.lsp.buf.signature_help, opts)
-
-            vim.keymap.set("n", "<Leader>fmt", function()
-                vim.lsp.buf.format({ async = false, timeout_ms = 5000 })
-            end)
         end
     })