feat(format): use conform for code formatting

config/nvim/lazy-lock.json

@@ -14,6 +14,7 @@
   "cmp-nvim-lsp": { "branch": "main", "commit": "39e2eda76828d88b773cc27a3f61d2ad782c922d" },
   "cmp-path": { "branch": "main", "commit": "91ff86cd9c29299a64f968ebb45846c485725f23" },
   "cmp_luasnip": { "branch": "master", "commit": "05a9ab28b53f71d1aece421ef32fee2cb857a843" },
+  "conform.nvim": { "branch": "master", "commit": "62eba813b7501b39612146cbf29cd07f1d4ac29c" },
   "copilot-cmp": { "branch": "master", "commit": "b6e5286b3d74b04256d0a7e3bd2908eabec34b44" },
   "copilot.lua": { "branch": "master", "commit": "86537b286f18783f8b67bccd78a4ef4345679625" },
   "diffview.nvim": { "branch": "main", "commit": "4516612fe98ff56ae0415a259ff6361a89419b0a" },

config/nvim/lua/core/utils.lua

@@ -88,37 +88,6 @@ function M.signal_handler(signum, callback)
   end)
 end
 
----@param client vim.lsp.Client vim.lsp.Client
----@param bufnr integer buffer number
-function M.setup_formatting(client, bufnr)
-  if not client.supports_method("textDocument/formatting") then
-    return
-  end
-
-  local format = function()
-    if vim.g.lsp_formatting then
-      vim.lsp.buf.format()
-    end
-  end
-
-  local augroup = vim.api.nvim_create_augroup("FormatOnSave", { clear = false })
-  vim.api.nvim_clear_autocmds { group = augroup, buffer = bufnr }
-
-  vim.api.nvim_create_autocmd("BufWritePre", {
-    group = augroup,
-    buffer = bufnr,
-    callback = function()
-      format()
-    end,
-  })
-
-  vim.keymap.set("n", "<leader>lf", function()
-    vim.g.lsp_formatting = not vim.g.lsp_formatting
-    vim.notify("Format on save: " .. (vim.g.lsp_formatting and "on" or "off"))
-    format()
-  end, { buffer = bufnr, desc = "toggle auto formatting" })
-end
-
 function M.lazy_file()
   -- This autocmd will only trigger when a file was loaded from the cmdline.
   -- It will render the file as quickly as possible.

config/nvim/lua/plugins/formatting.lua

@@ -0,0 +1,43 @@
+return {
+  {
+    "stevearc/conform.nvim",
+    dependencies = { "mason.nvim" },
+    event = "BufWritePre",
+    cmd = "ConformInfo",
+
+    keys = {
+      {
+        "<leader>lf",
+        function()
+          vim.g.autoformat = not vim.g.autoformat
+          vim.notify("Format on save: " .. (vim.g.autoformat and "on" or "off"))
+          if vim.g.autoformat then
+            require("conform").format()
+          end
+        end,
+        desc = "toggle auto formatting",
+      },
+    },
+
+    ---@type conform.setupOpts
+    opts = {
+      formatters_by_ft = {
+        lua = { "stylua", lsp_format = "never" },
+        sh = { "shfmt" },
+        sql = { "sqlfluff" },
+      },
+      default_format_opts = {
+        timeout_ms = 3000,
+        async = false,
+        quiet = false,
+        lsp_format = "fallback",
+      },
+      format_on_save = function()
+        if not vim.g.autoformat then
+          return
+        end
+        return {}
+      end,
+    },
+  },
+}

config/nvim/lua/plugins/leetcode.lua

@@ -18,7 +18,7 @@ return {
       ["enter"] = {
         function()
           require("copilot.command").disable()
-          vim.g.lsp_formatting = true
+          vim.g.autoformat = true
           vim.keymap.set("n", "<leader>cc", "<cmd>Leet run<cr>", { desc = "Leetcode run testcase" })
           vim.keymap.set("n", "<leader>cp", "<cmd>Leet submit<cr>", { desc = "Leetcode submit" })
           vim.keymap.set("n", [[<c-\>]], "<cmd>Leet console<cr>", { desc = "Leetcode console" })

config/nvim/lua/plugins/lsp/init.lua

@@ -32,8 +32,6 @@ function M.config()
       vim.lsp.inlay_hint.enable(not enabled)
       vim.notify("LSP inlay hint: " .. (not enabled and "on" or "off"))
     end, opts("toggle inlay hists"))
-
-    require("core.utils").setup_formatting(client, bufnr)
   end
 
   local capabilities = require('cmp_nvim_lsp').default_capabilities()

config/nvim/lua/plugins/lsp/null-ls.lua

@@ -3,9 +3,6 @@ return {
     "nvimtools/none-ls.nvim",
     opts = {
       border = "rounded",
-      on_attach = function(client, bufnr)
-        require("core.utils").setup_formatting(client, bufnr)
-      end,
     },
   },