fix(lsp): don't register autocmd for servers not allowed to format by user config

lazy-lock.json

@@ -1,6 +1,6 @@
 {
   "Comment.nvim": { "branch": "master", "commit": "e89df176e8b38e931b7e71a470f923a317976d86" },
-  "LuaSnip": { "branch": "master", "commit": "508b41fb7b2a7f06522f96eb7742d21f025a8512" },
+  "LuaSnip": { "branch": "master", "commit": "5d57303efde86fcb0959c52b1a6d40f923940f34" },
   "SchemaStore.nvim": { "branch": "main", "commit": "c55c35929dd4e670af7ab6e2e197a4687baa2076" },
   "auto-session": { "branch": "main", "commit": "c8b2f4048f846387361bd04cc185bf1aa7d2e3d1" },
   "cmp-buffer": { "branch": "main", "commit": "3022dbc9166796b644a841a02de8dd1cc1d311fa" },
@@ -12,7 +12,7 @@
   "cosmic-ui": { "branch": "main", "commit": "c0b14531999f2bfef3d927c4dcd57a1a8fed5ee9" },
   "friendly-snippets": { "branch": "main", "commit": "484fb38b8f493ceeebf4e6fc499ebe41e10aae25" },
   "gitsigns.nvim": { "branch": "main", "commit": "114362a85e51918ab2965181ffa31932c181f32f" },
-  "lazy.nvim": { "branch": "main", "commit": "4304035ef4eae2d9dfac4fc082a1b391e6cd928e" },
+  "lazy.nvim": { "branch": "main", "commit": "e6ee0fa6103e9514e85a96fc16902ad7f777b53f" },
   "lsp_lines.nvim": { "branch": "main", "commit": "ec98b45c8280e5ef8c84028d4f38aa447276c002" },
   "lualine.nvim": { "branch": "master", "commit": "d8c392dd75778d6258da4e7c55522e94ac389732" },
   "mason-lspconfig.nvim": { "branch": "main", "commit": "3751eb5c56c67b51e68a1f4a0da28ae74ab771c1" },
@@ -27,7 +27,7 @@
   "nvim-lspconfig": { "branch": "master", "commit": "7b98aadc6e85db4fc3af6c1ec22c4774d965506e" },
   "nvim-notify": { "branch": "master", "commit": "b005821516f1f37801a73067afd1cef2dbc4dfe8" },
   "nvim-tree.lua": { "branch": "master", "commit": "87961d38a7b6cd799ebe193946e86a1037ba66e8" },
-  "nvim-treesitter": { "branch": "master", "commit": "d8c84521dc9f407f88dfca35b9572c6532207a4a" },
+  "nvim-treesitter": { "branch": "master", "commit": "ed021ac3affdfd04a26325896d221f5f519e5971" },
   "nvim-treesitter-refactor": { "branch": "master", "commit": "75f5895cc662d61eb919da8050b7a0124400d589" },
   "nvim-ts-autotag": { "branch": "main", "commit": "fdefe46c6807441460f11f11a167a2baf8e4534b" },
   "nvim-ts-context-commentstring": { "branch": "main", "commit": "4a42b30376c1bd625ab5016c2079631d531d797a" },

lua/cosmic/lsp/providers/defaults.lua

@@ -17,7 +17,8 @@ function M.on_attach(client, bufnr)
     vim.cmd(string.format("command! LspFormat lua require('cosmic.utils.lsp').format(%s)", bufnr))
 
     -- set up auto format on save
-    if user_config.lsp.format_on_save then
+    if user_config.lsp.format_on_save and user_config.lsp.can_client_format(client) then
+      -- check user config to see if we can format on save
       -- collect filetype(s) from user config
       local format_filetypes = ''
       if vim.tbl_islist(user_config.lsp.format_on_save) then
@@ -29,10 +30,11 @@ function M.on_attach(client, bufnr)
       end
 
       -- autocommand for format on save with specified filetype(s)
-      vim.api.nvim_create_autocmd(string.format('BufWritePre %s', format_filetypes), {
-        callback = function()
-          require('cosmic.utils.lsp').format(bufnr)
+      vim.api.nvim_create_autocmd('BufWritePre', {
+        callback = function(evt)
+          require('cosmic.utils.lsp').format(evt.buf)
         end,
+        pattern = format_filetypes,
         group = group,
         nested = true,
       })

lua/cosmic/utils/lsp.lua

@@ -5,10 +5,6 @@ local M = {}
 function M.format(bufnr)
   vim.lsp.buf.format({
     timeout_ms = user_config.lsp.format_timeout,
-    -- check user config to see if we can format on save
-    filter = function(client)
-      return user_config.lsp.can_client_format(client)
-    end,
     bufnr = bufnr or 0,
   })
 end