maint: warnings cleanup for nvim config

nix/base-system/init.lua

@@ -232,16 +232,18 @@ vim.api.nvim_create_autocmd('LspAttach', {
         vim.keymap.set({ "n", "v" }, "<Leader>a", vim.lsp.buf.code_action, opts)
         vim.keymap.set("n", "<Leader>f", vim.lsp.buf.format, opts)
         local client = vim.lsp.get_client_by_id(args.data.client_id)
-        if client.server_capabilities.codelens then
+---@diagnostic disable-next-line: undefined-field
+        if client and client.server_capabilities.codelens then
             vim.lsp.codelens.refresh()
         end
     end,
 })
 
 vim.api.nvim_create_autocmd({ 'BufEnter', 'InsertLeave', 'CursorHold' }, {
-    callback = function(_)
-        local clients = vim.lsp.get_active_clients()
+    callback = function(args)
+        local clients = vim.lsp.get_clients({bufnr=args.buf})
         for cid = 1, #clients do
+---@diagnostic disable-next-line: undefined-field
             if clients[cid].server_capabilities.codelens then
                 vim.lsp.codelens.refresh()
                 break
@@ -272,7 +274,7 @@ vim.diagnostic.config({
     severity_sort = false,
     float = {
         border = 'rounded',
-        source = 'always',
+        source = true,
         header = '',
         prefix = '',
     },
@@ -292,7 +294,7 @@ autocmd CursorHold * lua vim.diagnostic.open_float(nil, { focusable = false })
 -- updatetime: set updatetime for CursorHold
 vim.opt.completeopt = { 'menuone', 'noselect', 'noinsert' }
 vim.opt.shortmess = vim.opt.shortmess + { c = true }
-vim.api.nvim_set_option('updatetime', 300)
+vim.api.nvim_set_option_value('updatetime', 300, { scope = "global" })
 vim.opt.sessionoptions = { 'buffers', 'curdir', 'skiprtp', 'localoptions', 'terminal', 'tabpages' }
 -- Fixed column for diagnostics to appear
 -- Show autodiagnostic popup on cursor hover_range
@@ -452,7 +454,7 @@ end)
 -- Neogit integration
 -- See https://github.com/NeogitOrg/neogit for configuration information.
 local neogit = require('neogit')
-neogit.setup()
+neogit.setup {}
 
 vim.keymap.set("n", "<Leader>mg", function()
     neogit.open()
@@ -529,7 +531,7 @@ lean.setup {
             vim.keymap.set({ "n", "v" }, "<Leader>ti", function() vim.cmd("LeanInfoviewToggle") end, opts)
             vim.keymap.set({ "n", "v" }, "<Leader>sg", function() vim.cmd("LeanGoal") end, opts)
             vim.keymap.set({ "n", "v" }, "<Leader>stg", function() vim.cmd("LeanTermGoal") end, opts)
-            vim.api.nvim_buf_set_option(bufnr, 'omnifunc', 'v:lua.vim.lsp.omnifunc')
+            vim.api.nvim_set_option_value('omnifunc', 'v:lua.vim.lsp.omnifunc', {scope = "local", buf=bufnr})
         end
     },
     mappings = true,
@@ -546,7 +548,6 @@ vim.keymap.set("n", "<Leader>sl", telescope_builtins.lsp_workspace_symbols)
 vim.keymap.set("n", "<Leader>dl", telescope_builtins.diagnostics)
 vim.keymap.set("n", "<Leader>rg", telescope_builtins.live_grep)
 vim.keymap.set("n", "<Leader>bl", function() telescope_builtins.buffers({
-    
 }) end)
 
 -- harpoon keymaps