add plugin lazydev.nvim

Only show fold signs for fold level below a certain level to avoid
clutter the left side columns with a lot of folding signs

lua/config/lsp.lua

@@ -110,6 +110,11 @@ local custom_attach = function(client, bufnr)
 end
 
 local capabilities = require('cmp_nvim_lsp').default_capabilities()
+-- required by nvim-ufo
+capabilities.textDocument.foldingRange = {
+    dynamicRegistration = false,
+    lineFoldingOnly = true
+}
 
 local lspconfig = require("lspconfig")
 

lua/config/nvim-statuscol.lua

@@ -0,0 +1,23 @@
+local builtin = require("statuscol.builtin")
+local ffi = require("statuscol.ffidef")
+local C = ffi.C
+
+-- only show fold level up to this level
+local fold_level_limit = 2
+local function foldfunc(args)
+  local foldinfo = C.fold_info(args.wp, args.lnum)
+  if foldinfo.level > fold_level_limit then
+    return " "
+  end
+
+  return builtin.foldfunc(args)
+end
+
+require("statuscol").setup {
+  relculright = false,
+  segments = {
+    { text = { "%s" }, click = "v:lua.ScSa" },
+    { text = { builtin.lnumfunc, " " }, click = "v:lua.ScLa" },
+    { text = { foldfunc, " " }, condition = { true, builtin.not_empty }, click = "v:lua.ScFa" },
+  },
+}

lua/config/nvim_ufo.lua

@@ -30,10 +30,9 @@ local handler = function(virtText, lnum, endLnum, width, truncate)
   return newVirtText
 end
 
-local opts = {}
-opts["fold_virt_text_handler"] = handler
-
-require("ufo").setup(opts)
+require("ufo").setup {
+  fold_virt_text_handler = handler,
+}
 
 vim.keymap.set("n", "zR", require("ufo").openAllFolds)
 vim.keymap.set("n", "zM", require("ufo").closeAllFolds)

lua/plugin_specs.lua

@@ -156,7 +156,7 @@ local plugin_specs = {
     event = "VeryLazy",
     cond = firenvim_not_active,
     config = function()
-      require("config.statusline")
+      require("config.lualine")
     end,
   },
 
@@ -190,15 +190,7 @@ local plugin_specs = {
     "luukvbaal/statuscol.nvim",
     opts = {},
     config = function()
-      local builtin = require("statuscol.builtin")
-      require("statuscol").setup {
-        relculright = true,
-        segments = {
-          { text = { "%s" }, click = "v:lua.ScSa" },
-          { text = { builtin.lnumfunc, " " }, click = "v:lua.ScLa" },
-          { text = { builtin.foldfunc, " " }, condition = {true, builtin.not_empty}, click = "v:lua.ScFa" },
-        },
-      }
+      require("config.nvim-statuscol")
     end,
   },
   {
@@ -542,6 +534,11 @@ local plugin_specs = {
       require("config.fidget-nvim")
     end,
   },
+  {
+    "folke/lazydev.nvim",
+    ft = "lua", -- only load on lua files
+    opts = {},
+  },
 }
 
 require("lazy").setup {