perf: lazy load most plugins (#3750)

* perf: lazy load most plugins

* fix(lazy): suggested fixes for pref/lazyloading branch (#3754)

fix(lazy): Suggested fixes from previous comments

fix(lazy): applying suggestions from code review

Co-authored-by: LostNeophyte <lostneophyte@tuta.io>

Co-authored-by: Pratyush Bharati <pbharati@Pratyushs-MacBook-Pro.local>
Co-authored-by: LostNeophyte <lostneophyte@tuta.io>

* chore: format

* move lazy utils to modules.lua

* simplify telescope actions

* refactor: cmp_window local name

* feat: more lazy loading cmds

* refactor(cmp): minor clean up

* perf: set lazy loading by default

* refactor(alpha): remove broken lazy load

* revert: explictily set lazy loading

This reverts commit ba38193e4e.

* test: enable lazy-loading for bigfile

* perf: defer projects and alpha to VimEnter

* refactor(bufferline): add comment

* perf: better lazy load dap/dapui

* perf: lazy load ts-commentstring with Comment.nvim pre_hook

---------

Co-authored-by: pr-313 <46706232+pr-313@users.noreply.github.com>
Co-authored-by: Pratyush Bharati <pbharati@Pratyushs-MacBook-Pro.local>
Co-authored-by: opalmay <opal.mizrahi2@gmail.com>
Co-authored-by: kylo252 <59826753+kylo252@users.noreply.github.com>

lua/lvim/plugins.lua

@@ -6,25 +6,34 @@ local core_plugins = {
     lazy = true,
     dependencies = { "mason-lspconfig.nvim", "nlsp-settings.nvim" },
   },
-  { "williamboman/mason-lspconfig.nvim", lazy = true },
-  { "tamago324/nlsp-settings.nvim", lazy = true },
+  {
+    "williamboman/mason-lspconfig.nvim",
+    cmd = { "LspInstall", "LspUninstall" },
+    lazy = true,
+    dependencies = "mason.nvim",
+  },
+  { "tamago324/nlsp-settings.nvim", cmd = "LspSettings", lazy = true },
   { "jose-elias-alvarez/null-ls.nvim", lazy = true },
   {
     "williamboman/mason.nvim",
     config = function()
       require("lvim.core.mason").setup()
     end,
+    cmd = { "Mason", "MasonInstall", "MasonUninstall", "MasonUninstallAll", "MasonLog" },
+    lazy = true,
   },
   {
     "folke/tokyonight.nvim",
+    lazy = not vim.startswith(lvim.colorscheme, "tokyonight"),
   },
   {
     "lunarvim/lunar.nvim",
+    lazy = lvim.colorscheme ~= "lunar",
   },
-  { "Tastyep/structlog.nvim" },
+  { "Tastyep/structlog.nvim", lazy = true },
 
-  { "nvim-lua/popup.nvim" },
-  { "nvim-lua/plenary.nvim" },
+  { "nvim-lua/popup.nvim", lazy = true },
+  { "nvim-lua/plenary.nvim", cmd = { "PlenaryBustedFile", "PlenaryBustedDirectory" }, lazy = true },
   -- Telescope
   {
     "nvim-telescope/telescope.nvim",
@@ -113,21 +122,24 @@ local core_plugins = {
       vim.opt.rtp:prepend(path) -- treesitter needs to be before nvim's runtime in rtp
       require("lvim.core.treesitter").setup()
     end,
+    cmd = { "TSInstall", "TSUninstall", "TSUpdate", "TSInstallInfo", "TSInstallSync", "TSInstallFromGrammar" },
+    event = "User FileOpened",
   },
   {
+    -- Lazy loaded by Comment.nvim pre_hook
     "JoosepAlviste/nvim-ts-context-commentstring",
-    event = "VeryLazy",
+    lazy = true,
   },
 
   -- NvimTree
   {
     "kyazdani42/nvim-tree.lua",
-    -- event = "BufWinOpen",
-    -- cmd = "NvimTreeToggle",
     config = function()
       require("lvim.core.nvimtree").setup()
     end,
     enabled = lvim.builtin.nvimtree.active,
+    cmd = { "NvimTreeToggle", "NvimTreeOpen", "NvimTreeFocus", "NvimTreeFindFileToggle" },
+    event = "User DirOpened",
   },
   -- Lir
   {
@@ -136,13 +148,15 @@ local core_plugins = {
       require("lvim.core.lir").setup()
     end,
     enabled = lvim.builtin.lir.active,
+    event = "User DirOpened",
   },
   {
     "lewis6991/gitsigns.nvim",
     config = function()
       require("lvim.core.gitsigns").setup()
     end,
-    event = "BufRead",
+    event = "User FileOpened",
+    cmd = "Gitsigns",
     enabled = lvim.builtin.gitsigns.active,
   },
 
@@ -152,6 +166,7 @@ local core_plugins = {
     config = function()
       require("lvim.core.which-key").setup()
     end,
+    cmd = "WhichKey",
     event = "VeryLazy",
     enabled = lvim.builtin.which_key.active,
   },
@@ -159,10 +174,11 @@ local core_plugins = {
   -- Comments
   {
     "numToStr/Comment.nvim",
-    event = "BufRead",
     config = function()
       require("lvim.core.comment").setup()
     end,
+    keys = { { "gc", mode = { "n", "v" } }, { "gb", mode = { "n", "v" } } },
+    event = "User FileOpened",
     enabled = lvim.builtin.comment.active,
   },
 
@@ -173,12 +189,15 @@ local core_plugins = {
       require("lvim.core.project").setup()
     end,
     enabled = lvim.builtin.project.active,
+    event = "VimEnter",
+    cmd = "Telescope projects",
   },
 
   -- Icons
   {
     "nvim-tree/nvim-web-devicons",
     enabled = lvim.use_icons,
+    lazy = true,
   },
 
   -- Status Line and Bufferline
@@ -189,6 +208,7 @@ local core_plugins = {
     config = function()
       require("lvim.core.lualine").setup()
     end,
+    event = "VimEnter",
     enabled = lvim.builtin.lualine.active,
   },
 
@@ -198,6 +218,7 @@ local core_plugins = {
     config = function()
       require("lvim.core.breadcrumbs").setup()
     end,
+    event = "User FileOpened",
     enabled = lvim.builtin.breadcrumbs.active,
   },
 
@@ -207,16 +228,17 @@ local core_plugins = {
       require("lvim.core.bufferline").setup()
     end,
     branch = "main",
+    event = "User FileOpened",
     enabled = lvim.builtin.bufferline.active,
   },
 
   -- Debugging
   {
     "mfussenegger/nvim-dap",
-    -- event = "BufWinEnter",
     config = function()
       require("lvim.core.dap").setup()
     end,
+    lazy = true,
     enabled = lvim.builtin.dap.active,
   },
 
@@ -226,6 +248,7 @@ local core_plugins = {
     config = function()
       require("lvim.core.dap").setup_ui()
     end,
+    lazy = true,
     enabled = lvim.builtin.dap.active,
   },
 
@@ -236,6 +259,7 @@ local core_plugins = {
       require("lvim.core.alpha").setup()
     end,
     enabled = lvim.builtin.alpha.active,
+    event = "VimEnter",
   },
 
   -- Terminal
@@ -260,7 +284,7 @@ local core_plugins = {
     config = function()
       require("lvim.core.illuminate").setup()
     end,
-    event = "VeryLazy",
+    event = "User FileOpened",
     enabled = lvim.builtin.illuminate.active,
   },
 
@@ -269,6 +293,7 @@ local core_plugins = {
     config = function()
       require("lvim.core.indentlines").setup()
     end,
+    event = "User FileOpened",
     enabled = lvim.builtin.indentlines.active,
   },
 
@@ -283,7 +308,7 @@ local core_plugins = {
         end
       end)
     end,
-    enabled = lvim.colorscheme == "onedarker",
+    lazy = lvim.colorscheme ~= "onedarker",
   },
 
   {
@@ -294,6 +319,7 @@ local core_plugins = {
       end)
     end,
     enabled = lvim.builtin.bigfile.active,
+    event = { "FileReadPre", "BufReadPre", "User FileOpened" },
   },
 }