optimize nvim startup time with lazy.nvim (#400)

lua/config/fzf-lua.lua

@@ -1,4 +1,7 @@
 require("fzf-lua").setup {
+  defaults = {
+    file_icons = "mini",
+  },
   winopts = {
     row = 0.5,
     height = 0.7,

lua/config/indent-blankline.lua

@@ -1,36 +0,0 @@
-local api = vim.api
-
-local exclude_ft = { "help", "git", "markdown", "snippets", "text", "gitconfig", "alpha", "dashboard" }
-
-require("ibl").setup {
-  indent = {
-    -- -- U+2502 may also be a good choice, it will be on the middle of cursor.
-    -- -- U+250A is also a good choice
-    char = "▏",
-  },
-  scope = {
-    show_start = false,
-    show_end = false,
-  },
-  exclude = {
-    filetypes = exclude_ft,
-    buftypes = { "terminal" },
-  },
-}
-
-local gid = api.nvim_create_augroup("indent_blankline", { clear = true })
-api.nvim_create_autocmd("InsertEnter", {
-  pattern = "*",
-  group = gid,
-  command = "IBLDisable",
-})
-
-api.nvim_create_autocmd("InsertLeave", {
-  pattern = "*",
-  group = gid,
-  callback = function()
-    if not vim.tbl_contains(exclude_ft, vim.bo.filetype) then
-      vim.cmd([[IBLEnable]])
-    end
-  end,
-})

lua/config/nvim-cmp.lua

@@ -1,6 +1,14 @@
 -- Setup nvim-cmp.
 local cmp = require("cmp")
-local lspkind = require("lspkind")
+
+-- The extentions needed by nvim-cmp should be loaded beforehand
+require("cmp_nvim_lsp")
+require("cmp_path")
+require("cmp_buffer")
+require("cmp_omni")
+require("cmp_nvim_ultisnips")
+
+local MiniIcons = require("mini.icons")
 
 cmp.setup {
   snippet = {
@@ -43,21 +51,14 @@ cmp.setup {
   view = {
     entries = "custom",
   },
+  -- solution taken from https://github.com/echasnovski/mini.nvim/issues/1007#issuecomment-2258929830
   formatting = {
-    format = lspkind.cmp_format {
-      mode = "symbol_text",
-      menu = {
-        nvim_lsp = "[LSP]",
-        ultisnips = "[US]",
-        path = "[Path]",
-        buffer = "[Buffer]",
-        emoji = "[Emoji]",
-        omni = "[Omni]",
-      },
-      show_labelDetails = true,
-      maxwidth = 40,
-      ellipsis_char = "...",
-    },
+    format = function(_, vim_item)
+      local icon, hl = MiniIcons.get("lsp", vim_item.kind)
+      vim_item.kind = icon .. " " .. vim_item.kind
+      vim_item.kind_hl_group = hl
+      return vim_item
+    end,
   },
 }
 

lua/plugin_specs.lua

@@ -22,24 +22,19 @@ end
 
 local plugin_specs = {
   -- auto-completion engine
+  { "hrsh7th/cmp-nvim-lsp", lazy = true },
+  { "hrsh7th/cmp-path", lazy = true },
+  { "hrsh7th/cmp-buffer", lazy = true },
+  { "hrsh7th/cmp-omni", lazy = true },
+  { "quangnguyen30192/cmp-nvim-ultisnips", lazy = true },
   {
     "hrsh7th/nvim-cmp",
     name = "nvim-cmp",
-    -- event = 'InsertEnter',
-    event = "VeryLazy",
-    dependencies = {
-      "hrsh7th/cmp-nvim-lsp",
-      "onsails/lspkind-nvim",
-      "hrsh7th/cmp-path",
-      "hrsh7th/cmp-buffer",
-      "hrsh7th/cmp-omni",
-      "quangnguyen30192/cmp-nvim-ultisnips",
-    },
+    event = "InsertEnter",
     config = function()
       require("config.nvim-cmp")
     end,
   },
-
   {
     "neovim/nvim-lspconfig",
     event = { "BufRead", "BufNewFile" },
@@ -56,7 +51,7 @@ local plugin_specs = {
   },
   {
     "nvim-treesitter/nvim-treesitter",
-    event = "VeryLazy",
+    lazy = true,
     build = ":TSUpdate",
     config = function()
       require("config.treesitter")
@@ -88,7 +83,7 @@ local plugin_specs = {
   -- Super fast buffer jump
   {
     "smoka7/hop.nvim",
-    event = "VeryLazy",
+    keys = { "f" },
     config = function()
       require("config.nvim_hop")
     end,
@@ -112,17 +107,16 @@ local plugin_specs = {
   },
   {
     "ibhagwan/fzf-lua",
-    -- optional for icon support
-    dependencies = { "nvim-tree/nvim-web-devicons" },
     config = function()
       require("config.fzf-lua")
     end,
+    event = "VeryLazy",
   },
   {
     "MeanderingProgrammer/markdown.nvim",
     main = "render-markdown",
     opts = {},
-    dependencies = { "nvim-treesitter/nvim-treesitter", "nvim-tree/nvim-web-devicons" },
+    ft = { "markdown" },
   },
   -- A list of colorscheme plugin you may want to try. Find what suits you.
   { "navarasu/onedark.nvim", lazy = true },
@@ -141,11 +135,22 @@ local plugin_specs = {
     branch = "v2",
   },
   { "rebelot/kanagawa.nvim", lazy = true },
-  { "nvim-tree/nvim-web-devicons", event = "VeryLazy" },
+
+  -- plugins to provide nerdfont icons
+  {
+    "echasnovski/mini.icons",
+    version = false,
+    config = function()
+      -- this is the compatibility fix for plugins that only support nvim-web-devicons
+      require("mini.icons").mock_nvim_web_devicons()
+      require("mini.icons").tweak_lsp_kind()
+    end,
+    lazy = true,
+  },
 
   {
     "nvim-lualine/lualine.nvim",
-    event = "VeryLazy",
+    event = "BufRead",
     cond = firenvim_not_active,
     config = function()
       require("config.lualine")
@@ -171,11 +176,16 @@ local plugin_specs = {
   },
 
   {
-    "lukas-reineke/indent-blankline.nvim",
-    event = "VeryLazy",
-    main = "ibl",
+    "echasnovski/mini.indentscope",
+    version = false,
     config = function()
-      require("config.indent-blankline")
+      local mini_indent = require("mini.indentscope")
+      mini_indent.setup {
+        draw = {
+          animation = mini_indent.gen_animation.none(),
+        },
+        symbol = "▏",
+      }
     end,
   },
   {
@@ -201,7 +211,7 @@ local plugin_specs = {
     end,
   },
   -- Highlight URLs inside vim
-  { "itchyny/vim-highlighturl", event = "VeryLazy" },
+  { "itchyny/vim-highlighturl", event = "BufReadPost" },
 
   -- notification plugin
   {
@@ -212,6 +222,8 @@ local plugin_specs = {
     end,
   },
 
+  { "nvim-lua/plenary.nvim", lazy = true },
+
   -- For Windows and Mac, we can open an URL in the browser. For Linux, it may
   -- not be possible since we maybe in a server which disables GUI.
   {
@@ -224,7 +236,6 @@ local plugin_specs = {
     enabled = function()
       return vim.g.is_win or vim.g.is_mac
     end,
-    dependencies = { "nvim-lua/plenary.nvim" },
     config = true, -- default settings
     submodules = false, -- not needed, submodules are required only for tests
   },
@@ -252,7 +263,10 @@ local plugin_specs = {
   },
 
   -- Comment plugin
-  { "tpope/vim-commentary", event = "VeryLazy" },
+  { "tpope/vim-commentary", keys = {
+    { "gc", mode = "n" },
+    { "gc", mode = "v" },
+  } },
 
   -- Multiple cursor plugin like Sublime Text?
   -- 'mg979/vim-visual-multi'
@@ -266,7 +280,7 @@ local plugin_specs = {
     config = function()
       require("config.yanky")
     end,
-    event = "VeryLazy",
+    cmd = "YankyRingHistory",
   },
 
   -- Handy unix command inside Vim (Rename, Move etc.)
@@ -322,10 +336,12 @@ local plugin_specs = {
     config = function()
       require("config.gitsigns")
     end,
+    event = "BufRead",
   },
 
   {
     "sindrets/diffview.nvim",
+    cmd = { "DiffviewOpen" },
   },
 
   {
@@ -360,7 +376,7 @@ local plugin_specs = {
     ft = { "markdown" },
   },
 
-  { "chrisbra/unicode.vim", event = "VeryLazy" },
+  { "chrisbra/unicode.vim", keys = { "ga" }, cmd = { "UnicodeSearch" } },
 
   -- Additional powerful text object for vim, this plugin should be studied
   -- carefully to use its full power
@@ -369,9 +385,6 @@ local plugin_specs = {
   -- Plugin to manipulate character pairs quickly
   { "machakann/vim-sandwich", event = "VeryLazy" },
 
-  -- Add indent object for vim (useful for languages like Python)
-  { "michaeljsmith/vim-indent-object", event = "VeryLazy" },
-
   -- Only use these plugin on Windows and Mac and when LaTeX is installed
   {
     "lervag/vimtex",
@@ -481,8 +494,7 @@ local plugin_specs = {
   -- file explorer
   {
     "nvim-tree/nvim-tree.lua",
-    event = "VeryLazy",
-    dependencies = { "nvim-tree/nvim-web-devicons" },
+    keys = { "<space>s" },
     config = function()
       require("config.nvim-tree")
     end,
@@ -490,8 +502,7 @@ local plugin_specs = {
 
   {
     "j-hui/fidget.nvim",
-    event = "VeryLazy",
-    tag = "legacy",
+    event = "BufRead",
     config = function()
       require("config.fidget-nvim")
     end,
@@ -511,13 +522,12 @@ local plugin_specs = {
     "CopilotC-Nvim/CopilotChat.nvim",
     dependencies = {
       { "zbirenbaum/copilot.lua" }, -- or github/copilot.vim
-      { "nvim-lua/plenary.nvim" }, -- for curl, log wrapper
     },
     opts = {
       debug = true, -- Enable debugging
       -- See Configuration section for rest
     },
-    -- See Commands section for default commands if you want to lazy load on them
+    cmd = { "CopilotChat" },
   },
   {
     "zbirenbaum/copilot.lua",
@@ -534,7 +544,6 @@ local plugin_specs = {
     config = function()
       require("config.live-command")
     end,
-    event = "VeryLazy",
   },
   {
     -- show hint for code actions, the user can also implement code actions themselves,
@@ -543,9 +552,11 @@ local plugin_specs = {
     config = function()
       require("config.lightbulb")
     end,
+    event = "LspAttach",
   },
   {
     "Bekaboo/dropbar.nvim",
+    event = "VeryLazy",
   },
   {
     "catgoose/nvim-colorizer.lua",