From 1165861a38680c979a0c07690fbaa9e17a66b3c5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=86=B7=E9=85=94=E9=96=91=E5=90=9F?=
 <50296129+Jint-lzxy@users.noreply.github.com>
Date: Mon, 17 Jul 2023 19:43:04 +0800
Subject: [PATCH] perf!: consolidated updates to address performance issues
 (#868)

* perf!: consolidated updates to address performance issues

This fixes #866 and closes #867.

* fixup! perf!: consolidated updates to address performance issues

* revert: `nvim-bufdel` shall always be available (API calls)

* feat(rainbow_delims): line detections for c/cpp

---------

Signed-off-by: Jint-lzxy <50296129+Jint-lzxy@users.noreply.github.com>
Co-authored-by: Layton <caolei6767@google.com>
---
 lua/modules/configs/completion/lsp.lua        |  2 ++
 lua/modules/configs/completion/lspsaga.lua    |  2 +-
 lua/modules/configs/editor/rainbow_delims.lua | 20 ++++++++++++++++++-
 lua/modules/plugins/completion.lua            |  2 +-
 lua/modules/plugins/editor.lua                |  6 +++---
 lua/modules/plugins/tool.lua                  |  4 ++--
 lua/modules/plugins/ui.lua                    |  4 ++--
 7 files changed, 30 insertions(+), 10 deletions(-)

diff --git a/lua/modules/configs/completion/lsp.lua b/lua/modules/configs/completion/lsp.lua
index 2bb53acd2..6bd0436c2 100644
--- a/lua/modules/configs/completion/lsp.lua
+++ b/lua/modules/configs/completion/lsp.lua
@@ -146,4 +146,6 @@ return function()
 		local final_opts = vim.tbl_deep_extend("keep", _opts, opts)
 		nvim_lsp.dartls.setup(final_opts)
 	end
+
+	vim.api.nvim_command([[LspStart]]) -- Start LSPs
 end
diff --git a/lua/modules/configs/completion/lspsaga.lua b/lua/modules/configs/completion/lspsaga.lua
index 92ddaae0c..47e2fb9ca 100644
--- a/lua/modules/configs/completion/lspsaga.lua
+++ b/lua/modules/configs/completion/lspsaga.lua
@@ -94,7 +94,7 @@ return function()
 			in_select = false,
 			auto_save = false,
 			keys = {
-				quit = "<Esc>",
+				quit = "<C-c>",
 				select = "x",
 				exec = "<CR>",
 			},
diff --git a/lua/modules/configs/editor/rainbow_delims.lua b/lua/modules/configs/editor/rainbow_delims.lua
index 820c80f98..037a81397 100644
--- a/lua/modules/configs/editor/rainbow_delims.lua
+++ b/lua/modules/configs/editor/rainbow_delims.lua
@@ -1,7 +1,25 @@
 return function()
+	local function init_strategy(check_lines)
+		return function()
+			local errors = 200
+			vim.treesitter.get_parser():for_each_tree(function(lt)
+				if lt:root():has_error() and errors >= 0 then
+					errors = errors - 1
+				end
+			end)
+			if errors < 0 then
+				return nil
+			end
+			return (check_lines and vim.fn.line("$") > 450) and require("rainbow-delimiters").strategy["global"]
+				or require("rainbow-delimiters").strategy["local"]
+		end
+	end
+
 	vim.g.rainbow_delimiters = {
 		strategy = {
-			[""] = require("rainbow-delimiters").strategy["local"],
+			[""] = init_strategy(false),
+			c = init_strategy(true),
+			cpp = init_strategy(true),
 		},
 		query = {
 			[""] = "rainbow-delimiters",
diff --git a/lua/modules/plugins/completion.lua b/lua/modules/plugins/completion.lua
index 1a4d06632..759137bca 100644
--- a/lua/modules/plugins/completion.lua
+++ b/lua/modules/plugins/completion.lua
@@ -2,7 +2,7 @@ local completion = {}
 
 completion["neovim/nvim-lspconfig"] = {
 	lazy = true,
-	event = { "BufReadPost", "BufAdd", "BufNewFile" },
+	event = { "CursorHold", "CursorHoldI" },
 	config = require("completion.lsp"),
 	dependencies = {
 		{ "williamboman/mason.nvim" },
diff --git a/lua/modules/plugins/editor.lua b/lua/modules/plugins/editor.lua
index af5c0655b..5de346cad 100644
--- a/lua/modules/plugins/editor.lua
+++ b/lua/modules/plugins/editor.lua
@@ -36,11 +36,11 @@ editor["LunarVim/bigfile.nvim"] = {
 }
 editor["ojroques/nvim-bufdel"] = {
 	lazy = true,
-	event = "BufReadPost",
+	event = "BufReadPre",
 }
 editor["rhysd/clever-f.vim"] = {
 	lazy = true,
-	event = { "BufReadPost", "BufAdd", "BufNewFile" },
+	event = { "CursorHold", "CursorHoldI" },
 	config = require("editor.cleverf"),
 }
 editor["numToStr/Comment.nvim"] = {
@@ -87,7 +87,7 @@ editor["nvim-treesitter/nvim-treesitter"] = {
 			vim.api.nvim_command("TSUpdate")
 		end
 	end,
-	event = "BufReadPre",
+	event = "BufReadPost",
 	config = require("editor.treesitter"),
 	dependencies = {
 		{ "nvim-treesitter/nvim-treesitter-textobjects" },
diff --git a/lua/modules/plugins/tool.lua b/lua/modules/plugins/tool.lua
index 02f7ef2aa..5e7916d42 100644
--- a/lua/modules/plugins/tool.lua
+++ b/lua/modules/plugins/tool.lua
@@ -32,7 +32,7 @@ tool["michaelb/sniprun"] = {
 	-- You need to cd to `~/.local/share/nvim/site/lazy/sniprun/` and execute `bash ./install.sh`,
 	-- if you encountered error about no executable sniprun found.
 	build = "bash ./install.sh",
-	cmd = { "SnipRun" },
+	cmd = "SnipRun",
 	config = require("tool.sniprun"),
 }
 tool["akinsho/toggleterm.nvim"] = {
@@ -77,7 +77,7 @@ tool["nvim-telescope/telescope.nvim"] = {
 		{ "debugloop/telescope-undo.nvim" },
 		{
 			"ahmedkhalf/project.nvim",
-			event = "BufReadPost",
+			event = { "CursorHold", "CursorHoldI" },
 			config = require("tool.project"),
 		},
 		{ "nvim-telescope/telescope-fzf-native.nvim", build = "make" },
diff --git a/lua/modules/plugins/ui.lua b/lua/modules/plugins/ui.lua
index 4230ea31f..c6865acc2 100644
--- a/lua/modules/plugins/ui.lua
+++ b/lua/modules/plugins/ui.lua
@@ -48,7 +48,7 @@ ui["zbirenbaum/neodim"] = {
 }
 ui["karb94/neoscroll.nvim"] = {
 	lazy = true,
-	event = "BufReadPost",
+	event = { "CursorHold", "CursorHoldI" },
 	config = require("ui.neoscroll"),
 }
 ui["shaunsingh/nord.nvim"] = {
@@ -67,7 +67,7 @@ ui["folke/paint.nvim"] = {
 }
 ui["dstein64/nvim-scrollview"] = {
 	lazy = true,
-	event = "BufReadPost",
+	event = { "BufReadPost", "BufAdd", "BufNewFile" },
 	config = require("ui.scrollview"),
 }
 ui["edluffy/specs.nvim"] = {