Better lsp support that checks wheter a needed binary is installed before installing the lsp with mason to avoid errors

README.md

@@ -3,3 +3,26 @@
 You can configure the current semester that you are in for university integrations.  
 There are certain things required like `make` and `npm` for various plugins.
 
+## Dependencies
+
+To install proper snippets and get the basic lsp the following programs are needed in path.
+
+```
+make
+curl
+gcc
+libc
+bash
+```
+
+Optionally for more lsp servers.
+
+```
+go
+npm
+```
+
+## General
+
+This configuration is based on the lazy plugin manager.
+

lua/conf.lua

@@ -0,0 +1,7 @@
+local config = {}
+
+config.season = "S3"
+config.projects = vim.fn.expand("~/projects")
+config.uni_dir = vim.fn.expand("~/projects/university/" .. config.season)
+
+return config

lua/config/keymaps.lua

@@ -3,8 +3,7 @@
 require("utils.functions")
 require("custom.uni")
 
--- TODO: move this to a config file
+local conf = require("conf")
-local season = "S3"
 
 local links = require("utils.linker")
 local user = vim.fn.system('whoami'):gsub('\n', '')
@@ -23,13 +22,6 @@ end
 --------------------- KEYMAPS -------------------------
 -------------------------------------------------------
 
--- Fast quitter
-vim.keymap.set('n', '<leader>q', function()
-	pcall(function()
-		vim.cmd('wa')
-	end)
-	vim.cmd('qa!')
-end)
 
 -- Fast window switch
 vim.keymap.set("n", "<leader>w", "<C-w>w")
@@ -46,9 +38,6 @@ vim.keymap.set("n", "<leader>me", ":mes<CR>")
 vim.keymap.set("n", "<leader>snt", "<cmd>set nu<CR>")
 vim.keymap.set("n", "<leader>snf", "<cmd>set nonu<CR>")
 
-vim.keymap.set("n", "<leader>nv", function()
-	select_course_directory()
-end, { desc = "Open UniCourse menu" })
 
 vim.keymap.set("n", "n", "nzz", { silent = true })
 vim.keymap.set("n", "N", "Nzz", { silent = true })
@@ -58,26 +47,15 @@ vim.keymap.set("n", "<C-u>", "<C-u>zz", { silent = true })
 vim.keymap.set("n", "<C-d>", "<C-d>zz", { silent = true })
 vim.keymap.set('n', '<leader>a', 'm9ggVG"+y`9')
 vim.keymap.set('n', '<leader>va', 'ggVG')
-
-
-
--- Get a ready to use terminal
 vim.keymap.set('n', '<leader>tr', ':tabnew<CR>:term<CR>i')
 
--- This needs to be refined for quick access to a new file or a recently edited one
+-- Indent all will be replaced by the formatting of lsp where the lsp is installed
-vim.keymap.set('n', '<leader>ov',
+vim.keymap.set('n', '<leader>ia', 'gg=G<C-o>zz')
-	function()
+
-		local uni_dir = vim.fn.expand("~/projects/university/" .. season)
+vim.keymap.set('n', '<leader>ya', 'ggVG"+y<C-o>')
+
+vim.keymap.set('n', '<leader>ss', ':wa<CR>')
 
-		require('telescope.builtin').find_files {
-			prompt_title = "Select Vorlesung in " .. season,
-			cwd = uni_dir,
-			find_command = {
-				"eza", "-1", "-D"
-			},
-		}
-	end
-)
 -- new quick note file
 -- TODO: make this smarter
 vim.keymap.set("n", "<leader>nn", ":e ~/synced/brainstore/zettelkasten/quick<CR>", { silent = true })
@@ -119,30 +97,9 @@ vim.keymap.set('n', '<leader>oho', ':e ~/configuration/nixos/hosts<CR>')
 vim.keymap.set('n', '<leader>os', ':e ~/configuration/nixos/modules/server<CR>')
 vim.keymap.set('n', '<leader>ot', ':e ~/synced/brainstore/todos/todo.txt<CR>`.zz')
 vim.keymap.set('n', '<leader>od', ':e ~/synced/brainstore/todos/done.txt<CR>`.zz')
-vim.keymap.set('n', '<leader>ou', ':e ~/projects/university/' .. season .. '/input.txt<CR>`.zz')
+vim.keymap.set('n', '<leader>ou', ':e ~/projects/university/' .. conf.season .. '/input.txt<CR>`.zz')
 vim.keymap.set('n', '<leader>oz', ':e ~/.zshrc<CR>`.zz')
 vim.keymap.set('n', '<leader>oaa', ':e ~/.common_shell<CR>`.zz')
-vim.keymap.set("n", "<leader>or",
-	function()
-		local last_file_path = vim.fn.stdpath('data') .. "/lastfile.txt"
-		local file = io.open(last_file_path, "r")
-		if file then
-			local last_file = file:read("*line")
-			file:close()
-			if last_file and vim.fn.filereadable(last_file) == 1 then
-				vim.cmd("edit " .. last_file)
-				pcall(function()
-					vim.cmd('normal! `.') -- Go to the last edit position
-					vim.cmd('normal! zz') -- Center the cursor on the screen
-				end)
-			else
-				print("Last file does not exist or is not readable")
-			end
-		else
-			print("No last file found")
-		end
-	end
-	, { noremap = true, silent = true })
 
 
 vim.keymap.set('n', '<leader>ok', open_cal)
@@ -156,12 +113,6 @@ vim.keymap.set("n", "<leader>lc", links.insert_contact_link, { desc = "Link Cont
 vim.keymap.set("n", "<leader>ld", links.insert_date_link, { desc = "Link Contact" })
 
 
--- Indent all will be replaced by the formatting of lsp where the lsp is installed
-vim.keymap.set('n', '<leader>ia', 'gg=G<C-o>zz')
-
-vim.keymap.set('n', '<leader>ya', 'ggVG"+y<C-o>')
-
-vim.keymap.set('n', '<leader>ss', ':wa<CR>')
 vim.keymap.set('n', '<leader>sw', function()
 	local word = vim.fn.expand("<cword>")
 	local replacement = vim.fn.input("Replace '" .. word .. "' with: ")
@@ -196,26 +147,24 @@ end, { desc = "Substitute selection in file" })
 vim.keymap.set('n', '<leader>pp', function()
 	vim.api.nvim_command('normal! "+p')
 end, { desc = 'Paste from system clipboard' })
-
 vim.keymap.set('v', '<leader>p', function()
 	vim.cmd('normal! "+p')
 end, { desc = 'Yank to clipboard and keep the selection' })
-
+vim.keymap.set("n", "<leader>nv", function()
------------------------- VISUAL ------------------
+	select_course_directory()
+end, { desc = "Open UniCourse menu" })
 
 vim.keymap.set('v', 'p', function()
 	local unnamed_content = vim.fn.getreg('""')
 	vim.api.nvim_command('normal! p')
 	vim.fn.setreg('""', unnamed_content)
 end, { desc = 'Paste from unnamed register (don\'t overwrite it) in visual mode' })
+
 vim.keymap.set('v', '<leader>y', function()
 	vim.cmd('normal! "+y')
 	vim.cmd('normal! gv')
 end, { desc = 'Yank to clipboard and keep the selection' })
 
-
----------------------------- INSERT ---------------------------
-
 vim.keymap.set('i', '<C-k>', function()
 	local col = vim.fn.col('.')
 	local line = vim.fn.line('.')
@@ -228,6 +177,7 @@ vim.keymap.set('i', '<C-k>', function()
 		end
 	end
 end)
+
 -- Move left with wrapping
 vim.keymap.set('i', '<C-j>', function()
 	local col = vim.fn.col('.')
@@ -242,3 +192,46 @@ vim.keymap.set('i', '<C-j>', function()
 		end
 	end
 end, { noremap = true, silent = true })
+
+vim.keymap.set("n", "<leader>or",
+	function()
+		local last_file_path = vim.fn.stdpath('data') .. "/lastfile.txt"
+		local file = io.open(last_file_path, "r")
+		if file then
+			local last_file = file:read("*line")
+			file:close()
+			if last_file and vim.fn.filereadable(last_file) == 1 then
+				vim.cmd("edit " .. last_file)
+				pcall(function()
+					vim.cmd('normal! `.') -- Go to the last edit position
+					vim.cmd('normal! zz') -- Center the cursor on the screen
+				end)
+			else
+				print("Last file does not exist or is not readable")
+			end
+		else
+			print("No last file found")
+		end
+	end
+	, { noremap = true, silent = true })
+
+-- Fast quitter
+vim.keymap.set('n', '<leader>q', function()
+	pcall(function()
+		vim.cmd('wa')
+	end)
+	vim.cmd('qa!')
+end)
+
+-- This needs to be refined for quick access to a new file or a recently edited one
+vim.keymap.set('n', '<leader>ov',
+	function()
+		require('telescope.builtin').find_files({
+			prompt_title = "Select lecture in " .. conf.season,
+			cwd = conf.uni_dir,
+			find_command = {
+				"eza", "-1", "-D"
+			}
+		})
+	end
+)

lua/plugins/lsp.lua

@@ -1,5 +1,66 @@
+-- Prefilled with lsp that have no dependencies
+local servers = { "lua_ls", "rust_analyzer", "denols" }
+
+local function populate_servers()
+	if vim.fn.executable("go") == 1 then
+		table.insert(servers, "gopls")
+	else
+		vim.notify("[mason] Skipping gopls (go not found)", vim.log.levels.WARN)
+	end
+
+	if vim.fn.executable("npm") == 1 then
+		table.insert(servers, "pyright")
+		table.insert(servers, "clangd")
+		table.insert(servers, "bashls")
+	else
+		vim.notify("[mason] Skipping install of some lsp (npm not found)", vim.log.levels.WARN)
+	end
+
+	if vim.fn.executable("cargo") == 1 then
+		table.insert(servers, "nil_ls")
+	else
+		vim.notify("[mason] Skipping nil (cargo not found)", vim.log.levels.WARN)
+	end
+end
+populate_servers()
+
 return {
-	{ "stevearc/aerial.nvim", config = true },
+	{
+		"stevearc/aerial.nvim",
+		dependencies = {
+			"nvim-treesitter/nvim-treesitter",
+			"nvim-tree/nvim-web-devicons"
+		},
+		config = true,
+		keys = {
+			{
+				"<leader>ae",
+				function()
+					require("aerial")
+					vim.cmd("AerialToggle")
+				end
+
+			},
+			{
+				"}",
+				function()
+					require("aerial")
+					vim.cmd("AerialNext")
+				end
+
+			},
+			{
+				"{",
+				function()
+					require("aerial")
+					vim.cmd("AerialPrev")
+				end
+
+			},
+
+
+		},
+	},
 	{
 		"nvimdev/lspsaga.nvim",
 		opts = {
@@ -12,36 +73,31 @@ return {
 		},
 	},
 	{
-		"neovim/nvim-lspconfig",
-		dependencies = {
 		"williamboman/mason.nvim",
-			"williamboman/mason-lspconfig.nvim",
+		dependencies = {
+			"williamboman/mason-lspconfig.nvim"
+		},
+		priority = -10;
+		config = function()
+			require("mason").setup()
 
+
+			require("mason-lspconfig").setup({
+				ensure_installed = servers,
+				automatic_installation = true,
+			})
+		end,
+
+	},
+	{
 		"hrsh7th/nvim-cmp",
+		dependencies = {
+			"hrsh7th/cmp-path",
+			"saadparwaiz1/cmp_luasnip",
 			"hrsh7th/cmp-nvim-lsp",
 			"hrsh7th/cmp-buffer",
-			"nvimdev/lspsaga.nvim",
-			"hrsh7th/cmp-path",
-			"L3MON4D3/LuaSnip",
-			"saadparwaiz1/cmp_luasnip",
 		},
 		config = function()
-			local lspconfig = require("lspconfig")
-
-			-- Declarative important have npm and other tools installed
-			local servers = { "gopls", "pyright", "lua_ls", "rust_analyzer", "clangd" }
-
-			-- Custom overwrites for servers
-			local server_settings = {
-				lua_ls = {
-					settings = {
-						Lua = {
-							diagnostics = { globals = { "vim" } },
-						},
-					},
-				},
-			}
-
 			local cmp = require("cmp")
 			cmp.setup({
 				snippet = {
@@ -61,6 +117,28 @@ return {
 					{ name = "path" },
 				}),
 			})
+		end
+	},
+	{
+		"neovim/nvim-lspconfig",
+		dependencies = {
+			"hrsh7th/cmp-nvim-lsp",
+			"L3MON4D3/LuaSnip",
+		},
+		config = function()
+			local lspconfig = require("lspconfig")
+
+			-- Custom overwrites for servers
+			local server_settings = {
+				lua_ls = {
+					settings = {
+						Lua = {
+							diagnostics = { globals = { "vim" } },
+						},
+					},
+				},
+			}
+
 
 			local capabilities = require("cmp_nvim_lsp").default_capabilities()
 
@@ -93,8 +171,6 @@ return {
 				end, opts)
 			end
 
-
-
 			-- Setup servers manually
 			for _, server in ipairs(servers) do
 				local config = {
@@ -107,13 +183,6 @@ return {
 				lspconfig[server].setup(config)
 			end
 
-			-- Mason for autoinstall of servers
-			require("mason").setup()
-			require("mason-lspconfig").setup({
-				ensure_installed = servers,
-				automatic_installation = true,
-			})
-
 			-- Add text in diagnostics
 			vim.diagnostic.config({
 				virtual_text = true,