initial home-manager setup with neovim and starship

neovim/coc.part.lua

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+-- https://raw.githubusercontent.com/neoclide/coc.nvim/master/doc/coc-example-config.lua
+
+-- Some servers have issues with backup files, see #649
+vim.opt.backup = false
+vim.opt.writebackup = false
+
+-- Having longer updatetime (default is 4000 ms = 4s) leads to noticeable
+-- delays and poor user experience
+vim.opt.updatetime = 300
+
+-- Always show the signcolumn, otherwise it would shift the text each time
+-- diagnostics appeared/became resolved
+vim.opt.signcolumn = "yes"
+
+local keyset = vim.keymap.set
+-- Autocomplete
+function _G.check_back_space()
+    local col = vim.fn.col('.') - 1
+    return col == 0 or vim.fn.getline('.'):sub(col, col):match('%s') ~= nil
+end
+
+-- Use Tab for trigger completion with characters ahead and navigate
+-- NOTE: There's always a completion item selected by default, you may want to enable
+-- no select by setting `"suggest.noselect": true` in your configuration file
+-- NOTE: Use command ':verbose imap <tab>' to make sure Tab is not mapped by
+-- other plugins before putting this into your config
+local opts = {silent = false, noremap = true, expr = true, replace_keycodes = false}
+keyset("i", "<TAB>", 'coc#pum#visible() ? coc#pum#next(1) : v:lua.check_back_space() ? "<TAB>" : coc#refresh()', opts)
+keyset("i", "<S-TAB>", [[coc#pum#visible() ? coc#pum#prev(1) : "\<C-h>"]], opts)
+
+-- Make <CR> to accept selected completion item or notify coc.nvim to format
+-- <C-g>u breaks current undo, please make your own choice
+keyset("i", "<cr>", [[coc#pum#visible() ? coc#pum#confirm() : "\<C-g>u\<CR>\<c-r>=coc#on_enter()\<CR>"]], opts)
+
+-- Use <c-space> to trigger completion
+keyset("i", "<c-space>", "coc#refresh()", {silent = true, expr = true})

neovim/default.nix

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+{config, pkgs, ...}:
+{
+	programs.neovim = {
+		enable = true;
+		viAlias = true;
+		vimAlias = true;
+		vimdiffAlias = true;
+		coc = {
+			enable = true;
+			settings = {
+				"zig.enabled" = true;
+				"zig.startUpMessage" = true;
+				"zig.path" = "${pkgs.zls}/bin/zls";
+				"zig.debugLog" = false;
+			};
+		};
+		plugins = with pkgs.vimPlugins; [
+			oil-nvim
+			nvim-colorizer-lua
+			nvim-treesitter
+			mini-nvim
+			plenary-nvim
+			telescope-nvim
+			gitsigns-nvim
+			vim-airline
+			nvim-web-devicons
+			vim-startify
+			nvim-lspconfig
+			everforest
+			tokyonight-nvim
+		];
+		extraLuaConfig = with builtins; (
+				concatStringsSep "\n" (
+					map readFile [
+						./init.lua
+						./coc.part.lua
+					])
+				);
+	};
+
+}

neovim/init.lua

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+vim.opt.number = true
+vim.opt.tabstop = 4
+vim.opt.shiftwidth = 4
+vim.opt.undofile = true
+vim.opt.clipboard = "unnamedplus"
+vim.cmd [[
+  highlight Normal guibg=none
+  highlight NonText guibg=none
+  highlight Normal ctermbg=none
+  highlight NonText ctermbg=none
+]]
+vim.cmd.colorscheme "tokyonight-night";
+-- Disable netrw first:
+vim.g.loaded_netrw = 1
+vim.g.loaded_netrwPlugin = 1
+vim.diagnostic.config({
+ virtual_text = true,
+})
+require("oil").setup({
+  default_file_explorer = true,
+})
+vim.lsp.config['rust-analyzer'] = {
+    cmd = { 'rust-analyzer' },
+	filetypes = { 'rust' },
+	root_markers = { {'Cargo.toml', 'Cargo.lock'} },
+}
+vim.lsp.enable('rust-analyzer')
+-- Keymaps
+vim.keymap.set("n", "-", require("oil").open, { desc = "Open Oil" })
+vim.keymap.set("n", "<leader>-", require("oil").open_float, { desc = "Open Oil float" })
+local builtin = require('telescope.builtin')
+vim.keymap.set('n', '<leader>ff', builtin.find_files, { desc = 'Telescope find files' })
+vim.keymap.set('n', '<leader>fg', builtin.live_grep, { desc = 'Telescope live grep' })
+vim.keymap.set('n', '<leader>fb', builtin.buffers, { desc = 'Telescope buffers' })
+vim.keymap.set('n', '<leader>fh', builtin.help_tags, { desc = 'Telescope help tags' })