nvim: Use lua instead of VimScript

This includes switching from vim-plug to packer.nvim, and cleaning up
some packages I never use.

base/.config/nvim/ginit.vim

@@ -1,13 +0,0 @@
-set mouse=a
-
-if exists(':Guifont')
-    Guifont Terminus [xos4]:h9
-endif
-
-if exists(':GuiTabline')
-    GuiTabline 0
-endif
-
-if exists(':GuiPopupmenu')
-    GuiPopupmenu 0
-endif

base/.config/nvim/init.lua

@@ -0,0 +1,59 @@
+local fn = vim.fn
+local packer_bootstrap = false
+local install_path = fn.stdpath('data') .. "/site/pack/packer/opt/packer.nvim"
+
+if fn.empty(fn.glob(install_path)) > 0 then
+    vim.api.nvim_echo({ {"Installing packer.nvim", "Type" } }, true, {})
+    packer_bootstrap = fn.system({'git', 'clone', '--depth', '1', 'https://github.com/wbthomason/packer.nvim', install_path})
+end
+
+vim.cmd([[ packadd packer.nvim ]])
+vim.api.nvim_create_autocmd("BufWritePost", {
+    pattern = "init.lua",
+    command = "source <afile> | PackerCompile",
+})
+
+
+require('packer').startup(function(use)
+    use { "wbthomason/packer.nvim", opt = true }
+    use { "nvim-lua/plenary.nvim" }
+    use {
+        "lewis6991/gitsigns.nvim",
+        config = function()
+            require('gitsigns').setup()
+        end
+    }
+    use { "catppuccin/nvim", as = "catppuccin",
+        config = function()
+            vim.g.catppuccin_flavour = "frappe"
+            require("catppuccin").setup({
+
+                transparent_background = true,
+                integrations = {
+                    gitsigns = true
+                }
+            })
+
+            vim.cmd([[ colorscheme catppuccin ]])
+        end
+    }
+
+
+    if packer_bootstrap then
+        require('packer').sync()
+    end
+end)
+
+vim.o.sw = 4
+vim.o.ts = 4
+vim.o.sts = 4
+vim.o.expandtab = true
+vim.o.compatible = false
+
+vim.cmd([[
+  syntax on
+  autocmd FileType make set noexpandtab shiftwidth=8 tabstop=8 softtabstop=0
+  set bs=indent
+  set number
+]])
+

base/.config/nvim/init.vim

@@ -1,88 +0,0 @@
-call plug#begin('~/.vim/plug')
-
-Plug 'equalsraf/neovim-gui-shim'
-Plug 'neovim/nvim-lspconfig'
-Plug 'Pocco81/Catppuccino.nvim'
-Plug 'vim-scripts/bash-support.vim'
-Plug 'romgrk/barbar.nvim'
-Plug 'kyazdani42/nvim-tree.lua'
-Plug 'nvim-lua/plenary.nvim'
-Plug 'lewis6991/gitsigns.nvim'
-
-call plug#end()
-
-
-lua << EOF
-require'lspconfig'.rls.setup{}
-EOF
-
-lua << EOF
-local catppuccino = require('catppuccino')
-
-catppuccino.setup(
-    {
-        colorscheme = "catppuccino",
-        transparency = true,
-        integrations = {
-            treesitter = true,
-            native_lsp = {
-                enabled = true,
-                underlines = {
-                    errors = "underline",
-                    hints = "underline",
-                    warnings = "underline",
-                    information = "underline"
-                }
-            },
-            gitsigns = true,
-            nvimtree = {
-                enabled = true,
-                show_root = false
-            },
-            barbar = true
-        }
-    }
-)
-
-catppuccino.load()
-EOF
-
-" Barbar
-let bufferline = get(g:, 'bufferline', {})
-let bufferline.icons = v:false
-let bufferline.animation = v:false
-let bufferline.auto_hide = v:true
-
-" nvim-tree
-let g:nvim_tree_follow = 1
-let g:nvim_tree_auto_open = 1
-let g:nvim_tree_auto_close = 1
-let g:nvim_tree_show_icons = {
-            \ 'git': 0,
-            \ 'folders': 0,
-            \ 'files': 0,
-            \ 'folder_arrows': 0,
-            \ }
-
-nnoremap <silent> <A-1> :BufferGoto 1<CR>
-nnoremap <silent> <A-2> :BufferGoto 2<CR>
-nnoremap <silent> <A-3> :BufferGoto 3<CR>
-nnoremap <silent> <A-4> :BufferGoto 4<CR>
-nnoremap <silent> <A-5> :BufferGoto 5<CR>
-nnoremap <silent> <A-6> :BufferGoto 6<CR>
-nnoremap <silent> <A-7> :BufferGoto 7<CR>
-nnoremap <silent> <A-8> :BufferGoto 8<CR>
-nnoremap <silent> <A-9> :BufferGoto 9<CR>
-nnoremap <silent> <A-,> :BufferPrevious<CR>
-nnoremap <silent> <A-.> :BufferNext<CR>
-nnoremap <silent> <A-p> :BufferPin<CR>
-nnoremap <silent> <A-q> :BufferClose<CR>
-
-set nocompatible
-
-set sw=4 ts=4 sts=4 et
-syntax on
-autocmd FileType make set noexpandtab shiftwidth=8 tabstop=8 softtabstop=0
-set bs=indent,eol,start
-set ruler
-