neovin: Remove minimap and use a simplistic scrollbar

...with LSP integration, of course

nvim/.config/nvim/.gitignore

@@ -0,0 +1,2 @@
+plugin/
+!after/plugin/

nvim/.config/nvim/after/plugin/lsp.lua

@@ -0,0 +1,89 @@
+-- Custom LSP configuration
+-- This cannot be done in the config function from Packer
+-- because it somehow does not work well with make_client_capabilities()
+require("mason-lspconfig").setup({
+    ensure_installed = { "rust_analyzer" }
+})
+
+local opts = { noremap=true, silent=true }
+vim.keymap.set('n', '<space>e', vim.diagnostic.open_float, opts)
+vim.keymap.set('n', '[d', vim.diagnostic.goto_prev, opts)
+vim.keymap.set('n', ']d', vim.diagnostic.goto_next, opts)
+vim.keymap.set('n', '<space>q', vim.diagnostic.setloclist, opts)
+
+local cmp = require 'cmp'
+cmp.setup({
+    mapping = {
+        ['<C-d>'] = cmp.mapping.scroll_docs(-4),
+        ['<C-f>'] = cmp.mapping.scroll_docs(4),
+        ['<C-Space>'] = cmp.mapping.complete(),
+        ['<CR>'] = cmp.mapping.confirm {
+            behavior = cmp.ConfirmBehavior.Replace,
+            select = true,
+        },
+        ['<Tab>'] = cmp.mapping(function(fallback)
+            if cmp.visible() then
+                cmp.select_next_item()
+            else
+                fallback()
+            end
+        end, { 'i', 's' }),
+        ['<S-Tab>'] = cmp.mapping(function(fallback)
+            if cmp.visible() then
+                cmp.select_prev_item()
+            else
+                fallback()
+            end
+        end, { 'i', 's' }),
+    },
+    sources = {
+        { name = 'nvim_lsp' },
+    },
+})
+
+-- Rewrite LSP capabilities (to enable completion)
+local capabilities = require('cmp_nvim_lsp').update_capabilities(vim.lsp.protocol.make_client_capabilities())
+
+-- Use an on_attach function to only map the following keys
+-- after the language server attaches to the current buffer
+local on_attach = function(client, bufnr)
+    -- Mappings.
+    -- See `:help vim.lsp.*` for documentation on any of the below functions
+    local bufopts = { noremap=true, silent=true, buffer=bufnr }
+    vim.keymap.set('n', 'gD', vim.lsp.buf.declaration, bufopts)
+    vim.keymap.set('n', 'gd', vim.lsp.buf.definition, bufopts)
+    vim.keymap.set('n', 'K', vim.lsp.buf.hover, bufopts)
+    vim.keymap.set('n', 'gi', vim.lsp.buf.implementation, bufopts)
+    vim.keymap.set('n', '<C-k>', vim.lsp.buf.signature_help, bufopts)
+    vim.keymap.set('n', '<space>wa', vim.lsp.buf.add_workspace_folder, bufopts)
+    vim.keymap.set('n', '<space>wr', vim.lsp.buf.remove_workspace_folder, bufopts)
+    vim.keymap.set('n', '<space>wl', function()
+        print(vim.inspect(vim.lsp.buf.list_workspace_folders()))
+    end, bufopts)
+    vim.keymap.set('n', '<space>D', vim.lsp.buf.type_definition, bufopts)
+    vim.keymap.set('n', '<space>rn', vim.lsp.buf.rename, bufopts)
+    vim.keymap.set('n', '<space>ca', vim.lsp.buf.code_action, bufopts)
+    vim.keymap.set('n', 'gr', vim.lsp.buf.references, bufopts)
+    vim.keymap.set('n', '<space>f', vim.lsp.buf.formatting, bufopts)
+end
+
+require('lspconfig')['rust_analyzer'].setup({
+    on_attach = on_attach,
+    settings = {
+        ['rust_analyzer'] = {
+            cargo = {
+                autoreload = true,
+                buildScripts = { enable = true },
+            },
+            procMacro = {
+                enable = true,
+            },
+        },
+    },
+    capabilities = capabilities,
+})
+
+-- TODO: Set this to OFF when neovim supports it (0.8 release probably)
+-- rust_analyzer spits out spurious errors with build.rs outputs
+-- likely due to a race condition between the VFS initialization and the diagnostics
+vim.lsp.set_log_level("error")

nvim/.config/nvim/ginit.vim

@@ -0,0 +1,8 @@
+" Mouse
+set mouse=a
+
+" Set Editor Font
+GuiFont! FiraCode Nerd Font Mono:h10.5:l
+
+" Ligature
+GuiRenderLigatures 1

nvim/.config/nvim/init.vim

@@ -0,0 +1,57 @@
+" Packer plugins
+lua require('plugins')
+
+" Gruvbox Theme (colorscheme applied from plugins.lua)
+if has('termguicolors')
+  set termguicolors
+endif
+" For dark version.
+set background=dark
+" We need to apply this here too to make sure the startup components work
+colorscheme gruvbox
+
+" Miscellaneous boilerplate
+set nocompatible " Disable vi compatibility
+set ignorecase
+set cc=128        " 128 characters
+set noswapfile
+set backupdir=~/.cache/nvim
+set cursorline   " Highlight current line
+set mouse=a      " Mouse
+set nofixendofline
+set clipboard+=unnamedplus " System clipboard
+
+" Default indentation
+set softtabstop=4
+set tabstop=4
+set shiftwidth=4
+set expandtab
+set autoindent
+
+" Syntax highlighting
+set syntax=on
+
+let g:special_filetype_pattern = 'neo-tree\|toggleterm\|minimap'
+
+" Show line numbers on non-toolbar buffers
+fun! ShowNumberIfNecessary()
+    if &ft =~ g:special_filetype_pattern
+        return
+    endif
+    setlocal nu
+endfun
+autocmd BufEnter * call ShowNumberIfNecessary()
+
+" Terminal remapping
+lua << EOF
+function _G.set_terminal_keymaps()
+    local opts = {buffer = 0}
+    vim.keymap.set('t', '<esc>', [[<C-\><C-n>]], opts)
+    vim.keymap.set('t', 'jk', [[<C-\><C-n>]], opts)
+    vim.keymap.set('t', '<C-h>', [[<Cmd>wincmd h<CR>]], opts)
+    vim.keymap.set('t', '<C-j>', [[<Cmd>wincmd j<CR>]], opts)
+    vim.keymap.set('t', '<C-k>', [[<Cmd>wincmd k<CR>]], opts)
+    vim.keymap.set('t', '<C-l>', [[<Cmd>wincmd l<CR>]], opts)
+end
+EOF
+autocmd TermOpen term://* lua set_terminal_keymaps()

nvim/.config/nvim/lua/plugins.lua

@@ -0,0 +1,128 @@
+vim.cmd [[packadd packer.nvim]]
+
+return require('packer').startup(function(use)
+    -- Packer can manage itself
+    use 'wbthomason/packer.nvim'
+
+    -- LSP stuff
+    use {
+        "williamboman/mason.nvim",
+        "williamboman/mason-lspconfig.nvim",
+        "neovim/nvim-lspconfig",
+        "hrsh7th/nvim-cmp",
+        "hrsh7th/cmp-nvim-lsp",
+    }
+
+    -- Gruvbox theme
+    use {
+        "ellisonleao/gruvbox.nvim",
+        config = function()
+            require("gruvbox").setup({
+                bold = false,
+                italic = true,
+                strikethrough = true,
+                overrides = {
+                    Directory = { link = "GruvboxFg2" },
+                },
+            })
+            vim.cmd("colorscheme gruvbox")
+        end,
+    }
+
+    -- A way saner buffer closing implementation
+    use "ojroques/nvim-bufdel"
+
+    -- Indentation guide
+    use "lukas-reineke/indent-blankline.nvim"
+
+    -- Indentation autodetection
+    use {
+        "nmac427/guess-indent.nvim",
+        config = function()
+            require("guess-indent").setup()
+        end
+    }
+
+    -- Scrollbar
+    use {
+        "petertriho/nvim-scrollbar",
+        config = function()
+            require("scrollbar").setup()
+        end,
+    }
+
+    -- Directory tree
+    use {
+        "nvim-neo-tree/neo-tree.nvim",
+        branch = "v2.x",
+        requires = { 
+            "nvim-lua/plenary.nvim",
+            "kyazdani42/nvim-web-devicons",
+            "MunifTanjim/nui.nvim",
+        },
+        config = function()
+            require("neo-tree").setup({
+                window = {
+                    position = "left",
+                    width = 36,
+                },
+            })
+            require("neo-tree.sources.manager").show("filesystem")
+        end,
+    }
+
+    -- Tabs
+    use {
+        "akinsho/bufferline.nvim", tag = "v2.*", requires = "kyazdani42/nvim-web-devicons",
+        config = function() require("bufferline").setup({
+            options = {
+                close_command = "BufDel %d",
+                right_mouse_command = "BufDel %d",
+                offsets = {
+                    {
+                        filetype = "neo-tree",
+                        text = "Files",
+                        highlight = "Directory",
+                        text_align = "left",
+                    }
+                },
+                separator_style = "slant",
+            }
+        }) end,
+    }
+
+    -- Status line
+    use {
+        "nvim-lualine/lualine.nvim", requires = { 'kyazdani42/nvim-web-devicons', opt = true },
+        config = function() require("lualine").setup({
+            options = {
+                theme = "gruvbox",
+                disabled_filetypes = {
+                    statusline = { "neo-tree" },
+                },
+            },
+        }) end,
+    }
+
+    -- Terminal
+    use {
+        "akinsho/toggleterm.nvim", tag = "v2.*",
+        config = function() require("toggleterm").setup({
+            open_mapping = [[<c-\>]],
+            persist_size = false,
+            shade_terminals = false,
+            hide_numbers = false,
+            winbar = {
+                enabled = false,
+            },
+            on_open = function()
+                -- Toggle the neo-tree file view such that it is
+                -- always full height; This is a dirty workaround
+                local manager = require('neo-tree.sources.manager')
+                if manager.close('filesystem') then
+                    manager.show('filesystem')
+                end
+            end,
+        }) end,
+    }
+end)

vim/.vimrc

@@ -6,3 +6,5 @@ set shiftwidth=4 softtabstop=4 expandtab
 
 " In these files, use 2 spaces
 autocmd FileType sh setlocal shiftwidth=2 softtabstop=2
+
+set nofixeol