Start converting to Lua

init.lua

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+local vimrc_git = os.getenv("HOME") .. "/src/vimrc" 
+
+vim.cmd("source " .. vimrc_git .. "/plug.vim")
+vim.cmd("source " .. vimrc_git .. "/airline.vim")
+vim.cmd("source " .. vimrc_git .. "/syntastic.vim")
+vim.cmd("source " .. vimrc_git .. "/fzf.vim")
+vim.cmd("source " .. vimrc_git .. "/lsp.vim")
+vim.cmd("source " .. vimrc_git .. "/mapping.vim")
+vim.cmd("source " .. vimrc_git .. "/jsonnet.vim")
+vim.cmd("source " .. vimrc_git .. "/nerdtree.vim")
+vim.cmd("source " .. vimrc_git .. "/wiki.vim")
+
+-- set up a line number on the current line but relative above and below to
+-- help with motion commands
+vim.opt.number = true
+vim.opt.relativenumber = true
+
+-- even with the nice space/tab autodetect, prefer 4 for tab stops but let file
+-- type specifics override (for instance a setting of 2 for markdown
+vim.opt.tabstop = 4
+-- default to folding on syntax
+vim.opt.foldmethod = "syntax"
+-- disable automatic line breaks, rely on visual wrapping instead
+vim.opt.textwidth = 0
+-- make white space visible, where that matters
+vim.opt.list = true
+
+local function nolist()
+        vim.opt.list = false
+end
+
+-- make white space invisible only in help text
+vim.api.nvim_create_autocmd("FileType", {
+        pattern = "help",
+        callback = nolist,
+})
+-- set up folding preferences
+vim.opt.fde = "1"
+-- vim's spelling is smart enough for code, to only check comments
+vim.opt.spell = true
+-- add a hint for long lines
+vim.opt.colorcolumn = "120"
+-- default to expanding tabs, I'm not insane
+vim.opt.expandtab = true
+
+-- change buffer behaviors to no longer require changes when hiding a buffer
+vim.opt.hidden = true
+
+-- look for vimrc in the current director as well as $MYVIMRC
+vim.opt.exrc = true
+-- make looking for local changes secure
+vim.opt.secure = true
+-- more secure
+vim.opt.modelines = 0
+-- preserve some context
+vim.opt.scrolloff = 3
+-- make the cursor a bit easier to follows
+vim.opt.cursorline = true
+-- make search work a bit more like tab completion in bash
+vim.opt.incsearch = true
+vim.opt.wildmode = "longest:full"
+vim.opt. wildmenu = true
+-- line break handling
+vim.opt.linebreak = true
+vim.opt.showbreak = "+"
+-- always on status line
+vim.opt.laststatus = 2
+
+-- let backspace work more naturally
+vim.opt.backspace = "start,indent,eol"
+-- favor modern encoding
+vim.opt.enc = "utf-8"
+-- more readable config for list mode
+vim.opt.listchars = {nbsp = '¬', tab = '»·', trail =  '·'}
+-- smarter handling of case during search
+vim.opt.ignorecase = true
+vim.opt.smartcase = true
+-- centralize swap to have backup without clutter
+vim.opt.directory = os.getenv("HOME") .. "/.var/nvim/swp//"
+-- and undo
+vim.opt.undofile = true
+vim.opt.undodir = os.getenv("HOME") .. "/.nvim/undodir"
+-- make pastemode more accessible
+vim.opt.pastetoggle = "<F2>"
+
+-- save when moving away
+--au FocusLost * :wa
+
+-- make sure to set TERM to xterm-256color in terminal program or app
+vim.cmd("colorscheme breezy")
+vim.opt.background = "light"
+vim.opt.termguicolors = true
+
+-- ensure autoread works, to detect file changes outside the editor
+vim.opt.autoread = true
+-- au CursorHold * checktime
+
+-- for gui, make it easier to tell different instances apart
+vim.opt.title = true
+
+-- keep nvim from resetting font back to default from terminal config
+vim.opt.guicursor = nil
+
+local guiopts = vim.opt.guioptions
+guiopts = guiopts:gsub("r", "")
+guiopts = guiopts:gsub("b", "")
+guiopts = guiopts:gsub("T", "")
+guiopts = guiopts:gsub("m", "")
+
+vim.opt.guioptions = guiopts
+
+vim.opt.mouse = "nv"
+
+vim.opt.gfn = "FiraCode Nerd Font Mono:h12"
+-- from https://stackoverflow.com/a/51424640
+-- let s:fontsize = 14
+-- function! AdjustFontSize(amount)
+--   let s:fontsize = s:fontsize+a:amount
+--   :execute --set gfn=FiraCode\\ Nerd\\ Font\\ Mono:h" . s:fontsize
+-- endfunction
+-- 
+-- noremap <C-Up> :call AdjustFontSize(1)<CR>
+-- noremap <C-Down> :call AdjustFontSize(-1)<CR>
+-- inoremap <C-Up> <Esc>:call AdjustFontSize(1)<CR>a
+-- inoremap <C-Down> <Esc>:call AdjustFontSize(-1)<CR>a
+
+require('nvim-projectconfig').setup({autocmd=true})
+require("trouble").setup {
+  -- your configuration comes here
+  -- or leave it empty to use the default settings
+  -- refer to the configuration section below
+}