Move Nix files into a nix directory

Move everything from `config` to the root level.

nvim/plugin/completion.lua

@@ -0,0 +1,155 @@
+local cmp = require "cmp"
+local ls = require "luasnip"
+
+vim.opt.shortmess:append "c"
+
+cmp.setup {
+  snippet = {
+    expand = function(args)
+      ls.lsp_expand(args.body)
+    end,
+  },
+
+  mapping = cmp.mapping.preset.insert {
+    ["<C-e>"] = cmp.mapping.close(),
+
+    ["<C-h>"] = cmp.mapping(function()
+      if ls.locally_jumpable(-1) then
+        ls.jump(-1)
+      end
+    end, { "i", "s" }),
+
+    ["<C-l>"] = cmp.mapping(function()
+      if ls.expand_or_locally_jumpable() then
+        ls.expand_or_jump()
+      end
+    end, { "i", "s" }),
+
+    ["<C-y>"] = cmp.mapping.confirm { select = true },
+    ["<tab>"] = cmp.config.disable,
+  },
+
+  sources = {
+    { name = "nvim_lsp" },
+    { name = "nvim_lua" },
+    { name = "luasnip" },
+    { name = "buffer" },
+    { name = "calc" },
+  },
+
+  sorting = {
+    comparators = {
+      cmp.config.compare.offset,
+      cmp.config.compare.exact,
+      cmp.config.compare.score,
+      cmp.config.compare.kind,
+      cmp.config.compare.sort_text,
+      cmp.config.compare.length,
+      cmp.config.compare.order,
+    },
+  },
+
+  formatting = {
+    format = require("lspkind").cmp_format {
+      with_text = true,
+      menu = {
+        buffer = "[buf]",
+        cmp_tabnine = "[tn]",
+        luasnip = "[snip]",
+        nvim_lsp = "[lsp]",
+        nvim_lua = "[lua]",
+        path = "[path]",
+      },
+    },
+  },
+
+  experimental = {
+    ghost_text = true,
+    native_menu = false,
+  },
+}
+
+cmp.setup.filetype({ "mysql", "sql" }, {
+  sources = {
+    { name = "vim-dadbod-completion" },
+    { name = "buffer" },
+  },
+})
+
+local snippet = ls.snippet
+local i = ls.insert_node
+local t = ls.text_node
+
+local shortcut = function(val)
+  if type(val) == "string" then
+    return { t { val }, i(0) }
+  end
+
+  if type(val) == "table" then
+    for k, v in ipairs(val) do
+      if type(v) == "string" then
+        val[k] = t { v }
+      end
+    end
+  end
+
+  return val
+end
+
+local make = function(tbl)
+  local result = {}
+  for k, v in pairs(tbl) do
+    table.insert(result, (snippet({ trig = k, desc = v.desc }, shortcut(v))))
+  end
+
+  return result
+end
+
+local snippets = {}
+
+for _, ft_path in ipairs(vim.api.nvim_get_runtime_file("lua/opdavies/snippets/ft/*.lua", true)) do
+  local ft = vim.fn.fnamemodify(ft_path, ":t:r")
+  snippets[ft] = make(loadfile(ft_path)())
+
+  ls.add_snippets(ft, snippets[ft])
+end
+
+ls.add_snippets("js", snippets.javascript)
+ls.add_snippets("typescript", snippets.javascript)
+ls.add_snippets("vue", snippets.javascript)
+
+-- Include any snippets to use in presentations.
+for _, ft_path in ipairs(vim.api.nvim_get_runtime_file("lua/opdavies/snippets/talks/*.lua", true)) do
+  loadfile(ft_path)()
+end
+
+require("luasnip.loaders.from_vscode").lazy_load()
+
+ls.config.set_config {
+  enable_autosnippets = true,
+  history = true,
+  updateevents = "TextChanged,TextChangedI",
+}
+
+-- Expand the current item or just to the next item within the snippet.
+vim.keymap.set({ "i", "s" }, "<c-k>", function()
+  if ls.expand_or_jumpable() then
+    ls.expand_or_jump()
+  end
+end, { silent = true })
+
+-- Jump backwards.
+vim.keymap.set({ "i", "s" }, "<c-j>", function()
+  if ls.jumpable(-1) then
+    ls.jump(-1)
+  end
+end, { silent = true })
+
+-- Select within a list of options.
+vim.keymap.set("i", "<c-l>", function()
+  if ls.choice_active() then
+    ls.change_choice(1)
+  end
+end)
+
+vim.keymap.set("n", "<leader><leader>s", "<cmd>source ~/Code/opdavies.nvim/after/plugin/luasnip.lua<CR>")