feat: Add status, better debug, and some associated refactors

* [WIP]: Mon 28 Sep 2020 01:08:24 PM EDT

* add much much better tracking. so much less hax

* status updates, oneshot job updates, etc.

* remove temp function

* add status function

* asdfasdfasdf

lua/telescope/config.lua

@@ -12,6 +12,8 @@ local function first_non_null(...)
   end
 end
 
+local actions = require('telescope.actions')
+
 -- TODO: Add other major configuration points here.
 -- selection_strategy
 
@@ -42,6 +44,8 @@ function config.set_defaults(defaults)
   set("border", {})
   set("borderchars", { '─', '│', '─', '│', '╭', '╮', '╯', '╰'})
 
+  set("get_status_text", function(self) return string.format("%s / %s", self.stats.processed - self.stats.filtered, self.stats.processed) end)
+
   -- Builtin configuration
 
   -- List that will be executed.
@@ -51,6 +55,50 @@ function config.set_defaults(defaults)
   -- TODO: Shortenpath
   --    Decide how to propagate that to all the opts everywhere.
 
+  -- TODO: Add motions to keybindings
+  -- TODO: Add relative line numbers?
+  set("default_mappings", {
+    i = {
+      ["<C-n>"] = actions.move_selection_next,
+      ["<C-p>"] = actions.move_selection_previous,
+
+      ["<C-c>"] = actions.close,
+
+      ["<Down>"] = actions.move_selection_next,
+      ["<Up>"] = actions.move_selection_previous,
+
+      ["<CR>"] = actions.goto_file_selection_edit,
+      ["<C-x>"] = actions.goto_file_selection_split,
+      ["<C-v>"] = actions.goto_file_selection_vsplit,
+      ["<C-t>"] = actions.goto_file_selection_tabedit,
+
+      ["<C-u>"] = actions.preview_scrolling_up,
+      ["<C-d>"] = actions.preview_scrolling_down,
+
+      -- TODO: When we implement multi-select, you can turn this back on :)
+      -- ["<Tab>"] = actions.add_selection,
+    },
+
+    n = {
+      ["<esc>"] = actions.close,
+      ["<CR>"] = actions.goto_file_selection_edit,
+      ["<C-x>"] = actions.goto_file_selection_split,
+      ["<C-v>"] = actions.goto_file_selection_vsplit,
+      ["<C-t>"] = actions.goto_file_selection_tabedit,
+
+      -- TODO: This would be weird if we switch the ordering.
+      ["j"] = actions.move_selection_next,
+      ["k"] = actions.move_selection_previous,
+
+      ["<Down>"] = actions.move_selection_next,
+      ["<Up>"] = actions.move_selection_previous,
+
+      ["<C-u>"] = actions.preview_scrolling_up,
+      ["<C-d>"] = actions.preview_scrolling_down,
+    },
+  })
+
+
   -- NOT STABLE. DO NOT USE
   set("horizontal_config", {
     get_preview_width = function(columns, _)