feat: Adds shorten_path, show_all_buffers opts and fixes alignment (buffers builtin) (#32)

README.md

@@ -233,6 +233,15 @@ require'telescope.builtin'.command_history{}
 
 Search the vim command history.
 
+```lua
+require'telescope.builtin'.buffers{
+    -- Optional
+    -- show_all_buffers = true -- Show unloaded buffers aswell
+}
+```
+
+Search on vim buffers list.
+
 #### LSP
 
 ```lua

lua/telescope/actions.lua

@@ -83,6 +83,7 @@ local function goto_file_selection(prompt_bufnr, command)
     -- TODO: Sometimes we open something with missing line numbers and stuff...
     if entry_bufnr then
       a.nvim_win_set_buf(original_win_id, entry_bufnr)
+      vim.api.nvim_command("doautocmd filetypedetect BufRead " .. vim.fn.fnameescape(filename))
     else
       vim.cmd(string.format(":%s %s", command, filename))
 

lua/telescope/builtin.lua

@@ -404,13 +404,19 @@ builtin.fd = builtin.find_files
 builtin.buffers = function(opts)
   opts = opts or {}
 
-  local buffers =  filter(function(b)
+  local buffers = filter(function(b)
     return
-      vim.api.nvim_buf_is_loaded(b)
+      (opts.show_all_buffers
+      or vim.api.nvim_buf_is_loaded(b))
       and 1 == vim.fn.buflisted(b)
 
   end, vim.api.nvim_list_bufs())
 
+  if not opts.bufnr_width then
+    local max_bufnr = math.max(unpack(buffers))
+    opts.bufnr_width = #tostring(max_bufnr)
+  end
+
   pickers.new(opts, {
     prompt    = 'Buffers',
     finder    = finders.new_table {

lua/telescope/make_entry.lua

@@ -180,6 +180,8 @@ function make_entry.gen_from_quickfix(opts)
 end
 
 function make_entry.gen_from_buffer(opts)
+  opts = opts or {}
+
   local get_position = function(entry)
     local tabpage_wins = vim.api.nvim_tabpage_list_wins(0)
     for k, v in ipairs(tabpage_wins) do
@@ -191,6 +193,18 @@ function make_entry.gen_from_buffer(opts)
     return {}
   end
 
+  local make_display = function(entry)
+    local display_bufname
+    if opts.shorten_path then
+      display_bufname = utils.path_shorten(entry.filename)
+    else
+      display_bufname = entry.filename
+    end
+
+    return string.format("%" .. opts.bufnr_width .. "d : %s",
+                         entry.bufnr, display_bufname)
+  end
+
   return function(entry)
     local bufnr_str = tostring(entry)
     local bufname = vim.api.nvim_buf_get_name(entry)
@@ -206,7 +220,7 @@ function make_entry.gen_from_buffer(opts)
 
       value = bufname,
       ordinal = bufnr_str .. " : " .. bufname,
-      display = bufnr_str .. " : " .. bufname,
+      display = make_display,
 
       bufnr = entry,
       filename = bufname,