fix(git): show status for git submodules (#356)

Need to compute the git toplevel directory upon changing directories
since calling `git status` inside a git submodule will give the status
relative to the toplevel directory of the submodule, not the parent
toplevel directory. This was causing a bug with bad paths being created
for git status changes in submodules.

closes #353

lua/telescope/_extensions/file_browser/finders.lua

@@ -116,8 +116,11 @@ fb_finders.browse_files = function(opts)
 
  local git_file_status = {}
  if opts.git_status then
- local git_status = Job:new({ cwd = opts.path, command = "git", args = git_args() }):sync()
- git_file_status = fb_git.parse_status_output(git_status, opts.git_root)
+ local git_root = fb_git.find_root(opts.path)
+ if git_root ~= nil then
+ local git_status = Job:new({ cwd = opts.path, command = "git", args = git_args() }):sync()
+ git_file_status = fb_git.parse_status_output(git_status, git_root)
+ end
  end
  if opts.path ~= os_sep and not opts.hide_parent_dir then
  table.insert(data, 1, parent_path)
@@ -192,11 +195,11 @@ fb_finders.finder = function(opts)
  hidden = vim.tbl_extend("keep", hidden, hidden_default)
  end
 
- local git_root = Job:new({ command = "git", args = { "rev-parse", "--show-toplevel" } }):sync()[1]
+ local cwd = opts.cwd_to_path and opts.path or opts.cwd
 
  return setmetatable({
  cwd_to_path = opts.cwd_to_path,
- cwd = opts.cwd_to_path and opts.path or opts.cwd, -- nvim cwd
+ cwd = cwd,
  path = vim.F.if_nil(opts.path, opts.cwd), -- current path for file browser
  add_dirs = vim.F.if_nil(opts.add_dirs, true),
  hidden = hidden,
@@ -211,8 +214,7 @@ fb_finders.finder = function(opts)
  select_buffer = vim.F.if_nil(opts.select_buffer, false),
  hide_parent_dir = vim.F.if_nil(opts.hide_parent_dir, false),
  collapse_dirs = vim.F.if_nil(opts.collapse_dirs, false),
- git_status = vim.F.if_nil(opts.git_status, git_root ~= nil),
- git_root = git_root,
+ git_status = vim.F.if_nil(opts.git_status, fb_git.find_root(cwd) ~= nil),
  -- ensure we forward make_entry opts adequately
  entry_maker = vim.F.if_nil(opts.entry_maker, function(local_opts)
  return fb_make_entry(vim.tbl_extend("force", opts, local_opts))

lua/telescope/_extensions/file_browser/git.lua

@@ -1,7 +1,14 @@
 local Path = require "plenary.path"
+local Job = require "plenary.job"
 
 local M = {}
 
+---@param cwd string?
+---@return string?
+M.find_root = function(cwd)
+ return Job:new({ cwd = cwd, command = "git", args = { "rev-parse", "--show-toplevel" } }):sync()[1]
+end
+
 -- icon defaults are taken from Telescope git_status icons
 local icon_defaults = {
  added = "+",