statusline: feline: Use default git provider

now it handles dirs too

092442db0c

lua/plugins/configs/statusline.lua

@@ -225,61 +225,12 @@ components.active[3][1] = {
 }
 
 components.active[3][2] = {
-   -- taken from: https://github.com/hoob3rt/lualine.nvim/blob/master/lua/lualine/components/branch.lua
-   provider = function()
-      local git_branch = ""
-
-      -- first try with gitsigns
-      local gs_dict = vim.b.gitsigns_status_dict
-      if gs_dict then
-         git_branch = (gs_dict.head and #gs_dict.head > 0 and gs_dict.head) or git_branch
-      else
-         -- path seperator
-         local branch_sep = package.config:sub(1, 1)
-         -- get file dir so we can search from that dir
-         local file_dir = vim.fn.expand "%:p:h" .. ";"
-         -- find .git/ folder genaral case
-         local git_dir = vim.fn.finddir(".git", file_dir)
-         -- find .git file in case of submodules or any other case git dir is in
-         -- any other place than .git/
-         local git_file = vim.fn.findfile(".git", file_dir)
-         -- for some weird reason findfile gives relative path so expand it to fullpath
-         if #git_file > 0 then
-            git_file = vim.fn.fnamemodify(git_file, ":p")
-         end
-         if #git_file > #git_dir then
-            -- separate git-dir or submodule is used
-            local file = io.open(git_file)
-            git_dir = file:read()
-            git_dir = git_dir:match "gitdir: (.+)$"
-            file:close()
-            -- submodule / relative file path
-            if git_dir:sub(1, 1) ~= branch_sep and not git_dir:match "^%a:.*$" then
-               git_dir = git_file:match "(.*).git" .. git_dir
-            end
-         end
-
-         if #git_dir > 0 then
-            local head_file = git_dir .. branch_sep .. "HEAD"
-            local f_head = io.open(head_file)
-            if f_head then
-               local HEAD = f_head:read()
-               f_head:close()
-               local branch = HEAD:match "ref: refs/heads/(.+)$"
-               if branch then
-                  git_branch = branch
-               else
-                  git_branch = HEAD:sub(1, 6)
-               end
-            end
-         end
-      end
-      return (git_branch ~= "" and "  " .. git_branch) or git_branch
-   end,
+   provider = "git_branch",
    hl = {
       fg = colors.grey_fg2,
       bg = colors.statusline_bg,
    },
+   icon = "",
 }
 
 components.active[3][3] = {