Using git-status to tell if it's "nothing-to-commit" status

git-status-to-check-nothing-to-commit

$ ls
foobar.txt  hoge.txt  piyo.txt
$ git status
ブランチ main
Changes not staged for commit:
  (use "git add <file>..." to update what will be committed)
  (use "git restore <file>..." to discard changes in working directory)
        modified:   hoge.txt

追跡されていないファイル:
  (use "git add <file>..." to include in what will be committed)
        piyo.txt

no changes added to commit (use "git add" and/or "git commit -a")
$ git status --porcelain
 M hoge.txt
?? piyo.txt
$ git status --porcelain | grep '^[MTADRCU]' | wc -l
0
$ git add hoge.txt
$ git status --porcelain
M  hoge.txt
?? piyo.txt
$ git status --porcelain | grep '^[MTADRCU]' | wc -l
1