커밋 하나만 있을때 reset

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1

하나의 버전만 있는 경우(첫번째 commit의 경우)는 revert나 reset이 되지 않습니다.

첫번째 commit의 경우 아래 명령어를 통해 commit을 되돌릴 수 있습니다

$ git update-ref -d HEAD

이는 현재 head가 위치한 공간에서 관리되는 git 정보를 삭제하라는 명령어입니다.

예제는 아래와 같습니다.

mckang@P22009003-mckang MINGW64 /c/test_dir (master)
$ git status
On branch master

No commits yet

Untracked files:
  (use "git add <file>..." to include in what will be committed)
        test.txt

nothing added to commit but untracked files present (use "git add" to track)

mckang@P22009003-mckang MINGW64 /c/test_dir (master)
$ git add .
warning: LF will be replaced by CRLF in test.txt.
The file will have its original line endings in your working directory

mckang@P22009003-mckang MINGW64 /c/test_dir (master)
$ git commit -m "initial commit"
[master (root-commit) f619bf6] initial commit
 1 file changed, 1 insertion(+)
 create mode 100644 test.txt

mckang@P22009003-mckang MINGW64 /c/test_dir (master)
$ git status
On branch master
nothing to commit, working tree clean

mckang@P22009003-mckang MINGW64 /c/test_dir (master)
$ git update-ref -d HEAD

mckang@P22009003-mckang MINGW64 /c/test_dir (master)
$ git status
On branch master

No commits yet

Changes to be committed:
  (use "git rm --cached <file>..." to unstage)
        new file:   test.txt


mckang@P22009003-mckang MINGW64 /c/test_dir (master)
$ git add .

mckang@P22009003-mckang MINGW64 /c/test_dir (master)
$ git commit -m "modified commit"
[master (root-commit) 3a69354] modified commit
 1 file changed, 1 insertion(+)
 create mode 100644 test.txt

mckang@P22009003-mckang MINGW64 /c/test_dir (master)
$ git log
commit 3a693541c03284835cfb8ac04eb34c9417be2cca (HEAD -> master)
Author: Kang Minchul <tegongkang@gmail.com>
Date:   Fri Oct 29 15:23:38 2021 +0900

    modified commit

감사합니다