Git 修改 commit 的做者信息

问题

在公司和宿舍使用不一样的 git 邮箱帐号，结果 commit 的时候忘记修改配置致使 commit 的我的名称和邮箱都不对

解决方法

修改 git 配置

git config --global user.email "youremail@googl.com"
git config --global user.name "your name"

可是补救措施只对之后的 commit 起效, 若是想修改以前的做者信息，Github 给出了官方指南：Changing author info

修复 git 历史提交信息

To change the name and/or email address recorded in existing commits, you must rewrite the entire history of your Git repository.

为了修改 commit 的做者邮箱地址，你必须重写整个 git 仓库历史

Warning: This action is destructive to your repository's history. If you're collaborating on a repository with others, it's considered bad practice to rewrite published history. You should only do this in an emergency.

警告： 这个操做会破坏你的仓库历史， 若是你和别人在协同开发这个仓库，重写已发布的历史记录是一个很差的操做。建议只在紧急状况操做

操做步骤：

• 打开 bash

• Create a fresh, bare clone of your repository: （新建一个全新的仓库信息：)

git clone --bare https://github.com/user/repo.git
    cd repo.git

• Copy and paste the script, replacing the following variables based on the information you gathered: (在终端复制并粘贴如下脚本，并将如下的变量修改成你须要的)

  **OLD_EMAIL**
  **CORRECT_NAME**
  **CORRECT_EMAIL**

  脚本信息：

  #!/bin/sh
  
  git filter-branch --env-filter '
  
  OLD_EMAIL="your-old-email@example.com"
  CORRECT_NAME="Your Correct Name"
  CORRECT_EMAIL="your-correct-email@example.com"
  
  if [ "$GIT_COMMITTER_EMAIL" = "$OLD_EMAIL" ]
  then
      export GIT_COMMITTER_NAME="$CORRECT_NAME"
      export GIT_COMMITTER_EMAIL="$CORRECT_EMAIL"
  fi
  if [ "$GIT_AUTHOR_EMAIL" = "$OLD_EMAIL" ]
  then
      export GIT_AUTHOR_NAME="$CORRECT_NAME"
      export GIT_AUTHOR_EMAIL="$CORRECT_EMAIL"
  fi
  ' --tag-name-filter cat -- --branches --tags

• Press Enter to run the script.（按下 enter 键来运行这个脚本

• Review the new Git history for errors.(校对新的 git 仓库历史）

• Push the corrected history to GitHub:（将修改后的仓库历史推到远程）

  git push --force --tags origin 'refs/heads/*'

• Clean up the temporary clone: (删除这个仓库)

  cd ..
  rm -rf repo.git