Git 修改 commit 的做者信息

問題

在公司和宿舍使用不一樣的 git 郵箱帳號，結果 commit 的時候忘記修改配置致使 commit 的我的名稱和郵箱都不對

解決方法

修改 git 配置

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

可是補救措施只對之後的 commit 起效, 若是想修改以前的做者信息，Github 給出了官方指南：Changing author info

修復 git 歷史提交信息

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

爲了修改 commit 的做者郵箱地址，你必須重寫整個 git 倉庫歷史

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： 這個操做會破壞你的倉庫歷史， 若是你和別人在協同開發這個倉庫，重寫已發佈的歷史記錄是一個很差的操做。建議只在緊急狀況操做

操做步驟：

• 打開 bash

• Create a fresh, bare clone of your repository: （新建一個全新的倉庫信息：)

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: (在終端複製並粘貼如下腳本，並將如下的變量修改成你須要的)

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

  腳本信息：

  #!/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 鍵來運行這個腳本

• Review the new Git history for errors.(校對新的 git 倉庫歷史）

• Push the corrected history to GitHub:（將修改後的倉庫歷史推到遠程）

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

• Clean up the temporary clone: (刪除這個倉庫)

  cd ..
  rm -rf repo.git