git问题-修改历史的 commit 的 user.email

装了新电脑，不小心提交了一个错误的email地址,需要把本地已经commit的内容修改掉。脚本如下：

#!/bin/sh

git filter-branch --env-filter '

an="$GIT_AUTHOR_NAME"
am="$GIT_AUTHOR_EMAIL"
cn="$GIT_COMMITTER_NAME"
cm="$GIT_COMMITTER_EMAIL"

if [ "$GIT_COMMITTER_EMAIL" = "[email protected]" ]
then
    cn="Your New Committer Name"
    cm="Your New Committer Email"
fi
if [ "$GIT_AUTHOR_EMAIL" = "[email protected]" ]
then
    an="Your New Author Name"
    am="Your New Author Email"
fi

export GIT_AUTHOR_NAME="$an"
export GIT_AUTHOR_EMAIL="$am"
export GIT_COMMITTER_NAME="$cn"
export GIT_COMMITTER_EMAIL="$cm"
'

注意：这个操作会将你的 commit 历史完全破坏掉，所以操作的时候需要谨慎

参考资料：

• Change Author Info: https://help.github.com/articles/changing-author-info