[Git] how to remove file and commit from history(如何移除 commit 歷史紀錄)

今天在 commit 程式碼到 github 網站,不小心把 Plurk 帳號密碼給 commit 上去,發生這種事情,所以趕快上網查了一下如何移除 commit 歷史紀錄: 假設我們的 commit tree 如下:

R–A–B–C–D–E–HEAD 接下來要移除 B 跟 C 的 commit tree,變成

R–A–D’–E–HEAD 有兩種方式可以移除 B & C

# detach head and move to D commit
git checkout 

# move HEAD to A, but leave the index and working tree as for D
git reset --soft 

# Redo the D commit re-using the commit message, but now on top of A
git commit -C 

# Re-apply everything from the old D onwards onto this new place 
git rebase --onto HEAD  master

# push it
git push --force
另一種方法是利用 cherry-pick 方式
git rebase --hard 
git cherry-pick 
git cherry-pick 
這會直接忽略 B 跟 C 的 history,詳細資料可以查詢 git help cherry-pick 或者是 git help rebase 參考:

Git: removing selected commits from repository Git: how to remove file and commit from history Re: ! [rejected] master -> master (non-fast forward)

See also