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git filter-repoってなんぞ

Posted at

ある日、いつものようにgitで歴史改竄をしようとしたらこんな警告文が…

WARNING: git-filter-branch has a glut of gotchas generating mangled history
         rewrites.  Hit Ctrl-C before proceeding to abort, then use an
         alternative filtering tool such as 'git filter-repo'
         (https://github.com/newren/git-filter-repo/) instead.  See the
         filter-branch manual page for more details; to squelch this warning,
         set FILTER_BRANCH_SQUELCH_WARNING=1.

要するにgit filter-branchが新しくなんかいい感じになったgit filter-repoがあるらしいです。

インストール

デフォルトではインストールされていないので、追加でインストール作業が必要です。
Homebrewだとこんな感じ。それ以外はこちらを見てください

brew install git-filter-repo

(Windowsはpipからインストールするしかないのか…)

使い方

マニュアルはこちら。オプションはgit filter-branchよりわかりやすくなってますね。

フォルダ移動
git filter-repo --to-subdirectory-filter my-module
src以下だけ残す
git filter-repo --path src/
ReadMe.mdだけ消す
git filter-repo --path ReadMe.md --invert-paths
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