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git-filter-repo NameError: name 'git' is not defined

Posted at

事象 : Scoopでインストールしたgit-filter-repoが動かない

  • 環境
    • Windows10 Pro バージョン21H1
    • git version 2.35.1.windows.1
    • Python 3.8.5
    • pip 20.2.4

git-filter-repoを使おうと思い「Scoopをインストール」して「Scoopでgit-filter-repoをインストール」しました。
しかし、エラーになって動きません。

# PowerShellに切替える
$ powershell
Windows PowerShell
Copyright (C) Microsoft Corporation. All rights reserved.

新しいクロスプラットフォームの PowerShell をお試しください https://aka.ms/pscore6

# セキュリティポリシーが初期値(Restricted)場合は、「RemoteSigned」へ変更する
PS C:\path\to> Get-ExecutionPolicy
Restricted     
PS C:\path\to> Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope Process

# Scoopをインストールする
PS C:\path\to> Invoke-Expression (New-Object System.Net.WebClient).DownloadString('https://get.scoop.sh')
Initializing...
Downloading...
Extracting...
Creating shim...
Adding ~\scoop\shims to your path.
Scoop was installed successfully!
Type 'scoop help' for instructions.

# 常用しているBashに切替える
PS C:\path\to> bash

# Scoopでgit-filter-repoをインストール
$ scoop install git-filter-repo
Installing 'git-filter-repo' (2.34.0) [64bit]
Downloading https://github.com/newren/git-filter-repo/archive/v2.34.0.zip (-1 B)...

Checking hash of v2.34.0.zip ... ok.
Extracting v2.34.0.zip ... done.
Running pre-install script...
Linking ~\scoop\apps\git-filter-repo\current => ~\scoop\apps\git-filter-repo\2.34.0
Creating shim for 'git-filter-repo'.
Running post-install script...
'git-filter-repo' (2.34.0) was installed successfully!
'git-filter-repo' suggests installing 'python'.

# しかし、動かない・・・・
$ git filter-repo -h
Traceback (most recent call last):
  File "C:\Users\chovin\scoop\apps\git-filter-repo\current\git_filter_repo.py", line 1, in <module>
    git-filter-repo
NameError: name 'git' is not defined

原因 : 不明

いろいろ調べても試しても状況は変わりらず、原因は分かりませんでした。

  1. 試したこと
    1. scoop/apps/git-filter-repo/2.34.0/git-filter-repoの1行目のシェ版を#!/usr/bin/env python3から#!/usr/bin/env pythonに変える
    2. ターミナルのシェルをBashではなくPowerShellにしてから、Scoopでgit-filter-repoをインストールする
    3. 既存のGitとは別にScoopでGitをインストールする
    4. 既存のPythonとは別にScoopでPythonをインストールする

対応 : pipでgit-filter-repoをインストールする

git-filter-repoのINSTALL.mdを見て深く考えずに「Scoop」を使ってインストールしました。

This list covers at least Windows (Scoop), Mac OS X (Homebrew), and Linux (most the rest). Note that I do not curate this list (and have no interest in doing so); https://repology.org tracks who packages these versions.
git-filter-repo/INSTALL.md

しかし、どうせPythonが必要になるのであればpipを使えばいいことに思い当たりました。この思い付きが功を奏しました。
参考 : git-filter-repo · PyPI

# Scoopのgit-filter-repoをアンインストールする
$ scoop uninstall git-filter-repo
Uninstalling 'git-filter-repo' (2.34.0).
Removing shim 'git-filter-repo'.
Removing shim 'git-filter-repo.cmd'.
Unlinking ~\scoop\apps\git-filter-repo\current
'git-filter-repo' was uninstalled.

# Scoop自体もアンインストールする
$ scoop uninstall scoop
WARN  This will uninstall Scoop and all the programs that have been installed with Scoop!
Are you sure? (yN): y
Removing ~\scoop\shims from your path.
Scoop has been uninstalled.

# pipでgit-filter-repoをインストールする
$ pip install git-filter-repo
Collecting git-filter-repo
  Downloading git_filter_repo-2.34.0-py2.py3-none-any.whl (99 kB)
     |████████████████████████████████| 99 kB 1.3 MB/s 
Installing collected packages: git-filter-repo
Successfully installed git-filter-repo-2.34.0
WARNING: You are using pip version 20.2.4; however, version 22.0.4 is available.
You should consider upgrading via the 'c:\apps\python38\python.exe -m pip install --upgrade pip' command.

# 動いた!
$ git filter-repo -h
Rewrite (or analyze) repository history

    git-filter-repo destructively rewrites history (unless --analyze or
    --dry-run are given) according to specified rules.  It refuses to do any
    rewriting unless either run from a clean fresh clone, or --force was
    given.
#...省略...
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