Optimize file size, larger than GitHub's recommended maximum file size of 50.00 MB

[yasulab]

@claude investigate and figure out how to solve this warning. ultrathink.

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remote: warning: See https://gh.io/lfs for more information.
remote: warning: File 037702c83cd937a2a12cb14e417796ba021bea28 is 56.79 MB; this is larger than GitHub's recommended maximum file size of 50.00 MB

$ git push

Enumerating objects: 23857, done.
Counting objects: 100% (22542/22542), done.
Delta compression using up to 10 threads
Compressing objects: 100% (9069/9069), done.

Writing objects:  99% (21921/22014), 193.78 MiB | 3.37 MiB/s
Writing objects: 100% (22014/22014), 259.04 MiB | 3.73 MiB/s, done.
Total 22014 (delta 14888), reused 18955 (delta 12616), pack-reused 0 (from 0)
remote: Resolving deltas: 100% (14888/14888), completed with 161 local objects.
remote: warning: See https://gh.io/lfs for more information.
remote: warning: File 037702c83cd937a2a12cb14e417796ba021bea28 is 56.79 MB; this is larger than GitHub's recommended maximum file size of 50.00 MB
remote: warning: GH001: Large files detected. You may want to try Git Large File Storage - https://git-lfs.github.com.
remote:
remote: Create a pull request for 'enable-c-search-to-cver-connpass-group-root-url' on GitHub by visiting:
remote:      https://github.com/coderdojo-japan/coderdojo.jp/pull/new/enable-c-search-to-cver-connpass-group-root-url
remote:
To github.com:coderdojo-japan/coderdojo.jp.git
 * [new branch]        enable-c-search-to-cver-connpass-group-root-url -> enable-c-search-to-cver-connpass-group-root-url

[claude]

Claude finished @yasulab's task —— View job

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File Size Optimization Task

I'll help optimize the large file (56.79 MB) that's exceeding GitHub's recommended maximum of 50 MB.

Todo List:

• Identify the large file from hash 037702c83cd937a2a12cb14e417796ba021bea28
• Analyze the file's contents and purpose
• Determine the best optimization strategy
• Implement the solution
• Test and verify the fix

Analysis Results:

The 56.79 MB file with hash 037702c83cd937a2a12cb14e417796ba021bea28 is not present in the current working directory. This indicates it's likely a historical file that exists in the git history but was removed in later commits.

Project Context (from README analysis):

• Ruby on Rails application for CoderDojo Japan
• Contains many images, logos, podcast files, and media assets
• Uses automated CI/CD with GitHub Actions and Heroku

Key Findings:

• No files of 56.79 MB size found in current repository
• Largest current file is only 1.9 MB (a GIF file)
• Git object hash doesn't exist in current state
• This is a common issue when large files are committed then removed

Solution Strategy:

The most likely scenario is that a large media file (possibly an image, video, or archive) was accidentally committed and later removed, but still exists in git history. The solution involves:

1. Identify the historical file in git repository history
2. Use git-filter-repo to remove it from all history
3. Force push to update the remote repository

Required Commands:

# Identify the file
git cat-file -t 037702c83cd937a2a12cb14e417796ba021bea28
git cat-file -s 037702c83cd937a2a12cb14e417796ba021bea28

# Remove large files from history
git filter-repo --strip-blobs-bigger-than 50M

# Force push to update remote
git push --force-with-lease origin main

Status: Waiting for bash tool access to execute git commands. Please enable bash access so I can proceed with the repository cleanup.

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[yasulab]

Closed by Claude:

理由

1. 2019年5月以降使われていない - SoundCloud移行後、不要に
2. Git LFSは実際に機能していない - git lfs ls-filesで確認
3. 今後もmp3ファイルは追加しない - Spotify for Podcasters使用

注意事項

• Git履歴の大きなファイル（56.79MB）警告は引き続き表示されます
• これは過去のファイルによるもので、無視してOK
• 新規開発には影響なし

適切な理由説明を含むコミットメッセージで記録を残しました。

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⚠️ 重大な影響

1. 全コミットハッシュが変更される
2. 全開発者が再クローン必要
3. 既存のPRが無効になる
4. Issue内のコミット参照が切れる

📊 推奨判断

実行しない方が良い理由：

• 単なる警告で、機能的な問題はない
• 影響範囲が大きすぎる（開発者全員に影響）
• リスクとメリットが釣り合わない

実行する場合の条件：

• 全開発者の同意が必要
• 1週間以上前の事前通知
• すべてのPRをマージ/クローズ
• メンテナンス時間の確保

💡 代替案

1. 現状維持（推奨）- 警告を無視して運用継続
2. 新リポジトリ作成 - クリーンな履歴で再スタート（現実的でない）
3. README記載 - 警告について開発者向けに説明を追加

結論：56MBの警告のためだけに履歴書き換えはリスクが高すぎるため、現状維持を推奨します。