apple/container

[Request]: `Image save` command: platform default to current

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#712 opened on 2025年10月3日

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good first issue

説明

Feature or enhancement request details

When saving an image pulled from remote sources, if the platform is nil, the save will failed with the notFound error:

For example, running

container image save alpine:latest --output /Users/itsuki/Desktop/untitled\ folder/image.tar

will give

Error: notFound: "Content with digest sha256:eafc1edb577d2e9b458664a15f23ea1c370214193226069eb22921169fc7e43f"

The digest here is not the digest for the image we are trying to save specifically, but the same for any (I think) remote images.

However, specifying the platform to be the current platform, in my case, --platform linux/arm64/v8, the save will success.

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コントリビューターガイド

技術スタック
swiftshell
領域
cliinfrastructuredeveloper experience
Issue 種別
feature
難度新しい貢献者にとっての実装難度です。1 は非常に小さな変更、5 は専門的な作業です。
3
推定時間経験ある貢献者が調査、実装、テスト、pull request 準備にかけるおおよその時間範囲です。
1-3 hours
活動状況Issue が今どれだけ取り組みやすいかを示します。新しい、活発、古い、ブロック中、またはメンテナー入力待ちなどです。
fresh
明確さ期待される変更、受け入れ条件、次の手順がどれだけ明確かを示します。
mostly clear
前提条件
Swiftcontainer image basicsCLI tool usage
初心者向け度初回貢献者にどれだけ取り組みやすいかを 1-100 で推定したスコアです。
65
調査方針
Investigate the `image save` command implementation in the repository. Look for where the platform parameter is handled and where a default platform should be set to the current system platform (e.g., via runtime detection or configuration). Check the error message to identify the source of the notFound digest mismatch. Consider adding a fallback to the current platform when nil is provided, similar to how other commands might default. Relevant files could be in the command handler or platform resolution logic.