At the heart of BuildKit is LLB (Low-Level Build definition). Think of it as the LLVM IR of build systems. LLB is a binary protocol (protobuf) that describes a DAG of filesystem operations: run a command, copy files, mount a filesystem. It’s content-addressable, which means identical operations produce identical hashes, enabling aggressive caching.
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，更多细节参见爱思助手下载最新版本
在听取代表发言后，丁薛祥说，李强总理所作的政府工作报告，全面贯彻习近平新时代中国特色社会主义思想，充分体现了党中央关于当前和今后一个时期工作的安排部署，是一篇高举旗帜、求真务实、催人奋进的好报告，我完全赞成。
In addition to seeing the differences between versions (36 upgraded packages, 3 new ones), we can also see the additional packages I’ve installed on top of the base image (LayeredPackages). I can also ask ostree to display the commit content, just like I would with git show.