The Eleventh HOPE (2016): "The Code Archive" (Download)
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The Eleventh HOPE (2016): "The Code Archive" (Download)

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Friday, July 22, 2016: 6:00 pm (Noether): Archiving web pages is hard. Crawling, images, assets... Javascript! But archiving code is not. It comes as content-addressed objects neatly packaged in repositories and tagged with refs. It compresses well. Changes can be detected in real time with the GitHub Firehose API.Nevertheless, we need to do it today while the host is healthy, and not wait for it to start bundling adware or slowly fade away. Otherwise, in ten years we’ll find ourselves running unreproducible binaries on Javascript emulators, or unable to build the software that could recover all our pictures because that one dependency is missing.This is a talk about building The Code Archive, a Wayback Machine for git. Every time a repository changes on GitHub, Code Archive systems fetch it and archive all the files, commits, tags, and branches as they were at that time. Then you can clone a repository as it was at any point in time, even if the original has been rebased, has disappea

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