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Copybara: A tool for transforming and moving code between repositories.

20 mentions on Hacker News by 19 people: 4 stories, 16 comments · first 2017-03-15 · latest 2026-08-20

Mentions per year 20 mentions · busiest year 2021 (4)
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  1. But google already built a tool to do exactly that: https://github.com/google/copybara
    comment by thayne · 2026-08-20 · in Google has stopped pushing Git tags for some Android source code
  2. …from the lack of a perforce version of Gerrit/Rietveld.. but, you can't ask for everything! [0]: https://github.com/google/copybara/pull/347
    comment by dijit · 2026-07-01 · in Google copybara: moving code between repositories
  3. ▲ 300
    Google copybara: moving code between repositories
    story by reconnecting · 2026-06-30 · 61 comments
  4. ▲ 14
    Copybara – tool for transforming and moving code between repositories
    story by wiradikusuma · 2025-12-29 · 0 comments
  5. …Mongo internally develops in a private repo and commits are published later to the public one with https://github.com/google/copybara . All of the confusion around dates is due to this.
    comment by plorkyeran · 2025-12-28 · in MongoBleed Explained Simply
  6. sure! it used a collection of tools, the main ones were * copybara [ https://github.com/google/copybara ] to mirror between github and our internal repo and transform the source tree layout to our internal conventions * mercurial patch…
    comment by zem · 2024-04-30 · in Google lays off its Python team
  7. …contradict my claim that if you're not already using Bazel you probably won't use Starlark. [0] https://github.com/google/copybara
    comment by lolinder · 2024-02-03 · in Pkl, a Programming Language for Configuration
  8. …in the company monorepo and on a public forge. There are (very nice) hacks for this like https://github.com/google/copybara and https://josh-project.github.io/josh/ , but these have considerable clunk-factor. When repos can be sliced and…
    comment by oftenwrong · 2024-01-23 · in Launch HN: Diversion (YC S22) – Cloud-Native Git Alternative
  9. …that mirror google3 projects. ... if I recall correctly the tool itself was open sourced too. https://github.com/google/copybara
    comment by bruckie · 2024-01-22 · in Culture Change at Google
  10. You can potentially use CopyBara https://github.com/google/copybara We go much further than CopyBara by syncing CI / CD pipelines, syncing review comments and so on. We are considering launching GitSlice as product on its own. If you are…
    comment by hzia · 2023-08-07 · in Launch HN: GitStart (YC S19) – Remote junior devs working on production PRs
  11. …source those bits, receive outside commits, and then sync the changes back to the monorepo. [1]: < https://github.com/google/copybara >
    comment by OmarAssadi · 2022-10-30 · in Tesla engineers were on-site to evaluate the Twitter staff’s code, workers said
  12. …Google's Copybara: Facebook's fbshipit: https://github.com/facebook/fbshipit Google's copybara: https://github.com/google/copybara With these tools, you can make fairly sophisticated choices about how you do vendoring. You can make the…
    comment by klodolph · 2021-10-27 · in Ask HN: State of PHP at Facebook?
  13. …for drive-by contributions, patch workflow for core contributors who work with it all day. [1]: https://github.com/google/copybara
    comment by lima · 2021-04-17 · in Bzg/woof: online monitor for mailing list based patch workflow
  14. https://github.com/google/copybara
    comment by 0xdeadc0de · 2021-04-01 · in How does Google manage protobufs
  15. ▲ 3
    Copybara: A tool for transforming and moving code between repositories
    story by optimalsolver · 2021-03-23 · 0 comments
  16. …look at the commits of their other open-source repositories, it seems this tool is often used. [1] https://github.com/google/copybara
    comment by baslas · 2020-06-01 · in What is the best and right way to open-source packages from a company monorepo?
  17. …and may share a lot of code, but I bet they are using something like Copybara to synchronize them. https://github.com/google/copybara
    comment by klodolph · 2019-10-11 · in Bazel Release 1.0
  18. …in release patterns(semantic versioning vs nightlies). We use copybara to help with this problem. - https://github.com/google/copybara
    comment by justinwp · 2019-01-08 · in Monorepos and the Fallacy of Scale
  19. Yep. Projects use Copybara to import/export OSS code. https://github.com/google/copybara
    comment by jingwen · 2017-12-10 · in Why Google stores billions of lines of code in a single repository (2016)
  20. ▲ 1
    Copybara: A tool for transforming and moving code between repositories
    story by steren · 2017-03-15 · 0 comments