
Bazel
6.7#4 in build automation softwareFree planFree planLinuxmacOSWindows
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| Fact | Bazel | Buck2 |
|---|---|---|
| Languages | Bazel supports languages including C++, Java, Kotlin, Python, Go, and Rust. | The language support table lists C/C++, Erlang, Go, Haskell, Java, Kotlin, OCaml, Python, and Rust with available prelude rules; support usability varies by language. |
| Maker | Google identifies Bazel as its own build tool. | Buck2 is a build system from Meta and the repository says it was designed by Meta. |
| Purpose | Bazel is an open-source tool that automates software builds and tests. | Buck2 is a large-scale, fast, hermetic, multi-language build system and the successor to Buck. |
| Support | The documentation points users to community support channels including Slack and Stack Overflow, as well as an issue tracker. | The project directs users to report issues through GitHub and provides a community Discord server. |
Bazel suits software teams working with large codebases, multiple compiled languages, multiple target platforms or extensive test suites. It may also fit projects that want cached builds and basic CI failure signaling.
Buck2 is aimed at teams working with large, multi-language repositories that need to compose targets across languages. It may be a fit for users prepared to work with early-stage software.