Bazel vs BitBake
Bazel
bazel.buildBitBake
docs.yoctoproject.orgSide by side
| Figure | Bazel | BitBake |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 1 | 0 |
| Spec score · Build Automation Software | 8.8 (#3) | 7.3 (#31) |
| Extensibility | Users can write custom Bazel rules and macros in Starlark, a language that is a subset of Python. | BitBake supports embedded Python code and execution of arbitrary tasks. |
| Purpose | Bazel is an open-source tool that automates software builds and tests. | BitBake is a generic task execution engine that runs shell and Python tasks in parallel while managing dependencies. |
| Security consideration | The remote cache can contain binaries, so the documentation says it needs to be secured and advises limiting who can write to it. | BitBake is an execution engine that runs code both during builds and while parsing recipes, which the Yocto security manual describes as essential to its function. |
Plans
In their own words
Bazel
Bazel is a free, open-source tool for automating software builds and tests across languages and platforms. Projects define targets in BUILD files using Starlark, which can also be used to create custom rules and macros. Bazel caches prior work and rebuilds what needs to change, while running tasks in parallel. It supports languages including C++, Java, Kotlin, Python, Go, and Rust, with outputs for desktop, server, Android, and iOS. Bazel runs on Linux, macOS, and Windows, and the documentation describes builds with 100,000 or more source files across multiple repositories. Sandboxing can make builds and tests more hermetic, and failures return a non-zero exit code for basic CI integration. Teams can share outputs through a remote cache, but must select and maintain its backend and secure access because it can contain binaries. IDE options include plugins for IntelliJ, Android Studio, CLion, and Visual Studio Code, plus Xcode integration. Bazel is not well suited to uncached deployment steps that change cloud configuration.
BitBake
BitBake has no write-up on Specifiction yet; its figures are above.