Buck2

What it does

Buck2 is Meta's latest open source, large-scale build system, available on GitHub. Buck2 is an extensible and performant build system written in Rust and designed to make your build experience faster and more efficient.

Buck2 is an open-source large-scale build system from Meta. The successor to Buck.

A large-scale build tool. The successor to Buck. Ready for users ∈ {C++, Python, Rust, Haskell, Erlang, OCaml, Java, Kotlin, Go} Buck2 is faster than Buck. If you've got nothing to do, Buck2 is significantly faster. If you've got lots to do, Buck2 will start doing it faster and be much closer to the critical path. Buck2 rules are hermetic by default. Missing dependencies are errors. These restrictions apply to both the user-written BUCK files and the language rules. Buck2 gives the right result more reliably. All rules are written in Starlark, with nothing in the core of Buck2 knowing anything about languages. That means that Buck2 users can define their own rules as first-classfrom buck2.build

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