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Buck2: Our open source build system

(engineering.fb.com)
392 points mfiguiere | 1 comments | 06 Apr 23 16:05 UTC | HN request time: 0.407s | source
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jeffbee ◴[06 Apr 23 16:57 UTC] No.35471168[source]▶
Hrmm, it makes performance claims with regard to Buck1 but not to Bazel, the obvious alternative. Hardly anyone uses Buck1 so you'd think it would be relevant.
replies(4): >>35471239 #>>35471275 #>>35472290 #>>35475655 #
dtolnay ◴[06 Apr 23 17:02 UTC] No.35471239[source]▶
I have a non-toy multi-language project in https://github.com/dtolnay/cxx for which I have both Buck2 and Bazel build rules.

On my machine `buck2 clean && time buck2 build :cxx` takes 6.2 seconds.

`bazel clean && time bazel build :cxx` takes 19.9 seconds.

replies(2): >>35471321 #>>35471495 #
jeffbee ◴[06 Apr 23 17:08 UTC] No.35471321[source]▶
That's cool. I was not able to repro due to the buck2 instructions not working for me, two different ways

   Compiling gazebo v0.8.1 (/home/jwb/buck2/gazebo/gazebo)
  error[E0554]: `#![feature]` may not be used on the stable release channel
  --> gazebo/gazebo/src/lib.rs:10:49
Then with the alternate instructions:

  error: no such command: `+nightly-2023-01-24`
 Cargo does not handle `+toolchain` directives.
 Did you mean to invoke `cargo` through `rustup` instead?
replies(2): >>35471351 #>>35505491 #
1. yencabulator ◴[09 Apr 23 19:06 UTC] No.35505491[source]▶
FWIW buck2 doesn't seem to build with nightly-2023-01-24 at this time, nightly-2023-03-15 worked for me. (Nightlies from April cause an internal compiler error.)