Version 2 of OBazl, a Bazel ruleset for building OCaml code, will soon be available. I’m letting you know early because I’ll be giving a presentation about the OBazl Toolsuite for the Bazel Exchange conference next Wed, 22 June, at 3:00 pm UDT (10:00 am CDT). It’s a virtual conference so you can tu…

[image] jhw: One thing that really bugs me about Dune is that it refuses to allow multiple libraries to be packaged in the same OPAM package. Which is why there are ten thousand Tezos packages in the OPAM repository and not five. And why you have to automate the process of making a release to OP…

[image] anuragsoni: You don’t have do that if you don’t want to though? Shows what I get for not bothering to keep up with the release notes. This was not an option last I checked. Dunno if it’s enough to sway me to reconsider. There are so many other opinions Dune feels so strongly about tha…

So while I’m offering marginally solicited feedback about build tool features that appeal to me… (this may be of interest to both @mobileink and @dbuenzli )… A thing that three years of working in a shop heavily invested in Bazel has taught me is that Bazel really got something very very right by de…

[image] jhw: Accordingly, if OBazl can be made useful as the build tool for my OPAM packages, then it would meet all my needs. Indeed that’s a practical requirement. Nobody publishing stuff to OPAM is going to be very interested in a tool that can’t do that with relative ease. So it’s definit…

[image] jhw: Likewise, if B0 were to take a cue from Bazel and define a systematic path hierarchy for naming build units (maybe it already does?) I’m not sure what this refers to exactly but basically in b0 each B0.ml file defines a flat namespace called scope in which you perform definitions…

Gregg, First, thank you for doing this work, and for sharing it. I’ve started: got bazel installed, built the C++ tutorials, and am about to start on OCaml. Um, where would be the right venue for asking questions about OBazl, but also about Bazel itself? For instance: How do I see what was actu…

[image] Chet_Murthy: where would be the right venue for asking questions about OBazl, but also about Bazel itself? I’ve set up a discord server, https://discord.gg/wZCSq2nq6y . That’s probably the best place if you’re worried about annoying people who are not interested in Obazl. I monitor the…

[image] jhw: Bazel really got something very very right by defining a syntax for hierarchical names for build targets and a query language for searching the build graph. I’ll add to that Bazel’s notion of toolchain, which I think is probably unique. It’s pretty slick, and particularly apropos…

[image] mobileink: I’ll add to that Bazel’s notion of toolchain, which I think is probably unique. It’s pretty slick, and particularly apropos for OCaml. Totally concur with that. At my day job, we’re using over a half dozen different C++ compilers from various vendors, each with multiple imp…

Hi, Gregg! Thank you for your hard work on this, all of this seems very interesting. Are there any plans to integrate with rules-nixpkgs ? Being able to define an Opam toolchain that is pulled in by Nix would be amazing.

OBazl Toolsuite - tools for building OCaml with Bazel

Ecosystem

mobileink March 30, 2025, 6:36pm 70

Some interesting feedback, most of which is unrelated to bazel but very relevant to ocaml. Is there some way we could split this off to a separate thread starting with your question?

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OBazl Toolsuite - tools for building OCaml with Bazel

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