Dune The OCaml build system Jeremie Dimino, Jane Street @diml - - PowerPoint PPT Presentation

▶

Apr 05, 2024 214 likes •364 views

Dune The OCaml build system Jeremie Dimino, Jane Street @diml @dimenix The history of Dune At the beginning, there was omake, ocamlbuild, ... ... then Jane Street did Jenga and the Jenga rules... ... then a domain specic tool called

SLIDE 1

Dune

The OCaml build system

Jeremie Dimino, Jane Street

@diml @dimenix

SLIDE 2

SLIDE 3

SLIDE 4

The history of Dune

SLIDE 5

At the beginning, there was omake, ocamlbuild, ... ... then Jane Street did Jenga and the Jenga rules... ... then a domain specic tool called jbuilder... ... and nally Dune.

SLIDE 6

What is Dune?

SLIDE 7

bin/foo.exe
lib/foo/foo.cma
lib/foo/foo.cmi
...
share/man/man1/foo.1
doc/foo/LICENSE.md
...

Project

src/dune test/dune example/dune

(library (public_name mylib) (libraries base re lwt)) ; Custom build rule (rule (with-stdout-to m.ml (run gen/gen.exe)))

SLIDE 8

Build system OCaml Build Logic Dune language

SLIDE 9

Interesng Dune features

Composability Multiple build contexts

SLIDE 10

How does it work?

SLIDE 11

Rule producer Rule executor (scheduler+rebuilder)

SLIDE 12

let read_dune_file fname = let contents = read_file fname in parse_dune_file fname let get_lib dir = let stanzas = read_dune_file (Path.relative dir "dune") in List.find_map stanzas ~f:(function | Library lib -> Some lib.name | _ -> None)

SLIDE 13

Memoisaon framework

get_lib("foo/src") read_dune_file("foo/src/dune") read_file("foo/src/dune")

SLIDE 14

The end

dune.build discuss.ocaml.org

pensource.janestreet.com