Documentation in dune is done courtesy of the odoc tool. Therefore, to generate documentation in dune, you will need to install this tool. This should likely be done with opam:
$ opam install odoc
Documentation comments will be automatically extracted from your OCaml source
files following the syntax described in the section
Text formatting of
the OCaml manual.
Additional documentation pages may by attached to a package can be attached using the documentation stanza.
Building the documentation using the
@doc alias. Hence, all that is required
to generate documentation for your project is building this alias:
$ dune build @doc
An index page containing links to all the opam packages in your project can be found in:
$ open _build/default/_doc/_html/index.html
Documentation for private libraries may also be built with:
$ dune build @doc-private
But this libraries will not be in the main html listing above, since they do not
belong to any particular package. But the generated html will still be found in
This stanza use attach all the .mld files in the current directory in a project with a single package.
This stanza will attach three mld files to package foo. The
mld files should
(documentation (package foo) (mld_files foo bar baz))
This stanza will attach all mld files excluding
wip.mld in the current
directory to the inferred package:
(documentation (mld_files :standard \ wip))
Passing options to Odoc¶
(env (<profile> (odoc <optional-fields>)))
See env for more details on the
(env ...) stanza.
(warnings <mode>)specifies how warnings should be handled.
nonfatal. The default value is
nonfatal. This field is available since Dune 2.4.0 and requires Odoc 1.5.0.