On Tue, 06 Dec 2022, Carlos Bilbao <carlos.bilbao@xxxxxxx> wrote:
> Generate rustdoc documentation with the rest of subsystem's documentation
> in Documentation/output. Add a cross reference to the generated rustdoc in
> Documentation/rust/index.rst.
>
> Signed-off-by: Carlos Bilbao <carlos.bilbao@xxxxxxx>
> ---
> Documentation/rust/index.rst | 5 +++++
> rust/Makefile | 15 +++++++++------
> 2 files changed, 14 insertions(+), 6 deletions(-)
>
> diff --git a/Documentation/rust/index.rst b/Documentation/rust/index.rst
> index 4ae8c66b94fa..416d6b3de1e4 100644
> --- a/Documentation/rust/index.rst
> +++ b/Documentation/rust/index.rst
> @@ -6,6 +6,11 @@ Rust
> Documentation related to Rust within the kernel. To start using Rust
> in the kernel, please read the quick-start.rst guide.
>
> +.. only:: html
> +
> + If this documentation includes rustdoc-generated HTML, the entry
> + point can be found `here <rustdoc/kernel/index.html>`_.
> +
It's a bit meh to have documentation that points to places that might
404 and the user has to figure it out.
We can do better than that.
You could use CONFIG_RUST to pass e.g. "-t rustdoc" to Sphinx in the
Makefile, and use:
.. only:: rustdoc
and
.. only:: not rustdoc
And document accordingly.
Also, please don't use "here" as the link text.
BR,
Jani.
> .. toctree::
> :maxdepth: 1
>
> diff --git a/rust/Makefile b/rust/Makefile
> index 7700d3853404..080c07048065 100644
> --- a/rust/Makefile
> +++ b/rust/Makefile
> @@ -1,5 +1,8 @@
> # SPDX-License-Identifier: GPL-2.0
>
> +# Where to place rustdoc generated documentation
> +RUSTDOC_OUTPUT = $(objtree)/Documentation/output/rust/rustdoc
> +
> always-$(CONFIG_RUST) += target.json
> no-clean-files += target.json
>
> @@ -58,7 +61,7 @@ quiet_cmd_rustdoc = RUSTDOC $(if $(rustdoc_host),H, ) $<
> OBJTREE=$(abspath $(objtree)) \
> $(RUSTDOC) $(if $(rustdoc_host),$(rust_common_flags),$(rust_flags)) \
> $(rustc_target_flags) -L$(objtree)/$(obj) \
> - --output $(objtree)/$(obj)/doc \
> + --output $(RUSTDOC_OUTPUT) \
> --crate-name $(subst rustdoc-,,$@) \
> @$(objtree)/include/generated/rustc_cfg $<
>
> @@ -75,15 +78,15 @@ quiet_cmd_rustdoc = RUSTDOC $(if $(rustdoc_host),H, ) $<
> # and then retouch the generated files.
> rustdoc: rustdoc-core rustdoc-macros rustdoc-compiler_builtins \
> rustdoc-alloc rustdoc-kernel
> - $(Q)cp $(srctree)/Documentation/images/logo.svg $(objtree)/$(obj)/doc
> - $(Q)cp $(srctree)/Documentation/images/COPYING-logo $(objtree)/$(obj)/doc
> - $(Q)find $(objtree)/$(obj)/doc -name '*.html' -type f -print0 | xargs -0 sed -Ei \
> + $(Q)cp $(srctree)/Documentation/images/logo.svg $(RUSTDOC_OUTPUT)
> + $(Q)cp $(srctree)/Documentation/images/COPYING-logo $(RUSTDOC_OUTPUT)
> + $(Q)find $(RUSTDOC_OUTPUT) -name '*.html' -type f -print0 | xargs -0 sed -Ei \
> -e 's:rust-logo\.svg:logo.svg:g' \
> -e 's:rust-logo\.png:logo.svg:g' \
> -e 's:favicon\.svg:logo.svg:g' \
> -e 's:<link rel="alternate icon" type="image/png" href="[./]*favicon-(16x16|32x32)\.png">::g'
> $(Q)echo '.logo-container > img { object-fit: contain; }' \
> - >> $(objtree)/$(obj)/doc/rustdoc.css
> + >> $(RUSTDOC_OUTPUT)/rustdoc.css
>
> rustdoc-macros: private rustdoc_host = yes
> rustdoc-macros: private rustc_target_flags = --crate-type proc-macro \
> @@ -141,7 +144,7 @@ quiet_cmd_rustdoc_test = RUSTDOC T $<
> @$(objtree)/include/generated/rustc_cfg \
> $(rustc_target_flags) $(rustdoc_test_target_flags) \
> --sysroot $(objtree)/$(obj)/test/sysroot $(rustdoc_test_quiet) \
> - -L$(objtree)/$(obj)/test --output $(objtree)/$(obj)/doc \
> + -L$(objtree)/$(obj)/test --output $(RUSTDOC_OUTPUT) \
> --crate-name $(subst rusttest-,,$@) $<
>
> # We cannot use `-Zpanic-abort-tests` because some tests are dynamic,
--
Jani Nikula, Intel Open Source Graphics Center
