Re: [Buildroot] [PATCH 2/2] package/sass: new package

Hello Alexis,

On Thu, Aug 06, 2026 at 11:24:23PM +0200, Alexis Lothoré wrote:
> sass is a css extension adding programming features to css.
> 
> https://github.com/sass/dart-sass
> 
> The source configured for the package is not a github repository, as the
> official sources for sass are in fact in Dart: those sources are
> automatically built into a javascript module by the corresponding github
> workflow ([1]). Rather than trying to replicate the whole dart build,
> this new package just downloads the sources for sass from npmjs
> directly.
> 
> [1]
> https://github.com/sass/dart-sass/blob/main/.github/workflows/release.yml
> 
> Signed-off-by: Alexis Lothoré <[email protected]>

I am not super clear on what sass exactly does/is. But some time ago,
we dropped all JS libraries from Buildroot:

  https://lore.kernel.org/buildroot/[email protected]/

But sass doesn't seem to be one of those static JS libraries I guess
because it installs some executable host tool?

> diff --git a/package/sass/sass.mk b/package/sass/sass.mk
> new file mode 100644
> index 000000000000..c79109be44a2
> --- /dev/null
> +++ b/package/sass/sass.mk
> @@ -0,0 +1,30 @@
> +################################################################################
> +#
> +# sass
> +#
> +################################################################################
> +
> +SASS_VERSION = 1.102.0
> +SASS_SOURCE = sass-$(SASS_VERSION).tgz
> +SASS_SITE = https://registry.npmjs.org/sass/-
> +SASS_LICENSE = MIT
> +SASS_LICENSE_FILES = LICENSE
> +HOST_SASS_DEPENDENCIES = host-nodejs
> +
> +define HOST_SASS_BUILD_CMDS
> +	$(HOST_DIR)/bin/npm install \
> +		--prefix $(@D) \
> +		--production \
> +		--no-audit \
> +		--no-fund

What is this "npm install" doing? Isn't it downloading random stuff
from the Internet?

> +endef
> +
> +define HOST_SASS_INSTALL_CMDS
> +	$(INSTALL) -m 0755 -d $(HOST_DIR)/lib/node_modules/sass
> +	$(INSTALL) -m 0755 $(@D)/sass.js $(HOST_DIR)/lib/node_modules/sass/
> +	$(INSTALL) -m 0755 $(@D)/sass.dart.js $(HOST_DIR)/lib/node_modules/sass/
> +	rsync -a $(@D)/node_modules $(HOST_DIR)/lib/node_modules/sass/

"cp -dpfr" instead of "rsync -a".

> +	ln -sf ../lib/node_modules/sass/sass.js $(HOST_DIR)/bin/sass
> +endef
> +
> +$(eval $(host-generic-package))
> diff --git a/support/testing/tests/package/test_sass.py b/support/testing/tests/package/test_sass.py
> new file mode 100644
> index 000000000000..2739eff7f680
> --- /dev/null
> +++ b/support/testing/tests/package/test_sass.py

Please add this file to the DEVELOPERS file.

Thomas
-- 
Thomas Petazzoni, co-owner and CEO, Bootlin
Embedded Linux and Kernel engineering and training
https://bootlin.com
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