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

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]>
---
 DEVELOPERS                                         |  1 +
 package/Config.in.host                             |  1 +
 package/sass/Config.in.host                        |  8 ++++++
 package/sass/sass.hash                             |  3 +++
 package/sass/sass.mk                               | 30 ++++++++++++++++++++++
 support/testing/tests/package/test_sass.py         | 23 +++++++++++++++++
 .../tests/package/test_sass/sample_sass.scss       |  7 +++++
 7 files changed, 73 insertions(+)

diff --git a/DEVELOPERS b/DEVELOPERS
index 3027d1310528..4fee9b978467 100644
--- a/DEVELOPERS
+++ b/DEVELOPERS
@@ -158,6 +158,7 @@ N: 	Alexis Lothoré <[email protected]>
 F:	package/libxmlsec1/
 F:	package/openscap/
 F: 	package/python-scp/
+F:	package/sass/
 F:	package/uglifyjs/
 
 N:	Alistair Francis <[email protected]>
diff --git a/package/Config.in.host b/package/Config.in.host
index 0e4e29cd3514..4c5ed3865cb3 100644
--- a/package/Config.in.host
+++ b/package/Config.in.host
@@ -109,6 +109,7 @@ menu "Host utilities"
 	source "package/rustc/Config.in.host"
 	source "package/s6-rc/Config.in.host"
 	source "package/sam-ba/Config.in.host"
+	source "package/sass/Config.in.host"
 	source "package/sdbus-cpp/Config.in.host"
 	source "package/sdbusplus/Config.in.host"
 	source "package/sentry-cli/Config.in.host"
diff --git a/package/sass/Config.in.host b/package/sass/Config.in.host
new file mode 100644
index 000000000000..13f47efc8e84
--- /dev/null
+++ b/package/sass/Config.in.host
@@ -0,0 +1,8 @@
+config BR2_PACKAGE_HOST_SASS
+	bool "host sass"
+	help
+	  sass is a pure javascript Dart Sass distribution, with Sass
+	  being a CSS preprocessor, allowing to use programming features
+	  with CSS
+
+	  https://github.com/sass/dart-sass
diff --git a/package/sass/sass.hash b/package/sass/sass.hash
new file mode 100644
index 000000000000..d8cce0da9d4a
--- /dev/null
+++ b/package/sass/sass.hash
@@ -0,0 +1,3 @@
+# Locally calculated
+sha256  cc0a9a8f9025c60c13eff214a13f71cbd0b76051dbe6e56f24990da73b85efdb  sass-1.102.0.tgz
+sha256  1523011dc1c6136ac2c4689f93b203f11690848d9641189b7a40848502d21568  LICENSE
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
+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/
+	ln -sf ../lib/node_modules/sass/sass.js $(HOST_DIR)/bin/sass
+endef
+
+$(eval $(host-generic-package))
diff --git a/support/testing/tests/package/test_sass.py b/support/testing/tests/package/test_sass.py
new file mode 100644
index 000000000000..2739eff7f680
--- /dev/null
+++ b/support/testing/tests/package/test_sass.py
@@ -0,0 +1,23 @@
+import os
+import infra
+from pathlib import Path
+
+from infra.basetest import BRTest
+
+INPUT_SAMPLE = Path(__file__).parent / "test_sass/sample_sass.scss"
+
+
+class TestHostSass(BRTest):
+    config = infra.basetest.BASIC_TOOLCHAIN_CONFIG + \
+        """
+        BR2_PACKAGE_HOST_SASS=y
+        """
+
+    def test_run(self):
+        sass_bin = os.path.join(self.builddir, "host", "bin", "sass")
+
+        cmd = [sass_bin, "--version"]
+        infra.run_cmd_on_host(self.builddir, cmd)
+
+        cmd = [sass_bin, INPUT_SAMPLE, "output.css"]
+        infra.run_cmd_on_host(self.builddir, cmd)
diff --git a/support/testing/tests/package/test_sass/sample_sass.scss b/support/testing/tests/package/test_sass/sample_sass.scss
new file mode 100644
index 000000000000..b8bf7120118c
--- /dev/null
+++ b/support/testing/tests/package/test_sass/sample_sass.scss
@@ -0,0 +1,7 @@
+$font-stack: Helvetica, sans-serif;
+$primary-color: #333;
+
+body {
+  font: 100% $font-stack;
+  color: $primary-color;
+}

-- 
2.55.0

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