[OE-core][PATCH v9 2/7] spdx30: Add supplier support for image and SDK SBOMs

[stondo@gmail.com]

From: Stefano Tondo <stefano.tondo.ext@siemens.com>

Add SPDX_IMAGE_SUPPLIER and SPDX_SDK_SUPPLIER variables that allow
setting a supplier agent on image and SDK SBOM root elements using
the suppliedBy property.

These follow the existing SPDX_PACKAGE_SUPPLIER pattern and use the
standard agent variable system to define supplier information.

Signed-off-by: Stefano Tondo <stefano.tondo.ext@siemens.com>
Reviewed-by: Joshua Watt <JPEWhacker@gmail.com>
---
 meta/classes/create-spdx-3.0.bbclass | 10 ++++++++++
 meta/lib/oe/spdx30_tasks.py          | 20 ++++++++++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/meta/classes/create-spdx-3.0.bbclass b/meta/classes/create-spdx-3.0.bbclass
index d4575d61c4..def2dacbc3 100644
--- a/meta/classes/create-spdx-3.0.bbclass
+++ b/meta/classes/create-spdx-3.0.bbclass
@@ -124,6 +124,16 @@ SPDX_ON_BEHALF_OF[doc] = "The base variable name to describe the Agent on who's
 SPDX_PACKAGE_SUPPLIER[doc] = "The base variable name to describe the Agent who \
     is supplying artifacts produced by the build"
 
+SPDX_IMAGE_SUPPLIER[doc] = "The base variable name to describe the Agent who \
+    is supplying the image SBOM. The supplier will be set on all root elements \
+    of the image SBOM using the suppliedBy property. If not set, no supplier \
+    information will be added to the image SBOM."
+
+SPDX_SDK_SUPPLIER[doc] = "The base variable name to describe the Agent who \
+    is supplying the SDK SBOM. The supplier will be set on all root elements \
+    of the SDK SBOM using the suppliedBy property. If not set, no supplier \
+    information will be added to the SDK SBOM."
+
 SPDX_PACKAGE_VERSION ??= "${PV}"
 SPDX_PACKAGE_VERSION[doc] = "The version of a package, software_packageVersion \
     in software_Package"
diff --git a/meta/lib/oe/spdx30_tasks.py b/meta/lib/oe/spdx30_tasks.py
index bc02b319c8..8aaafea616 100644
--- a/meta/lib/oe/spdx30_tasks.py
+++ b/meta/lib/oe/spdx30_tasks.py
@@ -1316,6 +1316,16 @@ def create_image_sbom_spdx(d):
 
     objset, sbom = oe.sbom30.create_sbom(d, image_name, root_elements)
 
+    # Set supplier on root elements if SPDX_IMAGE_SUPPLIER is defined
+    supplier = objset.new_agent("SPDX_IMAGE_SUPPLIER", add=False)
+    if supplier is not None:
+        supplier_id = supplier if isinstance(supplier, str) else supplier._id
+        if not isinstance(supplier, str):
+            objset.add(supplier)
+        for elem in sbom.rootElement:
+            if hasattr(elem, "suppliedBy"):
+                elem.suppliedBy = supplier_id
+
     oe.sbom30.write_jsonld_doc(d, objset, spdx_path)
 
     def make_image_link(target_path, suffix):
@@ -1427,6 +1437,16 @@ def create_sdk_sbom(d, sdk_deploydir, spdx_work_dir, toolchain_outputname):
         d, toolchain_outputname, sorted(list(files)), [rootfs_objset]
     )
 
+    # Set supplier on root elements if SPDX_SDK_SUPPLIER is defined
+    supplier = objset.new_agent("SPDX_SDK_SUPPLIER", add=False)
+    if supplier is not None:
+        supplier_id = supplier if isinstance(supplier, str) else supplier._id
+        if not isinstance(supplier, str):
+            objset.add(supplier)
+        for elem in sbom.rootElement:
+            if hasattr(elem, "suppliedBy"):
+                elem.suppliedBy = supplier_id
+
     oe.sbom30.write_jsonld_doc(
         d, objset, sdk_deploydir / (toolchain_outputname + ".spdx.json")
     )
-- 
2.53.0