From dc438ae23140c2ff853a0eefe7c8a10099a73878 Mon Sep 17 00:00:00 2001
From: Alexandru Croitor <alexandru.croitor@qt.io>
Date: Mon, 9 Dec 2024 17:56:35 +0100
Subject: [PATCH] CMake: Add internal functions to get various kinds of spdx
 ids

These can be useful when adding custom relationships to the generated
SBOM document.

Sample usages could be:

qt_internal_sbom_get_target_spdx_id(Svg svg_spdx_id)
qt_internal_sbom_get_project_spdx_id(project_spdx_id)
qt_internal_sbom_get_external_document_ref_spdx_id(
    "qt5compat" document_ref_spdx_id)

Task-number: QTBUG-122899
Task-number: QTBUG-129901
Task-number: QTBUG-131377
Change-Id: Idbd5c8bffece50871f995805b619226e32957866
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
(cherry picked from commit 97ac4053137c7d0ff5ec71de22cf8c0c7af7006a)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
(cherry picked from commit a32359a10139e065dd634ad11ee42f5097ddb3d5)
---
 cmake/QtSbomHelpers.cmake | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/cmake/QtSbomHelpers.cmake b/cmake/QtSbomHelpers.cmake
index 095888337e8..dc5b476f766 100644
--- a/cmake/QtSbomHelpers.cmake
+++ b/cmake/QtSbomHelpers.cmake
@@ -67,3 +67,37 @@ function(qt_internal_sbom_generate_tag_value_spdx_document)
             PARENT_SCOPE)
     endif()
 endfunction()
+
+function(qt_internal_sbom_get_project_spdx_id out_var)
+    set(result "")
+
+    if(QT_GENERATE_SBOM)
+        get_cmake_property(project_spdx_id _qt_internal_sbom_project_spdx_id)
+        if(project_spdx_id)
+            set(result "${project_spdx_id}")
+        endif()
+    endif()
+
+    set(${out_var} "${result}" PARENT_SCOPE)
+endfunction()
+
+function(qt_internal_sbom_get_target_spdx_id target out_var)
+    set(result "")
+
+    if(QT_GENERATE_SBOM)
+        _qt_internal_sbom_get_spdx_id_for_target(${target} result)
+    endif()
+
+    set(${out_var} "${result}" PARENT_SCOPE)
+endfunction()
+
+function(qt_internal_sbom_get_external_document_ref_spdx_id project_name out_var)
+    set(result "")
+
+    if(QT_GENERATE_SBOM)
+        string(TOLOWER "${project_name}" project_name_lowercase)
+        _qt_internal_sbom_get_external_document_ref_spdx_id("${project_name_lowercase}" result)
+    endif()
+
+    set(${out_var} "${result}" PARENT_SCOPE)
+endfunction()