dsl: pass GZ_CMAKE_PKG to source generation jobs

Pass the collection-specific gz-cmake package as a parameter to
source generation jobs from gazebo_libs.dsl. This ensures that
prereleases generated from main branches install the correct versioned
package from the target repository rather than relying on the rotary
package in .github/ci/packages.apt.

Assisted-by: Gemini 3.7 Flash
Signed-off-by: Addisu Z. Taddese <addisuzt@intrinsic.ai>

Author: azeey

jenkins-scripts/docker/gz-source-generation.bash

@@ -28,8 +28,9 @@ case "\$SOURCE_DATE_EPOCH" in
     ;;
 esac
 
-GZ_CMAKE_PKG=""
-if [ -f "\${SOURCES_DIR}/.github/ci/packages.apt" ]; then
+GZ_CMAKE_PKG="${GZ_CMAKE_PKG}"
+# If GZ_CMAKE_PKG is not set via environment/parameter, try detecting from packages.apt
+if [ -z "\$GZ_CMAKE_PKG" ] && [ -f "\${SOURCES_DIR}/.github/ci/packages.apt" ]; then
   GZ_CMAKE_PKG=\$(grep -E '^lib(gz|ign|ignition)(-rotary)?-cmake[0-9]*-dev' "\${SOURCES_DIR}/.github/ci/packages.apt" | head -n 1)
 fi
 

jenkins-scripts/dsl/_configs_/OSRFSourceCreation.groovy

@@ -47,6 +47,9 @@ class OSRFSourceCreation
         stringParam("EXTRA_OSRF_REPO",
                     default_params.find{ it.key == "EXTRA_OSRF_REPO"}?.value,
                     "For downstream jobs: OSRF extra repositories to add")
+        stringParam("GZ_CMAKE_PKG",
+                    default_params.find{ it.key == "GZ_CMAKE_PKG"}?.value ?: "",
+                    "gz-cmake dev package to install for source generation (optional)")
       }
     }
   }

jenkins-scripts/dsl/gazebo_libs.dsl

@@ -610,10 +610,22 @@ pkgconf_per_src_index.each { pkg_src, pkg_src_configs ->
       pre_setup_script_hooks
     )
     // - SOURCE jobs ---------------------------------------------------
+    def gz_cmake_lib = collection.libs.find { it.name == 'gz-cmake' }
+    def gz_cmake_pkg = ""
+    if (canonical_lib_name != 'gz-cmake') {
+      if (gz_cmake_lib?.major_version) {
+        gz_cmake_pkg = (gz_cmake_lib.major_version == 2) ?
+          "libignition-cmake2-dev" : "libgz-cmake${gz_cmake_lib.major_version}-dev"
+      } else if (collection_name == 'rotary') {
+        gz_cmake_pkg = "libgz-rotary-cmake-dev"
+      }
+    }
+
     def gz_source_job = job("${debbuilder_pkg_name}-source")
     OSRFSourceCreation.create(gz_source_job, [
       PACKAGE: debbuilder_pkg_name,
-      SOURCE_REPO_URI: "https://github.com/gazebosim/${canonical_lib_name}.git"])
+      SOURCE_REPO_URI: "https://github.com/gazebosim/${canonical_lib_name}.git",
+      GZ_CMAKE_PKG: gz_cmake_pkg])
     OSRFSourceCreation.call_uploader_and_releasepy(gz_source_job,
       canonical_lib_name,
       'repository_uploader_packages',