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+# ROS spec：nebula-core-hw-interfaces
+# 上游：tier4/nebula monorepo（https://github.com/tier4/nebula，branch main）
+# 本包为 monorepo 子包，源码位于 src/nebula_core/nebula_core_hw_interfaces/
+# 构建形态：ament_cmake（buildtool 依赖 autoware_cmake）
+# Version 取自 ros_pkg_manifest.json 的 target_version=1.2.0
+# Source0 用 ros_fetch 实际拉取的 commit 归档；SRPM 内捆绑归档实测根目录名 = 纯 commit SHA（spec-rules §2）
+
+%define ros_distro humble
+%define RosPkgName nebula-core-hw-interfaces
+%global commit 26749c80dff89f39000a9817141143c05ec151ab
+
+Name:           ros-%{ros_distro}-%{RosPkgName}
+Version:        1.2.0
+Release:        1%{?dist}
+Summary:        Nebula HW Interfaces Base
+License:        Apache-2.0
+URL:            https://github.com/tier4/nebula
+# 实测 SRPM 内捆绑归档解压根目录为纯 commit SHA（spec-rules §2 + SRPM 归档实测），
+# autosetup -n 与之匹配（EUR ROS-humble-3 同包用 -n %{commit} 构建成功证实）
+Source0:        https://github.com/tier4/nebula/archive/%{commit}.tar.gz
+
+# ROS /opt 前缀：关闭 debug 子包、摘除 python 字节码 brp、豁免自动依赖扫描
+%global debug_package %{nil}
+%global __os_install_post %(echo '%{__os_install_post}' | sed -e 's!/usr/lib[^[:space:]]*/brp-python-bytecompile[[:space:]].*$!!g')
+%global __provides_exclude_from ^/opt/ros/%{ros_distro}/.*$
+%global __requires_exclude_from ^/opt/ros/%{ros_distro}/.*$
+
+# 单包策略：虚拟别名兼容依赖方，严禁拆实体 -devel 子包（路径重叠致安装事务冲突，spec-rules §7）
+Provides:       %{name}-devel = %{version}-%{release}
+Provides:       %{name}-doc = %{version}-%{release}
+Provides:       %{name}-runtime = %{version}-%{release}
+
+# ROS 依赖（均有清单依据，非幻觉）：
+#   ament-cmake —— SIG 已移植（embedded 附加源）
+#   autoware-cmake —— buildtool_depend，embedded 附加源有
+#   nebula-core-common —— package.xml <depend>，embedded 附加源有
+BuildRequires:  cmake
+BuildRequires:  gcc-c++
+BuildRequires:  ros-%{ros_distro}-ament-cmake
+BuildRequires:  ros-%{ros_distro}-autoware-cmake
+BuildRequires:  ros-%{ros_distro}-nebula-core-common
+
+# 运行时 Requires（ROS /opt 被 __requires_exclude_from 豁免，autodeps 扫不到，必须手写）
+Requires:       ros-%{ros_distro}-ros-workspace
+Requires:       ros-%{ros_distro}-ament-cmake
+# ament_export_dependencies 导出 nebula_core_common，消费方构建期需此包
+Requires:       ros-%{ros_distro}-nebula-core-common
+
+%description
+Nebula HW Interfaces Base — header-only INTERFACE library providing hardware
+interface abstractions (UDP, TCP, CAN, HTTP) for the Nebula sensor driver
+framework, built into /opt/ros/%{ros_distro}.
+
+%prep
+# 归档根目录为纯 commit SHA（spec-rules §2 + SRPM 内归档实测），autosetup -n 与之匹配
+%autosetup -n %{commit}
+
+%build
+# ROS 基座环境（chroot 未装 setup.sh 时用 [ -f ] 守卫，避免严格 sh 中止整个 %build）
+[ -f /opt/ros/%{ros_distro}/setup.sh ] && source /opt/ros/%{ros_distro}/setup.sh || true
+export PYTHONPATH=/opt/ros/%{ros_distro}/lib/python%{python3_version}/site-packages${PYTHONPATH:+:$PYTHONPATH}
+export PKG_CONFIG_PATH=/opt/ros/%{ros_distro}/lib/pkgconfig${PKG_CONFIG_PATH:+:$PKG_CONFIG_PATH}
+
+# monorepo 子包，CMakeLists 在 src/nebula_core/nebula_core_hw_interfaces
+cd src/nebula_core/nebula_core_hw_interfaces
+mkdir -p .obj
+cd .obj
+# 显式 out-of-source 构建（避免 openEuler %cmake 宏位置参数坑，spec-rules §5）
+cmake .. \
+    -DCMAKE_INSTALL_PREFIX="/opt/ros/%{ros_distro}" \
+    -DAMENT_PREFIX_PATH="/opt/ros/%{ros_distro}" \
+    -DCMAKE_PREFIX_PATH="/opt/ros/%{ros_distro}" \
+    -UINCLUDE_INSTALL_DIR -ULIB_INSTALL_DIR -USYSCONF_INSTALL_DIR -USHARE_INSTALL_PREFIX -ULIB_SUFFIX \
+    -DSETUPTOOLS_DEB_LAYOUT=OFF \
+    -DBUILD_TESTING=OFF -DTESTING=OFF -DCMAKE_SUPPRESS_REGENERATION=ON
+%make_build
+
+%install
+[ -f /opt/ros/%{ros_distro}/setup.sh ] && source /opt/ros/%{ros_distro}/setup.sh || true
+export PYTHONPATH=/opt/ros/%{ros_distro}/lib/python%{python3_version}/site-packages${PYTHONPATH:+:$PYTHONPATH}
+export PKG_CONFIG_PATH=/opt/ros/%{ros_distro}/lib/pkgconfig${PKG_CONFIG_PATH:+:$PKG_CONFIG_PATH}
+
+cd src/nebula_core/nebula_core_hw_interfaces/.obj
+make install DESTDIR=%{buildroot}
+
+%files
+%license LICENSE
+# 整树拥有（SIG 模板标准，对「装了没打包」类错误免疫，spec-rules §7）
+/opt/ros/%{ros_distro}
+
+%changelog
+* Wed Sep 23 2026 AI Importer <ai-importer@opencode.local> - 1.2.0-1
+- 初始引入 ros-humble-nebula-core-hw-interfaces（ament_cmake / autoware_cmake 形态）。
+- 源自 tier4/nebula monorepo commit 26749c80（branch main），子包 src/nebula_core/nebula_core_hw_interfaces。
+- 构建 header-only INTERFACE 库 nebula_core_hw_interfaces，安装硬件接口头文件与 CMake 导出。