CPack/RPM adding dist to release tag test

Tests and release notes

Help/release/dev/cpack-rpm-adding-dist-to-release-tag.rst

+cpack-rpm-adding-dist-to-release-tag
+------------------------------------
+
+* The :module:`CPackRPM` module learned how to set RPM ``dist`` tag as part of
+  RPM ``Release:`` tag when enabled (mandatory on some Linux distributions for
+  e.g. on Fedora).
+  See :variable:`CPACK_RPM_PACKAGE_RELEASE_DIST`.

Tests/RunCMake/CPack/RPM/RPM_DIST-ExpectedFiles.cmake

+set(whitespaces_ "[\t\n\r ]*")
+
+set(EXPECTED_FILES_COUNT "1")
+set(EXPECTED_FILE_1 "rpm_dist*.rpm")
+set(EXPECTED_FILE_CONTENT_1 "^/usr/foo${whitespaces_}/usr/foo/CMakeLists.txt$")

Tests/RunCMake/CPack/RPM/RPM_DIST-VerifyResult.cmake

+execute_process(COMMAND ${RPMBUILD_EXECUTABLE} -E %{?dist}
+                OUTPUT_VARIABLE DIST_TAG
+                ERROR_QUIET
+                OUTPUT_STRIP_TRAILING_WHITESPACE)
+
+set(whitespaces_ "[\t\n\r ]*")
+
+getPackageInfo("${FOUND_FILE_1}" "FILE_INFO_")
+if(NOT FILE_INFO_ MATCHES ".*Release${whitespaces_}:${whitespaces_}1${DIST_TAG}")
+  message(FATAL_ERROR "Unexpected Release in '${FOUND_FILE_1}'; file info: '${FILE_INFO_}'")
+endif()

Tests/RunCMake/CPack/RPM_DIST.cmake

+install(FILES CMakeLists.txt DESTINATION foo COMPONENT test)
+
+set(CPACK_RPM_PACKAGE_RELEASE_DIST ON)
+set(CPACK_PACKAGE_NAME "rpm_dist")

Tests/RunCMake/CPack/RunCMakeTest.cmake

@@ -11,4 +11,5 @@ run_cpack_test(DEPENDENCIES "RPM;DEB" true)
 run_cpack_test(EMPTY_DIR "RPM;DEB;TGZ" true)
 run_cpack_test(COMPONENTS_EMPTY_DIR "RPM;DEB;TGZ" true)
 run_cpack_test(PER_COMPONENT_FIELDS "RPM;DEB" false)
+run_cpack_test(RPM_DIST "RPM" false)
 run_cpack_test(INSTALL_SCRIPTS "RPM" false)