Ship .ninja_log in llvm-build-stats package

This should make it easier to analyze which parts of the build
are slow. The new package is only available in snapshot builds,
we don't want to ship it in production.

check.spec.inc

@@ -216,3 +216,8 @@ cd llvm
 %endif
 
 #endregion
+
+%if %{with snapshot_build}
+# Do this here instead of in install so the check targets are also included.
+cp %{_vpath_builddir}/.ninja_log %{buildroot}%{pkg_datadir}
+%endif

files.spec.inc

@@ -309,6 +309,11 @@
 %{install_includedir}/llvm-gtest
 %{install_includedir}/llvm-gmock
 
+%if %{with snapshot_build}
+%files -n %{pkg_name_llvm}-build-stats
+%{pkg_datadir}/.ninja_log
+%endif
+
 #endregion
 
 #region CLANG files

packages.spec.inc

@@ -80,6 +80,14 @@ LLVM's modified googletest sources.
 
 %endif
 
+%if %{with snapshot_build}
+%package -n %{pkg_name_llvm}-build-stats
+Summary: Statistics for the RPM build
+
+%description -n %{pkg_name_llvm}-build-stats
+Statistics for the RPM build. Only available in snapshot builds.
+%endif
+
 #endregion
 
 #region CLANG packages