Including a file, expanding the macros in it and writing the result to another file?

[DaanDeMeyer]

I'm trying to include a file with macros in it, expand those macros and write the result to another file. My last attempt that doesn't work is the following:

echo "%{expand:%include %{SOURCE203}}" > expanded

If SOURCE203 contains the following:

%{_unitdir}/systemd-coredump.socket
%{_unitdir}/[email protected]

I want "expanded" to contain:

/usr/lib/systemd/system/systemd-coredump.socket
/usr/lib/systemd/system/[email protected]

All rpm macros defined in the spec file should be taken into account so shelling out to rpm --eval won't work I think.

Anyone able to help me out?

[Conan-Kudo]

This should do the trick:

cat > expanded <<EOF
%{expand:%include %{SOURCE203}}
EOF