SPEC: initrd sub-package fixups and exclude i686 arch on el

There is no i686 golang package on CentOS Stream and RHEL, which makes
our builds fail on these distributions.

Also, make sure that osbuild depends on the same version of
osbuild-initrd, so that one can't mix and match different version of
these packages.

Lastly, move the 'golang' BuildRequires to the initrd sub-package
which is the one that needs it. Also use the golang macros that we use
in other projects.

Signed-off-by: Tomáš Hozza <thozza@redhat.com>

Author: thozza

osbuild.spec

@@ -20,12 +20,16 @@ Source0:        %{forgesource}
 Source1:        https://github.com/osbuild/initrd/releases/download/%{osbuild_initrd_version}/osbuild-initrd-%{osbuild_initrd_version}.tar.gz
 Summary:        A build system for OS images
 
+# There is no golang support for i686 on centos and RHEL
+%if 0%{?rhel} || 0%{?centos}
+ExcludeArch:    i686
+%endif
+
 BuildRequires:  make
 BuildRequires:  python3-devel
 BuildRequires:  python3-docutils
 BuildRequires:  python3-setuptools
 BuildRequires:  systemd
-BuildRequires:  golang
 
 # for tests
 BuildRequires:  python3-iniparse
@@ -55,7 +59,7 @@ Requires:       util-linux
 Requires:       python3-%{pypi_name} = %{version}-%{release}
 Requires:       (%{name}-selinux if selinux-policy-%{selinuxtype})
 Requires:       python3-librepo
-Requires:       %{name}-initrd
+Requires:       %{name}-initrd = %{version}-%{release}
 
 # This is required for `osbuild`, for RHEL-10 and above
 # the stdlib tomllib module can be used instead
@@ -124,6 +128,7 @@ to build OSTree based images.
 
 %package        initrd
 Summary:        osbuild initrd for vm support
+BuildRequires:  %{?go_compiler:compiler(go-compiler)}%{!?go_compiler:golang}
 
 %description    initrd
 Osbuild initrd used for in-vm support.