{{{
rpm -qp --qf '%{sourcerpm}\n' i386/* i686/* | sort | uniq > rpms.i386
rpm -qp --qf '%{sourcerpm}\n' x86_64/* | sort | uniq > rpms.x86_64
}}}

- To check if there are rpms in a repo coming from different version of
  src.rpm:
{{{
rpm -qp --qf '%{sourcerpm}\n' * | sort|uniq | awk -F- 'BEGIN {OFS="-"} {NF=NF-2; print $0}' | uniq -d
}}}
or
{{{
find . -name \*.rpm -exec rpm -qp --qf '%{sourcerpm}\n' '{}' \; | sort|uniq | awk -F- 'BEGIN {OFS="-"} {NF=NF-2; print $0}' | uniq -d
}}}

 - To check for obsoletes:
{{{
	rpm --obsoletes -qp *| perl -pi -e 's|\(none\)||g' | sort | uniq > /tmp/obsoletes.txt
}}}
  remove all comparisons from above - ends up in /tmp/obsoletes.txt-3
{{{
	ls *rpm | sort > /tmp/a.txt
	for i in `cat /tmp/obsoletes.txt-3`; do grep "^$i$" /tmp/a.txt ; done|sort|uniq
}}}
 - to make sure all the debuginfo are there and only those that need to be
{{{
find i386 -name \*.rpm -exec rpm -qp --qf '%{sourcerpm}\n' '{}' \; |sort|uniq > /tmp/src.rpm-i386
find x86_64 -name \*.rpm -exec rpm -qp --qf '%{sourcerpm}\n' '{}' \; |sort|uniq > /tmp/src.rpm-x86_64
}}}
then compare them - should be pretty similar with very few differences
{{{
diff -urN /tmp/src.rpm*
}}}