ATM repoman complains when adding an ebuild with stable keywords. Would it be possible to extend that to adding a stable keyword to an existing ebuild? Thanks
One annoying part about implementing this type of check is that repoman has to analyse the `cvs diff` output or similar in order to check for such a change. This makes it somewhat difficult to implement cleanly (lots of commonly requested checks share the same sort of difficulty).
repoman support has been removed per bug 835013. Please file a new bug (or, I suppose, reopen this one) if you feel this check is still applicable to pkgcheck and doesn't already exist.
pkgcheck has DirectStableKeywords.