On Tue, 26 Nov 2019, Eric S. Raymond wrote: > Joseph Myers <jos...@codesourcery.com>: > > A further note: in a previous run of the conversion I didn't see any > > emptycommit-* tags. In my most recent conversion run, I see 4070 such > > tags. How do I tell reposurgeon never to create such tags? Or should I > > add a tag deletion command for them in gcc.lift, once tag deletion is > > working reliably? > > That's what tag deletion by regexp is for.
One more observation on that: in my last test conversion, deleting the emptycommit-* tags took over 7 hours (i.e. the bulk of the time for the conversion was spent just deleting those tags). Deleting tags matching /-root$/ took about half an hour. So I think there is a performance issue somewhere with (some cases of) tag deletion by regexp, at least when the regexp matches a large number of tags (but some other bulk deletions seem to run much quicker per tag). Taking a few seconds per tag is fine for an individual deletion, but a problem when you want to delete 4070 tags at once. -- Joseph S. Myers jos...@codesourcery.com
