test-git-import: test patching existing copy targets

httprepo: handle large lengths by bypassing the len() operator

workingctx.remove: don't stat files again after unlinking we already know at this point that they have been unlinked

httprepo: send URL redirection notices to stderr (issue2828)

record: alias qrecord to qnew -i/--interactive

record: add qrefresh -i/--interactive interactively select changes to refresh

record: add an option to backup all wc modifications Also, don't create a backup dir if we have no files to backup. This is essential for qrefresh --interactive. Since we can't select individual files to qrefresh without eliminating already present changes, we have to backup all changes in the working copy to avoid refreshing unaccepted hunks. (thanks to Patrick for the idea)

record: check patch name is valid before prompting in qrecord

mq: use checkpatchname This also fixes a bug where qrename would allow renaming a patch to a reserved name.

mq: wrap patch file name checks in a function