compat: fix fixedcopytracing compatibility with mercurial 4.8 and narrow
Mercurial 4.8 version of _fullcopytracing includes some new narrow code. As
https://phab.mercurial-scm.org/D3896 has not yet landed, update
fixedcopytracing behind a version detection condition. This was spotted by
Augie Fackler.
#!/bin/bash
set -euox pipefail
unset GREP_OPTIONS
NOTOPIC="--config experimental.topic-mode=ignore"
compatbranches=`hg branches --quiet | grep 'mercurial-' | grep -v ':' | sort -n --reverse`
prev='stable'
for branch in $compatbranches; do
hg up $branch
hg merge $prev
hg commit -m "test-compat: merge $prev into $branch"
prev=$branch
done