cmdrewrite: add a utility function to make sure note is of valid format
Upcoming patches will add support to store a note on various evolution related
commands by storing that in obsmarker. Since the obsmarker metadata field can't
store things above 255 bytes, this patch introduces a function which will be
used to make sure note is under 255 bytes and does not contain newlines. We
don't want notes to be multilines.
#!/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