rust-changelog: start parsing changeset data
This patch makes `ChangelogRevisionData` do some coarse, line-level
splitting of the changeset data into manifest node, user, timestamp,
files list, and description. There are no (in-tree) users of these
functions yet, but I've added tests to prevent regressions. We'll
surely add callers at some point.
Differential Revision: https://phab.mercurial-scm.org/D12439
mkcommit() {
name="$1"
shift
echo "$name" > "$name"
hg add "$name"
hg ci -m "$name" "$@"
}
getid() {
hg log --hidden --template '{node}\n' --rev "$1"
}
cat >> $HGRCPATH <<EOF
[alias]
debugobsolete=debugobsolete -d '0 0'
EOF