compat: add a fixed version of mergecopies for hg<=4.3
In hg<=4.3, copies._fullcopytracing() does not exist and we have to wrap
copies.mergecopies() to fix the AssertionError coming from core.
Check that evolve shows error while handling split commits
--------------------------------------
$ cat >> $HGRCPATH <<EOF
> [defaults]
> amend=-d "0 0"
> fold=-d "0 0"
> [web]
> push_ssl = false
> allow_push = *
> [phases]
> publish = False
> [diff]
> git = 1
> unified = 0
> [ui]
> logtemplate = {rev}:{node|short}@{branch}({phase}) {desc|firstline}\n
> [extensions]
> EOF
$ echo "evolve=$(echo $(dirname $TESTDIR))/hgext3rd/evolve/" >> $HGRCPATH
$ mkcommit() {
> echo "$1" > "$1"
> hg add "$1"
> hg ci -m "add $1"
> }
$ hg init split
$ cd split
$ mkcommit aa
Create a split commit
$ printf "oo" > oo;
$ printf "pp" > pp;
$ hg add oo pp
$ hg commit -m "oo+pp"
$ mkcommit uu
$ hg up 0
0 files updated, 0 files merged, 3 files removed, 0 files unresolved
$ printf "oo" > oo;
$ hg add oo
$ hg commit -m "_oo"
created new head
$ printf "pp" > pp;
$ hg add pp
$ hg commit -m "_pp"
$ hg prune --succ "desc(_oo) + desc(_pp)" -r "desc('oo+pp')" --split
1 changesets pruned
1 new orphan changesets
$ hg log -G
@ 4:d0dcf24cddd3@default(draft) _pp
|
o 3:a7fdfda64c08@default(draft) _oo
|
| * 2:f52200b086ca@default(draft) add uu
| |
| x 1:d55647aaa0c6@default(draft) oo+pp
|/
o 0:58663bb03074@default(draft) add aa
$ hg evolve --rev "0::"
move:[2] add uu
atop:[4] _pp
working directory is now at 6f5bbe2e3df3