cache: introduce a changelogsourcebase class
This abstract class will help code that need a cache tracking the changelog
content (eg: the branchmap cache). The cache key used is the same as what the
branchmap uses.
This code was headed for core during the 4.3 cycle but never made it there. So
we starts with a copy in the evolve repository.
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
|
| o 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