commit: use `dirstate.change_files` to scope the associated `addremove`
This was significantly more complicated than I expected, because multiple
extensions get in the way.
I introduced a context that lazily open the transaction and associated context
to work around these complication. See the inline documentation for details.
Introducing the wrapping transaction remove the need for dirstate-guard (one of
the ultimate goal of all this), and slightly affect the result of a `hg
rollback` after a `hg commit --addremove`. That last part is deemed fine. It
aligns the behavior with what happens after a failed `hg commit --addremove` and
nobody should be using `hg rollback` anyway.
The small output change in the test come from the different transaction timing
and fact the transaction now backup the dirstate before the addremove, which
might mean "no file to backup" when the repository starts from an empty state.
$ . "$TESTDIR/narrow-library.sh"
create full repo
$ hg init master
$ cd master
$ echo init > init
$ hg ci -Aqm 'initial'
$ mkdir inside
$ echo inside > inside/f1
$ mkdir outside
$ echo outside > outside/f1
$ hg ci -Aqm 'add inside and outside'
$ echo modified > inside/f1
$ hg ci -qm 'modify inside'
$ echo modified > outside/f1
$ hg ci -qm 'modify outside'
$ cd ..
$ hg clone --narrow ssh://user@dummy/master narrow --include inside
requesting all changes
adding changesets
adding manifests
adding file changes
added 4 changesets with 2 changes to 1 files
new changesets *:* (glob)
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd narrow
$ hg debugindex -c
rev linkrev nodeid p1-nodeid p2-nodeid
0 0 9958b1af2add 000000000000 000000000000
1 1 2db4ce2a3bfe 9958b1af2add 000000000000
2 2 0980ee31a742 2db4ce2a3bfe 000000000000
3 3 4410145019b7 0980ee31a742 000000000000
$ hg update -q 0
Can update to revision with changes inside
$ hg update -q 'desc("add inside and outside")'
$ hg update -q 'desc("modify inside")'
$ find *
inside
inside/f1
$ cat inside/f1
modified
Can update to revision with changes outside
$ hg update -q 'desc("modify outside")'
$ find *
inside
inside/f1
$ cat inside/f1
modified
Can update with a deleted file inside
$ hg rm inside/f1
$ hg update -q 'desc("modify inside")'
$ hg update -q 'desc("modify outside")'
$ hg update -q 'desc("initial")'
$ hg update -q 'desc("modify inside")'
Can update with a moved file inside
$ hg mv inside/f1 inside/f2
$ hg update -q 'desc("modify outside")'
$ hg update -q 'desc("add inside and outside")'
$ hg update -q 'desc("modify inside")'