match: teach diffmatcher.visitdir() to return 'all' if possible
This patch teaches differencematcher.visitdir() to return 'all' when
m1.visitdir() returns 'all' and m2 does not matches.
Before this patch, from a differencematcher.visitdir(), we always returned
either True or False. We never returned 'all' even when we can. This causes
problem when m1 and m2 of a differencematcher are themselves differencematcher.
In that case, we try to check:
`if self._m2_.visitdir(dir) == 'all'`
which will never be 'all' even though it can be.
This leads to iterating over a lot of sub-directory manifest, even though we
don't want to while extending a narrow clone. I am yet to measure the impact of
this but calculating manifest was taking ~50-60 seconds, so this should
definitely save some of time there.
Differential Revision: https://phab.mercurial-scm.org/D5814
Testing templating for rebase command
Setup
$ cat >> $HGRCPATH <<EOF
> [extensions]
> rebase=
> [experimental]
> evolution=createmarkers
> EOF
$ hg init repo
$ cd repo
$ for ch in a b c d; do echo foo > $ch; hg commit -Aqm "Added "$ch; done
$ hg log -G -T "{rev}:{node|short} {desc}"
@ 3:62615734edd5 Added d
|
o 2:28ad74487de9 Added c
|
o 1:29becc82797a Added b
|
o 0:18d04c59bb5d Added a
Getting the JSON output for nodechanges
$ hg rebase -s 2 -d 0 -q -Tjson
[
{
"nodechanges": {"28ad74487de9599d00d81085be739c61fc340652": ["849767420fd5519cf0026232411a943ed03cc9fb"], "62615734edd52f06b6fb9c2beb429e4fe30d57b8": ["df21b32134ba85d86bca590cbe9b8b7cbc346c53"]}
}
]
$ hg log -G -T "{rev}:{node|short} {desc}"
@ 5:df21b32134ba Added d
|
o 4:849767420fd5 Added c
|
| o 1:29becc82797a Added b
|/
o 0:18d04c59bb5d Added a
$ hg rebase -s 1 -d 5 -q -T "{nodechanges|json}"
{"29becc82797a4bc11ec8880b58eaecd2ab3e7760": ["d9d6773efc831c274eace04bc13e8e6412517139"]} (no-eol)
$ hg log -G -T "{rev}:{node|short} {desc}"
o 6:d9d6773efc83 Added b
|
@ 5:df21b32134ba Added d
|
o 4:849767420fd5 Added c
|
o 0:18d04c59bb5d Added a
$ hg rebase -s 6 -d 4 -q -T "{nodechanges % '{oldnode}:{newnodes % ' {node} '}'}"
d9d6773efc831c274eace04bc13e8e6412517139: f48cd65c6dc3d2acb55da54402a5b029546e546f (no-eol)