stream-clone: disable gc for the entry listing section for the v2 format
This is similar to the change we did for the v3 format in 6e4c8366c5ce.
The benchmark bellow show this gives us a notable gains, especially on larger
repositories.
### benchmark.name = hg.perf.stream-locked-section
# benchmark.name = hg.perf.stream-locked-section
# bin-env-vars.hg.flavor = default
# bin-env-vars.hg.py-re2-module = default
# benchmark.variants.version = v2
## data-env-vars.name = pypy-2018-08-01-zstd-sparse-revlog
5e931bf8707c: 0.503820 ~~~~~
1106d1bf695e: 0.470078 (-6.70%, -0.03)
## data-env-vars.name = pypy-2024-03-22-zstd-sparse-revlog
5e931bf8707c: 0.535756 ~~~~~
1106d1bf695e: 0.490249 (-8.49%, -0.05)
## data-env-vars.name = heptapod-public-2024-03-25-zstd-sparse-revlog
5e931bf8707c: 1.327041 ~~~~~
1106d1bf695e: 1.174636 (-11.48%, -0.15)
## data-env-vars.name = netbeans-2018-08-01-zstd-sparse-revlog
5e931bf8707c: 2.439158 ~~~~~
1106d1bf695e: 2.220515 (-8.96%, -0.22)
## data-env-vars.name = netbeans-2019-11-07-zstd-sparse-revlog
5e931bf8707c: 2.630794 ~~~~~
1106d1bf695e: 2.261473 (-14.04%, -0.37)
## data-env-vars.name = mozilla-central-2018-08-01-zstd-sparse-revlog
5e931bf8707c: 5.769002 ~~~~~
1106d1bf695e: 5.062000 (-12.26%, -0.71)
## data-env-vars.name = mozilla-try-2019-02-18-zstd-sparse-revlog
5e931bf8707c: 13.351750 ~~~~~
1106d1bf695e: 12.346655 (-7.53%, -1.01)
## data-env-vars.name = mozilla-central-2024-03-22-zstd-sparse-revlog
5e931bf8707c: 10.772939 ~~~~~
1106d1bf695e: 9.495407 (-11.86%, -1.28)
## data-env-vars.name = mozilla-unified-2024-03-22-zstd-sparse-revlog
5e931bf8707c: 10.864297 ~~~~~
1106d1bf695e: 9.475597 (-12.78%, -1.39)
## data-env-vars.name = mozilla-try-2023-03-22-zstd-sparse-revlog
5e931bf8707c: 17.448335 ~~~~~
1106d1bf695e: 16.027474 (-8.14%, -1.42)
===============================
Test the "tracked hint" feature
===============================
The tracked hint feature provide a file that get updated when the set of tracked
files get updated.
basic setup
$ cat << EOF >> $HGRCPATH
> [format]
> use-dirstate-tracked-hint=yes
> EOF
$ hg init tracked-hint-test
$ cd tracked-hint-test
$ hg debugbuilddag '.+10' -n
$ hg log -G -T '{rev} {desc} {files}\n'
o 10 r10 nf10
|
o 9 r9 nf9
|
o 8 r8 nf8
|
o 7 r7 nf7
|
o 6 r6 nf6
|
o 5 r5 nf5
|
o 4 r4 nf4
|
o 3 r3 nf3
|
o 2 r2 nf2
|
o 1 r1 nf1
|
o 0 r0 nf0
$ hg up tip
11 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg files
nf0
nf1
nf10
nf2
nf3
nf4
nf5
nf6
nf7
nf8
nf9
key-file exists
-----------
The tracked hint file should exist
$ ls -1 .hg/dirstate*
.hg/dirstate
.hg/dirstate-tracked-hint
key-file stay the same if the tracked set is unchanged
------------------------------------------------------
(copy its content for later comparison)
$ cp .hg/dirstate-tracked-hint ../key-bck
$ echo foo >> nf0
$ sleep 1
$ hg status
M nf0
$ diff --brief .hg/dirstate-tracked-hint ../key-bck
$ hg revert -C nf0
$ sleep 1
$ hg status
$ diff --brief .hg/dirstate-tracked-hint ../key-bck
key-file change if the tracked set is changed manually
------------------------------------------------------
adding a file to tracking
$ cp .hg/dirstate-tracked-hint ../key-bck
$ echo x > x
$ hg add x
$ diff --brief .hg/dirstate-tracked-hint ../key-bck
Files .hg/dirstate-tracked-hint and ../key-bck differ
[1]
remove a file from tracking
(forget)
$ cp .hg/dirstate-tracked-hint ../key-bck
$ hg forget x
$ diff --brief .hg/dirstate-tracked-hint ../key-bck
Files .hg/dirstate-tracked-hint and ../key-bck differ
[1]
(remove)
$ cp .hg/dirstate-tracked-hint ../key-bck
$ hg remove nf1
$ diff --brief .hg/dirstate-tracked-hint ../key-bck
Files .hg/dirstate-tracked-hint and ../key-bck differ
[1]
key-file changes on revert (when applicable)
--------------------------------------------
$ cp .hg/dirstate-tracked-hint ../key-bck
$ hg status
R nf1
? x
$ hg revert --all
undeleting nf1
$ hg status
? x
$ diff --brief .hg/dirstate-tracked-hint ../key-bck
Files .hg/dirstate-tracked-hint and ../key-bck differ
[1]
`hg update` does affect the key-file (when needed)
--------------------------------------------------
update changing the tracked set
(removing)
$ cp .hg/dirstate-tracked-hint ../key-bck
$ hg status --rev . --rev '.#generations[-1]'
R nf10
$ hg up '.#generations[-1]'
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ diff --brief .hg/dirstate-tracked-hint ../key-bck
Files .hg/dirstate-tracked-hint and ../key-bck differ
[1]
(adding)
$ cp .hg/dirstate-tracked-hint ../key-bck
$ hg status --rev . --rev '.#generations[1]'
A nf10
$ hg up '.#generations[1]'
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ diff --brief .hg/dirstate-tracked-hint ../key-bck
Files .hg/dirstate-tracked-hint and ../key-bck differ
[1]
update not affecting the tracked set
$ echo foo >> nf0
$ hg commit -m foo
$ cp .hg/dirstate-tracked-hint ../key-bck
$ hg status --rev . --rev '.#generations[-1]'
M nf0
$ hg up '.#generations[-1]'
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ diff --brief .hg/dirstate-tracked-hint ../key-bck
Test upgrade and downgrade
==========================
$ test -f .hg/dirstate-tracked-hint
$ hg debugrequires | grep 'tracked'
dirstate-tracked-key-v1
downgrade
$ hg debugupgraderepo --config format.use-dirstate-tracked-hint=no --run --quiet
upgrade will perform the following actions:
requirements
preserved: * (glob)
removed: dirstate-tracked-key-v1
no revlogs to process
$ test -f .hg/dirstate-tracked-hint
[1]
$ hg debugrequires | grep 'tracked'
[1]
upgrade
$ hg debugupgraderepo --config format.use-dirstate-tracked-hint=yes --run --quiet
upgrade will perform the following actions:
requirements
preserved: * (glob)
added: dirstate-tracked-key-v1
no revlogs to process
$ test -f .hg/dirstate-tracked-hint
$ hg debugrequires | grep 'tracked'
dirstate-tracked-key-v1
$ cd ..
Test automatic upgrade and downgrade
------------------------------------
create an initial repository
$ hg init auto-upgrade \
> --config format.use-dirstate-tracked-hint=no
$ hg debugbuilddag -R auto-upgrade --new-file .+5
$ hg -R auto-upgrade update
6 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg debugformat -R auto-upgrade | grep tracked
tracked-hint: no
upgrade it to dirstate-tracked-hint automatically
$ hg status -R auto-upgrade \
> --config format.use-dirstate-tracked-hint.automatic-upgrade-of-mismatching-repositories=yes \
> --config format.use-dirstate-tracked-hint=yes
automatically upgrading repository to the `tracked-hint` feature
(see `hg help config.format.use-dirstate-tracked-hint` for details)
$ hg debugformat -R auto-upgrade | grep tracked
tracked-hint: yes
rhg supports this feature
$ hg status -R auto-upgrade \
> --config format.use-dirstate-tracked-hint=yes --config rhg.on-unsupported=abort
downgrade it from dirstate-tracked-hint automatically
$ hg status -R auto-upgrade \
> --config format.use-dirstate-tracked-hint.automatic-upgrade-of-mismatching-repositories=yes \
> --config format.use-dirstate-tracked-hint=no
automatically downgrading repository from the `tracked-hint` feature
(see `hg help config.format.use-dirstate-tracked-hint` for details)
$ hg debugformat -R auto-upgrade | grep tracked
tracked-hint: no