tags-cache: directly perform a monimal walk for hgtagsfnodescache warming
We do something narrower than the path retrieving data. So lets use dedicated
code instead.
This provides further useful speedup:
### data-env-vars.name = mozilla-try-2023-03-22-zstd-sparse-revlog
# benchmark.name = hg.debug.debug-update-cache
# bin-env-vars.hg.flavor = default
# bin-env-vars.hg.py-re2-module = default
# benchmark.variants.pre-state = warm
before-this-series: 19.947581
skip-fnode-filter: 18.916804 (-5.17%, -1.03)
use-rev-num: 17.493725 (-12.30%, -2.45)
this-changesets: 15.919466 (-20.19%, -4.03)
#testcases continuecommand continueflag
#if continueflag
$ cat >> $HGRCPATH <<EOF
> [alias]
> continue = rebase --continue
> EOF
#endif
$ . "$TESTDIR/narrow-library.sh"
create full repo
$ hg init master
$ cd master
$ mkdir inside
$ echo inside1 > inside/f1
$ echo inside2 > inside/f2
$ mkdir outside
$ echo outside1 > outside/f1
$ echo outside2 > outside/f2
$ hg ci -Aqm 'initial'
$ echo modified > inside/f1
$ hg ci -qm 'modify inside/f1'
$ hg update -q 0
$ echo modified2 > inside/f2
$ hg ci -qm 'modify inside/f2'
$ hg update -q 0
$ echo modified > outside/f1
$ hg ci -qm 'modify outside/f1'
$ hg update -q 0
$ echo modified2 > outside/f1
$ hg ci -qm 'conflicting outside/f1'
$ cd ..
$ hg clone --narrow ssh://user@dummy/master narrow --include inside
requesting all changes
adding changesets
adding manifests
adding file changes
added 5 changesets with 4 changes to 2 files (+3 heads)
new changesets *:* (glob)
updating to branch default
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd narrow
$ cat >> $HGRCPATH <<EOF
> [extensions]
> rebase=
> EOF
$ hg update -q 0
Can rebase onto commit where no files outside narrow spec are involved
$ hg update -q 0
$ echo modified > inside/f2
$ hg ci -qm 'modify inside/f2'
$ hg rebase -d 'desc("modify inside/f1")'
rebasing 5:c2f36d04e05d tip "modify inside/f2"
saved backup bundle to $TESTTMP/narrow/.hg/strip-backup/*-rebase.hg (glob)
Can rebase onto conflicting changes inside narrow spec
$ hg update -q 0
$ echo conflicting > inside/f1
$ hg ci -qm 'conflicting inside/f1'
$ hg rebase -d 'desc("modify inside/f1")' 2>&1 | grep -E -v '(warning:|incomplete!)'
rebasing 6:cdce97fbf653 tip "conflicting inside/f1"
merging inside/f1
unresolved conflicts (see 'hg resolve', then 'hg rebase --continue')
$ echo modified3 > inside/f1
$ hg resolve -m 2>&1 | grep -v continue:
(no more unresolved files)
$ hg continue
rebasing 6:cdce97fbf653 tip "conflicting inside/f1"
saved backup bundle to $TESTTMP/narrow/.hg/strip-backup/*-rebase.hg (glob)
Can rebase onto non-conflicting changes outside narrow spec
$ hg update -q 0
$ echo modified > inside/f2
$ hg ci -qm 'modify inside/f2'
$ hg rebase -d 'desc("modify outside/f1")'
rebasing 7:c2f36d04e05d tip "modify inside/f2"
saved backup bundle to $TESTTMP/narrow/.hg/strip-backup/*-rebase.hg (glob)
Rebase interrupts on conflicting changes outside narrow spec
$ hg update -q 'desc("conflicting outside/f1")'
$ hg phase -f -d .
$ hg rebase -d 'desc("modify outside/f1")'
rebasing 4:707c035aadb6 "conflicting outside/f1"
abort: conflict in file 'outside/f1' is outside narrow clone
[20]