Mercurial > hg
view tests/test-amend-subrepo.t @ 41247:a89b20a49c13
rust-cpython: using MissingAncestors from Python code
As precedently done with LazyAncestors on cpython.rs, we test for the
presence of the 'rustext' module.
incrementalmissingrevs() has two callers within the Mercurial core:
`setdiscovery.partialdiscovery` and the `only()` revset.
This move shows a significant discovery performance improvement
in cases where the baseline is slow: using perfdiscovery on the PyPy
repos, prepared with `contrib/discovery-helper <repo> 50 100`, we
get averaged medians of 403ms with the Rust version vs 742ms without
(about 45% better).
But there are still indications that performance can be worse in cases
the baseline is fast, possibly due to the conversion from Python to
Rust and back becoming the bottleneck. We could measure this on
mozilla-central in cases were the delta is just a few changesets.
This requires confirmation, but if that's the reason, then an
upcoming `partialdiscovery` fully in Rust should solve the problem.
Differential Revision: https://phab.mercurial-scm.org/D5551
author | Georges Racinet <georges.racinet@octobus.net> |
---|---|
date | Fri, 30 Nov 2018 14:35:57 +0100 |
parents | 4441705b7111 |
children | 4ea21df312ec |
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#testcases obsstore-off obsstore-on $ cat << EOF >> $HGRCPATH > [extensions] > amend = > EOF #if obsstore-on $ cat << EOF >> $HGRCPATH > [experimental] > evolution.createmarkers = True > EOF #endif Prepare parent repo ------------------- $ hg init r $ cd r $ echo a > a $ hg ci -Am0 adding a Link first subrepo ------------------ $ echo 's = s' >> .hgsub $ hg add .hgsub $ hg init s amend without .hgsub $ hg amend s abort: can't commit subrepos without .hgsub [255] amend with subrepo $ hg amend saved backup bundle to * (glob) (obsstore-off !) $ hg status --change . A .hgsub A .hgsubstate A a $ cat .hgsubstate 0000000000000000000000000000000000000000 s Update subrepo -------------- add new commit to be amended $ echo a >> a $ hg ci -m1 amend with dirty subrepo $ echo a >> s/a $ hg add -R s adding s/a $ hg amend abort: uncommitted changes in subrepository "s" (use --subrepos for recursive commit) [255] amend with modified subrepo $ hg ci -R s -m0 $ hg amend saved backup bundle to * (glob) (obsstore-off !) $ hg status --change . M .hgsubstate M a $ cat .hgsubstate f7b1eb17ad24730a1651fccd46c43826d1bbc2ac s revert subrepo change $ hg up -R s -q null $ hg amend saved backup bundle to * (glob) (obsstore-off !) $ hg status --change . M a Link another subrepo -------------------- add new commit to be amended $ echo b >> b $ hg ci -qAm2 also checks if non-subrepo change is included $ echo a >> a amend with another subrepo $ hg init t $ echo b >> t/b $ hg ci -R t -Am0 adding b $ echo 't = t' >> .hgsub $ hg amend saved backup bundle to * (glob) (obsstore-off !) $ hg status --change . M .hgsub M .hgsubstate M a A b $ cat .hgsubstate 0000000000000000000000000000000000000000 s bfb1a4fb358498a9533dabf4f2043d94162f1fcd t Unlink one subrepo ------------------ add new commit to be amended $ echo a >> a $ hg ci -m3 amend with one subrepo dropped $ echo 't = t' > .hgsub $ hg amend saved backup bundle to * (glob) (obsstore-off !) $ hg status --change . M .hgsub M .hgsubstate M a $ cat .hgsubstate bfb1a4fb358498a9533dabf4f2043d94162f1fcd t Unlink subrepos completely -------------------------- add new commit to be amended $ echo a >> a $ hg ci -m3 amend with .hgsub removed $ hg rm .hgsub $ hg amend saved backup bundle to * (glob) (obsstore-off !) $ hg status --change . M a R .hgsub R .hgsubstate $ cd ..