Mercurial > hg
view tests/test-commit-multiple.t @ 44528:c8891bca40fb
rust-status: add bare `hg status` support in hg-core
A lot of performance remains to be gained, most notably by doing more things
in parallel, but also by caching, not falling back to Python but switching
to another regex engine, etc..
I have measured on multiple repositories that this change, when in combination
with the next two patches, improve bare `hg status` performance, and has no
observable impact when falling back (because it does so early).
On the Netbeans repository:
C: 840ms
Rust+C: 556ms
Mozilla Central with the one pattern that causes a fallback removed:
C: 2.315s
Rust+C: 1.700 s
Differential Revision: https://phab.mercurial-scm.org/D7929
author | Raphaël Gomès <rgomes@octobus.net> |
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date | Fri, 17 Jan 2020 15:43:46 +0100 |
parents | 9d38b4b52061 |
children |
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# reproduce issue2264, issue2516 create test repo $ cat <<EOF >> $HGRCPATH > [extensions] > transplant = > EOF $ hg init repo $ cd repo $ template="{rev} {desc|firstline} [{branch}]\n" # we need to start out with two changesets on the default branch # in order to avoid the cute little optimization where transplant # pulls rather than transplants add initial changesets $ echo feature1 > file1 $ hg ci -Am"feature 1" adding file1 $ echo feature2 >> file2 $ hg ci -Am"feature 2" adding file2 # The changes to 'bugfix' are enough to show the bug: in fact, with only # those changes, it's a very noisy crash ("RuntimeError: nothing # committed after transplant"). But if we modify a second file in the # transplanted changesets, the bug is much more subtle: transplant # silently drops the second change to 'bugfix' on the floor, and we only # see it when we run 'hg status' after transplanting. Subtle data loss # bugs are worse than crashes, so reproduce the subtle case here. commit bug fixes on bug fix branch $ hg branch fixes marked working directory as branch fixes (branches are permanent and global, did you want a bookmark?) $ echo fix1 > bugfix $ echo fix1 >> file1 $ hg ci -Am"fix 1" adding bugfix $ echo fix2 > bugfix $ echo fix2 >> file1 $ hg ci -Am"fix 2" $ hg log -G --template="$template" @ 3 fix 2 [fixes] | o 2 fix 1 [fixes] | o 1 feature 2 [default] | o 0 feature 1 [default] transplant bug fixes onto release branch $ hg update 0 1 files updated, 0 files merged, 2 files removed, 0 files unresolved $ hg branch release marked working directory as branch release $ hg transplant 2 3 applying [0-9a-f]{12} (re) [0-9a-f]{12} transplanted to [0-9a-f]{12} (re) applying [0-9a-f]{12} (re) [0-9a-f]{12} transplanted to [0-9a-f]{12} (re) $ hg log -G --template="$template" @ 5 fix 2 [release] | o 4 fix 1 [release] | | o 3 fix 2 [fixes] | | | o 2 fix 1 [fixes] | | | o 1 feature 2 [default] |/ o 0 feature 1 [default] $ hg status $ hg status --rev 0:4 M file1 A bugfix $ hg status --rev 4:5 M bugfix M file1 now test that we fixed the bug for all scripts/extensions $ cat > $TESTTMP/committwice.py <<__EOF__ > import time > from mercurial import hg, match, node, ui as uimod > > def replacebyte(fn, b): > f = open(fn, "rb+") > f.seek(0, 0) > f.write(b) > f.close() > > def printfiles(repo, rev): > repo.ui.status(b"revision %d files: [%s]\n" > % (rev, b', '.join(b"'%s'" % f > for f in repo[rev].files()))) > > repo = hg.repository(uimod.ui.load(), b'.') > assert len(repo) == 6, "initial: len(repo): %d, expected: 6" % len(repo) > > replacebyte(b"bugfix", b"u") > time.sleep(2) > try: > repo.ui.status(b"PRE: len(repo): %d\n" % len(repo)) > wlock = repo.wlock() > lock = repo.lock() > replacebyte(b"file1", b"x") > repo.commit(text=b"x", user=b"test", date=(0, 0)) > replacebyte(b"file1", b"y") > repo.commit(text=b"y", user=b"test", date=(0, 0)) > repo.ui.status(b"POST: len(repo): %d\n" % len(repo)) > finally: > lock.release() > wlock.release() > printfiles(repo, 6) > printfiles(repo, 7) > __EOF__ $ "$PYTHON" $TESTTMP/committwice.py PRE: len(repo): 6 POST: len(repo): 8 revision 6 files: ['bugfix', 'file1'] revision 7 files: ['file1'] Do a size-preserving modification outside of that process $ echo abcd > bugfix $ hg status M bugfix $ hg log --template "{rev} {desc} {files}\n" -r5: 5 fix 2 bugfix file1 6 x bugfix file1 7 y file1 $ cd ..