Mercurial > hg
view tests/test-push-r.t @ 20275:2123d27ff75d
backout: avoid update on simple case.
Before the changeset the backout process was:
1) go to <target>
2) revert to <target> parent
3) update back to changeset we came from
The two update steps can takes a very long time to move back and forth unrelated
file change between <target> and current working directory.
The new process is just merging current working directory with the parent of
<target> using <target> as ancestor. This give the very same result but skip
the two updates. On big repo with a lot of files and changes that save a lots of
time (x20 for one week window).
The "merge" version (hg backout --merge) is still done with upgrades. We could
imagine using in memory commit to speed it up but this is another fish.
| author | Pierre-Yves David <pierre-yves.david@fb.com> |
|---|---|
| date | Wed, 08 Jan 2014 14:53:46 -0800 |
| parents | f2719b387380 |
| children | 24ea47037186 |
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$ hg init test $ cd test $ hg unbundle "$TESTDIR/bundles/remote.hg" adding changesets adding manifests adding file changes added 9 changesets with 7 changes to 4 files (+1 heads) (run 'hg heads' to see heads, 'hg merge' to merge) $ hg up tip 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd .. $ for i in 0 1 2 3 4 5 6 7 8; do > echo > mkdir test-"$i" > hg --cwd test-"$i" init > hg -R test push -r "$i" test-"$i" > cd test-"$i" > hg verify > cd .. > done pushing to test-0 searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files checking changesets checking manifests crosschecking files in changesets and manifests checking files 1 files, 1 changesets, 1 total revisions pushing to test-1 searching for changes adding changesets adding manifests adding file changes added 2 changesets with 2 changes to 1 files checking changesets checking manifests crosschecking files in changesets and manifests checking files 1 files, 2 changesets, 2 total revisions pushing to test-2 searching for changes adding changesets adding manifests adding file changes added 3 changesets with 3 changes to 1 files checking changesets checking manifests crosschecking files in changesets and manifests checking files 1 files, 3 changesets, 3 total revisions pushing to test-3 searching for changes adding changesets adding manifests adding file changes added 4 changesets with 4 changes to 1 files checking changesets checking manifests crosschecking files in changesets and manifests checking files 1 files, 4 changesets, 4 total revisions pushing to test-4 searching for changes adding changesets adding manifests adding file changes added 2 changesets with 2 changes to 1 files checking changesets checking manifests crosschecking files in changesets and manifests checking files 1 files, 2 changesets, 2 total revisions pushing to test-5 searching for changes adding changesets adding manifests adding file changes added 3 changesets with 3 changes to 1 files checking changesets checking manifests crosschecking files in changesets and manifests checking files 1 files, 3 changesets, 3 total revisions pushing to test-6 searching for changes adding changesets adding manifests adding file changes added 4 changesets with 5 changes to 2 files checking changesets checking manifests crosschecking files in changesets and manifests checking files 2 files, 4 changesets, 5 total revisions pushing to test-7 searching for changes adding changesets adding manifests adding file changes added 5 changesets with 6 changes to 3 files checking changesets checking manifests crosschecking files in changesets and manifests checking files 3 files, 5 changesets, 6 total revisions pushing to test-8 searching for changes adding changesets adding manifests adding file changes added 5 changesets with 5 changes to 2 files checking changesets checking manifests crosschecking files in changesets and manifests checking files 2 files, 5 changesets, 5 total revisions $ cd test-8 $ hg pull ../test-7 pulling from ../test-7 searching for changes adding changesets adding manifests adding file changes added 4 changesets with 2 changes to 3 files (+1 heads) (run 'hg heads' to see heads, 'hg merge' to merge) $ hg verify checking changesets checking manifests crosschecking files in changesets and manifests checking files 4 files, 9 changesets, 7 total revisions $ cd ..