Mercurial > hg
view tests/test-convert-bzr-ghosts.t @ 33269:ead6749354e1
phabricator: try to fetch differential revisions in batch
Previously, we read Differential Revisions one by one by calling
`differential.query`.
Fetching them one by one is suboptimal. Unfortunately, there is no Conduit
API that allows us to get a stack of diffids using a single API call.
This patch tries to be smarter using a simple heuristic: when fetching D59
as a stack, previous IDs like D51, D52, D53, ..., D58 are likely belonging
to a same stack so just fetch them as well. Since `differential.query` only
returns cheap metadata without expensive diff content, it shouldn't be a big
problem for the server.
Using a test Phabricator instance, this patch reduces `phabread` reading a
10 patch stack from about 13 to 30 seconds to 8 seconds.
author | Jun Wu <quark@fb.com> |
---|---|
date | Tue, 04 Jul 2017 16:36:48 -0700 |
parents | 75be14993fda |
children | 7a88643bc0ef |
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#require bzr $ . "$TESTDIR/bzr-definitions" $ cat > ghostcreator.py <<EOF > import sys > from bzrlib import workingtree > wt = workingtree.WorkingTree.open('.') > > message, ghostrev = sys.argv[1:] > wt.set_parent_ids(wt.get_parent_ids() + [ghostrev]) > wt.commit(message) > EOF ghost revisions $ mkdir test-ghost-revisions $ cd test-ghost-revisions $ bzr init -q source $ cd source $ echo content > somefile $ bzr add -q somefile $ bzr commit -q -m 'Initial layout setup' $ echo morecontent >> somefile $ $PYTHON ../../ghostcreator.py 'Commit with ghost revision' ghostrev $ cd .. $ hg convert source source-hg initializing destination source-hg repository scanning source... sorting... converting... 1 Initial layout setup 0 Commit with ghost revision $ glog -R source-hg o 1@source "Commit with ghost revision" files: somefile | o 0@source "Initial layout setup" files: somefile $ cd ..