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view tests/test-stream-bundle-v2.t @ 38486:4c0683655599
namespaces: let namespaces override singlenode() definition
Some namespaces have multiple nodes per name (meaning that their
namemap() returns multiple nodes). One such namespace is the "topics"
namespace (from the evolve repo). We also have our own internal
namespace at Google (for review units) that has multiple nodes per
name. These namespaces may not want to use the default "pick highest
revnum" resolution that we currently use when resolving a name to a
single node. As an example, they may decide that `hg co <name>` should
check out a commit that's last in some sense even if an earlier commit
had just been amended and thus had a higher revnum [1]. This patch
gives the namespace the option to continue to return multiple nodes
and to override how the best node is picked. Allowing namespaces to
override that may also be useful as an optimization (it may be cheaper
for the namespace to find just that node).
I have been arguing (in D3715) for using all the nodes returned from
namemap() when resolving the symbol to a revset, so e.g. `hg log -r
stable` would resolve to *all* nodes on stable, not just the one with
the highest revnum (except that I don't actually think we should
change it for the branch namespace because of BC). Most people seem
opposed to that. If we decide not to do it, I think we can deprecate
the namemap() function in favor of the new singlenode() (I find it
weird to have namespaces, like the branch namespace, where namemap()
isn't nodemap()'s inverse). I therefore think this patch makes sense
regardless of what we decide on that issue.
[1] Actually, even the branch namespace would have wanted to override
singlenode() if it had supported multiple nodes. That's because
closes branch heads are mostly ignored, so "hg co default" will
not check out the highest-revnum node if that's a closed head.
Differential Revision: https://phab.mercurial-scm.org/D3852
author | Martin von Zweigbergk <martinvonz@google.com> |
---|---|
date | Tue, 26 Jun 2018 10:02:01 -0700 |
parents | d618558e4e8b |
children | 5763216ba311 |
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#require no-reposimplestore Test creating a consuming stream bundle v2 $ getmainid() { > hg -R main log --template '{node}\n' --rev "$1" > } $ cp $HGRCPATH $TESTTMP/hgrc.orig $ cat >> $HGRCPATH << EOF > [experimental] > evolution.createmarkers=True > evolution.exchange=True > bundle2-output-capture=True > [ui] > ssh="$PYTHON" "$TESTDIR/dummyssh" > logtemplate={rev}:{node|short} {phase} {author} {bookmarks} {desc|firstline} > [web] > push_ssl = false > allow_push = * > [phases] > publish=False > [extensions] > drawdag=$TESTDIR/drawdag.py > clonebundles= > EOF The extension requires a repo (currently unused) $ hg init main $ cd main $ hg debugdrawdag <<'EOF' > E > | > D > | > C > | > B > | > A > EOF $ hg bundle -a --type="none-v2;stream=v2" bundle.hg $ hg debugbundle bundle.hg Stream params: {} stream2 -- {bytecount: 1693, filecount: 11, requirements: dotencode%2Cfncache%2Cgeneraldelta%2Crevlogv1%2Cstore} (mandatory: True) $ hg debugbundle --spec bundle.hg none-v2;stream=v2;requirements%3Ddotencode%2Cfncache%2Cgeneraldelta%2Crevlogv1%2Cstore Test that we can apply the bundle as a stream clone bundle $ cat > .hg/clonebundles.manifest << EOF > http://localhost:$HGPORT1/bundle.hg BUNDLESPEC=`hg debugbundle --spec bundle.hg` > EOF $ hg serve -d -p $HGPORT --pid-file hg.pid --accesslog access.log $ cat hg.pid >> $DAEMON_PIDS $ "$PYTHON" $TESTDIR/dumbhttp.py -p $HGPORT1 --pid http.pid $ cat http.pid >> $DAEMON_PIDS $ cd .. $ hg clone http://localhost:$HGPORT streamv2-clone-implicit --debug using http://localhost:$HGPORT/ sending capabilities command sending clonebundles command applying clone bundle from http://localhost:$HGPORT1/bundle.hg bundle2-input-bundle: with-transaction bundle2-input-part: "stream2" (params: 3 mandatory) supported applying stream bundle 11 files to transfer, 1.65 KB of data starting 4 threads for background file closing (?) starting 4 threads for background file closing (?) adding [s] data/A.i (66 bytes) adding [s] data/B.i (66 bytes) adding [s] data/C.i (66 bytes) adding [s] data/D.i (66 bytes) adding [s] data/E.i (66 bytes) adding [s] 00manifest.i (584 bytes) adding [s] 00changelog.i (595 bytes) adding [s] phaseroots (43 bytes) adding [c] branch2-served (94 bytes) adding [c] rbc-names-v1 (7 bytes) adding [c] rbc-revs-v1 (40 bytes) transferred 1.65 KB in \d\.\d seconds \(.*/sec\) (re) bundle2-input-part: total payload size 1840 bundle2-input-bundle: 0 parts total finished applying clone bundle query 1; heads sending batch command searching for changes all remote heads known locally no changes found sending getbundle command bundle2-input-bundle: with-transaction bundle2-input-part: "listkeys" (params: 1 mandatory) supported bundle2-input-part: "phase-heads" supported bundle2-input-part: total payload size 24 bundle2-input-bundle: 1 parts total checking for updated bookmarks updating to branch default resolving manifests branchmerge: False, force: False, partial: False ancestor: 000000000000, local: 000000000000+, remote: 9bc730a19041 A: remote created -> g getting A B: remote created -> g getting B C: remote created -> g getting C D: remote created -> g getting D E: remote created -> g getting E 5 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg clone --stream http://localhost:$HGPORT streamv2-clone-explicit --debug using http://localhost:$HGPORT/ sending capabilities command sending clonebundles command applying clone bundle from http://localhost:$HGPORT1/bundle.hg bundle2-input-bundle: with-transaction bundle2-input-part: "stream2" (params: 3 mandatory) supported applying stream bundle 11 files to transfer, 1.65 KB of data starting 4 threads for background file closing (?) starting 4 threads for background file closing (?) adding [s] data/A.i (66 bytes) adding [s] data/B.i (66 bytes) adding [s] data/C.i (66 bytes) adding [s] data/D.i (66 bytes) adding [s] data/E.i (66 bytes) adding [s] 00manifest.i (584 bytes) adding [s] 00changelog.i (595 bytes) adding [s] phaseroots (43 bytes) adding [c] branch2-served (94 bytes) adding [c] rbc-names-v1 (7 bytes) adding [c] rbc-revs-v1 (40 bytes) transferred 1.65 KB in *.* seconds (*/sec) (glob) bundle2-input-part: total payload size 1840 bundle2-input-bundle: 0 parts total finished applying clone bundle query 1; heads sending batch command searching for changes all remote heads known locally no changes found sending getbundle command bundle2-input-bundle: with-transaction bundle2-input-part: "listkeys" (params: 1 mandatory) supported bundle2-input-part: "phase-heads" supported bundle2-input-part: total payload size 24 bundle2-input-bundle: 1 parts total checking for updated bookmarks updating to branch default resolving manifests branchmerge: False, force: False, partial: False ancestor: 000000000000, local: 000000000000+, remote: 9bc730a19041 A: remote created -> g getting A B: remote created -> g getting B C: remote created -> g getting C D: remote created -> g getting D E: remote created -> g getting E 5 files updated, 0 files merged, 0 files removed, 0 files unresolved