Mercurial > hg
view tests/test-pullling-to-general-delta.t @ 50355:0232571255d3 stable
delta-find: never do anything fancy when general delta is off
Without general delta, the only option is to do a delta against the previous
revision in the revlog, or to do a full snapshot. So no need to dive into the
more complicated logic.
This prevent Mercurial to misbehave when applying remote deltas when
`pulled-delta-reuse-policy` was set to "try-base" or "forced" and would produce
and store invalid deltas.
We add an associated tests to make sure this scenario is covered by tests.
There are more code to cleanup after this, but I what to keep the fixing patch
simple.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Wed, 19 Apr 2023 18:16:19 +0200 |
parents | |
children | ae74a60ad583 |
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============================================================================ Pulling from modern to a non-general delta target (and other related checks) ============================================================================ There is various issue that can arise when we update the code with modern storage in mind while working on delta processing. So this file is meant for various scenario that might break in the future or have break in the past. Setup ===== Create a modern server with an older clone $ cat << EOF >> $HGRCPATH > [command-templates] > log = "{desc} {tags}\n" > EOF $ hg init server $ hg clone --quiet --pull server client --config format.usegeneraldelta=no $ hg debugformat -R client | grep generaldelta generaldelta: no Create some complexe history $ cd server $ hg debugbuilddag -n '.+3:a$.+5:b/a:k$.+7:c/b:l$.+6:d/a:m<k+6/l+1/m' $ hg log -G o r36 tip |\ | o r35 | | | o r34 | |\ | | o r33 | | | | | o r32 | | | | | o r31 | | | | | o r30 | | | | | o r29 | | | | | o r28 | | | o | | r27 m |\ \ \ | o | | r26 d | | | | | o | | r25 | | | | | o | | r24 | | | | | o | | r23 | | | | | o | | r22 | | | | | o | | r21 | | | | | o | | r20 | / / | o | r19 l | |\ \ | | o | r18 c | | | | | | o | r17 | | | | | | o | r16 | | | | | | o | r15 | | | | | | o | r14 | | | | | | o | r13 | | | | | | o | r12 | | | | | | o | r11 | | / +---o r10 k | |/ | o r9 b | | | o r8 | | | o r7 | | | o r6 | | | o r5 | | | o r4 | o r3 a | o r2 | o r1 | o r0 $ cd .. Pull it in the client ===================== pull with default value ----------------------- $ cp -R client client-simple-pull $ hg -R client-simple-pull pull pulling from $TESTTMP/server requesting all changes adding changesets adding manifests adding file changes added 37 changesets with 37 changes to 37 files new changesets 61246295ee1e:b4b117cbbcf3 (run 'hg update' to get a working copy) $ hg -R client-simple-pull verify checking changesets checking manifests crosschecking files in changesets and manifests checking files checking dirstate checked 37 changesets with 37 changes to 37 files pull with "no-reuse" policy --------------------------- $ cp -R client client-no-reuse $ hg -R client-no-reuse pull --config paths.default:pulled-delta-reuse-policy=no-reuse pulling from $TESTTMP/server requesting all changes adding changesets adding manifests adding file changes added 37 changesets with 37 changes to 37 files new changesets 61246295ee1e:b4b117cbbcf3 (run 'hg update' to get a working copy) $ hg -R client-no-reuse verify checking changesets checking manifests crosschecking files in changesets and manifests checking files checking dirstate checked 37 changesets with 37 changes to 37 files pull with "try-base" policy --------------------------- $ cp -R client client-try-base $ hg -R client-try-base pull --config paths.default:pulled-delta-reuse-policy=try-base pulling from $TESTTMP/server requesting all changes adding changesets adding manifests adding file changes added 37 changesets with 37 changes to 37 files new changesets 61246295ee1e:b4b117cbbcf3 (run 'hg update' to get a working copy) $ hg -R client-try-base verify checking changesets checking manifests crosschecking files in changesets and manifests checking files checking dirstate checked 37 changesets with 37 changes to 37 files pull with "forced" policy ------------------------- $ cp -R client client-forced $ hg -R client-forced pull --config paths.default:pulled-delta-reuse-policy=forced pulling from $TESTTMP/server requesting all changes adding changesets adding manifests adding file changes added 37 changesets with 37 changes to 37 files new changesets 61246295ee1e:b4b117cbbcf3 (run 'hg update' to get a working copy) $ hg -R client-forced verify checking changesets checking manifests crosschecking files in changesets and manifests checking files checking dirstate checked 37 changesets with 37 changes to 37 files