Mercurial > hg
view tests/test-push-checkheads-superceed-A6.t @ 32009:c6cb21ddf74a
checkheads: upgrade the obsolescence postprocessing logic (issue4354)
The previous logic had many shortcoming (eg: looking at the head only, not
handling prune, etc...), the new logic use a more robust approach:
For each head, we check if after the push all changesets exclusive to this heads
will be obsolete. If they are, the branch considered be "replaced".
To check if a changeset will be obsolete, we simply checks:
* the changeset phase
* the existence of a marker relevant to the "pushed set" that affects the
changesets..
This fixes two major issues of the previous algorithm:
* branch partially rewritten (eg: head but not root) are no longer detected as
replaced,
* Prune are now properly handled.
(This implementation was introduction in the evolve extension, version 6.0.0.)
This new algorithm has an extended number of tests, a basic one is provided
in this patch. The others will be introduced in their own changeset for clarity.
In addition, we stop trying to process heads unknown locally, we do not have
enough data to take an informed decision so we should stop pretending we do.
This reflect a test that is now update.
author | Pierre-Yves David <pierre-yves.david@ens-lyon.org> |
---|---|
date | Sat, 15 Apr 2017 02:55:18 +0200 |
parents | aefe40d95130 |
children | 53b3a1968aa6 |
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==================================== Testing head checking code: Case A-6 ==================================== Mercurial checks for the introduction of new heads on push. Evolution comes into play to detect if existing branches on the server are being replaced by some of the new one we push. This case is part of a series of tests checking this behavior. Category A: simple case involving a branch being superceeded by another. TestCase 6: multi-changeset branch, split on multiple other, (base on its own branch), same number of head .. old-state: .. .. * 2 branch (1-changeset, and 2-changesets) .. .. new-state: .. .. * 1 new branch superceeding the base of the old-2-changesets-branch, .. * 1 new changesets on the old-1-changeset-branch superceeding the head of the other .. .. expected-result: .. .. * push allowed .. .. graph-summary: .. .. B'◔⇢ø B .. | | .. A | ø⇠◔ A' .. | |/ .. C ● | .. \| .. ● $ . $TESTDIR/testlib/push-checkheads-util.sh Test setup ---------- $ mkdir A6 $ cd A6 $ setuprepos creating basic server and client repo updating to branch default 2 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd server $ mkcommit B0 $ hg up 0 0 files updated, 0 files merged, 2 files removed, 0 files unresolved $ mkcommit C0 created new head $ cd ../client $ hg pull pulling from $TESTTMP/A6/server (glob) searching for changes adding changesets adding manifests adding file changes added 2 changesets with 2 changes to 2 files (+1 heads) (run 'hg heads' to see heads, 'hg merge' to merge) $ hg up 0 0 files updated, 0 files merged, 1 files removed, 0 files unresolved $ mkcommit A1 created new head $ hg up 'desc(C0)' 1 files updated, 0 files merged, 1 files removed, 0 files unresolved $ mkcommit B1 $ hg debugobsolete `getid "desc(A0)" ` `getid "desc(A1)"` $ hg debugobsolete `getid "desc(B0)" ` `getid "desc(B1)"` $ hg log -G --hidden @ d70a1f75a020 (draft): B1 | | o f6082bc4ffef (draft): A1 | | o | 0f88766e02d6 (draft): C0 |/ | x d73caddc5533 (draft): B0 | | | x 8aaa48160adc (draft): A0 |/ o 1e4be0697311 (public): root Actual testing -------------- $ hg push pushing to $TESTTMP/A6/server (glob) searching for changes adding changesets adding manifests adding file changes added 2 changesets with 2 changes to 2 files (+1 heads) 2 new obsolescence markers $ cd ../..