stablerange: extract the core API into a 'stablerangecore' class
To clarify what the code is doing without all the caching and algorithmic
improvement, we extract a core class that highlight the basic API expected from
the class.
====================================Testingheadcheckingcode:CaseD-6====================================Mercurialchecksfortheintroductionofnewheadsonpush.Evolutioncomesintoplaytodetectifexistingbranchesontheserverarebeingreplacedbysomeofthenewonewepush.Thiscaseispartofaseriesoftestscheckingthisbehavior.CategoryD:remoteheadis"obs-affected"locally,butresultisnotpartofthepushTestCase6:singlechangeset,superseededthenpruned(onanewchangesetunpushed)changesetThisisapartialpushvariationofcaseB-6..old-state:....*1changesetbranch....new-state:....*oldbranchisrewrittenontoanotherone,..*thenewversionisthenpruned.....expected-result:....*pushdenied....graph-summary:....Aø⇠⊗A'.. | |.. C ◔ | ○ B.. \|/.. ● $ . $TESTDIR/testlib/push-checkheads-util.shTest setup---------- $ mkdir D6 $ cd D6 $ setuprepos creating basic server and client repo updating to branch default 2 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd client $ hg up 0 0 files updated, 0 files merged, 1 files removed, 0 files unresolved $ mkcommit B0 created new head $ mkcommit A1 $ hg up '0' 0 files updated, 0 files merged, 2 files removed, 0 files unresolved $ mkcommit C0 created new head $ hg debugobsolete `getid "desc(A0)"` `getid "desc(A1)"` obsoleted 1 changesets $ hg debugobsolete --record-parents `getid "desc(A1)"` obsoleted 1 changesets $ hg log -G --hidden @ 0f88766e02d6 (draft): C0 | | x ba93660aff8d (draft): A1 | | | o 74ff5441d343 (draft): B0 |/ | x 8aaa48160adc (draft): A0 |/ o 1e4be0697311 (public): rootActual testing-------------- $ hg push --rev 'desc(C0)' pushing to $TESTTMP/D6/server (glob) searching for changes abort: push creates new remote head 0f88766e02d6! (merge or see 'hghelppush' for details about pushing new heads) [255] $ cd ../..