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tests/test-hooklib-reject_new_heads.t
author Pierre-Yves David <pierre-yves.david@octobus.net>
Thu, 07 Mar 2024 04:15:23 +0100
changeset 51536 718f28ea3af4
parent 44413 4cabeea6d214
permissions -rw-r--r--
branchcache: add a "pure topological head" fast path In a narrow but actually quick common case, all topological heads are all on the same branch and all open. In this case, computing the branch map is very simple. We can quickly detect situation where this situation will not change. So we update the V3 format to be able to express this situation and upgrade the update code to detect we remains in that mode. The branch cache is populated with the actual value when the branch map is accessed, but the update_disk method can do the update without needing to populate it.
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  $ cat <<EOF >> $HGRCPATH
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  > [extensions]
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  > hooklib =
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  >
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  > [phases]
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  > publish = False
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  > EOF
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  $ hg init a
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  $ hg --cwd a debugbuilddag '.:parent.*parent'
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  $ hg --cwd a log -G
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  o  changeset:   2:fa942426a6fd
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  |  tag:         tip
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  |  parent:      0:1ea73414a91b
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  |  user:        debugbuilddag
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  |  date:        Thu Jan 01 00:00:02 1970 +0000
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  |  summary:     r2
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  |
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  | o  changeset:   1:66f7d451a68b
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  |/   user:        debugbuilddag
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  |    date:        Thu Jan 01 00:00:01 1970 +0000
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  |    summary:     r1
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  |
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  o  changeset:   0:1ea73414a91b
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     tag:         parent
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     user:        debugbuilddag
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     date:        Thu Jan 01 00:00:00 1970 +0000
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     summary:     r0
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  $ hg init b
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  $ cat <<EOF >> b/.hg/hgrc
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  > [hooks]
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  > pretxnclose.reject_new_heads = \
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  >   python:hgext.hooklib.reject_new_heads.hook
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  > EOF
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  $ hg --cwd b pull ../a
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  pulling from ../a
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  requesting all changes
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  adding changesets
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  adding manifests
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  adding file changes
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  error: pretxnclose.reject_new_heads hook failed: Changes on branch 'default' resulted in multiple heads
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  transaction abort!
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  rollback completed
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  abort: Changes on branch 'default' resulted in multiple heads
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  [255]
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  $ hg --cwd b pull ../a -r 1ea73414a91b
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  pulling from ../a
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  adding changesets
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  adding manifests
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  adding file changes
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  added 1 changesets with 0 changes to 0 files
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  new changesets 1ea73414a91b (1 drafts)
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  (run 'hg update' to get a working copy)
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