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Testing changing branch on commits
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==================================
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Setup
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$ cat >> $HGRCPATH << EOF
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> [alias]
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> glog = log -G -T "{rev}:{node|short} {desc}\n{branch} ({bookmarks})"
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> [experimental]
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> evolution = createmarkers
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> [extensions]
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> rebase=
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> EOF
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$ hg init repo
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$ cd repo
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$ for ch in a b c d e; do echo foo >> $ch; hg ci -Aqm "Added "$ch; done
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$ hg glog
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@ 4:aa98ab95a928 Added e
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| default ()
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o 3:62615734edd5 Added d
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| default ()
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o 2:28ad74487de9 Added c
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| default ()
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o 1:29becc82797a Added b
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| default ()
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o 0:18d04c59bb5d Added a
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default ()
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$ hg branches
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default 4:aa98ab95a928
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Try without passing a new branch name
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$ hg branch -r .
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abort: no branch name specified for the revisions
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[10]
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Setting an invalid branch name
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$ hg branch -r . a:b
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abort: ':' cannot be used in a name
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[10]
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$ hg branch -r . tip
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abort: the name 'tip' is reserved
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[10]
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$ hg branch -r . 1234
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abort: cannot use an integer as a name
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[10]
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Change on non-linear set of commits
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$ hg branch -r 2 -r 4 foo
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abort: cannot change branch of non-linear revisions
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[10]
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Change in middle of the stack (linear commits)
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$ hg branch -r 1::3 foo
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abort: cannot change branch of changeset, as that will orphan 1 descendants
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(see 'hg help evolution.instability')
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[10]
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Change with dirty working directory
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$ echo bar > a
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$ hg branch -r . foo
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abort: uncommitted changes
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[20]
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$ hg revert --all
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reverting a
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Change on empty revision set
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$ hg branch -r 'draft() - all()' foo
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abort: empty revision set
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[10]
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Changing branch on linear set of commits from head
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Without obsmarkers
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$ hg branch -r 3:4 foo --config experimental.evolution=!
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changed branch on 2 changesets
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saved backup bundle to $TESTTMP/repo/.hg/strip-backup/62615734edd5-e86bd13a-branch-change.hg
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$ hg glog
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@ 4:3938acfb5c0f Added e
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| foo ()
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o 3:9435da006bdc Added d
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| foo ()
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o 2:28ad74487de9 Added c
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| default ()
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o 1:29becc82797a Added b
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| default ()
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o 0:18d04c59bb5d Added a
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default ()
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$ hg branches
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foo 4:3938acfb5c0f
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default 2:28ad74487de9 (inactive)
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With obsmarkers
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$ hg branch -r 3::4 bar
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changed branch on 2 changesets
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$ hg glog
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@ 6:7c1991464886 Added e
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| bar ()
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o 5:1ea05e93925f Added d
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| bar ()
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o 2:28ad74487de9 Added c
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| default ()
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o 1:29becc82797a Added b
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| default ()
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o 0:18d04c59bb5d Added a
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default ()
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$ hg branches
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bar 6:7c1991464886
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default 2:28ad74487de9 (inactive)
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Change branch name to an existing branch
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$ hg branch -r . default
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abort: a branch of the same name already exists
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[10]
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Changing on a branch head which is not topological head
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$ hg branch -r 2 stable
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abort: cannot change branch of changeset, as that will orphan 2 descendants
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(see 'hg help evolution.instability')
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[10]
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Enabling the allowunstable config and trying to change branch on a branch head
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which is not a topological head
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$ echo "[experimental]" >> .hg/hgrc
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$ echo "evolution.allowunstable=yes" >> .hg/hgrc
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$ hg branch -r 2 foo
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changed branch on 1 changesets
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2 new orphan changesets
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Changing branch of an obsoleted changeset
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$ hg branch -r 4 foobar
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abort: hidden revision '4' was rewritten as: 7c1991464886
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(use --hidden to access hidden revisions)
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[10]
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$ hg branch -r 4 --hidden foobar
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abort: cannot change branch of 3938acfb5c0f, as that creates content-divergence with 7c1991464886
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(add --verbose for details or see 'hg help evolution.instability')
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[10]
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Make sure bookmark movement is correct
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$ hg bookmark b1
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$ hg glog -r '.^::'
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@ 6:7c1991464886 Added e
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| bar (b1)
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* 5:1ea05e93925f Added d
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| bar ()
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~
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$ hg branch -r '(.^)::' wat --debug
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changing branch of '1ea05e93925f806d875a2163f9b76764be644636' from 'bar' to 'wat'
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committing files:
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d
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committing manifest
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committing changelog
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new node id is 343660ccab7400da637bd6a211d07f413536d718
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changing branch of '7c19914648869f5b02fc7fed31ddee9783fdd680' from 'bar' to 'wat'
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committing files:
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e
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committing manifest
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committing changelog
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new node id is de1404b45a69f8cc6437d7679033ee33e9efb4ba
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moving bookmarks ['b1'] from 7c19914648869f5b02fc7fed31ddee9783fdd680 to de1404b45a69f8cc6437d7679033ee33e9efb4ba
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resolving manifests
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branchmerge: False, force: False, partial: False
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ancestor: 7c1991464886, local: 7c1991464886+, remote: de1404b45a69
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starting 4 threads for background file closing (?)
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changed branch on 2 changesets
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updating the branch cache
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invalid branch cache (served): tip differs
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$ hg glog -r '(.^)::'
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@ 9:de1404b45a69 Added e
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| wat (b1)
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* 8:343660ccab74 Added d
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| wat ()
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~
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Make sure phase handling is correct
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$ echo foo >> bar
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$ hg ci -Aqm "added bar" --secret
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1 new orphan changesets
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$ hg glog -r .
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@ 10:8ad1294c1660 added bar
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| wat (b1)
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~
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$ hg branch -r . secret
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changed branch on 1 changesets
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$ hg phase -r .
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11: secret
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$ hg branches
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secret 11:38a9b2d53f98
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foo 7:8a4729a5e2b8
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wat 9:de1404b45a69 (inactive)
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default 2:28ad74487de9 (inactive)
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$ hg branch
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secret
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Changing branch of another head, different from one on which we are
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$ hg glog
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@ 11:38a9b2d53f98 added bar
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| secret (b1)
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* 9:de1404b45a69 Added e
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| wat ()
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* 8:343660ccab74 Added d
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| wat ()
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| o 7:8a4729a5e2b8 Added c
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| | foo ()
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x | 2:28ad74487de9 Added c
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|/ default ()
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o 1:29becc82797a Added b
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| default ()
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o 0:18d04c59bb5d Added a
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default ()
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$ hg branch
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secret
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$ hg branch -r 7 foobar
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changed branch on 1 changesets
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The current branch must be preserved
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$ hg branch
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secret
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Changing branch on multiple heads at once
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$ hg rebase -s 8 -d 12 --keepbranches -q
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$ hg rebase -s 14 -d 1 --keepbranches -q
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$ hg branch -r 0: stable
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changed branch on 6 changesets
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$ hg glog
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@ 23:6a5ddbcfb870 added bar
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| stable (b1)
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o 22:baedc6e98a67 Added e
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| stable ()
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| o 21:99ac7bf8aad1 Added d
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| | stable ()
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| o 20:0ecb4d39c4bd Added c
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|/ stable ()
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o 19:fd45b986b109 Added b
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| stable ()
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o 18:204d2769eca2 Added a
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stable ()
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$ hg branches
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stable 23:6a5ddbcfb870
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$ hg branch
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stable
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Changing to same branch is no-op
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$ hg branch -r 19::21 stable
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changed branch on 0 changesets
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Changing branch name to existing branch name if the branch of parent of root of
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revs is same as the new branch name
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$ hg branch -r 20::21 bugfix
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changed branch on 2 changesets
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$ hg glog
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o 25:714defe1cf34 Added d
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| bugfix ()
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o 24:98394def28fc Added c
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| bugfix ()
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| @ 23:6a5ddbcfb870 added bar
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| | stable (b1)
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| o 22:baedc6e98a67 Added e
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|/ stable ()
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o 19:fd45b986b109 Added b
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| stable ()
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o 18:204d2769eca2 Added a
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stable ()
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$ hg branch -r 24:25 stable
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changed branch on 2 changesets
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$ hg glog
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o 27:4ec342341562 Added d
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| stable ()
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o 26:83f48859c2de Added c
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| stable ()
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| @ 23:6a5ddbcfb870 added bar
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| | stable (b1)
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| o 22:baedc6e98a67 Added e
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|/ stable ()
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o 19:fd45b986b109 Added b
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| stable ()
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o 18:204d2769eca2 Added a
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stable ()
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Changing branch of a merge commit
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$ hg branch -q ghi
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$ echo f > f
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$ hg ci -qAm 'Added f'
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$ hg up -q 27
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$ hg branch -q jkl
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$ echo g > g
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$ hg ci -qAm 'Added g'
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$ hg glog -r 'heads(:)'
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@ 29:6bc1c6c2c9da Added g
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| jkl ()
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~
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o 28:2f1019bd29d2 Added f
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| ghi (b1)
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~
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$ hg branch -q default
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$ hg merge -r 28
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4 files updated, 0 files merged, 0 files removed, 0 files unresolved
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(branch merge, don't forget to commit)
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$ hg branch -r . abcd
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abort: outstanding uncommitted merge
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[20]
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$ hg ci -m "Merge commit"
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$ hg glog -r 'parents(.)::'
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@ 30:4d56e6b1eb6b Merge commit
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|\ default ()
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| o 29:6bc1c6c2c9da Added g
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| | jkl ()
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| ~
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o 28:2f1019bd29d2 Added f
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| ghi (b1)
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~
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$ hg branch -r . ghi
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0 files updated, 0 files merged, 4 files removed, 0 files unresolved
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changed branch on 1 changesets
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$ hg branch -r . jkl
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changed branch on 1 changesets
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$ hg branch -r . default
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changed branch on 1 changesets
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$ hg branch -r . stable
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abort: a branch of the same name already exists
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[10]
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$ hg branch -r . stable --force
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changed branch on 1 changesets
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$ hg branches
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stable 34:d1c2addda4a2
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jkl 29:6bc1c6c2c9da (inactive)
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ghi 28:2f1019bd29d2 (inactive)
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Changing branch on public changeset
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$ hg phase -r . -p
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$ hg branch -r . def
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abort: cannot change branch of public changesets: d1c2addda4a2
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(see 'hg help phases' for details)
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[10]
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Merge commit with conflicts, with evolution and without
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$ mklozenge() {
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> echo foo > a
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> hg ci -qAm foo
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> echo bar > a
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> hg ci -qm bar
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> hg up -q '.^'
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> echo baz > a
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> hg ci -qm baz
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> hg merge -q -t :local
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> echo neither > a
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> hg ci -qm neither
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> }
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$ cd ..
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$ hg init merge-with-evolution
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$ cd merge-with-evolution
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$ mklozenge
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$ hg branch -r '(.^)::' abc
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changed branch on 2 changesets
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$ hg glog
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@ 5:c07fa8b34d54 neither
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|\ abc ()
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| o 4:f2aa51777cc9 baz
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| | abc ()
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o | 1:2e33c4f0856b bar
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|/ default ()
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o 0:91cfb6004abf foo
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default ()
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$ hg cat a
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neither
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$ cd ..
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$ hg init merge-without-evolution
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$ cd merge-without-evolution
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$ mklozenge
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$ cat > .hg/hgrc << EOF
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> [experimental]
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> evolution = no
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> evolution.allowunstable = no
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> EOF
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$ hg branch -r '(.^)::' abc
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changed branch on 2 changesets
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saved backup bundle to $TESTTMP/merge-without-evolution/.hg/strip-backup/9a3a2af368f4-8db1a361-branch-change.hg
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$ hg glog
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@ 3:c07fa8b34d54 neither
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|\ abc ()
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| o 2:f2aa51777cc9 baz
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| | abc ()
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o | 1:2e33c4f0856b bar
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|/ default ()
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o 0:91cfb6004abf foo
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default ()
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$ hg cat a
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neither
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