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tests/test-branch-tag-confict.t
author Matt Mackall <mpm@selenic.com>
Wed, 23 Mar 2011 19:28:16 -0500
changeset 13750 7eb82f88e157
child 14162 301725c3df9a
permissions -rw-r--r--
# User Dan Villiom Podlaski Christiansen <danchr@gmail.com> # Date 1289564504 -3600 # Node ID b75264c15cc888cf38c3c7b8f619801e3c2589c7 # Parent 89b2e5d940f669e590096c6be70eee61c9172fff revsets: overload the branch() revset to also take a branch name. This should only change semantics in the specific case of a tag/branch conflict where the tag wasn't done on the branch with the same name. Previously, branch(whatever) would resolve to the branch of the tag in that case, whereas now it will resolve to the branch of the name. The previous behaviour, while documented, seemed very counter-intuitive to me. An alternate approach would be to introduce a new revset such as branchname() or namedbranch(). While this would retain backwards compatibility, the distinction between it and branch() would not be readily apparent to users. The most intuitive behaviour would be to have branch(x) require 'x' to be a branch name, and something like branchof(x) or samebranch(x) do what branch(x) currently does. Unfortunately, our backwards compatibility guarantees prevent us from doing that. Please note that while 'hg tag' guards against shadowing a branch, 'hg branch' does not. Besides, even if it did, that wouldn't solve the issue of conversions with such tags and branches...

Initial setup.

  $ hg init repo
  $ cd repo
  $ touch thefile
  $ hg ci -A -m 'Initial commit.'
  adding thefile

Create a tag.

  $ hg tag branchortag

Create a branch with the same name as the tag.

  $ hg branch branchortag
  marked working directory as branch branchortag
  $ hg ci -m 'Create a branch with the same name as a tag.'

This is what we have:

  $ hg log
  changeset:   2:02b1af9b58c2
  branch:      branchortag
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     Create a branch with the same name as a tag.
  
  changeset:   1:2635c45ca99b
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     Added tag branchortag for changeset f57387372b5d
  
  changeset:   0:f57387372b5d
  tag:         branchortag
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     Initial commit.
  
Update to the tag:

  $ hg up 'tag(branchortag)'
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ hg parents
  changeset:   0:f57387372b5d
  tag:         branchortag
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     Initial commit.
  
Updating to the branch:

  $ hg up 'branch(branchortag)'
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg parents
  changeset:   2:02b1af9b58c2
  branch:      branchortag
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     Create a branch with the same name as a tag.
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