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  • Committer: Martin Pool
  • Date: 2007-02-26 05:29:05 UTC
  • mto: This revision was merged to the branch mainline in revision 2309.
  • Revision ID: mbp@sourcefrog.net-20070226052905-7mt8m6871e9dym8e
Tag command refuses to replace existing tags unless you force it.

Add Tags.has_tag.

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bzrlib/builtins.py
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    Tags are stored in the branch.  Tags are copied from one branch to another
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    along when you branch, push, pull or merge.
 
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    It is an error to give a tag name that already exists unless you pass 
 
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    --force, in which case the tag is moved to point to the new revision.
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    """
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    takes_args = ['tag_name']
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    takes_options = [
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        Option('directory',
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            help='branch in which to place the tag',
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            short_name='d',
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            type=unicode,
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            ),
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        Option('delete',
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            help='Delete this tag rather than placing it',
 
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            help='Delete this tag rather than placing it.',
 
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            ),
 
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        Option('directory',
 
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            help='Branch in which to place the tag.',
 
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            short_name='d',
 
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            type=unicode,
 
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            ),
 
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        Option('force',
 
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            help='Replace existing tags',
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            ),
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        'revision',
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        ]
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    def run(self, tag_name, directory='.',
 
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    def run(self, tag_name,
 
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            delete=None,
 
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            directory='.',
 
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            force=None,
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            revision=None,
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            delete=None):
 
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            ):
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        branch, relpath = Branch.open_containing(directory)
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        if delete:
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            branch.tags.delete_tag(tag_name)
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            self.outf.write('deleted tag %s' % tag_name)
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        else:
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            if revision:
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                if len(revision) != 1:
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                    raise errors.BzrCommandError(
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                        "Tags can only be placed on a single revision, "
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                        "not on a range")
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                revision_id = revision[0].in_history(branch).rev_id
 
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        branch.lock_write()
 
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        try:
 
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            if delete:
 
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                branch.tags.delete_tag(tag_name)
 
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                self.outf.write('Deleted tag %s.\n' % tag_name)
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            else:
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                revision_id = branch.last_revision()
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            branch.tags.set_tag(tag_name, revision_id)
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            self.outf.write('created tag %s' % tag_name)
 
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                if revision:
 
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                    if len(revision) != 1:
 
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                        raise errors.BzrCommandError(
 
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                            "Tags can only be placed on a single revision, "
 
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                            "not on a range")
 
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                    revision_id = revision[0].in_history(branch).rev_id
 
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                else:
 
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                    revision_id = branch.last_revision()
 
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                if (not force) and branch.tags.has_tag(tag_name):
 
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                    raise errors.TagAlreadyExists(tag_name)
 
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                branch.tags.set_tag(tag_name, revision_id)
 
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                self.outf.write('Created tag %s.\n' % tag_name)
 
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        finally:
 
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            branch.unlock()
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class cmd_tags(Command):