399
394
@param branchName: The new branch's name.
402
397
branchURI = self.projectBranchURI(projectName, branchName)
407
398
if subversionURLExists(branchURI):
408
399
raise DuplicateBranch(branchName)
409
400
runcmd('svn', 'cp', trunkURI, branchURI, '-m',