/**
 * @name Duplicate
 * @description Insert description here...
 * @kind problem
 * @problem.severity warning
 */

import python

import external.CodeDuplication

predicate lexically_sorted(DuplicateBlock dup1, DuplicateBlock dup2) {
		dup1.sourceFile().getName() < dup2.sourceFile().getName()
		or
		dup1.sourceFile().getName() = dup2.sourceFile().getName() and dup1.sourceStartLine() < dup2.sourceStartLine()
}

from DuplicateBlock dup1, DuplicateBlock dup2
where dup1.getEquivalenceClass() = dup2.getEquivalenceClass()
and lexically_sorted(dup1, dup2)
select dup1.toString(), dup2.toString(), dup1.sourceFile().getShortName(), dup1.sourceStartLine(), dup1.sourceEndLine()