def _dependency_cmp()

in src/buildstream/_loader/loadelement.pyx [0:0]

• 26 lines of code
• 15 McCabe index (conditional complexity)

def _dependency_cmp(Dependency dep_a, Dependency dep_b):
    cdef LoadElement element_a = dep_a.element
    cdef LoadElement element_b = dep_b.element

    # Sort on inter element dependency first
    if element_a.depends(element_b):
        return 1
    elif element_b.depends(element_a):
        return -1

    # If there are no inter element dependencies, place
    # runtime only dependencies last
    if dep_a.dep_type != dep_b.dep_type:
        if dep_a.dep_type == DependencyType.RUNTIME:
            return 1
        elif dep_b.dep_type == DependencyType.RUNTIME:
            return -1

    # All things being equal, string comparison.
    if element_a.name > element_b.name:
        return 1
    elif element_a.name < element_b.name:
        return -1

    # Sort local elements before junction elements
    # and use string comparison between junction elements
    if element_a.junction and element_b.junction:
        if element_a.junction > element_b.junction:
            return 1
        elif element_a.junction < element_b.junction:
            return -1
    elif element_a.junction:
        return -1
    elif element_b.junction:
        return 1

    # This wont ever happen
    return 0