mercurial/revlog.py

2489:568e58eed096

        start will be returned

        """
        if start is None:
            start = nullid
        reachable = {start: 1}
        heads = {start: 1}
        startrev = self.rev(start)

        for r in xrange(startrev + 1, self.count()):
            n = self.node(r)
            for pn in self.parents(n):
                if pn in reachable:
                    reachable[n] = 1
                    heads[n] = 1
                if pn in heads:
                    del heads[pn]
        return heads.keys()

    def children(self, node):
        """find the children of a given node"""
        c = []
        p = self.rev(node)

2490:6ff82ec1f4b8

        start will be returned

        """
        if start is None:
            start = nullid
        startrev = self.rev(start)
        reachable = {startrev: 1}
        heads = {startrev: 1}

        parentrevs = self.parentrevs
        for r in xrange(startrev + 1, self.count()):
            for p in parentrevs(r):
                if p in reachable:
                    reachable[r] = 1
                    heads[r] = 1
                if p in heads:
                    del heads[p]
        return [self.node(r) for r in heads]

    def children(self, node):
        """find the children of a given node"""
        c = []
        p = self.rev(node)