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Location: LEMON/LEMON-main/scripts/chg-len.py

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alpar (Alpar Juttner)
Port preflow push max flow alg. from svn -r3516 (#176) Namely, - port the files - apply the migrate script - apply the unify script - break the long lines in lemon/preflow.h - convert the .dim test file to .lgf - fix compilation problems
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#! /usr/bin/env python



import sys



from mercurial import ui, hg



if len(sys.argv)>1 and sys.argv[1] in ["-h","--help"]:

    print """

This utility just prints the length of the longest path

in the revision graph from revison 0 to the current one.

"""

    exit(0)



u = ui.ui()

r = hg.repository(u, ".")

N = r.changectx(".").rev()

lengths=[0]*(N+1)

for i in range(N+1):

    p=r.changectx(i).parents()

    if p[0]:

        p0=lengths[p[0].rev()]

    else:

        p0=-1

    if len(p)>1 and p[1]:

        p1=lengths[p[1].rev()]

    else:

        p1=-1

    lengths[i]=max(p0,p1)+1

print lengths[N]