scripts/chg-len.py
author Alpar Juttner <alpar@cs.elte.hu>
Mon, 12 Apr 2010 16:52:48 +0200
branch1.1
changeset 973 290f3ca599d6
parent 390 4b2382fd80ef
child 780 abf31e4af617
permissions -rwxr-xr-x
Merge bugfix #366 to branch 1.1
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#! /usr/bin/env python
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import sys
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from mercurial import ui, hg
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from mercurial import util
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util.rcpath = lambda : []
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if len(sys.argv)>1 and sys.argv[1] in ["-h","--help"]:
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    print """
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This utility just prints the length of the longest path
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in the revision graph from revison 0 to the current one.
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"""
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    exit(0)
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u = ui.ui()
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r = hg.repository(u, ".")
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N = r.changectx(".").rev()
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lengths=[0]*(N+1)
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for i in range(N+1):
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    p=r.changectx(i).parents()
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    if p[0]:
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        p0=lengths[p[0].rev()]
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    else:
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        p0=-1
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    if len(p)>1 and p[1]:
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        p1=lengths[p[1].rev()]
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    else:
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        p1=-1
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    lengths[i]=max(p0,p1)+1
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print lengths[N]