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1 | #! /usr/bin/env python |
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2 | |
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3 | import sys |
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4 | |
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5 | from mercurial import ui, hg |
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6 | from mercurial import util |
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7 | |
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8 | util.rcpath = lambda : [] |
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9 | |
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10 | if len(sys.argv)>1 and sys.argv[1] in ["-h","--help"]: |
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11 | print """ |
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12 | This utility just prints the length of the longest path |
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13 | in the revision graph from revison 0 to the current one. |
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14 | """ |
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15 | exit(0) |
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16 | |
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17 | u = ui.ui() |
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18 | r = hg.repository(u, ".") |
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19 | N = r.changectx(".").rev() |
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20 | lengths=[0]*(N+1) |
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21 | for i in range(N+1): |
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22 | p=r.changectx(i).parents() |
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23 | if p[0]: |
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24 | p0=lengths[p[0].rev()] |
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25 | else: |
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26 | p0=-1 |
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27 | if len(p)>1 and p[1]: |
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28 | p1=lengths[p[1].rev()] |
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29 | else: |
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30 | p1=-1 |
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31 | lengths[i]=max(p0,p1)+1 |
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32 | print lengths[N] |
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