annotate contrib/dumprevlog @ 8849:80cc4b1a62d0

compare grep result between target and its parent I found that typical case is that grep target is added at (*) revision in the tree shown below. +--- 1(*) --- 3 0 +--- 2 ------ 4 Now, I expect 'hg grep --all' to show only rev:1 which is first appearance of target line. But 'hg grep --all' will tell: target line dis-appeared at 3 => 4 target line appeared at 2 => 3 target line dis-appeared at 1 => 2 target line appeared at 0 => 1 because current 'hg grep' implementation compares not between target revision and its parent, but between neighbor revisions in walkthrough order. I checked performance of this patch by "hg grep --follow --all walkchangerevs" on whole Mercurial repo, and patched version could complete as fast as un-patched one.
author FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
date Tue, 19 May 2009 16:49:54 +0900
parents 9fe97eea5510
children 659f34b833b9
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #!/usr/bin/env python
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2 # Dump revlogs as raw data stream
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3 # $ find .hg/store/ -name "*.i" | xargs dumprevlog > repo.dump
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4
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5 import sys
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6 from mercurial import revlog, node, util
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7
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8 for fp in (sys.stdin, sys.stdout, sys.stderr):
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9 util.set_binary(fp)
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10
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11 for f in sys.argv[1:]:
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12 binopen = lambda fn: open(fn, 'rb')
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13 r = revlog.revlog(binopen, f)
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14 print "file:", f
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15 for i in r:
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16 n = r.node(i)
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17 p = r.parents(n)
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18 d = r.revision(n)
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19 print "node:", node.hex(n)
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20 print "linkrev:", r.linkrev(i)
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21 print "parents:", node.hex(p[0]), node.hex(p[1])
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22 print "length:", len(d)
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23 print "-start-"
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24 print d
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25 print "-end-"