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#!/usr/bin/env python
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# Measure the performance of a list of revsets against multiple revisions
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# defined by parameter. Checkout one by one and run perfrevset with every
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# revset in the list to benchmark its performance.
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#
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# - First argument is a revset of mercurial own repo to runs against.
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# - Second argument is the file from which the revset array will be taken
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# If second argument is omitted read it from standard input
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#
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# You should run this from the root of your mercurial repository.
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#
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# This script also does one run of the current version of mercurial installed
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# to compare performance.
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import sys
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from subprocess import check_call, check_output
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HG="hg update --quiet --check"
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PERF="./hg --config extensions.perf=contrib/perf.py perfrevset"
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target_rev = sys.argv[1]
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revsetsfile = sys.stdin
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if len(sys.argv) > 2:
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revsetsfile = open(sys.argv[2])
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revsets = [l.strip() for l in revsetsfile]
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print "Revsets to benchmark"
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print "----------------------------"
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for idx, rset in enumerate(revsets):
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print "%i) %s" % (idx, rset)
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print "----------------------------"
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print
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revs = check_output("hg log --template='{rev}\n' --rev " + target_rev,
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shell=True);
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revs = [r for r in revs.split() if r]
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# Benchmark revisions
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for r in revs:
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print "----------------------------"
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sys.stdout.write("Revision: ")
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sys.stdout.flush()
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check_call('hg log -r %s --template "{desc|firstline}\n"' % r, shell=True)
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print "----------------------------"
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check_call(HG + ' ' + r, shell=True)
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for idx, rset in enumerate(revsets):
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sys.stdout.write("%i) " % idx)
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sys.stdout.flush()
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check_call(PERF + ' "%s"' % rset, shell=True)
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print "----------------------------"
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