Mercurial > hg
view contrib/revsetbenchmarks.py @ 21708:2668a78df8ba stable
keyword: suppress keyword expansion while 'hg fetch' for internal merge
Before this patch, 'hg fetch' may cause unexpected conflict, if 'hg
fetch'-ed changes are located near lines in which keywords are
embedded, because keywords are substituted with other strings in the
working directory.
This patch suppresses keyword expansion while 'hg fetch' for internal
merge by adding 'fetch' to 'restricted' command list like 'merge'.
This patch uses 'hg import' to safely create the new head to be merged
at succeeding 'hg fetch', because:
- branch of revision #10 is different from one of #11 in 'Test'
repository, so just 'hg fetch -r 11' doesn't cause merging between
them
this means the new head should be created manually.
- 'hg import' is easier and safer than 'cat <<EOF' and 'hg commit'
to replay same changes including special characters like '$'
safeness of 'hg import' with keyword extension is already examined
in 'test-keyword.t'.
author | FUJIWARA Katsunori <foozy@lares.dti.ne.jp> |
---|---|
date | Thu, 05 Jun 2014 16:47:14 +0900 |
parents | c04e5e937139 |
children | f0f810096842 |
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#!/usr/bin/env python # Measure the performance of a list of revsets against multiple revisions # defined by parameter. Checkout one by one and run perfrevset with every # revset in the list to benchmark its performance. # # - First argument is a revset of mercurial own repo to runs against. # - Second argument is the file from which the revset array will be taken # If second argument is omitted read it from standard input # # You should run this from the root of your mercurial repository. # # This script also does one run of the current version of mercurial installed # to compare performance. import sys from subprocess import check_call, Popen, CalledProcessError, STDOUT, PIPE def check_output(*args, **kwargs): kwargs.setdefault('stderr', PIPE) kwargs.setdefault('stdout', PIPE) proc = Popen(*args, **kwargs) output, error = proc.communicate() if proc.returncode != 0: raise CalledProcessError(proc.returncode, ' '.join(args[0])) return output def update(rev): """update the repo to a revision""" try: check_call(['hg', 'update', '--quiet', '--check', str(rev)]) except CalledProcessError, exc: print >> sys.stderr, 'update to revision %s failed, aborting' % rev sys.exit(exc.returncode) def perf(revset): """run benchmark for this very revset""" try: output = check_output(['./hg', '--config', 'extensions.perf=contrib/perf.py', 'perfrevset', revset], stderr=STDOUT) output = output.lstrip('!') # remove useless ! in this context return output.strip() except CalledProcessError, exc: print >> sys.stderr, 'abort: cannot run revset benchmark' sys.exit(exc.returncode) def printrevision(rev): """print data about a revision""" sys.stdout.write("Revision: ") sys.stdout.flush() check_call(['hg', 'log', '--rev', str(rev), '--template', '{desc|firstline}\n']) def getrevs(spec): """get the list of rev matched by a revset""" try: out = check_output(['hg', 'log', '--template={rev}\n', '--rev', spec]) except CalledProcessError, exc: print >> sys.stderr, "abort, can't get revision from %s" % spec sys.exit(exc.returncode) return [r for r in out.split() if r] target_rev = sys.argv[1] revsetsfile = sys.stdin if len(sys.argv) > 2: revsetsfile = open(sys.argv[2]) revsets = [l.strip() for l in revsetsfile] print "Revsets to benchmark" print "----------------------------" for idx, rset in enumerate(revsets): print "%i) %s" % (idx, rset) print "----------------------------" print revs = getrevs(target_rev) results = [] for r in revs: print "----------------------------" printrevision(r) print "----------------------------" update(r) res = [] results.append(res) for idx, rset in enumerate(revsets): data = perf(rset) res.append(data) print "%i)" % idx, data sys.stdout.flush() print "----------------------------" print """ Result by revset ================ """ print 'Revision:', revs for idx, rev in enumerate(revs): sys.stdout.write('%i) ' % idx) sys.stdout.flush() printrevision(rev) print print for ridx, rset in enumerate(revsets): print "revset #%i: %s" % (ridx, rset) for idx, data in enumerate(results): print '%i) %s' % (idx, data[ridx]) print