[PATCH 1 of 3] revsetbenchmarks: add main documention for the script

Pierre-Yves David pierre-yves.david at ens-lyon.org
Wed Jun 17 13:25:59 CDT 2015

# HG changeset patch
# User Pierre-Yves David <pierre-yves.david at fb.com>
# Date 1434511477 25200
#      Tue Jun 16 20:24:37 2015 -0700
# Node ID 8d9c687c069ae920ebc9c823de307e8780a09095
# Parent  695b93a79d171bbcc4ac47b1229918ce809a5d65
revsetbenchmarks: add main documention for the script

This allow us to document the fact we can use comment in the file listing revsets.

diff --git a/contrib/revsetbenchmarks.py b/contrib/revsetbenchmarks.py
--- a/contrib/revsetbenchmarks.py
+++ b/contrib/revsetbenchmarks.py
@@ -207,12 +207,18 @@ def applyvariants(revset, variant):
         return revset
     for var in variant.split('+'):
         revset = '%s(%s)' % (var, revset)
     return revset
-parser = OptionParser(usage="usage: %prog [options] <revs>")
+helptext="""This script will run multiple variants of provided revsets using
+different revisions in your mercurial repository. After the benchmark are run
+summary output is provided. Use itto demonstrate speed improvements or pin
+point regressions. Revsets to run are specified in a file (or from stdin), one
+revsets per line. Line starting with '#' will be ignored, allowing insertion of
+parser = OptionParser(usage="usage: %prog [options] <revs>",
+                      description=helptext)
 parser.add_option("-f", "--file",
                   help="read revset from FILE (stdin if omitted)",
 parser.add_option("-R", "--repo",
                   help="run benchmark on REPO", metavar="REPO")

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