[PATCH] perf: add perflist to make finding available perf commands easier

[Augie Fackler]

# HG changeset patch
# User Augie Fackler <augie at google.com>
# Date 1415979725 18000
#      Fri Nov 14 10:42:05 2014 -0500
# Node ID 481938f95e2a7babaac569a3288f237ec900a615
# Parent  787ccc893f1fe3fce36debddaa12d3223fa9efc5
perf: add perflist to make finding available perf commands easier

diff --git a/contrib/perf.py b/contrib/perf.py
--- a/contrib/perf.py
+++ b/contrib/perf.py
@@ -1,5 +1,7 @@
 # perf.py - performance test routines
-'''helper extension to measure performance'''
+'''helper extension to measure performance
+
+Run the perflist subcommand to list available measurements.'''
 
 from mercurial import cmdutil, scmutil, util, commands, obsolete
 from mercurial import repoview, branchmap, merge, copies
@@ -9,6 +11,13 @@ import functools
 cmdtable = {}
 command = cmdutil.command(cmdtable)
 
+ at command('perflist', norepo=True)
+def perflist(ui):
+    for c in cmdtable:
+        if c == 'perflist':
+            continue
+        ui.write('%s\n' % c)
+
 def gettimer(ui, opts=None):
     """return a timer function and formatter: (timer, formatter)