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#!/usr/bin/env python
#
# Copyright (C) 2012 Codethink Limited
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
import cliapp
import glob
import json
import os
import re
import StringIO
class ExtractBuildTimes(cliapp.Application):
'''Extracts build times of chunks in a morph cache directory.
Given a morph cache directory as the first argument, this app finds all
cached chunks, loads their meta data and prints their build times.
'''
def process_args(self, args):
cachedir = args[0]
def chunk_hash(chunk):
short = re.split('\.', chunk)
return os.path.basename(short[-3])
def chunk_name(chunk):
short = re.split('\.', chunk)
return short[-1]
chunks = glob.glob(os.path.join(cachedir, '*.chunk.*'))
items = []
for chunk in chunks:
hash = chunk_hash(chunk)
metafile = os.path.join(cachedir, '%s.meta' % hash)
with open(metafile) as f:
data = f.read()
io = StringIO.StringIO(data)
metainfo = json.load(io)
time = metainfo['build-times']['overall-build']['delta']
minutes = float(time) / 60.0
items.append((chunk_name(chunk), minutes))
items = sorted(items, key=lambda x: x[1], reverse=True)
print '%s' % (43 * '-')
print 'Build times of cached chunks in'
print '%s' % cachedir
print '%s' % (43 * '-')
sum = 0.0
for name, time in items:
print '%30s: %6.1f mins' % (name, time)
sum += time
print '%s' % (43 * '-')
print '%30s: %6.1f mins' % ('total', sum)
if __name__ == '__main__':
ExtractBuildTimes().run()
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