log-to-plot.py

import sys
import urllib
import urllib2
import json

def short_url(url):
    if not url:
        return None
    
    apiurl = 'https://www.googleapis.com/urlshortener/v1/url'
    data = json.dumps({'longUrl' : url})
    headers = {'Content-Type' : 'application/json'}
    r = urllib2.Request(apiurl, data, headers)
    
    try:
        retdata = urllib2.urlopen(r).read()
        retdata = json.loads(retdata)
        return retdata.get('id', url)
    except urllib2.URLError:
        return url
    except ValueError:
        return url

fname = sys.argv[1]
commits = []
with open(fname, 'r') as f:
    for line in f.readlines():
        co, data = line.split(' ', 1)
        data = eval(data)
        
        commits.append((co, data))

base_url = "https://chart.googleapis.com/chart"
GET = {}

minimums = map(lambda el: el[1]['minimum'], commits)
stddev_down = map(lambda el: el[1]['average'] - el[1]['standard deviation'], commits)
stddev_up = map(lambda el: el[1]['average'] + el[1]['standard deviation'], commits)
maximums = map(lambda el: el[1]['maximum'], commits)
averages = map(lambda el: el[1]['average'], commits)

data_series = [minimums, stddev_down, stddev_up, maximums, averages]
data_types = ['F,000000,0,1:-1,40', 'H,000000,0,1:-1,1:20', 'H,000000,3,1:-1,1:20', 'H,000000,4,1:-1,1:40']

data_series = map(lambda dat: '-1,' + ','.join(map(str, dat)) + ',-1', data_series)
GET['chd'] = 't0:' + '|'.join(data_series)
GET['chm'] = '|'.join(data_types)

GET['chs'] = '%ix225' % (len(commits) * 80 + 100,)
GET['cht'] = 'ls'
GET['chxt'] = 'y,x'
GET['chds'] = '%i,%i' % (min(minimums), max(maximums))
GET['chxr'] = '0,%i,%i' % (min(minimums), max(maximums))
GET['chxl'] = '1:||' + '|'.join(map(lambda el: el[0], commits)) + '|'

final_url = base_url + '?' + urllib.urlencode(GET)

print short_url(final_url)