mirror of
https://github.com/wassname/scikit-image.git
synced 2026-06-28 02:01:40 +08:00
Stefan van der Walt
131 lines
3.3 KiB
Python
131 lines
3.3 KiB
Python
import urllib
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import json
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import copy
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from collections import OrderedDict
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import matplotlib.pyplot as plt
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from matplotlib.ticker import FuncFormatter
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import dateutil.parser
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from dateutil.relativedelta import relativedelta
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from datetime import datetime, timedelta
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cache = '_pr_cache.txt'
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# Obtain release dates using, e.g.,
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#
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# git log v0.4 -n 1 --format='%ai'
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#
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# The first two releases are commented out.
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# This was in the era before PRs.
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#
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releases = OrderedDict([
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#('0.1', u'2009-10-07 13:52:19 +0200'),
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#('0.2', u'2009-11-12 14:48:45 +0200'),
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('0.3', u'2011-10-10 03:28:47 -0700'),
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('0.4', u'2011-12-03 14:31:32 -0800')])
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month_duration = 16
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for r in releases:
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releases[r] = dateutil.parser.parse(releases[r])
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def fetch_PRs(user='scikits-image', repo='scikits-image', state='open'):
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params = {'state': state,
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'per_page': 100,
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'page': 1}
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data = []
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page_data = True
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while page_data:
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config = {'user': user,
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'repo': repo,
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'params': urllib.urlencode(params)}
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fetch_status = 'Fetching page %(page)d (state=%(state)s)' % params + \
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' from %(user)s/%(repo)s...' % config
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print fetch_status
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f = urllib.urlopen(
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'https://api.github.com/repos/%(user)s/%(repo)s/pulls?%(params)s' \
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% config
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)
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params['page'] += 1
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page_data = json.loads(f.read())
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if 'message' in page_data and page_data['message'] == "Not Found":
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page_data = []
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print 'Warning: Repo not found (%(user)s/%(repo)s)' % config
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else:
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data.extend(page_data)
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return data
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try:
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PRs = json.loads(open(cache, 'r').read())
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print 'Loaded PRs from cache...'
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except IOError:
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PRs = fetch_PRs(user='stefanv', repo='scikits.image', state='closed')
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PRs.extend(fetch_PRs(state='open'))
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PRs.extend(fetch_PRs(state='closed'))
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cf = open(cache, 'w')
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cf.write(json.dumps(PRs))
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cf.flush()
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nrs = [pr['number'] for pr in PRs]
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print 'Processing %d pull requests...' % len(nrs)
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dates = [dateutil.parser.parse(pr['created_at']) for pr in PRs]
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epoch = datetime(2009, 1, 1, tzinfo=dates[0].tzinfo)
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def seconds_from_epoch(dates):
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seconds = [(dt - epoch).total_seconds() for dt in dates]
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return seconds
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dates_f = seconds_from_epoch(dates)
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def date_formatter(value, _):
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dt = epoch + timedelta(seconds=value)
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return dt.strftime('%Y/%m')
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plt.figure(figsize=(7, 5))
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now = datetime.now(tz=dates[0].tzinfo)
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this_month = datetime(year=now.year, month=now.month, day=1,
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tzinfo=dates[0].tzinfo)
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bins = [this_month - relativedelta(months=i) \
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for i in reversed(range(-1, month_duration))]
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bins = seconds_from_epoch(bins)
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plt.hist(dates_f, bins=bins)
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ax = plt.gca()
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ax.xaxis.set_major_formatter(FuncFormatter(date_formatter))
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ax.set_xticks(bins[:-1])
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labels = ax.get_xticklabels()
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for l in labels:
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l.set_rotation(40)
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l.set_size(10)
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for version, date in releases.items():
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date = seconds_from_epoch([date])[0]
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plt.axvline(date, color='r', label=version)
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plt.title('Pull request activity').set_y(1.05)
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plt.xlabel('Date')
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plt.ylabel('PRs created')
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plt.legend(loc=2, title='Release')
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plt.subplots_adjust(top=0.875, bottom=0.225)
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plt.savefig('PRs.png')
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plt.show()
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