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#!/usr/bin/env python

"""Simple tools to query github.com and gather stats about issues.

To generate a report for IPython 2.0, run:

python github_stats.py --milestone 2.0 --since-tag rel-1.0.0

"""

#-----------------------------------------------------------------------------

# Imports

#-----------------------------------------------------------------------------

import sys

from argparse import ArgumentParser

from datetime import datetime, timedelta

from subprocess import check_output

from gh_api import (

get_paged_request, make_auth_header, get_pull_request, is_pull_request,

get_milestone_id, get_issues_list, get_authors,

)

#-----------------------------------------------------------------------------

# Globals

#-----------------------------------------------------------------------------

ISO8601 = "%Y-%m-%dT%H:%M:%SZ"

PER_PAGE = 100

#-----------------------------------------------------------------------------

# Functions

#-----------------------------------------------------------------------------

def round_hour(dt):

return dt.replace(minute=0,second=0,microsecond=0)

def _parse_datetime(s):

"""Parse dates in the format returned by the GitHub API."""

if s:

return datetime.strptime(s, ISO8601)

else:

return datetime.fromtimestamp(0)

def issues2dict(issues):

"""Convert a list of issues to a dict, keyed by issue number."""

idict = {}

for i in issues:

idict[i['number']] = i

return idict

def split_pulls(all_issues, project="matplotlib/matplotlib"):

"""Split a list of closed issues into non-PR Issues and Pull Requests."""

pulls = []

issues = []

for i in all_issues:

if is_pull_request(i):

pull = get_pull_request(project, i['number'], auth=True)

pulls.append(pull)

else:

issues.append(i)

return issues, pulls

def issues_closed_since(period=timedelta(days=365), project="matplotlib/matplotlib", pulls=False):

"""Get all issues closed since a particular point in time. period

can either be a datetime object, or a timedelta object. In the

latter case, it is used as a time before the present.

"""

which = 'pulls' if pulls else 'issues'

if isinstance(period, timedelta):

since = round_hour(datetime.utcnow() - period)

else:

since = period

url = "https://api.github.com/repos/%s/%s?state=closed&sort=updated&since=%s&per_page=%i" % (project, which, since.strftime(ISO8601), PER_PAGE)

allclosed = get_paged_request(url, headers=make_auth_header())

filtered = [ i for i in allclosed if _parse_datetime(i['closed_at']) > since ]

if pulls:

filtered = [ i for i in filtered if _parse_datetime(i['merged_at']) > since ]

# filter out PRs not against master (backports)

filtered = [ i for i in filtered if i['base']['ref'] == 'master' ]

else:

filtered = [ i for i in filtered if not is_pull_request(i) ]

return filtered

def sorted_by_field(issues, field='closed_at', reverse=False):

"""Return a list of issues sorted by closing date date."""

return sorted(issues, key = lambda i:i[field], reverse=reverse)

def report(issues, show_urls=False):

"""Summary report about a list of issues, printing number and title."""

if show_urls:

for i in issues:

role = 'ghpull' if 'merged_at' in i else 'ghissue'

print('* :%s:`%d`: %s' % (role, i['number'],

i['title'].replace('`', '``')))

else:

for i in issues:

print('* %d: %s' % (i['number'], i['title'].replace('`', '``')))

#-----------------------------------------------------------------------------

# Main script

#-----------------------------------------------------------------------------

if __name__ == "__main__":

# Whether to add reST urls for all issues in printout.

show_urls = True

parser = ArgumentParser()

parser.add_argument('--since-tag', type=str,

help="The git tag to use for the starting point (typically the last major release)."

)

parser.add_argument('--milestone', type=str,

help="The GitHub milestone to use for filtering issues [optional]."

)

parser.add_argument('--days', type=int,

help="The number of days of data to summarize (use this or --since-tag)."

)

parser.add_argument('--project', type=str, default="matplotlib/matplotlib",

help="The project to summarize."

)

parser.add_argument('--links', action='store_true', default=False,

help="Include links to all closed Issues and PRs in the output."

)

opts = parser.parse_args()

tag = opts.since_tag

# set `since` from days or git tag

if opts.days:

since = datetime.utcnow() - timedelta(days=opts.days)

else:

if not tag:

tag = check_output(['git', 'describe', '--abbrev=0']).strip().decode('utf8')

cmd = ['git', 'log', '-1', '--format=%ai', tag]

tagday, tz = check_output(cmd).strip().decode('utf8').rsplit(' ', 1)

since = datetime.strptime(tagday, "%Y-%m-%d %H:%M:%S")

h = int(tz[1:3])

m = int(tz[3:])

td = timedelta(hours=h, minutes=m)

if tz[0] == '-':

since += td

else:

since -= td

since = round_hour(since)

milestone = opts.milestone

project = opts.project

print("fetching GitHub stats since %s (tag: %s, milestone: %s)" % (since, tag, milestone), file=sys.stderr)

if milestone:

milestone_id = get_milestone_id(project=project, milestone=milestone,

auth=True)

issues_and_pulls = get_issues_list(project=project,

milestone=milestone_id,

state='closed',

auth=True,

)

issues, pulls = split_pulls(issues_and_pulls, project=project)

else:

issues = issues_closed_since(since, project=project, pulls=False)

pulls = issues_closed_since(since, project=project, pulls=True)

# For regular reports, it's nice to show them in reverse chronological order

issues = sorted_by_field(issues, reverse=True)

pulls = sorted_by_field(pulls, reverse=True)

n_issues, n_pulls = map(len, (issues, pulls))

n_total = n_issues + n_pulls

# Print summary report we can directly include into release notes.

print('.. _github-stats:')

print()

print('GitHub Stats')

print('============')

print()

since_day = since.strftime("%Y/%m/%d")

today = datetime.today().strftime("%Y/%m/%d")

print("GitHub stats for %s - %s (tag: %s)" % (since_day, today, tag))

print()

print("These lists are automatically generated, and may be incomplete or contain duplicates.")

print()

ncommits = 0

all_authors = []

if tag:

# print git info, in addition to GitHub info:

since_tag = tag+'..'

cmd = ['git', 'log', '--oneline', since_tag]

ncommits += len(check_output(cmd).splitlines())

author_cmd = ['git', 'log', '--use-mailmap', "--format=* %aN", since_tag]

all_authors.extend(check_output(author_cmd).decode('utf-8', 'replace').splitlines())

pr_authors = []

for pr in pulls:

pr_authors.extend(get_authors(pr))

ncommits = len(pr_authors) + ncommits - len(pulls)

author_cmd = ['git', 'check-mailmap'] + pr_authors

with_email = check_output(author_cmd).decode('utf-8', 'replace').splitlines()

all_authors.extend(['* ' + a.split(' <')[0] for a in with_email])

unique_authors = sorted(set(all_authors), key=lambda s: s.lower())

print("We closed %d issues and merged %d pull requests." % (n_issues, n_pulls))

if milestone:

print("The full list can be seen `on GitHub <https://github.com/%s/milestone/%s?closed=1>`__"

% (project, milestone_id)

)

print()

print("The following %i authors contributed %i commits." % (len(unique_authors), ncommits))

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