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"""Functions for Github API requests."""

from __future__ import print_function

try:

input = raw_input

except NameError:

pass

import os

import re

import sys

import requests

import getpass

import json

try:

import requests_cache

except ImportError:

print("no cache", file=sys.stderr)

else:

requests_cache.install_cache("gh_api", expire_after=3600)

# Keyring stores passwords by a 'username', but we're not storing a username and

# password

fake_username = 'ipython_tools'

class Obj(dict):

"""Dictionary with attribute access to names."""

def __getattr__(self, name):

try:

return self[name]

except KeyError:

raise AttributeError(name)

def __setattr__(self, name, val):

self[name] = val

token = None

def get_auth_token():

global token

if token is not None:

return token

import keyring

token = keyring.get_password('github', fake_username)

if token is not None:

return token

print("Please enter your github username and password. These are not "

"stored, only used to get an oAuth token. You can revoke this at "

"any time on Github.")

user = input("Username: ")

pw = getpass.getpass("Password: ")

auth_request = {

"scopes": [

"public_repo",

"gist"

"note": "IPython tools",

"note_url": "https://github.com/ipython/ipython/tree/master/tools",

}

response = requests.post('https://api.github.com/authorizations',

auth=(user, pw), data=json.dumps(auth_request))

response.raise_for_status()

token = json.loads(response.text)['token']

keyring.set_password('github', fake_username, token)

return token

def make_auth_header():

return {'Authorization': 'token ' + get_auth_token()}

def post_issue_comment(project, num, body):

url = 'https://api.github.com/repos/{project}/issues/{num}/comments'.format(project=project, num=num)

payload = json.dumps({'body': body})

requests.post(url, data=payload, headers=make_auth_header())

def post_gist(content, description='', filename='file', auth=False):

"""Post some text to a Gist, and return the URL."""

post_data = json.dumps({

"description": description,

"public": True,

"files": {

filename: {

"content": content

}

}).encode('utf-8')

headers = make_auth_header() if auth else {}

response = requests.post("https://api.github.com/gists", data=post_data, headers=headers)

response.raise_for_status()

response_data = json.loads(response.text)

return response_data['html_url']

def get_pull_request(project, num, auth=False):

"""get pull request info by number

"""

url = "https://api.github.com/repos/{project}/pulls/{num}".format(project=project, num=num)

if auth:

header = make_auth_header()

else:

header = None

print("fetching %s" % url, file=sys.stderr)

response = requests.get(url, headers=header)

response.raise_for_status()

return json.loads(response.text, object_hook=Obj)

def get_pull_request_files(project, num, auth=False):

"""get list of files in a pull request"""

url = "https://api.github.com/repos/{project}/pulls/{num}/files".format(project=project, num=num)

if auth:

header = make_auth_header()

else:

header = None

return get_paged_request(url, headers=header)

element_pat = re.compile(r'<(.+?)>')

rel_pat = re.compile(r'rel=[\'"](\w+)[\'"]')

def get_paged_request(url, headers=None, **params):

"""get a full list, handling APIv3's paging"""

results = []

params.setdefault("per_page", 100)

while True:

if '?' in url:

params = None

print("fetching %s" % url, file=sys.stderr)

else:

print("fetching %s with %s" % (url, params), file=sys.stderr)

response = requests.get(url, headers=headers, params=params)

response.raise_for_status()

results.extend(response.json())

if 'next' in response.links:

url = response.links['next']['url']

else:

break

return results

def get_pulls_list(project, auth=False, **params):

"""get pull request list"""

params.setdefault("state", "closed")

url = "https://api.github.com/repos/{project}/pulls".format(project=project)

if auth:

headers = make_auth_header()

else:

headers = None

pages = get_paged_request(url, headers=headers, **params)

return pages

def get_issues_list(project, auth=False, **params):

"""get issues list"""

params.setdefault("state", "closed")

url = "https://api.github.com/repos/{project}/issues".format(project=project)

if auth:

headers = make_auth_header()

else:

headers = None

pages = get_paged_request(url, headers=headers, **params)

return pages

def get_milestones(project, auth=False, **params):

params.setdefault('state', 'all')

url = "https://api.github.com/repos/{project}/milestones".format(project=project)

if auth:

headers = make_auth_header()

else:

headers = None

milestones = get_paged_request(url, headers=headers, **params)

return milestones

def get_milestone_id(project, milestone, auth=False, **params):

milestones = get_milestones(project, auth=auth, **params)

for mstone in milestones:

if mstone['title'] == milestone:

return mstone['number']

else:

raise ValueError("milestone %s not found" % milestone)

def is_pull_request(issue):

"""Return True if the given issue is a pull request."""

return bool(issue.get('pull_request', {}).get('html_url', None))

def get_authors(pr):

print("getting authors for #%i" % pr['number'], file=sys.stderr)

h = make_auth_header()

r = requests.get(pr['commits_url'], headers=h)

r.raise_for_status()

commits = r.json()

authors = []

for commit in commits:

author = commit['commit']['author']

authors.append("%s <%s>" % (author['name'], author['email']))

return authors

# encode_multipart_formdata is from urllib3.filepost

# The only change is to iter_fields, to enforce S3's required key ordering

def iter_fields(fields):

fields = fields.copy()

for key in ('key', 'acl', 'Filename', 'success_action_status', 'AWSAccessKeyId',

'Policy', 'Signature', 'Content-Type', 'file'):

yield (key, fields.pop(key))

for (k,v) in fields.items():

yield k,v

def encode_multipart_formdata(fields, boundary=None):

"""

Encode a dictionary of ``fields`` using the multipart/form-data mime format.

:param fields:

Dictionary of fields or list of (key, value) field tuples. The key is

treated as the field name, and the value as the body of the form-data

bytes. If the value is a tuple of two elements, then the first element

is treated as the filename of the form-data section.

Field names and filenames must be unicode.

:param boundary:

If not specified, then a random boundary will be generated using

:func:`mimetools.choose_boundary`.

"""

# copy requests imports in here:

from io import BytesIO

from requests.packages.urllib3.filepost import (

choose_boundary, six, writer, b, get_content_type

)

body = BytesIO()

if boundary is None:

boundary = choose_boundary()

for fieldname, value in iter_fields(fields):

body.write(b('--%s\r\n' % (boundary)))

if isinstance(value, tuple):

filename, data = value

writer(body).write('Content-Disposition: form-data; name="%s"; '

'filename="%s"\r\n' % (fieldname, filename))

body.write(b('Content-Type: %s\r\n\r\n' %

(get_content_type(filename))))

else:

data = value

writer(body).write('Content-Disposition: form-data; name="%s"\r\n'

% (fieldname))

body.write(b'Content-Type: text/plain\r\n\r\n')

if isinstance(data, int):

data = str(data) # Backwards compatibility

if isinstance(data, six.text_type):

writer(body).write(data)

else:

body.write(data)

body.write(b'\r\n')

body.write(b('--%s--\r\n' % (boundary)))

content_type = b('multipart/form-data; boundary=%s' % boundary)

return body.getvalue(), content_type

def post_download(project, filename, name=None, description=""):

"""Upload a file to the GitHub downloads area"""

if name is None:

name = os.path.basename(filename)

with open(filename, 'rb') as f:

filedata = f.read()

url = "https://api.github.com/repos/{project}/downloads".format(project=project)