#-*- coding: utf-8 -*-
"""
(c) 2014 - Copyright Red Hat Inc
Authors:
Pierre-Yves Chibon <pingou@pingoured.fr>
"""
import datetime
import json
import os
import random
import shutil
import string
import tempfile
import uuid
import sqlalchemy
from datetime import timedelta
from sqlalchemy.orm import sessionmaker
from sqlalchemy.orm import scoped_session
from sqlalchemy.orm.exc import NoResultFound
from sqlalchemy.exc import SQLAlchemyError
import pygit2
import progit.exceptions
import progit.notify
from progit import model
def create_session(db_url, debug=False, pool_recycle=3600):
''' Create the Session object to use to query the database.
:arg db_url: URL used to connect to the database. The URL contains
information with regards to the database engine, the host to connect
to, the user and password and the database name.
ie: <engine>://<user>:<password>@<host>/<dbname>
:kwarg debug: a boolean specifying wether we should have the verbose
output of sqlalchemy or not.
:return a Session that can be used to query the database.
'''
engine = sqlalchemy.create_engine(
db_url, echo=debug, pool_recycle=pool_recycle)
scopedsession = scoped_session(sessionmaker(bind=engine))
return scopedsession
def id_generator(size=15, chars=string.ascii_uppercase + string.digits):
""" Generates a random identifier for the given size and using the
specified characters.
If no size is specified, it uses 15 as default.
If no characters are specified, it uses ascii char upper case and
digits.
:arg size: the size of the identifier to return.
:arg chars: the list of characters that can be used in the
idenfitier.
"""
return ''.join(random.choice(chars) for x in range(size))
def commit_to_patch(repo_obj, commits):
''' For a given commit (PyGit2 commit object) of a specified git repo,
returns a string representation of the changes the commit did in a
format that allows it to be used as patch.
'''
if not isinstance(commits, list):
commits = [commits]
patch = ""
for cnt, commit in enumerate(commits):
if commit.parents:
diff = commit.tree.diff_to_tree()
parent = repo_obj.revparse_single('%s^' % commit.oid.hex)
diff = repo_obj.diff(parent, commit)
else:
# First commit in the repo
diff = commit.tree.diff_to_tree(swap=True)
subject, message = commit.message.split('\n', 1)
if len(commits) > 1:
subject = '[PATCH %s/%s] %s' % (cnt + 1, len(commits), subject)
patch += """From %(commit)s Mon Sep 17 00:00:00 2001
From: %(author_name)s <%(author_email)s>
Date: %(date)s
Subject: %(subject)s
%(msg)s
---
%(patch)s
""" % (
{
'commit': commit.oid.hex,
'author_name': commit.author.name,
'author_email': commit.author.email,
'date': datetime.datetime.utcfromtimestamp(
commit.commit_time).strftime('%b %d %Y %H:%M:%S +0000'),
'subject': subject,
'msg': message,
'patch': diff.patch,
}
)
return patch
def get_user(session, username):
''' Return the user corresponding to this username, or None. '''
user = session.query(
model.User
).filter(
model.User.user == username
).first()
return user
def get_user_by_email(session, user_mail):
''' Return the user corresponding to this email, or None. '''
mail = session.query(
model.UserEmail
).filter(
model.UserEmail.email == user_mail
).first()
if mail:
return mail.user
def get_user_by_token(session, token):
''' Return a specified User via its token.
:arg session: the session with which to connect to the database.
'''
user = session.query(
model.User
).filter(
model.User.token == token
).first()
return user
def get_all_users(session):
''' Return the user corresponding to this username, or None. '''
users = session.query(
model.User
).all()
return users
def add_issue_comment(session, issue, comment, user, ticketfolder):
''' Add a comment to an issue. '''
user_obj = get_user(session, user)
if not user_obj:
user_obj = get_user_by_email(session, user)
if not user_obj:
raise progit.exceptions.ProgitException(
'No user "%s" found' % user
)
issue_comment = model.IssueComment(
issue_id=issue.id,
comment=comment,
user_id=user_obj.id,
)
session.add(issue_comment)
# Make sure we won't have SQLAlchemy error before we create the repo
session.flush()
update_git_ticket(issue, repo=issue.project, ticketfolder=ticketfolder)
progit.notify.notify_new_comment(issue_comment)
return 'Comment added'
def add_user_to_project(session, project, user):
''' Add a specified user to a specified project. '''
user_obj = get_user(session, user)
if not user_obj:
user_obj = get_user_by_email(session, user)
if not user_obj:
raise progit.exceptions.ProgitException(
'No user "%s" found' % user
)
project_user = model.ProjectUser(
project_id=project.id,
user_id=user_obj.id,
)
session.add(project_user)
# Make sure we won't have SQLAlchemy error before we create the repo
session.flush()
return 'Comment added'
def add_pull_request_comment(session, request, commit, row, comment, user):
''' Add a comment to a pull-request. '''
user_obj = get_user(session, user)
if not user_obj:
user_obj = get_user_by_email(session, user)
if not user_obj:
raise progit.exceptions.ProgitException(
'No user "%s" found' % user
)
pr_comment = model.PullRequestComment(
pull_request_id=request.id,
commit_id=commit,
line=row,
comment=comment,
user_id=user_obj.id,
)
session.add(pr_comment)
# Make sure we won't have SQLAlchemy error before we create the repo
session.flush()
return 'Comment added'
def get_user_project(session, username):
''' Retrieve the list of projects managed by a user.
'''
query = session.query(
model.Project
).filter(
model.Project.user == username
)
return query.all()
def new_project(session, user, name, gitfolder, docfolder, ticketfolder,
description=None, parent_id=None):
''' Create a new project based on the information provided.
'''
gitrepo = os.path.join(gitfolder, '%s.git' % name)
if os.path.exists(gitrepo):
raise progit.exceptions.RepoExistsException(
'The project repo "%s" already exists' % name
)
user_obj = get_user(session, user)
if not user_obj:
raise progit.exceptions.ProgitException(
'No user "%s" found' % user
)
project = model.Project(
name=name,
description=description,
user_id=user_obj.id,
parent_id=parent_id
)
session.add(project)
# Make sure we won't have SQLAlchemy error before we create the repo
session.flush()
pygit2.init_repository(gitrepo, bare=True)
gitrepo = os.path.join(docfolder, project.path)
if os.path.exists(gitrepo):
raise progit.exceptions.RepoExistsException(
'The docs repo "%s" already exists' % project.path
)
pygit2.init_repository(gitrepo, bare=True)
gitrepo = os.path.join(ticketfolder, project.path)
if os.path.exists(gitrepo):
raise progit.exceptions.RepoExistsException(
'The tickets repo "%s" already exists' % project.path
)
pygit2.init_repository(gitrepo, bare=True)
return 'Project "%s" created' % name
def new_issue(session, repo, title, content, user, ticketfolder):
''' Create a new issue for the specified repo. '''
user_obj = get_user(session, user)
if not user_obj:
raise progit.exceptions.ProgitException(
'No user "%s" found' % user
)
issue = model.Issue(
project_id=repo.id,
title=title,
content=content,
user_id=user_obj.id,
uid=uuid.uuid4().hex,
)
session.add(issue)
# Make sure we won't have SQLAlchemy error before we create the issue
session.flush()
global_id = model.GlobalId(
project_id=repo.id,
issue_id=issue.id,
)
session.add(global_id)
session.flush()
update_git_ticket(issue, repo=repo, ticketfolder=ticketfolder)
progit.notify.notify_new_issue(issue)
return 'Issue created'
def new_pull_request(
session, repo, repo_from, branch, title, user, stop_id,
start_id=None):
''' Create a new pull request on the specified repo. '''
user_obj = get_user(session, user)
if not user_obj:
raise progit.exceptions.ProgitException(
'No user "%s" found' % user
)
request = model.PullRequest(
project_id=repo.id,
project_id_from=repo_from.id,
branch=branch,
title=title,
start_id=start_id,
stop_id=stop_id,
user_id=user_obj.id,
)
session.add(request)
# Make sure we won't have SQLAlchemy error before we create the request
session.flush()
global_id = model.GlobalId(
project_id=repo.id,
request_id=request.id,
)
session.add(global_id)
session.flush()
return 'Request created'
def edit_issue(session, issue, ticketfolder,
title=None, content=None, status=None):
''' Edit the specified issue.
'''
edit = []
if title and title != issue.title:
issue.title = title
edit.append('title')
if content and content != issue.content:
issue.content = content
edit.append('content')
if status and status != issue.status:
issue.status = status
edit.append('status')
update_git_ticket(issue, repo=issue.project, ticketfolder=ticketfolder)
if not edit:
return 'No changes to edit'
else:
session.add(issue)
session.flush()
return 'Edited successfully issue #%s' % issue.id
def update_project_settings(session, repo, issue_tracker, project_docs):
''' Update the settings of a project. '''
update = []
if issue_tracker != repo.issue_tracker:
repo.issue_tracker = issue_tracker
update.append('issue_tracker')
if project_docs != repo.project_docs:
repo.project_docs = project_docs
update.append('project_docs')
if not update:
return 'No settings to change'
else:
session.add(repo)
session.flush()
return 'Edited successfully setting of repo: %s' % repo.fullname
def fork_project(session, user, repo, gitfolder,
forkfolder, docfolder,ticketfolder):
''' Fork a given project into the user's forks. '''
if repo.is_fork:
reponame = os.path.join(forkfolder, repo.path)
else:
reponame = os.path.join(gitfolder, repo.path)
forkreponame = '%s.git' % os.path.join(forkfolder, user, repo.name)
if repo.user.user == user:
raise progit.exceptions.RepoExistsException(
'You may not fork your own repo')
if os.path.exists(forkreponame):
raise progit.exceptions.RepoExistsException(
'Repo "%s/%s" already exists' % (user, repo.name))
user_obj = get_user(session, user)
if not user_obj:
raise progit.exceptions.ProgitException(
'No user "%s" found' % user
)
project = model.Project(
name=repo.name,
description=repo.description,
user_id=user_obj.id,
parent_id=repo.id
)
session.add(project)
# Make sure we won't have SQLAlchemy error before we create the repo
session.flush()
pygit2.clone_repository(reponame, forkreponame, bare=True)
gitrepo = os.path.join(docfolder, project.path)
if os.path.exists(gitrepo):
raise progit.exceptions.RepoExistsException(
'The docs "%s" already exists' % project.path
)
pygit2.init_repository(gitrepo, bare=True)
gitrepo = os.path.join(ticketfolder, project.path)
if os.path.exists(gitrepo):
raise progit.exceptions.RepoExistsException(
'The tickets repo "%s" already exists' % project.path
)
pygit2.init_repository(gitrepo, bare=True)
return 'Repo "%s" cloned to "%s/%s"' % (repo.name, user, repo.name)
def list_projects(
session, username=None, fork=None,
start=None, limit=None, count=False):
'''List existing projects
'''
projects = session.query(
model.Project
).order_by(
model.Project.date_created
)
if username is not None:
projects = projects.filter(
model.User.user == username
).filter(
model.User.id == model.Project.user_id
)
if fork is not None:
if fork is True:
projects = projects.filter(
model.Project.parent_id != None
)
elif fork is False:
projects = projects.filter(
model.Project.parent_id == None
)
if start is not None:
projects = projects.offset(start)
if limit is not None:
projects = projects.limit(limit)
if count:
return projects.count()
else:
return projects.all()
def get_project(session, name, user=None):
'''Get a project from the database
'''
query = session.query(
model.Project
).filter(
model.Project.name == name
)
if user is not None:
query = query.filter(
model.User.user == user
).filter(
model.User.id == model.Project.user_id
).filter(
model.Project.parent_id != None
)
else:
query = query.filter(
model.Project.parent_id == None
)
return query.first()
def get_issues(session, repo, status=None, closed=False):
''' Retrieve all the issues associated to a project
Watch out that the closed argument is incompatible with the status
argument. The closed argument will return all the issues whose status
is not 'Open', otherwise it will return the issues having the specified
status.
'''
subquery = session.query(
model.GlobalId,
sqlalchemy.over(
sqlalchemy.func.row_number(),
partition_by=model.GlobalId.project_id,
order_by=model.GlobalId.id
).label('global_id')
).subquery()
query = session.query(
model.Issue,
subquery.c.global_id
).filter(
subquery.c.issue_id == model.Issue.id
).filter(
subquery.c.project_id == model.Issue.project_id
).filter(
model.Issue.project_id == repo.id
).order_by(
model.Issue.id
)
if status is not None and not closed:
query = query.filter(
model.Issue.status == status
)
if closed:
query = query.filter(
model.Issue.status != 'Open'
)
return query.all()
def get_issue(session, projectid, issueid):
''' Retrieve the specified issue
'''
subquery = session.query(
model.GlobalId,
sqlalchemy.over(
sqlalchemy.func.row_number(),
partition_by=model.GlobalId.project_id,
order_by=model.GlobalId.id
).label('global_id')
).subquery()
query = session.query(
model.Issue
).filter(
model.Issue.project_id == projectid
).filter(
model.Issue.project_id == projectid
).filter(
subquery.c.project_id == model.Issue.project_id
).filter(
subquery.c.issue_id == model.Issue.id
).filter(
subquery.c.global_id == issueid
).order_by(
model.Issue.id
)
return query.first()
def get_pull_requests(
session, project_id=None, project_id_from=None, status=None):
''' Retrieve the specified issue
'''
subquery = session.query(
model.GlobalId,
sqlalchemy.over(
sqlalchemy.func.row_number(),
partition_by=model.GlobalId.project_id,
order_by=model.GlobalId.id
).label('global_id')
).subquery()
query = session.query(
model.PullRequest,
subquery.c.global_id
).filter(
subquery.c.request_id == model.PullRequest.id
).filter(
subquery.c.project_id == model.PullRequest.project_id
).order_by(
model.PullRequest.id
)
if project_id:
query = query.filter(
model.PullRequest.project_id == project_id
)
if project_id_from:
query = query.filter(
model.PullRequest.project_id_from == project_id_from
)
if status is not None:
query = query.filter(
model.PullRequest.status == status
)
return query.all()
def get_pull_request(
session, requestid, project_id=None, project_id_from=None):
''' Retrieve the specified issue
'''
subquery = session.query(
model.GlobalId,
sqlalchemy.over(
sqlalchemy.func.row_number(),
partition_by=model.GlobalId.project_id,
order_by=model.GlobalId.id
).label('global_id')
).subquery()
query = session.query(
model.PullRequest
).filter(
subquery.c.project_id == model.PullRequest.project_id
).filter(
subquery.c.request_id == model.PullRequest.id
).filter(
subquery.c.global_id == requestid
).order_by(
model.PullRequest.id
)
if project_id:
query = query.filter(
model.PullRequest.project_id == project_id
)
if project_id_from:
query = query.filter(
model.PullRequest.project_id_from == project_id_from
)
return query.first()
def close_pull_request(session, request):
''' Close the provided pull-request.
'''
request.status = False
session.add(request)
session.flush()
def get_issue_statuses(session):
''' Return the complete list of status an issue can have.
'''
output = []
statuses = session.query(model.StatusIssue).all()
for status in statuses:
output.append(status.status)
return output
def generate_gitolite_acls(session, configfile):
''' Generate the configuration file for gitolite for all projects
on the forge.
'''
config = []
for project in session.query(model.Project).all():
if project.parent_id:
config.append('repo forks/%s' % project.fullname)
else:
config.append('repo %s' % project.fullname)
config.append(' RW+ = %s' % project.user.user)
for user in project.users:
if user != project.user:
config.append(' RW+ = %s' % user.user.user)
config.append('')
config.append('repo docs/%s' % project.fullname)
config.append(' RW+ = %s' % project.user.user)
for user in project.users:
if user != project.user:
config.append(' RW+ = %s' % user.user.user)
config.append('')
config.append('repo tickets/%s' % project.fullname)
config.append(' RW+ = %s' % project.user.user)
for user in project.users:
if user != project.user:
config.append(' RW+ = %s' % user.user.user)
config.append('')
with open(configfile, 'w') as stream:
for row in config:
stream.write(row + '\n')
def set_up_user(session, username, fullname, user_email):
''' Set up a new user into the database or update its information. '''
user = get_user(session, username)
if not user:
user = model.User(
user=username,
fullname=fullname)
session.add(user)
session.flush()
if user.fullname != fullname:
user.fullname = fullname
session.add(user)
session.flush()
emails = [email.email for email in user.emails]
if user_email not in emails:
useremail = model.UserEmail(
user_id=user.id,
email=user_email)
session.add(useremail)
session.flush()
def update_user_ssh(session, user, ssh_key):
''' Set up a new user into the database or update its information. '''
if isinstance(user, basestring):
user = get_user(session, user)
message = 'Nothing to update'
if ssh_key != user.public_ssh_key:
user.public_ssh_key = ssh_key
session.add(user)
session.flush()
message = 'Public ssh key updated'
return message
def issue_to_json(issue):
""" Convert all the data related to an issue (a ticket) as json object.
"""
output = {
'title': issue.title,
'content': issue.content,
'status': issue.status,
'date_created': issue.date_created.strftime('%s'),
'user': {
'name': issue.user.user,
'emails': [email.email for email in issue.user.emails],
}
}
comments = []
for comment in issue.comments:
cmt = {
'id': comment.id,
'comment': comment.comment,
'parent': comment.parent_id,
'date_created': comment.date_created.strftime('%s'),
'user': {
'name': comment.user.user,
'emails': [email.email for email in comment.user.emails],
}
}
comments.append(cmt)
output['comments'] = comments
return json.dumps(output)
def update_git_ticket(issue, repo, ticketfolder):
""" Update the given issue in its git.
This method forks the provided repo, add/edit the issue whose file name
is defined by the uid field of the issue and if there are additions/
changes commit them and push them back to the original repo.
"""
# Get the fork
repopath = os.path.join(ticketfolder, repo.path)
ticket_repo = pygit2.Repository(repopath)
# Clone the repo into a temp folder
newpath = tempfile.mkdtemp()
new_repo = pygit2.clone_repository(repopath, newpath)
file_path = os.path.join(newpath, issue.uid)
# Get the current index
index = new_repo.index
# Are we adding files
added = False
if not os.path.exists(file_path):
added = True
# Write down what changed
with open(file_path, 'w') as stream:
stream.write(issue_to_json(issue))
# Retrieve the list of files that changed
diff = new_repo.diff()
files = [patch.new_file_path for patch in diff]
# Add the changes to the index
if added:
index.add(issue.uid)
for filename in files:
index.add(filename)
# If not change, return
if not files and not added:
shutil.rmtree(newpath)
return
# See if there is a parent to this commit
parent = None
try:
parent = new_repo.head.get_object().oid
except pygit2.GitError:
pass
parents = []
if parent:
parents.append(parent)
# Author/commiter will always be this one
author = pygit2.Signature(name='progit', email='progit')
# Actually commit
sha = new_repo.create_commit(
'refs/heads/master',
author,
author,
'Updated ticket %s: %s' % (issue.uid, issue.title),
new_repo.index.write_tree(),
parents)
index.write()
# Push to origin
ori_remote = new_repo.remotes[0]
master_ref = new_repo.lookup_reference('HEAD').resolve()
refname = '%s:%s' % (master_ref.name, master_ref.name)
ori_remote.push(refname)
# Remove the clone
shutil.rmtree(newpath)
def avatar_url(username, size=64, default='retro'):
openid = "http://%s.id.fedoraproject.org/" % username
return avatar_url_from_openid(openid, size, default)
def avatar_url_from_openid(openid, size=64, default='retro', dns=False):
"""
Our own implementation since fas doesn't support this nicely yet.
"""
if dns: # pragma: no cover
# This makes an extra DNS SRV query, which can slow down our webapps.
# It is necessary for libravatar federation, though.
import libravatar
return libravatar.libravatar_url(
openid=openid,
size=size,
default=default,
)
else:
import urllib, hashlib
query = urllib.urlencode({'s': size, 'd': default})
hash = hashlib.sha256(openid).hexdigest()
return "https://seccdn.libravatar.org/avatar/%s?%s" % (hash, query)
def get_session_by_visitkey(session, sessionid):
''' Return a specified VisitUser via its session identifier (visit_key).
:arg session: the session with which to connect to the database.
'''
query = session.query(
model.ProgitUserVisit
).filter(
model.ProgitUserVisit.visit_key == sessionid
)
return query.first()