/brz/remove-bazaar

# Copyright (C) 2018 Jelmer Vernooij <jelmer@jelmer.uk>

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

"""Propose command implementations."""

from __future__ import absolute_import

from io import StringIO

from ... import (

    branch as _mod_branch,

    controldir,

    errors,

    log as _mod_log,

    missing as _mod_missing,

    msgeditor,

    urlutils,

    )

from ...i18n import gettext

from ...commands import Command

from ...option import (

    ListOption,

    Option,

    RegistryOption,

    )

from ...sixish import text_type

from ...trace import note

from . import (

    propose as _mod_propose,

    )

def branch_name(branch):

    if branch.name:

        return branch.name

    return urlutils.basename(branch.user_url)

class cmd_publish_derived(Command):

    __doc__ = """Publish a derived branch.

    Try to create a public copy of a local branch on a hosting site,

    derived from the specified base branch.

    Reasonable defaults are picked for owner name, branch name and project

    name, but they can also be overridden from the command-line.

    """

    takes_options = [

            'directory',

            Option('owner', help='Owner of the new remote branch.', type=str),

            Option('project', help='Project name for the new remote branch.',

                   type=str),

            Option('name', help='Name of the new remote branch.', type=str),

            Option('no-allow-lossy',

                   help='Allow fallback to lossy push, if necessary.'),

            Option('overwrite', help="Overwrite existing commits."),

            ]

    takes_args = ['submit_branch?']

    def run(self, submit_branch=None, owner=None, name=None, project=None,

            no_allow_lossy=False, overwrite=False, directory='.'):

        local_branch = _mod_branch.Branch.open_containing(directory)[0]

        self.add_cleanup(local_branch.lock_write().unlock)

        if submit_branch is None:

            submit_branch = local_branch.get_submit_branch()

            note(gettext('Using submit branch %s') % submit_branch)

        if submit_branch is None:

            submit_branch = local_branch.get_parent()

            note(gettext('Using parent branch %s') % submit_branch)

        submit_branch = _mod_branch.Branch.open(submit_branch)

        if name is None:

            name = branch_name(local_branch)

        hoster = _mod_propose.get_hoster(submit_branch)

        remote_branch, public_url = hoster.publish_derived(

                local_branch, submit_branch, name=name, project=project,

                owner=owner, allow_lossy=not no_allow_lossy,

                overwrite=overwrite)

        local_branch.set_push_location(remote_branch.user_url)

        local_branch.set_public_branch(public_url)

        note(gettext("Pushed to %s") % public_url)

def summarize_unmerged(local_branch, remote_branch, target):

    """Generate a text description of the unmerged revisions in branch.

    :param branch: The proposed branch

    :param target: Target branch

    :return: A string

    """

    log_format = _mod_log.log_formatter_registry.get_default(local_branch)

    to_file = StringIO()

    lf = log_format(to_file=to_file, show_ids=False, show_timezone='original')

    local_extra = _mod_missing.find_unmerged(

        remote_branch, target, restrict='local')[0]

    if remote_branch.supports_tags():

        rev_tag_dict = remote_branch.tags.get_reverse_tag_dict()

    else:

        rev_tag_dict = {}

    for revision in _mod_missing.iter_log_revisions(

            local_extra, local_branch.repository, False, rev_tag_dict):

        lf.log_revision(revision)

    return to_file.getvalue()

class cmd_propose_merge(Command):

    __doc__ = """Propose a branch for merging.

    This command creates a merge proposal for the local

    branch to the target branch. The format of the merge

    proposal depends on the submit branch.

    """

    takes_options = [

            'directory',

            RegistryOption(

                'hoster',

                help='Use the hoster.',

                lazy_registry=('breezy.plugins.propose.propose', 'hosters')),

            ListOption('reviewers', short_name='R', type=text_type,

                       help='Requested reviewers.'),

            Option('name', help='Name of the new remote branch.', type=str),

            Option('description', help='Description of the change.', type=str),

            ListOption('labels', short_name='l', type=text_type,

                       help='Labels to apply.'),

            Option('no-allow-lossy',

                   help='Allow fallback to lossy push, if necessary.'),

            ]

    takes_args = ['submit_branch?']

    aliases = ['propose']

    def run(self, submit_branch=None, directory='.', hoster=None,

            reviewers=None, name=None, no_allow_lossy=False, description=None,

            labels=None):

        tree, branch, relpath = (

            controldir.ControlDir.open_containing_tree_or_branch(directory))

        if submit_branch is None:

            submit_branch = branch.get_submit_branch()

        if submit_branch is None:

            submit_branch = branch.get_parent()

        if submit_branch is None:

            raise errors.BzrCommandError(

                gettext("No target location specified or remembered"))

        else:

            target = _mod_branch.Branch.open(submit_branch)

        if hoster is None:

            hoster = _mod_propose.get_hoster(target)

        else:

            hoster = hoster.probe(target)

        if name is None:

            name = branch_name(branch)

        remote_branch, public_branch_url = hoster.publish_derived(

                branch, target, name=name, allow_lossy=not no_allow_lossy)

        branch.set_push_location(remote_branch.user_url)

        note(gettext('Published branch to %s') % public_branch_url)

        proposal_builder = hoster.get_proposer(remote_branch, target)

        if description is None:

            body = proposal_builder.get_initial_body()

            info = proposal_builder.get_infotext()

            info += "\n\n" + summarize_unmerged(branch, remote_branch, target)

            description = msgeditor.edit_commit_message(

                info, start_message=body)

        try:

            proposal = proposal_builder.create_proposal(

                description=description, reviewers=reviewers, labels=labels)

        except _mod_propose.MergeProposalExists as e:

            raise errors.BzrCommandError(gettext(

                'There is already a branch merge proposal: %s') % e.url)

        note(gettext('Merge proposal created: %s') % proposal.url)

class cmd_find_merge_proposal(Command):

    __doc__ = """Find a merge proposal.

    """

    takes_options = ['directory']

    takes_args = ['submit_branch?']

    aliases = ['find-proposal']

    def run(self, directory='.', submit_branch=None):

        tree, branch, relpath = controldir.ControlDir.open_containing_tree_or_branch(

            directory)

        public_location = branch.get_public_branch()

        if public_location:

            branch = _mod_branch.Branch.open(public_location)

        if submit_branch is None:

            submit_branch = branch.get_submit_branch()

        if submit_branch is None:

            submit_branch = branch.get_parent()

        if submit_branch is None:

            raise errors.BzrCommandError(

                gettext("No target location specified or remembered"))

        else:

            target = _mod_branch.Branch.open(submit_branch)

        hoster = _mod_propose.get_hoster(branch)

        mp = hoster.get_proposal(branch, target)

        self.outf.write(gettext('Merge proposal: %s\n') % mp.url)

class cmd_github_login(Command):

    __doc__ = """Log into GitHub.

    """

    takes_args = ['username?']

    def run(self, username=None):

        from github import Github, GithubException

        from breezy.config import AuthenticationConfig

        authconfig = AuthenticationConfig()

        if username is None:

            username = authconfig.get_user(

                    'https', 'github.com', prompt=u'GitHub username', ask=True)

        password = authconfig.get_password('https', 'github.com', username)

        client = Github(username, password)

        user = client.get_user()

        try:

            authorization = user.create_authorization(

                    scopes=['user', 'repo', 'delete_repo'], note='Breezy',

                    note_url='https://github.com/breezy-team/breezy')

        except GithubException as e:

            errs = e.data.get('errors', [])

            if errs:

                err_code = errs[0].get('code')

                if err_code == u'already_exists':

                    raise errors.BzrCommandError('token already exists')

            raise errors.BzrCommandError(e.data['message'])

        # TODO(jelmer): This should really use something in

        # AuthenticationConfig

        from .github import store_github_token

        store_github_token(scheme='https', host='github.com',

                           token=authorization.token)