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# Copyright (C) 2017 Lars Wirzenius
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import ick2
class WorkAPI(ick2.APIbase):
def __init__(self, state):
super().__init__(state)
self._type_name = 'work'
def get_routes(self, path): # pragma: no cover
return [
{
'method': 'GET',
'path': '{}/<worker>'.format(path),
'callback': self.GET(self.get_work),
},
{
'method': 'POST',
'path': path,
'callback': self.POST(self.update_work),
},
]
def get_work(self, worker):
worker_state = self._get_worker(worker)
if not worker_state.get('doing'):
project, pipeline = self._pick_triggered_pipeline()
if project is None:
doing = {}
else:
pipeline['status'] = 'building'
self._update_project(project)
build_id = self._start_build(project, pipeline, worker)
self._start_log(build_id)
index = 0
doing = {
'build_id': build_id,
'worker': worker,
'project': project['project'],
'pipeline': pipeline['name'],
'step': pipeline['actions'][index],
'step_index': index,
'log': '/logs/{}'.format(build_id),
}
worker_state = {
'worker': worker,
'doing': doing,
}
self._update_worker(worker_state)
return worker_state['doing']
def _get_worker(self, worker): # pragma: no cover
try:
return self._state.get_resource('workers', worker)
except ick2.NotFound:
return {
'worker': worker,
}
def _update_worker(self, worker_state):
self._state.update_resource(
'workers', worker_state['worker'], worker_state)
def _pick_triggered_pipeline(self):
projects = self._get_projects()
for project in projects:
for pipeline in project['pipelines']:
if pipeline.get('status') == 'triggered':
return project, pipeline
return None, None
def _get_projects(self):
return self._state.get_resources('projects')
def _update_project(self, project):
self._state.update_resource('projects', project['project'], project)
def update_work(self, update):
if 'worker' not in update: # pragma: no cover
raise ick2.BadUpdate('no worker specified')
worker_state = self._get_worker(update['worker'])
doing = worker_state.get('doing', {})
self._check_work_update(doing, update)
project, pipeline = self._get_pipeline(
update['project'], update['pipeline'])
self._append_to_build_log(update)
ick2.log.log(
'trace',
msg_text='xxx update_work',
update=update,
project=project,
pipeline=pipeline,
doing=doing)
exit_code = update.get('exit_code')
if exit_code == 0:
index = doing['step_index'] + 1
actions = pipeline['actions']
if index >= len(actions):
pipeline['status'] = 'idle'
doing = {}
self._finish_build(update)
else:
doing['step_index'] = index
doing['step'] = actions[index]
self._update_project(project)
worker_state = {
'worker': update['worker'],
'doing': doing,
}
self._update_worker(worker_state)
elif exit_code is not None:
assert isinstance(exit_code, int)
assert exit_code != 0
pipeline['status'] = 'idle'
self._update_project(project)
self._finish_build(update)
worker_state = {
'worker': update['worker'],
'doing': {},
}
self._update_worker(worker_state)
def _check_work_update(self, doing, update): # pragma: no cover
must_match = ['worker', 'project', 'pipeline', 'build_id']
for name in must_match:
if name not in update:
raise ick2.BadUpdate('{} not specified'.format(name))
if doing.get(name) != update[name]:
raise ick2.BadUpdate(
'{} differs from current work: {} vs {}'.format(
name, doing.get(name), update[name]))
def _get_pipeline(self, project, pipeline): # pragma: no cover
projects = self._get_projects()
for p in projects:
for pl in p['pipelines']:
if pl.get('name') == pipeline:
return p, pl
raise ick2.NotFound()
def _start_build(self, project, pipeline, worker):
ick2.log.log('info', msg_text='Starting new build')
build_id = project.get('build_id', 0)
build_id += 1
project['build_id'] = build_id
self._update_project(project)
build = {
'build_id': build_id,
'log': '/logs/{}'.format(build_id),
'worker': worker,
'project': project['project'],
'pipeline': pipeline['name'],
'status': 'building',
}
self._state.add_resource('builds', str(build_id), build)
return build_id
def _start_log(self, build_id):
ick2.log.log('info', msg_text='Starting new log', build_id=build_id)
log = {
'build_id': build_id,
'log': '',
}
self._state.add_resource('log', str(build_id), log)
return build_id
def _append_to_build_log(self, update):
build_id = update['build_id']
log = self._state.get_resource('log', str(build_id))
for kind in ['stdout', 'stderr']:
text = update.get(kind, '')
if text is not None:
log['log'] += text
self._state.update_resource('log', str(build_id), log)
def _finish_build(self, update):
build = self._state.get_resource('builds', str(update['build_id']))
build['status'] = update['exit_code']
self._state.update_resource('builds', str(update['build_id']), build)
def create(self, *args, **kwargs): # pragma: no cover
pass
def update(self, *args, **kwargs): # pragma: no cover
pass
def list(self, *args, **kwargs): # pragma: no cover
pass
def show(self, *args, **kwargs): # pragma: no cover
pass
def delete(self, *args, **kwargs): # pragma: no cover
pass
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