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# Copyright (C) 2010-2012 Aleksey Lim
#
# 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 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import os
import shutil
import logging
from os.path import join, exists, basename
from zeroinstall.injector import model
from zeroinstall.injector.requirements import Requirements
from sugar_network.zerosugar import pipe, packagekit, Spec
from sugar_network.zerosugar.solution import solve
from sugar_network import local
from sugar_network.toolkit import sugar
from active_toolkit import util, enforce
_logger = logging.getLogger('zerosugar.injector')
def launch(mountpoint, context, command='activity', args=None):
return pipe.fork(_launch, mountpoint, context, command, args)
def checkin(mountpoint, context, command='activity'):
return pipe.fork(_checkin, mountpoint, context, command)
def _launch(mountpoint, context, command, args):
if args is None:
args = []
solution = _make(context, command)
cmd = solution.commands[0]
args = cmd.path.split() + args
_logger.info('Executing %s: %s', solution.interface, args)
pipe.progress('exec')
if command == 'activity':
_activity_env(solution.top, os.environ)
os.execvpe(args[0], args, os.environ)
def _checkin(mountpoint, context, command):
solution = _make(context, command)
checkedin = []
try:
for sel, __, __ in solution.walk():
dst_path = util.unique_filename(
local.activity_dirs.value[0], basename(sel.local_path))
checkedin.append(dst_path)
_logger.info('Checkin implementation to %r', dst_path)
util.cptree(sel.local_path, dst_path)
except Exception:
while checkedin:
shutil.rmtree(checkedin.pop(), ignore_errors=True)
raise
def _make(context, command):
requirement = Requirements(context)
requirement.command = command
pipe.progress('analyze')
solution = solve(requirement)
to_install = []
for sel, __, __ in solution.walk():
to_install.extend(sel.to_install or [])
if to_install:
packagekit.install(to_install)
for sel, __, __ in solution.walk():
if sel.is_available():
continue
enforce(sel.download_sources,
'No sources to download implementation for %r context',
sel.interface)
# TODO Per download progress
pipe.progress('download')
impl = sel.client.get(['implementation', sel.id, 'data'],
cmd='get_blob')
enforce(impl and 'path' in impl, 'Cannot download implementation')
impl_path = impl['path']
dl = sel.download_sources[0]
if dl.extract is not None:
impl_path = join(impl_path, dl.extract)
sel.local_path = impl_path
pipe.progress('ready', session={'implementation': solution.top.id})
return solution
def _activity_env(selection, environ):
root = sugar.profile_path('data', selection.interface)
for path in ['instance', 'data', 'tmp']:
path = join(root, path)
if not exists(path):
os.makedirs(path)
# TODO Any way to avoid loading spec file?
spec = Spec(root=selection.local_path)
environ['SUGAR_BUNDLE_PATH'] = selection.local_path
environ['SUGAR_BUNDLE_ID'] = selection.feed.context
environ['SUGAR_BUNDLE_NAME'] = spec['Activity', 'name']
environ['SUGAR_BUNDLE_VERSION'] = model.format_version(selection.version)
environ['SUGAR_ACTIVITY_ROOT'] = root
environ['PYTHONPATH'] = '%s:%s' % \
(selection.local_path, environ['PYTHONPATH'])
environ['SUGAR_LOCALEDIR'] = join(selection.local_path, 'locale')
bin_path = join(selection.local_path, 'bin')
if exists(bin_path):
environ['PATH'] = bin_path + ':' + environ['PATH']
# TODO Do it only once on unzip
# Activities might call bin/* files but python zipfile module
# doesn't set exec permissions while extracting
for filename in os.listdir(bin_path):
os.chmod(join(bin_path, filename), 0755)
os.chdir(selection.local_path)
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