def _install_wagon(self, source, prefix):
pip_freeze_output = self._pip_freeze()
file_descriptor, constraint_path = tempfile.mkstemp(
prefix='constraint-', suffix='.txt')
os.close(file_descriptor)
try:
with open(constraint_path, 'wb') as constraint:
constraint.write(pip_freeze_output)
# Install the provided wagon.
# * The --prefix install_arg will cause the plugin to be installed under
# plugins_dir/{package_name}-{package_version}, So different plugins don't step on
# each other and don't interfere with the current virtualenv
# * The --constraint flag points a file containing the output of ``pip freeze``.
# It is required, to handle cases where plugins depend on some python package with
# a different version than the one installed in the current virtualenv. Without this
# flag, the existing package will be **removed** from the parent virtualenv and the
# new package will be installed under prefix. With the flag, the existing version will
# remain, and the version requested by the plugin will be ignored.
wagon.install(
source=source,
install_args='--prefix="{prefix}" --constraint="{constraint}"'.
format(prefix=prefix, constraint=constraint.name),
virtualenv=os.environ.get('VIRTUAL_ENV'))
finally:
os.remove(constraint_path)
def _wagon_install(plugin, venv, args):
client = get_rest_client()
wagon_dir = tempfile.mkdtemp(prefix='{0}-'.format(plugin.id))
wagon_path = os.path.join(wagon_dir, 'wagon.tar.gz')
try:
ctx.logger.debug('Downloading plugin %s from manager into %s',
plugin.id, wagon_path)
client.plugins.download(plugin_id=plugin.id, output_file=wagon_path)
ctx.logger.debug('Installing plugin %s using wagon', plugin.id)
wagon.install(wagon_path,
ignore_platform=True,
install_args=args,
venv=venv)
finally:
ctx.logger.debug('Removing directory: %s', wagon_dir)
shutil.rmtree(wagon_dir, ignore_errors=True)
def _wagon_install(self, plugin, args):
client = get_rest_client()
wagon_dir = tempfile.mkdtemp(prefix='{0}-'.format(plugin.id))
wagon_path = os.path.join(wagon_dir, 'wagon.tar.gz')
try:
self.logger.debug(
'Downloading plugin {0} from manager into {1}'.format(
plugin.id, wagon_path))
client.plugins.download(plugin_id=plugin.id,
output_file=wagon_path)
self.logger.debug('Installing plugin {0} using wagon'.format(
plugin.id))
wagon.install(wagon_path,
ignore_platform=True,
install_args=args,
venv=VIRTUALENV)
finally:
self.logger.debug('Removing directory: {0}'.format(wagon_dir))
self._rmtree(wagon_dir)
def _wagon_install(self, plugin, args):
client = get_rest_client()
wagon_dir = tempfile.mkdtemp(prefix='{0}-'.format(plugin.id))
wagon_path = os.path.join(wagon_dir, 'wagon.tar.gz')
try:
self.logger.debug('Downloading plugin {0} from manager into {1}'
.format(plugin.id, wagon_path))
client.plugins.download(plugin_id=plugin.id,
output_file=wagon_path)
self.logger.debug('Installing plugin {0} using wagon'
.format(plugin.id))
wagon.install(
wagon_path,
ignore_platform=True,
install_args=args,
venv=VIRTUALENV
)
finally:
self.logger.debug('Removing directory: {0}'
.format(wagon_dir))
self._rmtree(wagon_dir)