compose/fig/cli/command.py

115 lines
4.1 KiB
Python

from __future__ import unicode_literals
from __future__ import absolute_import
from requests.exceptions import ConnectionError, SSLError
import errno
import logging
import os
import re
import yaml
import six
from ..project import Project
from ..service import ConfigError
from .docopt_command import DocoptCommand
from .utils import call_silently, is_mac, is_ubuntu
from .docker_client import docker_client
from . import verbose_proxy
from . import errors
from .. import __version__
log = logging.getLogger(__name__)
class Command(DocoptCommand):
base_dir = '.'
def dispatch(self, *args, **kwargs):
try:
super(Command, self).dispatch(*args, **kwargs)
except SSLError, e:
raise errors.UserError('SSL error: %s' % e)
except ConnectionError:
if call_silently(['which', 'docker']) != 0:
if is_mac():
raise errors.DockerNotFoundMac()
elif is_ubuntu():
raise errors.DockerNotFoundUbuntu()
else:
raise errors.DockerNotFoundGeneric()
elif call_silently(['which', 'boot2docker']) == 0:
raise errors.ConnectionErrorBoot2Docker()
else:
raise errors.ConnectionErrorGeneric(self.get_client().base_url)
def perform_command(self, options, handler, command_options):
if options['COMMAND'] == 'help':
# Skip looking up the figfile.
handler(None, command_options)
return
explicit_config_path = options.get('--file') or os.environ.get('FIG_FILE')
project = self.get_project(
self.get_config_path(explicit_config_path),
project_name=options.get('--project-name'),
verbose=options.get('--verbose'))
handler(project, command_options)
def get_client(self, verbose=False):
client = docker_client()
if verbose:
version_info = six.iteritems(client.version())
log.info("Fig version %s", __version__)
log.info("Docker base_url: %s", client.base_url)
log.info("Docker version: %s",
", ".join("%s=%s" % item for item in version_info))
return verbose_proxy.VerboseProxy('docker', client)
return client
def get_config(self, config_path):
try:
with open(config_path, 'r') as fh:
return yaml.safe_load(fh)
except IOError as e:
if e.errno == errno.ENOENT:
raise errors.FigFileNotFound(os.path.basename(e.filename))
raise errors.UserError(six.text_type(e))
def get_project(self, config_path, project_name=None, verbose=False):
try:
return Project.from_config(
self.get_project_name(config_path, project_name),
self.get_config(config_path),
self.get_client(verbose=verbose))
except ConfigError as e:
raise errors.UserError(six.text_type(e))
def get_project_name(self, config_path, project_name=None):
def normalize_name(name):
return re.sub(r'[^a-z0-9]', '', name.lower())
project_name = project_name or os.environ.get('FIG_PROJECT_NAME')
if project_name is not None:
return normalize_name(project_name)
project = os.path.basename(os.path.dirname(os.path.abspath(config_path)))
if project:
return normalize_name(project)
return 'default'
def get_config_path(self, file_path=None):
if file_path:
return os.path.join(self.base_dir, file_path)
if os.path.exists(os.path.join(self.base_dir, 'fig.yaml')):
log.warning("Fig just read the file 'fig.yaml' on startup, rather "
"than 'fig.yml'")
log.warning("Please be aware that fig.yml the expected extension "
"in most cases, and using .yaml can cause compatibility "
"issues in future")
return os.path.join(self.base_dir, 'fig.yaml')
return os.path.join(self.base_dir, 'fig.yml')