from __future__ import print_function
import json
import os
import shutil
import subprocess
from dcos import constants, util
from dcos.errors import DCOSException
logger = util.get_logger(__name__)
def command_executables(subcommand):
"""List the real path to executable dcos program for specified subcommand.
:param subcommand: name of subcommand. E.g. marathon
:type subcommand: str
:returns: the dcos program path
:rtype: str
"""
executables = [
command_path
for command_path in list_paths()
if noun(command_path) == subcommand
]
if len(executables) > 1:
msg = 'Found more than one executable for command {!r}.'
raise DCOSException(msg.format(subcommand))
import contextlib
import datetime
import functools
import json
import sys
import time
import six
from dcos import emitting, http, packagemanager, sse, util
from dcos.cosmos import get_cosmos_url
from dcos.errors import DCOSException, DefaultError
logger = util.get_logger(__name__)
emitter = emitting.FlatEmitter()
def _no_file_exception():
return DCOSException('No files exist. Exiting.')
def log_files(mesos_files, follow, lines):
"""Print the contents of the given `mesos_files`. Behaves like unix
tail.
:param mesos_files: file objects to print
:type mesos_files: [MesosFile]
:param follow: same as unix tail's -f
:type follow: bool
:param lines: number of lines to print
:type lines: int
