mirror of https://github.com/docker/docs.git
70 lines
1.9 KiB
Python
70 lines
1.9 KiB
Python
from __future__ import absolute_import
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from __future__ import division
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from __future__ import unicode_literals
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import os
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import platform
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import ssl
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import subprocess
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from docker import version as docker_py_version
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from six.moves import input
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from .. import __version__
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def yesno(prompt, default=None):
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"""
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Prompt the user for a yes or no.
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Can optionally specify a default value, which will only be
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used if they enter a blank line.
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Unrecognised input (anything other than "y", "n", "yes",
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"no" or "") will return None.
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"""
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answer = input(prompt).strip().lower()
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if answer == "y" or answer == "yes":
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return True
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elif answer == "n" or answer == "no":
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return False
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elif answer == "":
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return default
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else:
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return None
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def call_silently(*args, **kwargs):
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"""
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Like subprocess.call(), but redirects stdout and stderr to /dev/null.
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"""
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with open(os.devnull, 'w') as shutup:
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try:
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return subprocess.call(*args, stdout=shutup, stderr=shutup, **kwargs)
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except WindowsError:
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# On Windows, subprocess.call() can still raise exceptions. Normalize
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# to POSIXy behaviour by returning a nonzero exit code.
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return 1
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def is_mac():
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return platform.system() == 'Darwin'
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def is_ubuntu():
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return platform.system() == 'Linux' and platform.linux_distribution()[0] == 'Ubuntu'
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def get_version_info(scope):
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versioninfo = 'docker-compose version: %s' % __version__
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if scope == 'compose':
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return versioninfo
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elif scope == 'full':
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return versioninfo + '\n' \
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+ "docker-py version: %s\n" % docker_py_version \
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+ "%s version: %s\n" % (platform.python_implementation(), platform.python_version()) \
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+ "OpenSSL version: %s" % ssl.OPENSSL_VERSION
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else:
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raise RuntimeError('passed unallowed value to `cli.utils.get_version_info`')
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