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108 lines
2.6 KiB
Python
108 lines
2.6 KiB
Python
from __future__ import unicode_literals
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from __future__ import absolute_import
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from __future__ import division
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import datetime
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import os
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import subprocess
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import platform
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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 = raw_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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# http://stackoverflow.com/a/5164027
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def prettydate(d):
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diff = datetime.datetime.utcnow() - d
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s = diff.seconds
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if diff.days > 7 or diff.days < 0:
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return d.strftime('%d %b %y')
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elif diff.days == 1:
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return '1 day ago'
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elif diff.days > 1:
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return '{0} days ago'.format(diff.days)
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elif s <= 1:
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return 'just now'
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elif s < 60:
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return '{0} seconds ago'.format(s)
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elif s < 120:
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return '1 minute ago'
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elif s < 3600:
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return '{0} minutes ago'.format(s / 60)
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elif s < 7200:
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return '1 hour ago'
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else:
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return '{0} hours ago'.format(s / 3600)
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def mkdir(path, permissions=0o700):
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if not os.path.exists(path):
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os.mkdir(path)
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os.chmod(path, permissions)
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return path
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def docker_url():
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return os.environ.get('DOCKER_HOST')
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def split_buffer(reader, separator):
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"""
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Given a generator which yields strings and a separator string,
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joins all input, splits on the separator and yields each chunk.
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Unlike string.split(), each chunk includes the trailing
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separator, except for the last one if none was found on the end
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of the input.
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"""
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buffered = str('')
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separator = str(separator)
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for data in reader:
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buffered += data
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while True:
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index = buffered.find(separator)
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if index == -1:
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break
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yield buffered[:index + 1]
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buffered = buffered[index + 1:]
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if len(buffered) > 0:
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yield buffered
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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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return subprocess.call(*args, stdout=shutup, stderr=shutup, **kwargs)
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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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