Current File : //lib/python2.7/site-packages/ansible/utils/display.py
# (c) 2014, Michael DeHaan <michael.dehaan@gmail.com>
#
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
import fcntl
import textwrap
import os
import random
import subprocess
import sys
import time
import locale
import logging
import getpass
import errno
from struct import unpack, pack
from termios import TIOCGWINSZ
from ansible import constants as C
from ansible.errors import AnsibleError
from ansible.utils.color import stringc
from ansible.module_utils._text import to_bytes, to_text
try:
# Python 2
input = raw_input
except NameError:
# Python 3, we already have raw_input
pass
logger = None
#TODO: make this a logging callback instead
if C.DEFAULT_LOG_PATH:
path = C.DEFAULT_LOG_PATH
if (os.path.exists(path) and os.access(path, os.W_OK)) or os.access(os.path.dirname(path), os.W_OK):
logging.basicConfig(filename=path, level=logging.DEBUG, format='%(asctime)s %(name)s %(message)s')
mypid = str(os.getpid())
user = getpass.getuser()
logger = logging.getLogger("p=%s u=%s | " % (mypid, user))
else:
print("[WARNING]: log file at %s is not writeable and we cannot create it, aborting\n" % path, file=sys.stderr)
b_COW_PATHS = (b"/usr/bin/cowsay",
b"/usr/games/cowsay",
b"/usr/local/bin/cowsay", # BSD path for cowsay
b"/opt/local/bin/cowsay", # MacPorts path for cowsay
)
class Display:
def __init__(self, verbosity=0):
self.columns = None
self.verbosity = verbosity
# list of all deprecation messages to prevent duplicate display
self._deprecations = {}
self._warns = {}
self._errors = {}
self.b_cowsay = None
self.noncow = C.ANSIBLE_COW_SELECTION
self.set_cowsay_info()
if self.b_cowsay:
try:
cmd = subprocess.Popen([self.b_cowsay, "-l"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
(out, err) = cmd.communicate()
self.cows_available = [ to_bytes(c) for c in set(C.ANSIBLE_COW_WHITELIST).intersection(out.split())]
except:
# could not execute cowsay for some reason
self.b_cowsay = False
self._set_column_width()
def set_cowsay_info(self):
if not C.ANSIBLE_NOCOWS:
for b_cow_path in b_COW_PATHS:
if os.path.exists(b_cow_path):
self.b_cowsay = b_cow_path
def display(self, msg, color=None, stderr=False, screen_only=False, log_only=False):
""" Display a message to the user
Note: msg *must* be a unicode string to prevent UnicodeError tracebacks.
"""
# FIXME: this needs to be implemented
#msg = utils.sanitize_output(msg)
nocolor = msg
if color:
msg = stringc(msg, color)
if not log_only:
if not msg.endswith(u'\n'):
msg2 = msg + u'\n'
else:
msg2 = msg
msg2 = to_bytes(msg2, encoding=self._output_encoding(stderr=stderr))
if sys.version_info >= (3,):
# Convert back to text string on python3
# We first convert to a byte string so that we get rid of
# characters that are invalid in the user's locale
msg2 = to_text(msg2, self._output_encoding(stderr=stderr), errors='replace')
if not stderr:
fileobj = sys.stdout
else:
fileobj = sys.stderr
fileobj.write(msg2)
try:
fileobj.flush()
except IOError as e:
# Ignore EPIPE in case fileobj has been prematurely closed, eg.
# when piping to "head -n1"
if e.errno != errno.EPIPE:
raise
if logger and not screen_only:
msg2 = nocolor.lstrip(u'\n')
msg2 = to_bytes(msg2)
if sys.version_info >= (3,):
# Convert back to text string on python3
# We first convert to a byte string so that we get rid of
# characters that are invalid in the user's locale
msg2 = to_text(msg2, self._output_encoding(stderr=stderr))
if color == C.COLOR_ERROR:
logger.error(msg2)
else:
logger.info(msg2)
def v(self, msg, host=None):
return self.verbose(msg, host=host, caplevel=0)
def vv(self, msg, host=None):
return self.verbose(msg, host=host, caplevel=1)
def vvv(self, msg, host=None):
return self.verbose(msg, host=host, caplevel=2)
def vvvv(self, msg, host=None):
return self.verbose(msg, host=host, caplevel=3)
def vvvvv(self, msg, host=None):
return self.verbose(msg, host=host, caplevel=4)
def vvvvvv(self, msg, host=None):
return self.verbose(msg, host=host, caplevel=5)
def debug(self, msg):
if C.DEFAULT_DEBUG:
self.display("%6d %0.5f: %s" % (os.getpid(), time.time(), msg), color=C.COLOR_DEBUG)
def verbose(self, msg, host=None, caplevel=2):
# FIXME: this needs to be implemented
#msg = utils.sanitize_output(msg)
if self.verbosity > caplevel:
if host is None:
self.display(msg, color=C.COLOR_VERBOSE)
else:
self.display("<%s> %s" % (host, msg), color=C.COLOR_VERBOSE, screen_only=True)
def deprecated(self, msg, version=None, removed=False):
''' used to print out a deprecation message.'''
if not removed and not C.DEPRECATION_WARNINGS:
return
if not removed:
if version:
new_msg = "[DEPRECATION WARNING]: %s.\nThis feature will be removed in version %s." % (msg, version)
else:
new_msg = "[DEPRECATION WARNING]: %s.\nThis feature will be removed in a future release." % (msg)
new_msg = new_msg + " Deprecation warnings can be disabled by setting deprecation_warnings=False in ansible.cfg.\n\n"
else:
raise AnsibleError("[DEPRECATED]: %s.\nPlease update your playbooks." % msg)
wrapped = textwrap.wrap(new_msg, self.columns, replace_whitespace=False, drop_whitespace=False)
new_msg = "\n".join(wrapped) + "\n"
if new_msg not in self._deprecations:
self.display(new_msg.strip(), color=C.COLOR_DEPRECATE, stderr=True)
self._deprecations[new_msg] = 1
def warning(self, msg, formatted=False):
if not formatted:
new_msg = "\n[WARNING]: %s" % msg
wrapped = textwrap.wrap(new_msg, self.columns)
new_msg = "\n".join(wrapped) + "\n"
else:
new_msg = "\n[WARNING]: \n%s" % msg
if new_msg not in self._warns:
self.display(new_msg, color=C.COLOR_WARN, stderr=True)
self._warns[new_msg] = 1
def system_warning(self, msg):
if C.SYSTEM_WARNINGS:
self.warning(msg)
def banner(self, msg, color=None):
'''
Prints a header-looking line with stars taking up to 80 columns
of width (3 columns, minimum)
'''
if self.b_cowsay:
try:
self.banner_cowsay(msg)
return
except OSError:
self.warning("somebody cleverly deleted cowsay or something during the PB run. heh.")
msg = msg.strip()
star_len = (79 - len(msg))
if star_len < 0:
star_len = 3
stars = u"*" * star_len
self.display(u"\n%s %s" % (msg, stars), color=color)
def banner_cowsay(self, msg, color=None):
if u": [" in msg:
msg = msg.replace(u"[", u"")
if msg.endswith(u"]"):
msg = msg[:-1]
runcmd = [self.b_cowsay, b"-W", b"60"]
if self.noncow:
thecow = self.noncow
if thecow == b'random':
thecow = random.choice(self.cows_available)
runcmd.append(b'-f')
runcmd.append(thecow)
runcmd.append(to_bytes(msg))
cmd = subprocess.Popen(runcmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
(out, err) = cmd.communicate()
self.display(u"%s\n" % to_text(out), color=color)
def error(self, msg, wrap_text=True):
if wrap_text:
new_msg = u"\n[ERROR]: %s" % msg
wrapped = textwrap.wrap(new_msg, self.columns)
new_msg = u"\n".join(wrapped) + u"\n"
else:
new_msg = u"ERROR! %s" % msg
if new_msg not in self._errors:
self.display(new_msg, color=C.COLOR_ERROR, stderr=True)
self._errors[new_msg] = 1
@staticmethod
def prompt(msg, private=False):
prompt_string = to_bytes(msg, encoding=Display._output_encoding())
if sys.version_info >= (3,):
# Convert back into text on python3. We do this double conversion
# to get rid of characters that are illegal in the user's locale
prompt_string = to_text(prompt_string)
if private:
return getpass.getpass(msg)
else:
return input(prompt_string)
def do_var_prompt(self, varname, private=True, prompt=None, encrypt=None, confirm=False, salt_size=None, salt=None, default=None):
result = None
if sys.__stdin__.isatty():
do_prompt = self.prompt
if prompt and default is not None:
msg = "%s [%s]: " % (prompt, default)
elif prompt:
msg = "%s: " % prompt
else:
msg = 'input for %s: ' % varname
if confirm:
while True:
result = do_prompt(msg, private)
second = do_prompt("confirm " + msg, private)
if result == second:
break
self.display("***** VALUES ENTERED DO NOT MATCH ****")
else:
result = do_prompt(msg, private)
else:
result = None
self.warning("Not prompting as we are not in interactive mode")
# if result is false and default is not None
if not result and default is not None:
result = default
if encrypt:
# Circular import because encrypt needs a display class
from ansible.utils.encrypt import do_encrypt
result = do_encrypt(result, encrypt, salt_size, salt)
# handle utf-8 chars
result = to_text(result, errors='surrogate_or_strict')
return result
@staticmethod
def _output_encoding(stderr=False):
encoding = locale.getpreferredencoding()
# https://bugs.python.org/issue6202
# Python2 hardcodes an obsolete value on Mac. Use MacOSX defaults
# instead.
if encoding in ('mac-roman',):
encoding = 'utf-8'
return encoding
def _set_column_width(self):
if os.isatty(0):
tty_size = unpack('HHHH', fcntl.ioctl(0, TIOCGWINSZ, pack('HHHH', 0, 0, 0, 0)))[1]
else:
tty_size = 0
self.columns = max(79, tty_size)
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