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#!/usr/bin/env python
#-*- coding:utf-8 -*-
"""Mirrorselect 2.x
Tool for selecting Gentoo source and rsync mirrors.
Copyright 2005-2012 Gentoo Foundation
Copyright (C) 2005 Colin Kingsley <tercel@gentoo.org>
Copyright (C) 2008 Zac Medico <zmedico@gentoo.org>
Copyright (C) 2009 Sebastian Pipping <sebastian@pipping.org>
Copyright (C) 2009 Christian Ruppert <idl0r@gentoo.org>
Copyright (C) 2012 Brian Dolbec <dolsen@gentoo.org>
Distributed under the terms of the GNU General Public License v2
This program 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, version 2 of the License.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
"""
import sys
import re
import codecs
import locale
from optparse import IndentedHelpFormatter
if sys.hexversion >= 0x3000000:
_unicode = str
else:
_unicode = unicode
def encoder(text, _encoding_):
return codecs.encode(text, _encoding_, 'replace')
def decode_selection(selection):
'''utility function to decode a list of strings
accoring to the filesystem encoding
'''
# fix None passed in, return an empty list
selection = selection or []
enc = sys.getfilesystemencoding()
if enc is not None:
return [encoder(i, enc) for i in selection]
return selection
def get_encoding(output):
if hasattr(output, 'encoding') \
and output.encoding != None:
return output.encoding
else:
encoding = locale.getpreferredencoding()
# Make sure that python knows the encoding. Bug 350156
try:
# We don't care about what is returned, we just want to
# verify that we can find a codec.
codecs.lookup(encoding)
except LookupError:
# Python does not know the encoding, so use utf-8.
encoding = 'utf_8'
return encoding
class Output(object):
"""Handles text output. Only prints messages with level <= verbosity.
Therefore, verbosity=2 is everything (debug), and verbosity=0 is urgent
messages only (quiet)."""
def __init__(self, verbosity=1, out=sys.stderr):
esc_seq = "\x1b["
codes = {}
codes["reset"] = esc_seq + "39;49;00m"
codes["bold"] = esc_seq + "01m"
codes["blue"] = esc_seq + "34;01m"
codes["green"] = esc_seq + "32;01m"
codes["yellow"] = esc_seq + "33;01m"
codes["red"] = esc_seq + "31;01m"
self.codes = codes
del codes
self.verbosity = verbosity
self.file = out
def red(self, text):
return self.codes["red"]+text+self.codes["reset"]
def green(self, text):
return self.codes["green"]+text+self.codes["reset"]
def white(self, text):
return self.codes["bold"]+text+self.codes["reset"]
def blue(self, text):
return self.codes["blue"]+text+self.codes["reset"]
def yellow(self, text):
return self.codes["yellow"]+text+self.codes["reset"]
def print_info(self, message, level=1):
"""Prints an info message with a green star, like einfo."""
if level <= self.verbosity:
self.file.write('\r' + self.green('* ') + message)
self.file.flush()
def print_warn(self, message, level=1):
"""Prints a warning."""
if level <= self.verbosity:
self.file.write(self.yellow('Warning: ') + message)
self.file.flush()
def print_err(self, message, level=0):
"""prints an error message with a big red ERROR."""
if level <= self.verbosity:
self.file.write(self.red('\nERROR: ') + message + '\n')
self.file.flush()
sys.exit(1)
def write(self, message, level=1):
"""A wrapper arounf stderr.write, to enforce verbosity settings."""
if level <= self.verbosity:
self.file.write(message)
self.file.flush()
class ColoredFormatter(IndentedHelpFormatter):
"""HelpFormatter with colorful output.
Extends format_option.
Overrides format_heading.
"""
def __init__(self, output):
IndentedHelpFormatter.__init__(self)
self.output = output
def format_heading(self, heading):
"""Return a colorful heading."""
return "%*s%s:\n" % (self.current_indent, "", self.output.white(heading))
def format_option(self, option):
"""Return colorful formatted help for an option."""
option = IndentedHelpFormatter.format_option(self, option)
# long options with args
option = re.sub(
r"--([a-zA-Z]*)=([a-zA-Z]*)",
lambda m: "-%s %s" % (self.output.green(m.group(1)),
self.output.blue(m.group(2))),
option)
# short options with args
option = re.sub(
r"-([a-zA-Z]) ?([0-9A-Z]+)",
lambda m: " -" + self.output.green(m.group(1)) + ' ' + \
self.output.blue(m.group(2)),
option)
# options without args
option = re.sub(
r"-([a-zA-Z\d]+)", lambda m: "-" + self.output.green(m.group(1)),
option)
return option
def format_description(self, description):
"""Do not wrap."""
return description + '\n'
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