Synnefo » snf-image-creator

# Copyright 2012 GRNET S.A. All rights reserved.

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import pbs

from clint.textui import puts, puts_err, colored, progress

def get_command(command):

    def find_sbin_command(command, exception):

        search_paths = ['/usr/local/sbin', '/usr/sbin', '/sbin']

        for fullpath in map(lambda x: "%s/%s" % (x, command), search_paths):

            if os.path.exists(fullpath) and os.access(fullpath, os.X_OK):

                return pbs.Command(fullpath)

        raise exception

    try:

        return pbs.__getattr__(command)

    except pbs.CommadNotFount as e:

        return find_sbin_command(command, e)

def error(msg, new_line=True):

    puts_err(colored.red("Error: %s\n" % msg), new_line)

def warn(msg, new_line=True):

    puts_err(colored.yellow("Warning: %s" % msg), new_line)

def success(msg, new_line=True):

    puts(colored.green(msg), new_line)

def progress_generator(label='', n=100):

    position = 0

    for i in progress.bar(range(n), label):

        if i < position:

            continue

        position = yield

    yield  # suppress the StopIteration exception

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