view sat/tools/common/ansi.py @ 3372:5d926c7b0d99

plugin app manager: first draft: /!\ new optional dependency: pyyaml this plugin manage the life cycle of external applications. Application handlers register to it. Data needed to launch an application as set in YAML files. Local data types are used to get values directly from SàT: - !sat_conf to retrieve a configuration value - !sat_generate_pwd to generate a password - !sat_param for parameters specified a launch Data can be exposed when an instance is launched, this can be used to specify the port (notably the one used for web), or a generated password.
author Goffi <goffi@goffi.org>
date Mon, 28 Sep 2020 21:10:30 +0200
parents 559a625a236b
children be6d91572633
line wrap: on
line source

#!/usr/bin/env python3


# SàT: a XMPP client
# Copyright (C) 2009-2020 Jérôme Poisson (goffi@goffi.org)

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.

# 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 Affero General Public License for more details.

# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

import sys


class ANSI(object):

    ## ANSI escape sequences ##
    RESET = "\033[0m"
    NORMAL_WEIGHT = "\033[22m"
    FG_BLACK, FG_RED, FG_GREEN, FG_YELLOW, FG_BLUE, FG_MAGENTA, FG_CYAN, FG_WHITE = (
        "\033[3%dm" % nb for nb in range(8)
    )
    BOLD = "\033[1m"
    BLINK = "\033[5m"
    BLINK_OFF = "\033[25m"

    @classmethod
    def color(cls, *args):
        """output text using ANSI codes

        this method simply merge arguments, and add RESET if is not the last arguments
        """
        # XXX: we expect to have at least one argument
        if args[-1] != cls.RESET:
            args = list(args)
            args.append(cls.RESET)
        return "".join(args)


try:
    tty = sys.stdout.isatty()
except (
    AttributeError,
    TypeError,
):  # FIXME: TypeError is here for Pyjamas, need to be removed
    tty = False
if not tty:
    #  we don't want ANSI escape codes if we are not outputing to a tty!
    for attr in dir(ANSI):
        if isinstance(getattr(ANSI, attr), str):
            setattr(ANSI, attr, "")
del tty