gstreamer/common.py

import argparse
import os
import shutil
import subprocess


ROOTDIR = os.path.abspath(os.path.dirname(__file__))


class Colors:
    HEADER = '\033[95m'
    OKBLUE = '\033[94m'
    OKGREEN = '\033[92m'
    WARNING = '\033[93m'
    FAIL = '\033[91m'
    ENDC = '\033[0m'

    force_disable = False

    @classmethod
    def disable(cls):
        cls.HEADER = ''
        cls.OKBLUE = ''
        cls.OKGREEN = ''
        cls.WARNING = ''
        cls.FAIL = ''
        cls.ENDC = ''

    @classmethod
    def enable(cls):
        if cls.force_disable:
            return

        cls.HEADER = '\033[95m'
        cls.OKBLUE = '\033[94m'
        cls.OKGREEN = '\033[92m'
        cls.WARNING = '\033[93m'
        cls.FAIL = '\033[91m'
        cls.ENDC = '\033[0m'



def git(*args, repository_path='.'):
    return subprocess.check_output(["git"] + list(args), cwd=repository_path,
                                   stderr=subprocess.STDOUT).decode()

def accept_command(commands):
    """Search @commands and returns the first found absolute path."""
    for command in commands:
        command = shutil.which(command)
        if command:
            return command

    return None

def get_meson():
    meson = os.path.join(ROOTDIR, 'meson', 'meson.py')
    if os.path.exists(meson):
        mesonconf = os.path.join(ROOTDIR, 'meson', 'mesonconf.py')
        mesonintrospect = os.path.join(ROOTDIR, 'meson', 'mesonintrospect.py')
        return meson, mesonconf, mesonintrospect

    mesonintrospect = os.environ.get('MESONINTROSPECT', None)
    if mesonintrospect and os.path.exists(mesonintrospect):
      mesondir = os.path.dirname(mesonintrospect)
      if mesonintrospect.endswith('.py'):
        meson = os.path.join(mesondir, 'meson.py')
        mesonconf = os.path.join(mesondir, 'mesonconf.py')
      else:
        meson = os.path.join(mesondir, 'meson')
        mesonconf = os.path.join(mesondir, 'mesonconf')
    else:
      meson = accept_command(["meson.py", "meson"])
      mesonconf = accept_command(["mesonconf.py", "mesonconf"])
      mesonintrospect = accept_command(["mesonintrospect.py", "mesonintrospect"])

    return meson, mesonconf, mesonintrospect