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- #!/usr/bin/env python
- # Licensed to Cloudera, Inc. under one
- # or more contributor license agreements. See the NOTICE file
- # distributed with this work for additional information
- # regarding copyright ownership. Cloudera, Inc. licenses this file
- # to you under the Apache License, Version 2.0 (the
- # "License"); you may not use this file except in compliance
- # with the License. You may obtain a copy of the License at
- #
- # http://www.apache.org/licenses/LICENSE-2.0
- #
- # Unless required by applicable law or agreed to in writing, software
- # distributed under the License is distributed on an "AS IS" BASIS,
- # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- # See the License for the specific language governing permissions and
- # limitations under the License.
- import glob
- import logging
- import os
- import sys
- from posixpath import curdir, sep, pardir, join
- if sys.version_info[0] > 2:
- from past.builtins import cmp
- # The root of the Hue installation
- INSTALL_ROOT = os.path.realpath(os.path.join(os.path.dirname(__file__), '..', '..'))
- # The apps location
- APPS_ROOT = os.path.join(INSTALL_ROOT, 'apps')
- # Directory holding app.reg
- HUE_APP_REG_DIR = os.environ.get("HUE_APP_REG_DIR", INSTALL_ROOT)
- # Directory holding hue.pth
- HUE_PTH_DIR = os.environ.get('HUE_PTH_DIR', None)
- # The Hue config directory
- HUE_CONF_DIR = os.path.join(INSTALL_ROOT, 'desktop', 'conf')
- # Virtual env
- VIRTUAL_ENV = os.path.join(INSTALL_ROOT, 'build', 'env')
- # The Python executable in virtualenv
- ENV_PYTHON = os.path.join(VIRTUAL_ENV, 'bin', 'python')
- def cmp_version(ver1, ver2):
- """Compare two version strings in the form of 1.2.34"""
- return cmp([int(v) for v in ver1.split('.')], [int(v) for v in ver2.split('.')])
- def _get_python_lib_dir():
- glob_path = os.path.join(VIRTUAL_ENV, 'lib', 'python*')
- res = glob.glob(glob_path)
- if len(res) == 0:
- raise SystemError("Cannot find a Python installation in %s. "
- "Did you do `make hue'?" % glob_path)
- elif len(res) > 1:
- raise SystemError("Found multiple Python installations in %s. "
- "Please `make clean' first." % glob_path)
- return res[0]
- def _get_python_site_packages_dir():
- return os.path.join(_get_python_lib_dir(), 'site-packages')
- def cmp(x, y):
- """
- Replacement for built-in function cmp that was removed in Python 3
- Compare the two objects x and y and return an integer according to
- the outcome. The return value is negative if x < y, zero if x == y
- and strictly positive if x > y.
- """
- return (x > y) - (x < y)
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