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#
# Copyright 2017 The Cobalt Authors. All Rights Reserved.
#
# Licensed 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.
#
"""Functionality to enumerate and represent starboard ports."""
import os
import _env
from starboard.tools import environment
# The name->platform path mapping.
_PATH_MAP = $platforms_map
_PATH_MAP = {k:os.path.normpath(v) for k,v in _PATH_MAP.iteritems()}
# Cache of the name->PlatformInfo mapping.
_INFO_MAP = None
def _ConstructInfoMap():
"""Constructs mapping of platform names to PlatformInfo objects.
Returns:
A Mapping of name->PlatformInfo.
"""
result = {}
for name, path in _PATH_MAP.iteritems():
result[name] = PlatformInfo(name, path)
return result
def _GetInfoMap():
"""Gets mapping of platform names to PlatformInfo objects."""
global _INFO_MAP
if not _INFO_MAP:
_INFO_MAP = _ConstructInfoMap()
return _INFO_MAP
# Cache of the sorted list of all platform names.
_ALL = None
def GetAll():
"""Gets a sorted list of all valid Starboard platform names."""
global _ALL
if not _ALL:
_ALL = sorted(_GetInfoMap().keys())
return _ALL
def Get(platform_name):
"""Gets the PlatformInfo for the given platform name, or None."""
return _GetInfoMap().get(platform_name)
def GetAllInfos():
"""Gets a sorted sequence of PlatformInfo objects for all valid platforms."""
return (Get(p) for p in GetAll())
def IsValid(platform_name):
"""Determines whether the given platform name is valid."""
return platform_name in _GetInfoMap()
class PlatformInfo(object):
"""Information about a specific Starboard platform."""
def __init__(self, name, path):
self.name = name
self.path = path