1// Copyright 2020 Google Inc. All rights reserved. 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS, 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15package soongconfig 16 17import "strings" 18 19type SoongConfig interface { 20 // Bool interprets the variable named `name` as a boolean, returning true if, after 21 // lowercasing, it matches one of "1", "y", "yes", "on", or "true". Unset, or any other 22 // value will return false. 23 Bool(name string) bool 24 25 // String returns the string value of `name`. If the variable was not set, it will 26 // return the empty string. 27 String(name string) string 28 29 // IsSet returns whether the variable `name` was set by Make. 30 IsSet(name string) bool 31} 32 33func Config(vars map[string]string) SoongConfig { 34 return soongConfig(vars) 35} 36 37type soongConfig map[string]string 38 39func (c soongConfig) Bool(name string) bool { 40 v := strings.ToLower(c[name]) 41 return v == "1" || v == "y" || v == "yes" || v == "on" || v == "true" 42} 43 44func (c soongConfig) String(name string) string { 45 return c[name] 46} 47 48func (c soongConfig) IsSet(name string) bool { 49 _, ok := c[name] 50 return ok 51} 52