432bd598ae
Each variable can specify a conditions_default for properties to be used when the variable is not set, not set to a true value (for bools), or is set to a value that is not present in the module (for strings). Test: m nothing Test: go test soong tests Change-Id: I76ec026da2369b407f0f530f77760f530e7958fc
63 lines
1.8 KiB
Go
63 lines
1.8 KiB
Go
// Copyright 2020 Google Inc. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package soongconfig
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import (
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"fmt"
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"strings"
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)
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type SoongConfig interface {
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// Bool interprets the variable named `name` as a boolean, returning true if, after
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// lowercasing, it matches one of "1", "y", "yes", "on", or "true". Unset, or any other
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// value will return false.
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Bool(name string) bool
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// String returns the string value of `name`. If the variable was not set, it will
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// return the empty string.
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String(name string) string
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// IsSet returns whether the variable `name` was set by Make.
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IsSet(name string) bool
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}
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func Config(vars map[string]string) SoongConfig {
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configVars := make(map[string]string)
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if len(vars) > 0 {
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for k, v := range vars {
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configVars[k] = v
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}
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if _, exists := configVars[conditionsDefault]; exists {
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panic(fmt.Sprintf("%q is a reserved soong config variable name", conditionsDefault))
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}
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}
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return soongConfig(configVars)
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}
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type soongConfig map[string]string
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func (c soongConfig) Bool(name string) bool {
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v := strings.ToLower(c[name])
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return v == "1" || v == "y" || v == "yes" || v == "on" || v == "true"
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}
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func (c soongConfig) String(name string) string {
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return c[name]
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}
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func (c soongConfig) IsSet(name string) bool {
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_, ok := c[name]
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return ok
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}
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