58 lines
1.5 KiB
Go
58 lines
1.5 KiB
Go
// Copyright 2015 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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// soong_env determines if the given soong environment file (usually ".soong.environment") is stale
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// by comparing its contents to the current corresponding environment variable values.
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// It fails if the file cannot be opened or corrupted, or its contents differ from the current
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// values.
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package main
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import (
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"flag"
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"fmt"
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"os"
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"android/soong/env"
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)
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func usage() {
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fmt.Fprintf(os.Stderr, "usage: soong_env env_file\n")
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fmt.Fprintf(os.Stderr, "exits with success if the environment varibles in env_file match\n")
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fmt.Fprintf(os.Stderr, "the current environment\n")
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flag.PrintDefaults()
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os.Exit(2)
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}
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// This is a simple executable packaging, and the real work happens in env.StaleEnvFile.
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func main() {
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flag.Parse()
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if flag.NArg() != 1 {
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usage()
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}
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stale, err := env.StaleEnvFile(flag.Arg(0))
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if err != nil {
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fmt.Fprintf(os.Stderr, "error: %s\n", err.Error())
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os.Exit(1)
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}
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if stale {
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os.Exit(1)
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}
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os.Exit(0)
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}
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