1// Copyright 2017 The Bazel Authors. 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 15// info prints debugging information about the go environment. 16// It is used to help examine the execution environment of rules_go 17package main 18 19import ( 20 "flag" 21 "fmt" 22 "log" 23 "os" 24) 25 26func run(args []string) error { 27 args, _, err := expandParamsFiles(args) 28 if err != nil { 29 return err 30 } 31 filename := "" 32 flags := flag.NewFlagSet("info", flag.ExitOnError) 33 flags.StringVar(&filename, "out", filename, "The file to write the report to") 34 goenv := envFlags(flags) 35 if err := flags.Parse(args); err != nil { 36 return err 37 } 38 if err := goenv.checkFlags(); err != nil { 39 return err 40 } 41 os.Setenv("GO111MODULE", "off") 42 f := os.Stderr 43 if filename != "" { 44 var err error 45 f, err = os.Create(filename) 46 if err != nil { 47 return fmt.Errorf("Could not create report file: %v", err) 48 } 49 defer f.Close() 50 } 51 if err := goenv.runCommandToFile(f, os.Stderr, goenv.goCmd("version")); err != nil { 52 return err 53 } 54 if err := goenv.runCommandToFile(f, os.Stderr, goenv.goCmd("env")); err != nil { 55 return err 56 } 57 return nil 58} 59 60func main() { 61 if err := run(os.Args[1:]); err != nil { 62 log.Fatal(err) 63 } 64} 65