1 files changed, 64 insertions, 0 deletions
diff --git a/go/tools/builders/info.go b/go/tools/builders/info.go
new file mode 100644
index 00000000..f7f1fd03
--- /dev/null
+++ b/go/tools/builders/info.go
@@ -0,0 +1,64 @@
+// Copyright 2017 The Bazel 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.
+
+// info prints debugging information about the go environment.
+// It is used to help examine the execution environment of rules_go
+package main
+
+import (
+	"flag"
+	"fmt"
+	"log"
+	"os"
+)
+
+func run(args []string) error {
+	args, _, err := expandParamsFiles(args)
+	if err != nil {
+		return err
+	}
+	filename := ""
+	flags := flag.NewFlagSet("info", flag.ExitOnError)
+	flags.StringVar(&filename, "out", filename, "The file to write the report to")
+	goenv := envFlags(flags)
+	if err := flags.Parse(args); err != nil {
+		return err
+	}
+	if err := goenv.checkFlags(); err != nil {
+		return err
+	}
+	os.Setenv("GO111MODULE", "off")
+	f := os.Stderr
+	if filename != "" {
+		var err error
+		f, err = os.Create(filename)
+		if err != nil {
+			return fmt.Errorf("Could not create report file: %v", err)
+		}
+		defer f.Close()
+	}
+	if err := goenv.runCommandToFile(f, os.Stderr, goenv.goCmd("version")); err != nil {
+		return err
+	}
+	if err := goenv.runCommandToFile(f, os.Stderr, goenv.goCmd("env")); err != nil {
+		return err
+	}
+	return nil
+}
+
+func main() {
+	if err := run(os.Args[1:]); err != nil {
+		log.Fatal(err)
+	}
+}