mirror of
https://github.com/golang/go
synced 2024-11-08 08:26:10 -07:00
66 lines
1.8 KiB
Go
66 lines
1.8 KiB
Go
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// +build from_src_run
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// Copyright 2013 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// The run program is invoked via "go run" from src/run.bash or
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// src/run.bat conditionally builds and runs the cmd/api tool.
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//
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// TODO(bradfitz): the "conditional" condition is always true.
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// We should only do this if the user has the hg codereview extension
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// enabled and verifies that the go.tools subrepo is checked out with
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// a suitably recently version. In prep for the cmd/api rewrite.
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package main
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import (
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"fmt"
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"log"
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"os"
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"os/exec"
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"path/filepath"
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"strconv"
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)
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var goroot string
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func main() {
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log.SetFlags(0)
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goroot = os.Getenv("GOROOT") // should be set by run.{bash,bat}
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if goroot == "" {
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log.Fatal("No $GOROOT set.")
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}
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isGoDeveloper := exec.Command("hg", "pq").Run() == nil
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if !isGoDeveloper && !forceAPICheck() {
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fmt.Println("Skipping cmd/api checks; hg codereview extension not available and GO_FORCE_API_CHECK not set")
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return
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}
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out, err := exec.Command("go", "install", "--tags=api_tool", "cmd/api").CombinedOutput()
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if err != nil {
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log.Fatalf("Error installing cmd/api: %v\n%s", err, out)
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}
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out, err = exec.Command("go", "tool", "api",
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"-c", file("go1", "go1.1"),
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"-next", file("next"),
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"-except", file("except")).CombinedOutput()
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if err != nil {
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log.Fatalf("Error running API checker: %v\n%s", err, out)
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}
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}
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// file expands s to $GOROOT/api/s.txt.
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// If there are more than 1, they're comma-separated.
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func file(s ...string) string {
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if len(s) > 1 {
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return file(s[0]) + "," + file(s[1:]...)
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}
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return filepath.Join(goroot, "api", s[0]+".txt")
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}
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// GO_FORCE_API_CHECK is set by builders.
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func forceAPICheck() bool {
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v, _ := strconv.ParseBool(os.Getenv("GO_FORCE_API_CHECK"))
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return v
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}
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