1// Copyright 2023 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5package main
6
7import (
8	"flag"
9	"fmt"
10	"io"
11	"log"
12	"os"
13
14	"internal/trace"
15	"internal/trace/testtrace"
16)
17
18func init() {
19	flag.Usage = func() {
20		fmt.Fprintf(flag.CommandLine.Output(), "Usage: %s\n", os.Args[0])
21		fmt.Fprintf(flag.CommandLine.Output(), "\n")
22		fmt.Fprintf(flag.CommandLine.Output(), "Accepts a trace at stdin and validates it.\n")
23		flag.PrintDefaults()
24	}
25	log.SetFlags(0)
26}
27
28var logEvents = flag.Bool("log-events", false, "whether to log events")
29
30func main() {
31	flag.Parse()
32
33	r, err := trace.NewReader(os.Stdin)
34	if err != nil {
35		log.Fatal(err)
36	}
37	v := testtrace.NewValidator()
38	for {
39		ev, err := r.ReadEvent()
40		if err == io.EOF {
41			break
42		}
43		if err != nil {
44			log.Fatal(err)
45		}
46		if *logEvents {
47			log.Println(ev.String())
48		}
49		if err := v.Event(ev); err != nil {
50			log.Fatal(err)
51		}
52	}
53}
54