blob: bbc9444da37d70582a7bf0e311eb9e789a4151fa [file] [log] [blame]
// Copyright 2024 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// The program open2opaque migrates Go code using Go Protobuf from the Open API
// to the Opaque API.
//
// See https://go.dev/blog/protobuf-opaque for context.
package main
import (
"context"
"fmt"
"io"
_ "net/http/pprof"
"os"
"path"
"flag"
"github.com/google/subcommands"
"google.golang.org/open2opaque/internal/o2o/rewrite"
"google.golang.org/open2opaque/internal/o2o/setapi"
"google.golang.org/open2opaque/internal/o2o/version"
)
const groupOther = "working with this tool"
func registerVersion(commander *subcommands.Commander) {
commander.Register(version.Command(), groupOther)
}
func main() {
ctx := context.Background()
commander := subcommands.NewCommander(flag.CommandLine, path.Base(os.Args[0]))
// Prepend general documentation before the regular help output.
defaultExplain := commander.Explain
commander.Explain = func(w io.Writer) {
fmt.Fprintf(w, "The open2opaque tool migrates Go packages from the open protobuf API to the opaque protobuf API.\n\n")
fmt.Fprintf(w, "See http://godoc/3/third_party/golang/google_golang_org/open2opaque/v/v0/open2opaque for documentation.\n\n")
defaultExplain(w)
}
// Comes last in the help output (alphabetically)
commander.Register(commander.HelpCommand(), groupOther)
commander.Register(commander.FlagsCommand(), groupOther)
registerVersion(commander)
// Comes first in the help output (alphabetically)
const groupRewrite = "automatically rewriting Go code"
commander.Register(rewrite.Command(), groupRewrite)
const groupFlag = "managing go_api_flag"
commander.Register(setapi.Command(), groupFlag)
flag.Usage = func() {
commander.HelpCommand().Execute(ctx, flag.CommandLine)
}
flag.Parse()
code := int(commander.Execute(ctx))
logFlush()
os.Exit(code)
}