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// Copyright 2014 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 gorename command performs precise type-safe renaming of
// identifiers in Go source code.
//
// Run with -help for usage information, or view the Usage constant in
// package golang.org/x/tools/refactor/rename, which contains most of
// the implementation.
package main // import "golang.org/x/tools/cmd/gorename"
import (
"flag"
"fmt"
"go/build"
"log"
"os"
"golang.org/x/tools/go/buildutil"
"golang.org/x/tools/refactor/rename"
)
var (
offsetFlag = flag.String("offset", "", "file and byte offset of identifier to be renamed, e.g. 'file.go:#123'. For use by editors.")
fromFlag = flag.String("from", "", "identifier to be renamed; see -help for formats")
toFlag = flag.String("to", "", "new name for identifier")
helpFlag = flag.Bool("help", false, "show usage message")
)
func init() {
flag.Var((*buildutil.TagsFlag)(&build.Default.BuildTags), "tags", buildutil.TagsFlagDoc)
flag.BoolVar(&rename.Force, "force", false, "proceed, even if conflicts were reported")
flag.BoolVar(&rename.Verbose, "v", false, "print verbose information")
flag.BoolVar(&rename.Diff, "d", false, "display diffs instead of rewriting files")
flag.StringVar(&rename.DiffCmd, "diffcmd", "diff", "diff command invoked when using -d")
}
func main() {
log.SetPrefix("gorename: ")
log.SetFlags(0)
flag.Parse()
if len(flag.Args()) > 0 {
log.Fatal("surplus arguments")
}
if *helpFlag || (*offsetFlag == "" && *fromFlag == "" && *toFlag == "") {
fmt.Print(rename.Usage)
return
}
if err := rename.Main(&build.Default, *offsetFlag, *fromFlag, *toFlag); err != nil {
if err != rename.ConflictError {
log.Fatal(err)
}
os.Exit(1)
}
}
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