+++ /dev/null
-// Copyright 2019 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.
-
-package cmd
-
-import (
- "context"
- "flag"
- "fmt"
- "io/ioutil"
-
- "golang.org/x/tools/internal/lsp/diff"
- "golang.org/x/tools/internal/lsp/protocol"
- "golang.org/x/tools/internal/lsp/source"
- "golang.org/x/tools/internal/span"
- "golang.org/x/tools/internal/tool"
- errors "golang.org/x/xerrors"
-)
-
-// imports implements the import verb for gopls.
-type imports struct {
- Diff bool `flag:"d" help:"display diffs instead of rewriting files"`
- Write bool `flag:"w" help:"write result to (source) file instead of stdout"`
-
- app *Application
-}
-
-func (t *imports) Name() string { return "imports" }
-func (t *imports) Usage() string { return "<filename>" }
-func (t *imports) ShortHelp() string { return "updates import statements" }
-func (t *imports) DetailedHelp(f *flag.FlagSet) {
- fmt.Fprintf(f.Output(), `
-Example: update imports statements in a file:
-
- $ gopls imports -w internal/lsp/cmd/check.go
-
-gopls imports flags are:
-`)
- f.PrintDefaults()
-}
-
-// Run performs diagnostic checks on the file specified and either;
-// - if -w is specified, updates the file in place;
-// - if -d is specified, prints out unified diffs of the changes; or
-// - otherwise, prints the new versions to stdout.
-func (t *imports) Run(ctx context.Context, args ...string) error {
- if len(args) != 1 {
- return tool.CommandLineErrorf("imports expects 1 argument")
- }
- conn, err := t.app.connect(ctx)
- if err != nil {
- return err
- }
- defer conn.terminate(ctx)
-
- from := span.Parse(args[0])
- uri := from.URI()
- file := conn.AddFile(ctx, uri)
- if file.err != nil {
- return file.err
- }
- actions, err := conn.CodeAction(ctx, &protocol.CodeActionParams{
- TextDocument: protocol.TextDocumentIdentifier{
- URI: protocol.URIFromSpanURI(uri),
- },
- })
- if err != nil {
- return errors.Errorf("%v: %v", from, err)
- }
- var edits []protocol.TextEdit
- for _, a := range actions {
- if a.Title != "Organize Imports" {
- continue
- }
- for _, c := range a.Edit.DocumentChanges {
- if fileURI(c.TextDocument.URI) == uri {
- edits = append(edits, c.Edits...)
- }
- }
- }
- sedits, err := source.FromProtocolEdits(file.mapper, edits)
- if err != nil {
- return errors.Errorf("%v: %v", edits, err)
- }
- newContent := diff.ApplyEdits(string(file.mapper.Content), sedits)
-
- filename := file.uri.Filename()
- switch {
- case t.Write:
- if len(edits) > 0 {
- ioutil.WriteFile(filename, []byte(newContent), 0644)
- }
- case t.Diff:
- diffs := diff.ToUnified(filename+".orig", filename, string(file.mapper.Content), sedits)
- fmt.Print(diffs)
- default:
- fmt.Print(string(newContent))
- }
- return nil
-}