mirror of
https://github.com/golang/go
synced 2024-10-01 03:18:33 -06:00
b8f202ca5e
This adds support for calling links from the gopls command line, e.g. $ gopls links ~/tmp/foo/main.go Optional arguments are: -json, which emits range and uri in JSON With no arguments, a unique list of links are emitted. Updates golang/go#32875 Change-Id: I1e7cbf00a636c05ccf21bd544d9a5b7742d5d70b GitHub-Last-Rev: 7ed1e4612186bce4077d3c73f2407cf6def211d9 GitHub-Pull-Request: golang/tools#181 Reviewed-on: https://go-review.googlesource.com/c/tools/+/203297 Reviewed-by: Rebecca Stambler <rstambler@golang.org> Run-TryBot: Rebecca Stambler <rstambler@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
78 lines
1.8 KiB
Go
78 lines
1.8 KiB
Go
// 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"
|
||
"encoding/json"
|
||
"flag"
|
||
"fmt"
|
||
"os"
|
||
|
||
"golang.org/x/tools/internal/lsp/protocol"
|
||
"golang.org/x/tools/internal/span"
|
||
"golang.org/x/tools/internal/tool"
|
||
errors "golang.org/x/xerrors"
|
||
)
|
||
|
||
// links implements the links verb for gopls.
|
||
type links struct {
|
||
JSON bool `flag:"json" help:"emit document links in JSON format"`
|
||
|
||
app *Application
|
||
}
|
||
|
||
func (l *links) Name() string { return "links" }
|
||
func (l *links) Usage() string { return "<filename>" }
|
||
func (l *links) ShortHelp() string { return "list links in a file" }
|
||
func (l *links) DetailedHelp(f *flag.FlagSet) {
|
||
fmt.Fprintf(f.Output(), `
|
||
Example: list links contained within a file:
|
||
|
||
$ gopls links internal/lsp/cmd/check.go
|
||
|
||
gopls links flags are:
|
||
`)
|
||
f.PrintDefaults()
|
||
}
|
||
|
||
// Run finds all the links within a document
|
||
// - if -json is specified, outputs location range and uri
|
||
// - otherwise, prints the a list of unique links
|
||
func (l *links) Run(ctx context.Context, args ...string) error {
|
||
if len(args) != 1 {
|
||
return tool.CommandLineErrorf("links expects 1 argument")
|
||
}
|
||
conn, err := l.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
|
||
}
|
||
results, err := conn.DocumentLink(ctx, &protocol.DocumentLinkParams{
|
||
TextDocument: protocol.TextDocumentIdentifier{
|
||
URI: protocol.NewURI(uri),
|
||
},
|
||
})
|
||
if err != nil {
|
||
return errors.Errorf("%v: %v", from, err)
|
||
}
|
||
if l.JSON {
|
||
enc := json.NewEncoder(os.Stdout)
|
||
enc.SetIndent("", "\t")
|
||
return enc.Encode(results)
|
||
}
|
||
for _, v := range results {
|
||
fmt.Println(v.Target)
|
||
}
|
||
return nil
|
||
}
|