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go/internal/lsp/workspace.go
Rebecca Stambler f01a4bec33 internal/lsp: support opening single files
This change permits starting gopls without a root URI or any workspace
folders. If no view is found for an opened file, we try to create a new
view based on the module root of that file. In GOPATH mode, we just
use the directory containing the file.

I wrote a regtest for this by adding a new configuration that gets
propagated to the sandbox. I'm not sure if this is the best way to do
that, so I'll let Rob advise.

Fixes golang/go#34160

Change-Id: I3deca3ac1b86b69eba416891a1c28fd35658a2ed
Reviewed-on: https://go-review.googlesource.com/c/tools/+/240099
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-07-01 22:10:12 +00:00

59 lines
1.6 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 lsp
import (
"context"
"golang.org/x/tools/internal/lsp/protocol"
"golang.org/x/tools/internal/lsp/source"
"golang.org/x/tools/internal/span"
errors "golang.org/x/xerrors"
)
func (s *Server) didChangeWorkspaceFolders(ctx context.Context, params *protocol.DidChangeWorkspaceFoldersParams) error {
event := params.Event
for _, folder := range event.Removed {
view := s.session.View(folder.Name)
if view != nil {
view.Shutdown(ctx)
} else {
return errors.Errorf("view %s for %v not found", folder.Name, folder.URI)
}
}
return s.addFolders(ctx, event.Added)
}
func (s *Server) addView(ctx context.Context, name string, uri span.URI) (source.View, source.Snapshot, error) {
s.stateMu.Lock()
state := s.state
s.stateMu.Unlock()
if state < serverInitialized {
return nil, nil, errors.Errorf("addView called before server initialized")
}
options := s.session.Options()
if err := s.fetchConfig(ctx, name, uri, &options); err != nil {
return nil, nil, err
}
return s.session.NewView(ctx, name, uri, options)
}
func (s *Server) didChangeConfiguration(ctx context.Context, changed interface{}) error {
// go through all the views getting the config
for _, view := range s.session.Views() {
options := s.session.Options()
if err := s.fetchConfig(ctx, view.Name(), view.Folder(), &options); err != nil {
return err
}
view, err := view.SetOptions(ctx, options)
if err != nil {
return err
}
go s.diagnoseDetached(view.Snapshot())
}
return nil
}