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https://github.com/golang/go
synced 2024-10-01 16:18:32 -06:00
5e3480f0e0
Now when a file is deleted we force the file's packages to refresh go/packages metadata, and kick off diagnostics. I made a couple other changes to watched file handling: - Kick off diagnostics in a goroutine to match how DidChange works. This will allow us to work through big sets of file changes faster, and will save duplicated work once type checking can be canceled. - Don't assume a watched file is only part of one view. Two interesting cases we don't handle yet: - If the deleted file was the only file in the package, we don't currently update diagnostics for dependent packages. This requires rejiggering how diagnostics are invoked a bit. - If the deleted file is still open in the editor and then later closed, we don't trigger metadata/diagnostics refresh on DidClose. Updates golang/go#31553 Change-Id: I65768614c24d9800ffea149ccdbdbd3cb7b2f3d8 Reviewed-on: https://go-review.googlesource.com/c/tools/+/193121 Run-TryBot: Rebecca Stambler <rstambler@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Cottrell <iancottrell@google.com>
101 lines
2.7 KiB
Go
101 lines
2.7 KiB
Go
// Copyright 2019 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package lsp
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import (
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"context"
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"golang.org/x/tools/internal/lsp/protocol"
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"golang.org/x/tools/internal/lsp/source"
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"golang.org/x/tools/internal/lsp/telemetry"
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"golang.org/x/tools/internal/span"
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"golang.org/x/tools/internal/telemetry/log"
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"golang.org/x/tools/internal/telemetry/trace"
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)
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func (s *Server) didChangeWatchedFiles(ctx context.Context, params *protocol.DidChangeWatchedFilesParams) error {
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options := s.session.Options()
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if !options.WatchFileChanges {
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return nil
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}
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for _, change := range params.Changes {
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uri := span.NewURI(change.URI)
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ctx := telemetry.File.With(ctx, uri)
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for _, view := range s.session.Views() {
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gof, _ := view.FindFile(ctx, uri).(source.GoFile)
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// If we have never seen this file before, there is nothing to do.
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if gof == nil {
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continue
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}
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// If client has this file open, don't do anything. The client's contents
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// must remain the source of truth.
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if s.session.IsOpen(uri) {
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break
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}
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switch change.Type {
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case protocol.Changed:
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log.Print(ctx, "watched file changed", telemetry.File)
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s.session.DidChangeOutOfBand(ctx, gof, change.Type)
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// Refresh diagnostics to reflect updated file contents.
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go func(view source.View) {
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ctx := view.BackgroundContext()
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ctx, done := trace.StartSpan(ctx, "lsp:background-worker")
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defer done()
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s.Diagnostics(ctx, view, uri)
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}(view)
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case protocol.Created:
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log.Print(ctx, "watched file created", telemetry.File)
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case protocol.Deleted:
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log.Print(ctx, "watched file deleted", telemetry.File)
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pkg, err := gof.GetPackage(ctx)
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if err != nil {
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log.Error(ctx, "didChangeWatchedFiles: GetPackage", err, telemetry.File)
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continue
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}
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// Find a different file in the same package we can use to
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// trigger diagnostics.
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var otherFile source.GoFile
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for _, pgh := range pkg.GetHandles() {
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ident := pgh.File().Identity()
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if ident.URI == gof.URI() {
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continue
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}
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otherFile, _ = view.FindFile(ctx, ident.URI).(source.GoFile)
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if otherFile != nil {
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break
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}
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}
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s.session.DidChangeOutOfBand(ctx, gof, change.Type)
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if otherFile != nil {
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// Refresh diagnostics to reflect updated file contents.
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go func(view source.View) {
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ctx := view.BackgroundContext()
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ctx, done := trace.StartSpan(ctx, "lsp:background-worker")
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defer done()
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s.Diagnostics(ctx, view, otherFile.URI())
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}(view)
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} else {
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// TODO: Handle case when there is no other file (i.e. deleted
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// file was the only file in the package).
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}
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}
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}
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}
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return nil
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}
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