+++ /dev/null
-// Copyright 2018 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"
- "log"
- "os"
- "strings"
- "time"
-
- "golang.org/x/tools/internal/fakenet"
- "golang.org/x/tools/internal/jsonrpc2"
- "golang.org/x/tools/internal/lsp/cache"
- "golang.org/x/tools/internal/lsp/debug"
- "golang.org/x/tools/internal/lsp/lsprpc"
- "golang.org/x/tools/internal/lsp/protocol"
- "golang.org/x/tools/internal/tool"
- errors "golang.org/x/xerrors"
-)
-
-// Serve is a struct that exposes the configurable parts of the LSP server as
-// flags, in the right form for tool.Main to consume.
-type Serve struct {
- Logfile string `flag:"logfile" help:"filename to log to. if value is \"auto\", then logging to a default output file is enabled"`
- Mode string `flag:"mode" help:"no effect"`
- Port int `flag:"port" help:"port on which to run gopls for debugging purposes"`
- Address string `flag:"listen" help:"address on which to listen for remote connections. If prefixed by 'unix;', the subsequent address is assumed to be a unix domain socket. Otherwise, TCP is used."`
- IdleTimeout time.Duration `flag:"listen.timeout" help:"when used with -listen, shut down the server when there are no connected clients for this duration"`
- Trace bool `flag:"rpc.trace" help:"print the full rpc trace in lsp inspector format"`
- Debug string `flag:"debug" help:"serve debug information on the supplied address"`
-
- RemoteListenTimeout time.Duration `flag:"remote.listen.timeout" help:"when used with -remote=auto, the -listen.timeout value used to start the daemon"`
- RemoteDebug string `flag:"remote.debug" help:"when used with -remote=auto, the -debug value used to start the daemon"`
- RemoteLogfile string `flag:"remote.logfile" help:"when used with -remote=auto, the -logfile value used to start the daemon"`
-
- app *Application
-}
-
-func (s *Serve) Name() string { return "serve" }
-func (s *Serve) Usage() string { return "" }
-func (s *Serve) ShortHelp() string {
- return "run a server for Go code using the Language Server Protocol"
-}
-func (s *Serve) DetailedHelp(f *flag.FlagSet) {
- fmt.Fprint(f.Output(), `
-The server communicates using JSONRPC2 on stdin and stdout, and is intended to be run directly as
-a child of an editor process.
-
-gopls server flags are:
-`)
- f.PrintDefaults()
-}
-
-// Run configures a server based on the flags, and then runs it.
-// It blocks until the server shuts down.
-func (s *Serve) Run(ctx context.Context, args ...string) error {
- if len(args) > 0 {
- return tool.CommandLineErrorf("server does not take arguments, got %v", args)
- }
-
- di := debug.GetInstance(ctx)
- isDaemon := s.Address != "" || s.Port != 0
- if di != nil {
- closeLog, err := di.SetLogFile(s.Logfile, isDaemon)
- if err != nil {
- return err
- }
- defer closeLog()
- di.ServerAddress = s.Address
- di.DebugAddress = s.Debug
- di.Serve(ctx)
- di.MonitorMemory(ctx)
- }
- var ss jsonrpc2.StreamServer
- if s.app.Remote != "" {
- network, addr := parseAddr(s.app.Remote)
- ss = lsprpc.NewForwarder(network, addr,
- lsprpc.RemoteDebugAddress(s.RemoteDebug),
- lsprpc.RemoteListenTimeout(s.RemoteListenTimeout),
- lsprpc.RemoteLogfile(s.RemoteLogfile),
- )
- } else {
- ss = lsprpc.NewStreamServer(cache.New(ctx, s.app.options), isDaemon)
- }
-
- var network, addr string
- if s.Address != "" {
- network, addr = parseAddr(s.Address)
- }
- if s.Port != 0 {
- network = "tcp"
- addr = fmt.Sprintf(":%v", s.Port)
- }
- if addr != "" {
- log.Printf("Gopls daemon: listening on %s network, address %s...", network, addr)
- defer log.Printf("Gopls daemon: exiting")
- return jsonrpc2.ListenAndServe(ctx, network, addr, ss, s.IdleTimeout)
- }
- stream := jsonrpc2.NewHeaderStream(fakenet.NewConn("stdio", os.Stdin, os.Stdout))
- if s.Trace && di != nil {
- stream = protocol.LoggingStream(stream, di.LogWriter)
- }
- conn := jsonrpc2.NewConn(stream)
- err := ss.ServeStream(ctx, conn)
- if errors.Is(err, io.EOF) {
- return nil
- }
- return err
-}
-
-// parseAddr parses the -listen flag in to a network, and address.
-func parseAddr(listen string) (network string, address string) {
- // Allow passing just -remote=auto, as a shorthand for using automatic remote
- // resolution.
- if listen == lsprpc.AutoNetwork {
- return lsprpc.AutoNetwork, ""
- }
- if parts := strings.SplitN(listen, ";", 2); len(parts) == 2 {
- return parts[0], parts[1]
- }
- return "tcp", listen
-}
projects / dotfiles / .git / blobdiff