/
serve.go
90 lines (81 loc) · 2.14 KB
/
serve.go
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// Copyright 2022 Buf Technologies, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package serve
import (
"context"
"os"
"github.com/bufbuild/buf-language-server/internal/bufls"
"github.com/bufbuild/buf-language-server/internal/bufls/buflscli"
"github.com/bufbuild/buf/private/buf/bufcli"
"github.com/bufbuild/buf/private/pkg/app/appcmd"
"github.com/bufbuild/buf/private/pkg/app/appflag"
"github.com/spf13/cobra"
"github.com/spf13/pflag"
"go.lsp.dev/protocol"
"go.uber.org/multierr"
)
const (
disableSymlinksFlagName = "disable-symlinks"
)
// NewCommand returns a new Command.
func NewCommand(
name string,
builder appflag.Builder,
) *appcmd.Command {
flags := newFlags()
return &appcmd.Command{
Use: name,
Short: "Start the language server.",
Args: cobra.MaximumNArgs(1),
Run: builder.NewRunFunc(
func(ctx context.Context, container appflag.Container) error {
return run(ctx, container, flags)
},
),
BindFlags: flags.Bind,
}
}
type flags struct {
DisableSymlinks bool
}
func newFlags() *flags {
return &flags{}
}
func (f *flags) Bind(flagSet *pflag.FlagSet) {
bufcli.BindDisableSymlinks(flagSet, &f.DisableSymlinks, disableSymlinksFlagName)
}
func run(
ctx context.Context,
container appflag.Container,
flags *flags,
) (retErr error) {
conn := buflscli.NewConn(os.Stdin, os.Stdout)
defer func() {
retErr = multierr.Append(retErr, conn.Close())
}()
engine, err := buflscli.NewEngine(ctx, container, flags.DisableSymlinks)
if err != nil {
return err
}
handler := bufls.NewHandler(container.Logger(), engine)
conn.Go(
ctx,
protocol.ServerHandler(
handler,
nil,
),
)
<-conn.Done()
return nil
}