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c136f48b79
The debub subcommand was moved in 6254efb9ef43e37f80a6dc3ee3484d61f550a585 because the monitor brought in tons of dependencies to the cmd/tailscale binary, but there wasn't any need to remove the whole subcommand itself. Add it back, with a tool to dump the local daemon's goroutines. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
44 lines
915 B
Go
44 lines
915 B
Go
// Copyright (c) 2021 Tailscale Inc & 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 cli
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import (
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"context"
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"errors"
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"flag"
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"os"
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"github.com/peterbourgon/ff/v2/ffcli"
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"tailscale.com/client/tailscale"
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)
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var debugCmd = &ffcli.Command{
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Name: "debug",
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Exec: runDebug,
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FlagSet: (func() *flag.FlagSet {
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fs := flag.NewFlagSet("debug", flag.ExitOnError)
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fs.BoolVar(&debugArgs.goroutines, "daemon-goroutines", false, "If true, dump the tailscaled daemon's goroutines")
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return fs
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})(),
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}
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var debugArgs struct {
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goroutines bool
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}
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func runDebug(ctx context.Context, args []string) error {
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if len(args) > 0 {
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return errors.New("unknown arguments")
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}
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if debugArgs.goroutines {
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goroutines, err := tailscale.Goroutines(ctx)
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if err != nil {
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return err
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}
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os.Stdout.Write(goroutines)
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}
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return nil
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}
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