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ce1e02096a
* ipn/ipnlocal: support most Linuxes in handleC2NUpdate Updates #6995 Signed-off-by: Chris Palmer <cpalmer@tailscale.com>
96 lines
2.9 KiB
Go
96 lines
2.9 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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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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"fmt"
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"runtime"
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"strings"
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"github.com/peterbourgon/ff/v3/ffcli"
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"tailscale.com/clientupdate"
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"tailscale.com/version"
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"tailscale.com/version/distro"
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)
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var updateCmd = &ffcli.Command{
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Name: "update",
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ShortUsage: "update",
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ShortHelp: "[ALPHA] Update Tailscale to the latest/different version",
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Exec: runUpdate,
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FlagSet: (func() *flag.FlagSet {
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fs := newFlagSet("update")
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fs.BoolVar(&updateArgs.yes, "yes", false, "update without interactive prompts")
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fs.BoolVar(&updateArgs.dryRun, "dry-run", false, "print what update would do without doing it, or prompts")
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fs.BoolVar(&updateArgs.appStore, "app-store", false, "HIDDEN: check the App Store for updates, even if this is not an App Store install (for testing only)")
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// These flags are not supported on several systems that only provide
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// the latest version of Tailscale:
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//
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// - Arch (and other pacman-based distros)
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// - Alpine (and other apk-based distros)
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// - FreeBSD (and other pkg-based distros)
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if distro.Get() != distro.Arch && distro.Get() != distro.Alpine && runtime.GOOS != "freebsd" {
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fs.StringVar(&updateArgs.track, "track", "", `which track to check for updates: "stable" or "unstable" (dev); empty means same as current`)
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fs.StringVar(&updateArgs.version, "version", "", `explicit version to update/downgrade to`)
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}
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return fs
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})(),
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}
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var updateArgs struct {
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yes bool
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dryRun bool
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appStore bool
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track string // explicit track; empty means same as current
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version string // explicit version; empty means auto
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}
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func runUpdate(ctx context.Context, args []string) error {
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if len(args) > 0 {
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return flag.ErrHelp
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}
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if updateArgs.version != "" && updateArgs.track != "" {
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return errors.New("cannot specify both --version and --track")
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}
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ver := updateArgs.version
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if updateArgs.track != "" {
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ver = updateArgs.track
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}
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err := clientupdate.Update(clientupdate.Arguments{
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Version: ver,
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AppStore: updateArgs.appStore,
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Logf: func(format string, args ...any) { fmt.Printf(format+"\n", args...) },
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Confirm: confirmUpdate,
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})
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if errors.Is(err, errors.ErrUnsupported) {
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return errors.New("The 'update' command is not supported on this platform; see https://tailscale.com/s/client-updates")
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}
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return err
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}
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func confirmUpdate(ver string) bool {
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if updateArgs.yes {
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fmt.Printf("Updating Tailscale from %v to %v; --yes given, continuing without prompts.\n", version.Short(), ver)
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return true
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}
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if updateArgs.dryRun {
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fmt.Printf("Current: %v, Latest: %v\n", version.Short(), ver)
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return false
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}
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fmt.Printf("This will update Tailscale from %v to %v. Continue? [y/n] ", version.Short(), ver)
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var resp string
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fmt.Scanln(&resp)
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resp = strings.ToLower(resp)
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switch resp {
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case "y", "yes", "sure":
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return true
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}
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return false
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}
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