Go CLI work

go/cmd/zerotier/zerotier.go

@@ -14,11 +14,71 @@
 package main
 
 import (
+	"flag"
+	"fmt"
 	"os"
-	"os/signal"
-	"syscall"
+	"zerotier/cmd/zerotier/cli"
+	"zerotier/pkg/zerotier"
 )
 
+var copyrightText = fmt.Sprintf(`ZeroTier Network Virtualization Service Version %d.%d.%d
+(c)2019 ZeroTier, Inc.
+Licensed under the ZeroTier BSL (see LICENSE.txt)`,
+	zerotier.CoreVersionMajor, zerotier.CoreVersionMinor, zerotier.CoreVersionRevision)
+
+func printHelp() {
+	fmt.Println(copyrightText + `
+
+Usage: zerotier [-options] <command> [-options] [command args]
+
+Global Options
+  -j                                   Output raw JSON where applicable
+  -p <path>                            Connect to service running at this path
+  -t <authtoken.secret path>           Use secret auth token from this file
+
+Commands:
+  help                                 Show this help
+  version                              Print version
+  service [path]                       Start in system service mode
+  status                               Show ZeroTier service status and config
+  peers                                Show VL1 peers
+  roots                                Show VL1 root servers
+  addroot <type> [options]             Add a VL1 root
+    static <identity> <ip/port> [...]  Add a root with a set identity and IPs
+    dynamic <name> [default locator]   Add a dynamic root fetched by name
+  removeroot <type> [options]          Remove a VL1 root
+    static <identity>                  Remove a root with a set identity
+    dynamic <name>                     Remove a dynamic root fetched by name
+  networks                             Show joined VL2 virtual networks
+  join <network ID>                    Join a virtual network
+  leave <network ID>                   Leave a virtual network
+  show <network ID>                    Show verbose network info
+  set <network ID> <option> <value>    Set a network local config option
+    manageips <boolean>                Is IP management allowed?
+    manageroutes <boolean>             Is route management allowed?
+    globalips <boolean>                Can IPs in global IP space be managed?
+    globalroutes <boolean>             Can global IP space routes be set?
+    defaultroute <boolean>             Can default route be overridden?
+  set <local config option> <value>    Set a local configuration option
+    phy <IP/bits> blacklist <boolean>  Set or clear blacklist for CIDR
+    phy <IP/bits> trust <path ID/0>    Set or clear trusted path ID for CIDR
+    virt <address> try <IP/port> [...] Set explicit IPs for reaching a peer
+    port <port>                        Set primary local port for VL1 P2P
+    secondaryport <port/0>             Set or disable secondary VL1 P2P port
+    tertiaryport <port/0>              Set or disable tertiary VL1 P2P port
+    portsearch <boolean>               Set or disable port search on startup
+    portmapping <boolean>              Set or disable use of uPnP and NAT-PMP
+    explicitaddresses <IP/port> [...]  Set explicit external IPs to advertise
+
+Most commands require a secret token to permit control of a running ZeroTier
+service. The CLI will automatically try to read this token from the
+authtoken.secret file in the service's working directory and then from a
+file called .zerotierauth in the user's home directory. The -t option can be
+used to explicitly specify a location.
+`)
+}
+
+/*
 func nodeStart() {
 	osSignalChannel := make(chan os.Signal, 2)
 	signal.Notify(osSignalChannel, syscall.SIGTERM, syscall.SIGQUIT, syscall.SIGINT, syscall.SIGBUS)
@@ -27,6 +87,54 @@ func nodeStart() {
 		<-osSignalChannel
 	}()
 }
+*/
 
 func main() {
+	globalOpts := flag.NewFlagSet("global", flag.ContinueOnError)
+	hflag := globalOpts.Bool("h", false, "") // support -h to be canonical with other Unix utilities
+	err := globalOpts.Parse(os.Args[1:])
+	if err != nil {
+		printHelp()
+		os.Exit(1)
+		return
+	}
+	args := globalOpts.Args()
+	if len(args) < 1 || *hflag {
+		printHelp()
+		os.Exit(0)
+		return
+	}
+	var cmdArgs []string
+	if len(args) > 1 {
+		cmdArgs = args[1:]
+	}
+
+	switch args[0] {
+	case "help":
+		printHelp()
+		os.Exit(0)
+		return
+	default:
+		printHelp()
+		os.Exit(1)
+		return
+
+	case "version":
+		fmt.Printf("%d.%d.%d\n", zerotier.CoreVersionMajor, zerotier.CoreVersionMinor, zerotier.CoreVersionRevision)
+		os.Exit(0)
+
+	case "service":
+		cli.Service(cmdArgs)
+	case "status":
+		cli.Status(cmdArgs)
+	case "peers":
+	case "roots":
+	case "addroot":
+	case "removeroot":
+	case "networks":
+	case "join":
+	case "leave":
+	case "show":
+	case "set":
+	}
 }