Add IPC path command line flag (#1229)

cmd/statusd/main.go

@@ -36,6 +36,8 @@ var (
 	configFiles      configFlags
 	logLevel         = flag.String("log", "", `Log level, one of: "ERROR", "WARN", "INFO", "DEBUG", and "TRACE"`)
 	logWithoutColors = flag.Bool("log-without-color", false, "Disables log colors")
+	ipcEnabled       = flag.Bool("ipc", false, "Enable IPC RPC endpoint")
+	ipcFile          = flag.String("ipcfile", "", "Set IPC file path")
 	pprofEnabled     = flag.Bool("pprof", false, "Enable runtime profiling via pprof")
 	pprofPort        = flag.Int("pprof-port", 52525, "Port for runtime profiling via pprof")
 	version          = flag.Bool("version", false, "Print version and dump configuration")
@@ -105,6 +107,12 @@ func main() {
 		config.RegisterTopics = append(config.RegisterTopics, params.WhisperDiscv5Topic)
 	}
 
+	// enable IPC RPC
+	if *ipcEnabled {
+		config.IPCEnabled = true
+		config.IPCFile = *ipcFile
+	}
+
 	// set up logging options
 	setupLogging(config)
 

node/node.go

@@ -5,7 +5,6 @@ import (
 	"errors"
 	"fmt"
 	"os"
-	"path"
 	"path/filepath"
 	"time"
 
@@ -128,12 +127,20 @@ func newGethNodeConfig(config *params.NodeConfig) (*node.Config, error) {
 			MaxPeers:        config.MaxPeers,
 			MaxPendingPeers: config.MaxPendingPeers,
 		},
-		IPCPath:          makeIPCPath(config),
 		HTTPCors:         nil,
 		HTTPModules:      config.FormatAPIModules(),
 		HTTPVirtualHosts: []string{"localhost"},
 	}
 
+	if config.IPCEnabled {
+		// use well-known defaults
+		if config.IPCFile == "" {
+			config.IPCFile = "geth.ipc"
+		}
+
+		nc.IPCPath = config.IPCFile
+	}
+
 	if config.HTTPEnabled {
 		nc.HTTPHost = config.HTTPHost
 		nc.HTTPPort = config.HTTPPort
@@ -322,15 +329,6 @@ func activateShhService(stack *node.Node, config *params.NodeConfig, db *leveldb
 	})
 }
 
-// makeIPCPath returns IPC-RPC filename
-func makeIPCPath(config *params.NodeConfig) string {
-	if !config.IPCEnabled {
-		return ""
-	}
-
-	return path.Join(config.DataDir, config.IPCFile)
-}
-
 // parseNodes creates list of discover.Node out of enode strings.
 func parseNodes(enodes []string) []*discover.Node {
 	var nodes []*discover.Node