multiconf with -confdir arg

common/platform/ctlcmd/ctlcmd.go

@@ -4,6 +4,7 @@ import (
 	"io"
 	"os"
 	"os/exec"
+	"strings"
 
 	"v2ray.com/core/common/buf"
 	"v2ray.com/core/common/platform"
@@ -42,7 +43,7 @@ func Run(args []string, input io.Reader) (buf.MultiBuffer, error) {
 
 	// log stderr, info message
 	if !errBuffer.IsEmpty() {
-		newError("v2ctl > \n", errBuffer.MultiBuffer.String()).AtInfo().WriteToLog()
+		newError("<v2ctl message> \n", strings.TrimSpace(errBuffer.MultiBuffer.String())).AtInfo().WriteToLog()
 	}
 
 	return outBuffer.MultiBuffer, nil

common/platform/platform.go

@@ -83,3 +83,9 @@ func GetConfigurationPath() string {
 	configPath := NewEnvFlag(name).GetValue(getExecutableDir)
 	return filepath.Join(configPath, "config.json")
 }
+
+func GetConfDirPath() string {
+	const name = "v2ray.location.confdir"
+	configPath := NewEnvFlag(name).GetValue(getExecutableDir)
+	return configPath
+}

infra/conf/v2ray.go

@@ -2,6 +2,8 @@ package conf
 
 import (
 	"encoding/json"
+	"log"
+	"os"
 	"strings"
 
 	"v2ray.com/core"
@@ -31,6 +33,8 @@ var (
 		"mtproto":     func() interface{} { return new(MTProtoClientConfig) },
 		"dns":         func() interface{} { return new(DnsOutboundConfig) },
 	}, "protocol", "settings")
+
+	ctllog = log.New(os.Stderr, "v2ctl> ", 0)
 )
 
 func toProtocolList(s []string) ([]proxyman.KnownProtocols, error) {
@@ -361,10 +365,10 @@ func (c *Config) Override(o *Config, fn string) {
 		if len(c.InboundConfigs) > 0 && len(o.InboundConfigs) == 1 {
 			if idx := c.findInboundTag(o.InboundConfigs[0].Tag); idx > -1 {
 				c.InboundConfigs[idx] = o.InboundConfigs[0]
-				newError("<", fn, "> updated inbound with tag: ", o.InboundConfigs[0].Tag).AtInfo().WriteToLog()
+				ctllog.Println("[", fn, "] updated inbound with tag: ", o.InboundConfigs[0].Tag)
 			} else {
 				c.InboundConfigs = append(c.InboundConfigs, o.InboundConfigs[0])
-				newError("<", fn, "> appended inbound with tag: ", o.InboundConfigs[0].Tag).AtInfo().WriteToLog()
+				ctllog.Println("[", fn, "] appended inbound with tag: ", o.InboundConfigs[0].Tag)
 			}
 		} else {
 			c.InboundConfigs = o.InboundConfigs
@@ -376,14 +380,14 @@ func (c *Config) Override(o *Config, fn string) {
 		if len(c.OutboundConfigs) > 0 && len(o.OutboundConfigs) == 1 {
 			if idx := c.findOutboundTag(o.OutboundConfigs[0].Tag); idx > -1 {
 				c.OutboundConfigs[idx] = o.OutboundConfigs[0]
-				newError("<", fn, "> updated outbound with tag: ", o.OutboundConfigs[0].Tag).AtInfo().WriteToLog()
+				ctllog.Println("[", fn, "] updated outbound with tag: ", o.OutboundConfigs[0].Tag)
 			} else {
 				if strings.Contains(strings.ToLower(fn), "tail") {
 					c.OutboundConfigs = append(c.OutboundConfigs, o.OutboundConfigs[0])
-					newError("<", fn, "> appended outbound with tag: ", o.OutboundConfigs[0].Tag).AtInfo().WriteToLog()
+					ctllog.Println("[", fn, "] appended outbound with tag: ", o.OutboundConfigs[0].Tag)
 				} else {
 					c.OutboundConfigs = append(o.OutboundConfigs, c.OutboundConfigs...)
-					newError("<", fn, "> prepended outbound with tag: ", o.OutboundConfigs[0].Tag).AtInfo().WriteToLog()
+					ctllog.Println("[", fn, "] prepended outbound with tag: ", o.OutboundConfigs[0].Tag)
 				}
 			}
 		} else {

infra/control/command.go

@@ -2,6 +2,8 @@ package control
 
 import (
 	"fmt"
+	"log"
+	"os"
 	"strings"
 )
 
@@ -18,6 +20,7 @@ type Command interface {
 
 var (
 	commandRegistry = make(map[string]Command)
+	ctllog          = log.New(os.Stderr, "v2ctl> ", 0)
 )
 
 func RegisterCommand(cmd Command) error {

infra/control/config.go

@@ -37,7 +37,7 @@ func (c *ConfigCommand) Execute(args []string) error {
 
 	conf := &conf.Config{}
 	for _, arg := range args {
-		newError("Reading config: ", arg).AtInfo().WriteToLog()
+		ctllog.Println("Read config: ", arg)
 		r, err := c.LoadArg(arg)
 		common.Must(err)
 		c, err := serial.DecodeJSONConfig(r)

main/main.go

@@ -5,8 +5,11 @@ package main
 import (
 	"flag"
 	"fmt"
+	"io/ioutil"
+	"log"
 	"os"
 	"os/signal"
+	"path"
 	"path/filepath"
 	"runtime"
 	"strings"
@@ -20,6 +23,7 @@ import (
 
 var (
 	configFiles cmdarg.Arg // "Config file for V2Ray.", the option is customed type, parse in main
+	configDir   string
 	version     = flag.Bool("version", false, "Show current version of V2Ray.")
 	test        = flag.Bool("test", false, "Test config file only, without launching V2Ray server.")
 	format      = flag.String("format", "json", "Format of input file.")
@@ -31,7 +35,25 @@ func fileExists(file string) bool {
 	return err == nil && !info.IsDir()
 }
 
+func dirExists(file string) bool {
+	info, err := os.Stat(file)
+	return err == nil && info.IsDir()
+}
+
+func readConfDir(dirPath string) {
+	confs, err := ioutil.ReadDir(dirPath)
+	if err != nil {
+		log.Fatalln(err)
+	}
+	for _, f := range confs {
+		configFiles.Set(path.Join(dirPath, f.Name()))
+	}
+}
+
 func getConfigFilePath() (cmdarg.Arg, error) {
+	if dirExists(configDir) {
+		readConfDir(configDir)
+	}
 	if len(configFiles) > 0 {
 		return configFiles, nil
 	}
@@ -39,14 +61,25 @@ func getConfigFilePath() (cmdarg.Arg, error) {
 	if workingDir, err := os.Getwd(); err == nil {
 		configFile := filepath.Join(workingDir, "config.json")
 		if fileExists(configFile) {
+			log.Println("Using default config: ", configFile)
 			return cmdarg.Arg{configFile}, nil
 		}
 	}
 
 	if configFile := platform.GetConfigurationPath(); fileExists(configFile) {
+		log.Println("Using config from env: ", configFile)
 		return cmdarg.Arg{configFile}, nil
 	}
 
+	if envConfDir := platform.GetConfDirPath(); dirExists(envConfDir) {
+		log.Println("Using confdir from env: ", envConfDir)
+		readConfDir(envConfDir)
+		if len(configFiles) > 0 {
+			return configFiles, nil
+		}
+	}
+
+	log.Println("Using config from STDIN")
 	return cmdarg.Arg{"stdin:"}, nil
 }
 
@@ -87,7 +120,8 @@ func printVersion() {
 
 func main() {
 	flag.Var(&configFiles, "config", "Config file for V2Ray. Multiple assign is accepted (only json). Latter ones overrides the former ones.")
-	flag.Var(&configFiles, "c", "short alias of -config")
+	flag.Var(&configFiles, "c", "Short alias of -config")
+	flag.StringVar(&configDir, "confdir", "", "A dir with multiple json config")
 	flag.Parse()
 
 	printVersion()