user can not switch ..

.gitignore

@@ -26,3 +26,4 @@ _testmain.go
 output/
 gosuv
 bindata_assetfs.go
+assets_vfsdata.go

.travis.yml

@@ -6,12 +6,9 @@ before_install:
 - openssl aes-256-cbc -K $encrypted_6219389dc5b7_key -iv $encrypted_6219389dc5b7_iv
   -in equinox.key.enc -out equinox.key -d
 before_script:
-- go get -v github.com/jteeuwen/go-bindata/...
-- go get -v github.com/elazarl/go-bindata-assetfs/...
-- go-bindata-assetfs -tags bindata res/...
+- go get -v github.com/shurcooL/vfsgen
 script:
 - go test -v
-- go test -v -tags bindata
 before_deploy: |
   if [ ! -z "$TRAVIS_TAG" ]; then
     go get -v github.com/gobuild/gopack

assets_dev.go

@@ -0,0 +1,9 @@
+// +build !vfs
+//go:generate go run assets_generate.go
+
+package main
+
+import "net/http"
+
+// Assets contains project assets.
+var Assets http.FileSystem = http.Dir("res")

assets_generate.go

@@ -0,0 +1,23 @@
+// +build ignore
+
+package main
+
+import (
+	"log"
+	"net/http"
+
+	"github.com/shurcooL/vfsgen"
+)
+
+func main() {
+	var fs http.FileSystem = http.Dir("res")
+
+	err := vfsgen.Generate(fs, vfsgen.Options{
+		PackageName:  "main",
+		BuildTags:    "vfs",
+		VariableName: "Assets",
+	})
+	if err != nil {
+		log.Fatalln(err)
+	}
+}

fsm.go

@@ -162,7 +162,7 @@ func (p *Program) RunNotification() {
 
 func IsRoot() bool {
 	u, err := user.Current()
-	return err == nil && u.Uid == "0"
+	return err == nil && u.Username == "root"
 }
 
 type Process struct {
@@ -202,10 +202,11 @@ func (p *Process) buildCommand() *kexec.KCommand {
 	// config environ
 	cmd.Env = os.Environ() // inherit current vars
 	environ := map[string]string{}
-	if p.User != "" && IsRoot() {
-		err := cmd.SetUser(p.User)
-		if err != nil {
-			log.Warnf("[%s] chusr to %s failed", p.Name, p.User)
+	if p.User != "" {
+		if !IsRoot() {
+			log.Warnf("detect not root, can not switch user")
+		} else if err := cmd.SetUser(p.User); err != nil {
+			log.Warnf("[%s] chusr to %s failed, %v", p.Name, p.User, err)
 		} else {
 			var homeDir string
 			switch runtime.GOOS {

res.go

@@ -1,3 +0,0 @@
-package main
-
-var templateDir = "res"

res_bindata.go

@@ -26,7 +26,7 @@ func parseTemplate(name string, content string) {
 }
 
 func init() {
-	http.Handle("/res/", http.StripPrefix("/res/", http.FileServer(assetFS())))
+	http.Handle("/res/", http.StripPrefix("/res/", Assets))
 }
 
 func executeTemplate(wr io.Writer, name string, data interface{}) {

res_nobindata.go

@@ -1,25 +0,0 @@
-// +build !bindata
-
-package main
-
-import (
-	"html/template"
-	"io"
-	"io/ioutil"
-	"net/http"
-	"path/filepath"
-)
-
-func init() {
-	fs := http.FileServer(http.Dir(templateDir))
-	http.Handle("/res/", http.StripPrefix("/res/", fs))
-}
-
-func executeTemplate(wr io.Writer, name string, data interface{}) {
-	path := filepath.Join(templateDir, name+".html")
-	body, err := ioutil.ReadFile(path)
-	if err != nil {
-		panic(err)
-	}
-	template.Must(template.New("t").Delims("[[", "]]").Parse(string(body))).Execute(wr, data)
-}

web.go

@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
+	"html/template"
 	"io"
 	"io/ioutil"
 	"net/http"
@@ -32,6 +33,7 @@ func init() {
 	if defaultConfigDir == "" {
 		defaultConfigDir = filepath.Join(UserHomeDir(), ".gosuv")
 	}
+	http.Handle("/res/", http.StripPrefix("/res/", http.FileServer(Assets))) // http.StripPrefix("/res/", Assets))
 }
 
 type Supervisor struct {
@@ -233,17 +235,24 @@ type WebConfig struct {
 }
 
 func (s *Supervisor) renderHTML(w http.ResponseWriter, name string, data interface{}) {
-	w.Header().Set("Content-Type", "text/html")
-	wc := WebConfig{}
-	wc.Version = Version
-	user, err := user.Current()
-	if err == nil {
-		wc.User = user.Username
+	file, err := Assets.Open(name + ".html")
+	if err != nil {
+		panic(err)
 	}
+	defer file.Close()
+	body, _ := ioutil.ReadAll(file)
+
 	if data == nil {
+		wc := WebConfig{}
+		wc.Version = Version
+		user, err := user.Current()
+		if err == nil {
+			wc.User = user.Username
+		}
 		data = wc
 	}
-	executeTemplate(w, name, data)
+	w.Header().Set("Content-Type", "text/html")
+	template.Must(template.New("t").Delims("[[", "]]").Parse(string(body))).Execute(w, data)
 }
 
 type JSONResponse struct {