support busyBox and sysV, for openWrt, fix #419, change update url

lib/install/install.go

@@ -16,6 +16,124 @@ import (
 	"strings"
 )
 
+// Keep it in sync with the template from service_sysv_linux.go file
+// Use "ps | grep -v grep | grep $(get_pid)" because "ps PID" may not work on OpenWrt
+const SysvScript = `#!/bin/sh
+# For RedHat and cousins:
+# chkconfig: - 99 01
+# description: {{.Description}}
+# processname: {{.Path}}
+### BEGIN INIT INFO
+# Provides:          {{.Path}}
+# Required-Start:
+# Required-Stop:
+# Default-Start:     2 3 4 5
+# Default-Stop:      0 1 6
+# Short-Description: {{.DisplayName}}
+# Description:       {{.Description}}
+### END INIT INFO
+cmd="{{.Path}}{{range .Arguments}} {{.|cmd}}{{end}}"
+name=$(basename $(readlink -f $0))
+pid_file="/var/run/$name.pid"
+stdout_log="/var/log/$name.log"
+stderr_log="/var/log/$name.err"
+[ -e /etc/sysconfig/$name ] && . /etc/sysconfig/$name
+get_pid() {
+    cat "$pid_file"
+}
+is_running() {
+    [ -f "$pid_file" ] && ps | grep -v grep | grep $(get_pid) > /dev/null 2>&1
+}
+case "$1" in
+    start)
+        if is_running; then
+            echo "Already started"
+        else
+            echo "Starting $name"
+            {{if .WorkingDirectory}}cd '{{.WorkingDirectory}}'{{end}}
+            $cmd >> "$stdout_log" 2>> "$stderr_log" &
+            echo $! > "$pid_file"
+            if ! is_running; then
+                echo "Unable to start, see $stdout_log and $stderr_log"
+                exit 1
+            fi
+        fi
+    ;;
+    stop)
+        if is_running; then
+            echo -n "Stopping $name.."
+            kill $(get_pid)
+            for i in $(seq 1 10)
+            do
+                if ! is_running; then
+                    break
+                fi
+                echo -n "."
+                sleep 1
+            done
+            echo
+            if is_running; then
+                echo "Not stopped; may still be shutting down or shutdown may have failed"
+                exit 1
+            else
+                echo "Stopped"
+                if [ -f "$pid_file" ]; then
+                    rm "$pid_file"
+                fi
+            fi
+        else
+            echo "Not running"
+        fi
+    ;;
+    restart)
+        $0 stop
+        if is_running; then
+            echo "Unable to stop, will not attempt to start"
+            exit 1
+        fi
+        $0 start
+    ;;
+    status)
+        if is_running; then
+            echo "Running"
+        else
+            echo "Stopped"
+            exit 1
+        fi
+    ;;
+    *)
+    echo "Usage: $0 {start|stop|restart|status}"
+    exit 1
+    ;;
+esac
+exit 0
+`
+
+const SystemdScript = `[Unit]
+Description={{.Description}}
+ConditionFileIsExecutable={{.Path|cmdEscape}}
+{{range $i, $dep := .Dependencies}} 
+{{$dep}} {{end}}
+[Service]
+LimitNOFILE=65536
+StartLimitInterval=5
+StartLimitBurst=10
+ExecStart={{.Path|cmdEscape}}{{range .Arguments}} {{.|cmd}}{{end}}
+{{if .ChRoot}}RootDirectory={{.ChRoot|cmd}}{{end}}
+{{if .WorkingDirectory}}WorkingDirectory={{.WorkingDirectory|cmdEscape}}{{end}}
+{{if .UserName}}User={{.UserName}}{{end}}
+{{if .ReloadSignal}}ExecReload=/bin/kill -{{.ReloadSignal}} "$MAINPID"{{end}}
+{{if .PIDFile}}PIDFile={{.PIDFile|cmd}}{{end}}
+{{if and .LogOutput .HasOutputFileSupport -}}
+StandardOutput=file:/var/log/{{.Name}}.out
+StandardError=file:/var/log/{{.Name}}.err
+{{- end}}
+Restart=always
+RestartSec=120
+[Install]
+WantedBy=multi-user.target
+`
+
 func UpdateNps() {
 	destPath := downloadLatest("server")
 	//复制文件到对应目录
@@ -36,7 +154,7 @@ type release struct {
 
 func downloadLatest(bin string) string {
 	// get version
-	data, err := http.Get("https://api.github.com/repos/cnlh/nps/releases/latest")
+	data, err := http.Get("https://api.github.com/repos/ehang-io/nps/releases/latest")
 	if err != nil {
 		log.Fatal(err.Error())
 	}