feat(remove.go): added removing packages

client.go

@@ -16,7 +16,7 @@ func client(conn net.Conn, instance string) error {
 		log.Fatal(err)
 	}
 	log.Println("Message Received:", message)
-	var objmap map[string]string
+	var objmap map[string]interface{}
 	err = json.Unmarshal([]byte(message), &objmap)
 	if err != nil {
 		log.Println(err)
@@ -31,6 +31,12 @@ func client(conn net.Conn, instance string) error {
 				log.Println(err)
 				return err
 			}
+		case "remove":
+			err = removeMap(conn, instance, objmap)
+			if err != nil {
+				log.Println(err)
+				return err
+			}
 		case "list":
 			err = list(conn, instance)
 			if err != nil {
@@ -38,7 +44,7 @@ func client(conn net.Conn, instance string) error {
 				return err
 			}
 		default:
-			err = errors.New("Unknown Command: " + val)
+			err = errors.New("Unknown Command: " + val.(string))
 			log.Println(err)
 			return err
 		}

remove.go

@@ -0,0 +1,45 @@
+package main
+
+import (
+	"errors"
+	"net"
+	"os"
+	"path/filepath"
+)
+
+func removeMap(conn net.Conn, instance string, objmap map[string]interface{}) error {
+	program, has := objmap["package"]
+	if !has {
+		return errors.New("a package is required")
+	}
+
+	keep_data, has := objmap["keep_data"]
+	if !has {
+		keep_data = false
+	}
+
+	return remove(conn, instance, program.(string), keep_data.(bool))
+}
+
+func remove(conn net.Conn, instance string, program string, keep_data bool) error {
+	package_path, err := filepath.Abs(filepath.Join(instance, "apps", program))
+	if err != nil {
+		return err
+	}
+	if exists, err := exists(package_path); !exists || err != nil {
+		return errors.New("package not found")
+	}
+	err = os.RemoveAll(package_path)
+	if err != nil {
+		return err
+	}
+	var_path, err := filepath.Abs(filepath.Join(instance, "var", program))
+	if exists, err := exists(var_path); exists && err == nil && !keep_data {
+		err = os.RemoveAll(var_path)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}