Correctly handle updating server data

config/config.go

@@ -2,7 +2,8 @@ package config
 
 import (
 	"fmt"
-	"github.com/mcuadros/go-defaults"
+	"github.com/creasty/defaults"
+	"github.com/pkg/errors"
 	"go.uber.org/zap"
 	"gopkg.in/yaml.v2"
 	"io/ioutil"
@@ -189,8 +190,6 @@ func (c *Configuration) SetDefaults() {
 		Sftp:         &SftpConfiguration{},
 	}
 
-	defaults.SetDefaults(c.System.Sftp)
-
 	// By default the internal webserver should bind to all interfaces and
 	// be served on port 8080.
 	c.Api = &ApiConfiguration{
@@ -222,9 +221,10 @@ func (c *Configuration) SetDefaults() {
 			Interfaces: &dockerNetworkInterfaces{},
 		},
 	}
-	defaults.SetDefaults(c.Docker)
+
-	defaults.SetDefaults(c.Docker.Network)
+	if err := defaults.Set(c); err != nil {
-	defaults.SetDefaults(c.Docker.Network.Interfaces)
+		zap.S().Warnw("error setting defaults for configuration", zap.Error(errors.WithStack(err)))
+	}
 }
 
 // Reads the configuration from the provided file and returns the configuration

go.mod

@@ -35,7 +35,6 @@ require (
 	github.com/imdario/mergo v0.3.8
 	github.com/julienschmidt/httprouter v1.2.0
 	github.com/magiconair/properties v1.8.1
-	github.com/mcuadros/go-defaults v1.1.0
 	github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db
 	github.com/olebedev/emitter v0.0.0-20190110104742-e8d1457e6aee
 	github.com/onsi/ginkgo v1.8.0 // indirect

go.sum

@@ -74,8 +74,6 @@ github.com/magefile/mage v1.9.0 h1:t3AU2wNwehMCW97vuqQLtw6puppWXHO+O2MHo5a50XE=
 github.com/magefile/mage v1.9.0/go.mod h1:z5UZb/iS3GoOSn0JgWuiw7dxlurVYTu+/jHXqQg881A=
 github.com/magiconair/properties v1.8.1 h1:ZC2Vc7/ZFkGmsVC9KvOjumD+G5lXy2RtTKyzRKO2BQ4=
 github.com/magiconair/properties v1.8.1/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
-github.com/mcuadros/go-defaults v1.1.0 h1:K0LgSNfsSUrbEHR7HgfZpOHVWYsPnYh/dKTA7pGeZ/I=
-github.com/mcuadros/go-defaults v1.1.0/go.mod h1:vl9cJiNIIHISQeboDhZBUCiCOa3GkeioLe3Y95NXF6Y=
 github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db h1:62I3jR2EmQ4l5rM/4FEfDWcRD+abF5XlKShorW5LRoQ=
 github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db/go.mod h1:l0dey0ia/Uv7NcFFVbCLtqEBQbrT4OCwCSKTEv6enCw=
 github.com/olebedev/emitter v0.0.0-20190110104742-e8d1457e6aee h1:IquUs3fIykn10zWDIyddanhpTqBvAHMaPnFhQuyYw5U=

installer/installer.go

@@ -30,7 +30,7 @@ func New(data []byte) (*Installer, error) {
 		Uuid:       getString(data, "uuid"),
 		Suspended:  false,
 		State:      server.ProcessOfflineState,
-		Invocation: "",
+		Invocation: getString(data, "invocation"),
 		EnvVars:    make(map[string]string),
 		Build: server.BuildSettings{
 			MemoryLimit: getInt(data, "build", "memory"),

server/server.go

@@ -2,7 +2,7 @@ package server
 
 import (
 	"fmt"
-	"github.com/mcuadros/go-defaults"
+	"github.com/creasty/defaults"
 	"github.com/patrickmn/go-cache"
 	"github.com/pkg/errors"
 	"github.com/pterodactyl/wings/api"
@@ -211,9 +211,8 @@ func (s *Server) Init() {
 func FromConfiguration(data []byte, cfg *config.SystemConfiguration) (*Server, error) {
 	s := new(Server)
 
-	defaults.SetDefaults(s)
+	if err := defaults.Set(s); err != nil {
-	s.CrashDetection = CrashDetection{
+		return nil, err
-		Enabled: true,
 	}
 
 	s.Init()

server/update.go

@@ -3,6 +3,7 @@ package server
 import (
 	"encoding/json"
 	"github.com/buger/jsonparser"
+	"github.com/creasty/defaults"
 	"github.com/imdario/mergo"
 	"github.com/pkg/errors"
 	"go.uber.org/zap"
@@ -29,6 +30,11 @@ func (s *Server) UpdateDataStructure(data []byte) error {
 		return errors.New("attempting to merge a data stack with an invalid UUID")
 	}
 
+	// Set the default values in the interface that we unmarshaled into.
+	if err := defaults.Set(&src); err != nil {
+		return err
+	}
+
 	// Merge the new data object that we have received with the existing server data object
 	// and then save it to the disk so it is persistent.
 	if err := mergo.Merge(s, src, mergo.WithOverride); err != nil {