1 files changed, 55 insertions, 2 deletions
diff --git a/lib/crosssdk/sdks.go b/lib/crosssdk/sdks.go
index 435aae6..87bb85d 100644
--- a/lib/crosssdk/sdks.go
+++ b/lib/crosssdk/sdks.go
@@ -3,6 +3,7 @@ package crosssdk
 import (
 	"path"
 	"path/filepath"
+	"sync"
 
 	"github.com/Sirupsen/logrus"
 	"github.com/iotbzh/xds-server/lib/common"
@@ -10,7 +11,11 @@ import (
 )
 
 // SDKs List of installed SDK
-type SDKs []*SDK
+type SDKs struct {
+	Sdks []SDK
+
+	mutex sync.Mutex
+}
 
 // Init creates a new instance of Syncthing
 func Init(cfg *xdsconfig.Config, log *logrus.Logger) (*SDKs, error) {
@@ -27,13 +32,61 @@ func Init(cfg *xdsconfig.Config, log *logrus.Logger) (*SDKs, error) {
 			log.Debugf("Error while retrieving SDKs: dir=%s, error=%s", sdkRD, err.Error())
 			return &s, err
 		}
+		s.mutex.Lock()
+		defer s.mutex.Unlock()
+
 		for _, d := range dirs {
 			sdk, err := NewCrossSDK(d)
 			if err != nil {
 				log.Debugf("Error while processing SDK dir=%s, err=%s", d, err.Error())
 			}
-			s = append(s, sdk)
+			s.Sdks = append(s.Sdks, *sdk)
 		}
 	}
+
+	log.Debugf("SDKs: %d cross sdks found", len(s.Sdks))
+
 	return &s, nil
 }
+
+// GetAll returns all existing SDKs
+func (s *SDKs) GetAll() []SDK {
+	s.mutex.Lock()
+	defer s.mutex.Unlock()
+	res := s.Sdks
+	return res
+}
+
+// Get returns an SDK from id
+func (s *SDKs) Get(id int) SDK {
+	s.mutex.Lock()
+	defer s.mutex.Unlock()
+
+	if id < 0 || id > len(s.Sdks) {
+		return SDK{}
+	}
+	res := s.Sdks[id]
+	return res
+}
+
+// GetEnvCmd returns the command used to initialized the environment for an SDK
+func (s *SDKs) GetEnvCmd(id string, defaultID string) string {
+	if id == "" && defaultID == "" {
+		// no env cmd
+		return ""
+	}
+
+	s.mutex.Lock()
+	defer s.mutex.Unlock()
+	defaultEnv := ""
+	for _, sdk := range s.Sdks {
+		if sdk.ID == id {
+			return sdk.GetEnvCmd()
+		}
+		if sdk.ID == defaultID {
+			defaultEnv = sdk.GetEnvCmd()
+		}
+	}
+	// Return default env that may be empty
+	return defaultEnv
+}