bug fixes

database/database.go

@@ -24,8 +24,8 @@ import (
 
 var _name string = filepath.Base(os.Args[0])
 
-func GetReposUrls() []string {
-	f, err := os.Open(paths.ReposUrlsFile)
+func GetReposUrls(destDir string) []string {
+	f, err := os.Open(filepath.Join(destDir, paths.ReposUrlsFile))
 	if err != nil {
 		return []string{}
 	}
@@ -160,9 +160,11 @@ func GetPackageVersion(name string, destDir string) string {
 
 func RegPackage(name string, version string, destDir string) error {
 	data := ReadInstalled(destDir)
-	_, installed := data[name]
-	if installed {
-		if data[name][0].(string) != version {
+	val, installed := data[name]
+	
+	if installed && len(val) > 0 {
+		currentVersion := fmt.Sprintf("%v", val[0])
+		if currentVersion != version {
 			data[name][0] = version
 		}
 	} else {
@@ -175,7 +177,7 @@ func UnRegPackage(name string, destDir string) error {
 	data := ReadInstalled(destDir)
 	_, ok := data[name]
 	if !ok {
-		return fmt.Errorf("!! cant unregister '%s': package", name, "is not installed")
+		return fmt.Errorf("cant unregister '%s': package is not installed", name)
 	}
 	delete(data, name)
 	return WriteInstalled(data, destDir)