Resolve nilaway issues.

Author: NTSFka

internal/tool.go

@@ -146,6 +146,10 @@ type Tools []Tool
 
 // OnlyAvailable returns only tools that are available
 func (t *Tools) OnlyAvailable() (result Tools) {
+	if t == nil {
+		return
+	}
+
 	for _, tool := range *t {
 		if tool.IsAvailable() {
 			result = append(result, tool)
@@ -158,6 +162,10 @@ func (t *Tools) OnlyAvailable() (result Tools) {
 func (t *Tools) FilterByTags(tags []string) (result Tools) {
 	Assert(len(tags) > 0, "tags is empty")
 
+	if t == nil {
+		return
+	}
+
 	for _, tool := range *t {
 		contains := true
 
@@ -186,7 +194,7 @@ func (t *Tools) Get(id string) Tool {
 
 // PrintTable prints tools list to the writer
 func (t *Tools) PrintTable(writer io.Writer) {
-	if len(*t) == 0 {
+	if t == nil || len(*t) == 0 {
 		return
 	}
 

main.go

@@ -17,11 +17,16 @@ var version = "dev"
 func parseEnvironment(environment string) (string, string) {
 	parts := strings.SplitN(environment, ":", 2)
 
-	if len(parts) == 1 {
+	switch len(parts) {
+	case 0:
+		return "", ""
+	case 1:
 		return parts[0], ""
+	default:
+		fallthrough
+	case 2:
+		return parts[0], parts[1]
 	}
-
-	return parts[0], parts[1]
 }
 
 func initEnvironment(directory string, environment *string, envProviders internal.EnvironmentProviders) (internal.Environment, error) {