chore: import upstream snapshot with attribution

pkg/inventory/errors.go

@@ -0,0 +1,41 @@
+package inventory
+
+import "fmt"
+
+// ToolsetDoesNotExistError is returned when a toolset is not found.
+type ToolsetDoesNotExistError struct {
+	Name string
+}
+
+func (e *ToolsetDoesNotExistError) Error() string {
+	return fmt.Sprintf("toolset %s does not exist", e.Name)
+}
+
+func (e *ToolsetDoesNotExistError) Is(target error) bool {
+	if target == nil {
+		return false
+	}
+	if _, ok := target.(*ToolsetDoesNotExistError); ok {
+		return true
+	}
+	return false
+}
+
+// NewToolsetDoesNotExistError creates a new ToolsetDoesNotExistError.
+func NewToolsetDoesNotExistError(name string) *ToolsetDoesNotExistError {
+	return &ToolsetDoesNotExistError{Name: name}
+}
+
+// ToolDoesNotExistError is returned when a tool is not found.
+type ToolDoesNotExistError struct {
+	Name string
+}
+
+func (e *ToolDoesNotExistError) Error() string {
+	return fmt.Sprintf("tool %s does not exist", e.Name)
+}
+
+// NewToolDoesNotExistError creates a new ToolDoesNotExistError.
+func NewToolDoesNotExistError(name string) *ToolDoesNotExistError {
+	return &ToolDoesNotExistError{Name: name}
+}