Filter By Hak Name

internal/project/project.go

@@ -220,6 +220,55 @@ func (p *Project) BuildDir() string {
 	return filepath.Join(p.Root, p.Config.Paths.Build)
 }
 
+func (p *Project) CloneWithHAKNames(names []string) (*Project, error) {
+	if len(names) == 0 {
+		return p, nil
+	}
+
+	wanted := make(map[string]struct{}, len(names))
+	for _, name := range names {
+		trimmed := strings.TrimSpace(strings.ToLower(name))
+		if trimmed == "" {
+			continue
+		}
+		wanted[trimmed] = struct{}{}
+	}
+	if len(wanted) == 0 {
+		return p, nil
+	}
+
+	filtered := make([]HAKConfig, 0, len(p.Config.HAKs))
+	found := make(map[string]struct{}, len(wanted))
+	for _, hak := range p.Config.HAKs {
+		key := strings.ToLower(strings.TrimSpace(hak.Name))
+		if _, ok := wanted[key]; !ok {
+			continue
+		}
+		filtered = append(filtered, hak)
+		found[key] = struct{}{}
+	}
+
+	var missing []string
+	for _, name := range names {
+		key := strings.TrimSpace(strings.ToLower(name))
+		if key == "" {
+			continue
+		}
+		if _, ok := found[key]; !ok {
+			missing = append(missing, name)
+		}
+	}
+	if len(missing) > 0 {
+		return nil, fmt.Errorf("unknown hak name(s): %s", strings.Join(missing, ", "))
+	}
+
+	clone := *p
+	clone.Config = p.Config
+	clone.Config.HAKs = filtered
+	clone.Inventory = p.Inventory
+	return &clone, nil
+}
+
 func (p *Project) HasTopData() bool {
 	return strings.TrimSpace(p.Config.TopData.Source) != ""
 }