Added new command check-registry

Author: cmaglie

internal/cli/check-registry.go

@@ -0,0 +1,46 @@
+// This file is part of libraries-repository-engine.
+//
+// Copyright 2025 ARDUINO SA (http://www.arduino.cc/)
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published
+// by the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+//
+// You can be released from the requirements of the above licenses by purchasing
+// a commercial license. Buying such a license is mandatory if you want to
+// modify or otherwise use the software for commercial activities involving the
+// Arduino software without disclosing the source code of your own applications.
+// To purchase a commercial license, send an email to [email protected].
+
+package cli
+
+import (
+	checkregistry "github.com/arduino/libraries-repository-engine/internal/cli/check-registry"
+	"github.com/spf13/cobra"
+)
+
+func init() {
+	// checkRegistryCmd defines the `check-registry` CLI subcommand.
+	var checkRegistryCmd = &cobra.Command{
+		Short:                 "Check the reposiries.txt file format",
+		Long:                  "Check the reposiries.txt file format",
+		DisableFlagsInUseLine: true,
+		Use: `check-registry FLAG... /path/to/registry.txt
+
+Validate the registry.txt format and correctness.`,
+		Args: cobra.ExactArgs(1),
+		Run: func(cmd *cobra.Command, args []string) {
+			checkregistry.CheckRegistry(args[0])
+		},
+	}
+	rootCmd.AddCommand(checkRegistryCmd)
+}

internal/cli/check-registry/check-registry.go

@@ -0,0 +1,69 @@
+package checkregistry
+
+import (
+	"fmt"
+	"os"
+	"reflect"
+
+	"github.com/arduino/libraries-repository-engine/internal/libraries"
+)
+
+func CheckRegistry(reposFile string) {
+	info, err := os.Stat(reposFile)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "error: While loading registry data file: %s\n", err)
+		os.Exit(1)
+	}
+
+	if info.IsDir() {
+		fmt.Fprintf(os.Stderr, "error: Registry data file argument %s is a folder, not a file\n", reposFile)
+		os.Exit(1)
+	}
+
+	rawRepos, err := libraries.LoadRepoListFromFile(reposFile)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "error: While loading registry data file: %s\n", err)
+		os.Exit(1)
+	}
+
+	filteredRepos, err := libraries.ListRepos(reposFile)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "error: While filtering registry data file: %s\n", err)
+		os.Exit(1)
+	}
+
+	if !reflect.DeepEqual(rawRepos, filteredRepos) {
+		fmt.Fprintln(os.Stderr, "error: Registry data file contains duplicate URLs")
+		os.Exit(1)
+	}
+
+	validTypes := map[string]bool{
+		"Arduino":     true,
+		"Contributed": true,
+		"Partner":     true,
+		"Recommended": true,
+		"Retired":     true,
+	}
+
+	nameMap := make(map[string]bool)
+	for _, entry := range rawRepos {
+		// Check entry types
+		if len(entry.Types) == 0 {
+			fmt.Fprintf(os.Stderr, "error: Type not specified for library '%s'\n", entry.LibraryName)
+			os.Exit(1)
+		}
+		for _, entryType := range entry.Types {
+			if _, valid := validTypes[entryType]; !valid {
+				fmt.Fprintf(os.Stderr, "error: Invalid type '%s' used by library '%s'\n", entryType, entry.LibraryName)
+				os.Exit(1)
+			}
+		}
+
+		// Check library name of the entry
+		if _, found := nameMap[entry.LibraryName]; found {
+			fmt.Fprintf(os.Stderr, "error: Registry data file contains duplicates of name '%s'\n", entry.LibraryName)
+			os.Exit(1)
+		}
+		nameMap[entry.LibraryName] = true
+	}
+}