small refinements on Makefile and scripts/src/TemporaryIndex.php

Makefile

@@ -1,19 +1,20 @@
 default:
 	@echo ""
 	@echo "Available commands:"
+	@echo "  - make install     - Set up project the first time
 	@echo "  - make index       - Crawl portals and services and create index.csv"
 	@echo "  - make prepare     - Prepare for commit"
-	@echo "  - make composer    - Run 'composer update' in /scripts"
 	@echo ""
 
-composer:
-	cd scripts && composer update
-
 index:
 	rm -i -f ./scripts/var/index.db
 	rm -i -f ./scripts/var/temp_files/*
 	php ./scripts/bin/renew_index.php
 
+install:
+	cd scripts && composer update
+	mkdir scripts/var/downloaded_rdf_files
+
 prepare:
 	cd scripts && vendor/bin/php-cs-fixer fix
 	cd scripts && vendor/bin/phpstan

scripts/src/TemporaryIndex.php

@@ -93,6 +93,9 @@ public function getEntryDataAsArray(string $iri): array|null
      */
     public function hasEntry(string $iri): bool
     {
+        // to avoid IRIs such as https://w3id.org/AIRO and https://w3id.org/airo considered different
+        $iri = strtolower($iri);
+
         $stmt = $this->temporaryIndexDb->prepare('SELECT ontology_iri FROM entry WHERE ontology_iri = ?');
         $stmt->execute([$iri]);
         foreach ($stmt->getIterator() as $entry) {