+ add the --backend argument to be able to deal also with clucene (in additon to Xapian)

src/indexer/kiwix-index.cpp

@@ -3,8 +3,10 @@
 #include <kiwix/xapianIndexer.h>
 #include <kiwix/cluceneIndexer.h>
 
+enum supportedBackend { XAPIAN, CLUCENE };
+
 void usage() {
-    cout << "Usage: kiwix-index [--verbose|-v] ZIM_PATH INDEX_PATH" << endl;
+    cout << "Usage: kiwix-index [--verbose|-v] [--backend|-b=xapian|clucene] ZIM_PATH INDEX_PATH" << endl;
     exit(1);
 }
 
@@ -12,20 +14,23 @@ int main(int argc, char **argv) {
 
   /* Init the variables */
   char *zimFilePath = NULL;
-  char *xapianDirectoryPath = NULL;
+  char *indexPath = NULL;
   bool verboseFlag = false;
   int option_index = 0;
-  kiwix::XapianIndexer *indexer = NULL;
+  supportedBackend backend = XAPIAN;
+
+  kiwix::Indexer *indexer = NULL;
 
   /* Argument parsing */
   while (42) {
 
     static struct option long_options[] = {
       {"verbose", no_argument, 0, 'v'},
+      {"backend", required_argument, 0, 'b'},
       {0, 0, 0, 0}
     };
     
-    int c = getopt_long(argc, argv, "v", long_options, &option_index);
+    int c = getopt_long(argc, argv, "vb:", long_options, &option_index);
 
     if (c != -1) {
 
@@ -33,13 +38,22 @@ int main(int argc, char **argv) {
 	case 'v':
 	  verboseFlag = true;
 	  break;
+	case 'b':
+	  if (!strcmp(optarg, "clucene")) {
+	    backend = CLUCENE;
+	  } else if (!strcmp(optarg, "xapian")) {
+	    backend = XAPIAN;
+	  } else {
+	    usage();
+	  }
+	  break;
       }
     } else {
-      if (optind + option_index < argc) {
+      if (argc > 2 && optind + option_index - 1 < argc) {
 	if (zimFilePath == NULL) {
-	  zimFilePath = argv[optind + option_index];
-	} else if (xapianDirectoryPath == NULL) {
-	  xapianDirectoryPath = argv[optind + option_index];
+	  zimFilePath = argv[optind + option_index - 1];
+	} else if (indexPath == NULL) {
+	  indexPath = argv[optind + option_index - 1];
 	} else {
 	  usage();
 	}
@@ -48,17 +62,20 @@ int main(int argc, char **argv) {
       }
       option_index++;
     }
-    
   }
 
   /* Check if we have enough arguments */
-  if (zimFilePath == NULL || xapianDirectoryPath == NULL) {
+  if (zimFilePath == NULL || indexPath == NULL) {
     usage();
   }
 
   /* Try to prepare the indexing */
   try {
-    indexer = new kiwix::XapianIndexer(zimFilePath, xapianDirectoryPath);
+    if (backend == CLUCENE) {
+      indexer = new kiwix::XapianIndexer(zimFilePath, indexPath);
+    } else {
+      indexer = new kiwix::CluceneIndexer(zimFilePath, indexPath);
+    }
   } catch (...) {
     cerr << "Unable to index '" << zimFilePath << "'." << endl;
     exit(1);