+ add the --verbose|-v option to kiwix-index

src/indexer/kiwix-index.cpp

@@ -1,31 +1,73 @@
+#include <getopt.h>
+#include <unistd.h>
 #include <kiwix/indexer.h>
 
-int main(int argc, char **argv) {
-  
-  /* Check if we have enough arguments */
-  if (argc < 3) {
-    cout << "Usage: kiwix-index ZIM_PATH INDEX_PATH" << endl;
+void usage() {
+    cout << "Usage: kiwix-index [--verbose|-v] ZIM_PATH INDEX_PATH" << endl;
     exit(1);
 }
 
+int main(int argc, char **argv) {
+
   /* Init the variables */
-  char *zimFilePath = argv[1];
-  char *xapianDirectoryPath = argv[2];
+  char *zimFilePath = NULL;
+  char *xapianDirectoryPath = NULL;
+  bool verboseFlag = false;
+  int option_index = 0;
   kiwix::Indexer *indexer = NULL;
 
+  /* Argument parsing */
+  while (42) {
+
+    static struct option long_options[] = {
+      {"verbose", no_argument, 0, 'v'},
+      {0, 0, 0, 0}
+    };
+    
+    int c = getopt_long(argc, argv, "v", long_options, &option_index);
+
+    if (c != -1) {
+
+      switch (c) {
+	case 'v':
+	  verboseFlag = true;
+	  break;
+      }
+    } else {
+      if (optind + option_index < argc) {
+	if (zimFilePath == NULL) {
+	  zimFilePath = argv[optind + option_index];
+	} else if (xapianDirectoryPath == NULL) {
+	  xapianDirectoryPath = argv[optind + option_index];
+	} else {
+	  usage();
+	}
+      } else {
+	break;
+      }
+      option_index++;
+    }
+    
+  }
+
+  /* Check if we have enough arguments */
+  if (zimFilePath == NULL || xapianDirectoryPath == NULL) {
+    usage();
+  }
+
   /* Try to prepare the indexing */
   try {
     indexer = new kiwix::Indexer(zimFilePath, xapianDirectoryPath);
   } catch (...) {
-    cout << "Unable to index '" << zimFilePath << "'." << endl;
+    cerr << "Unable to index '" << zimFilePath << "'." << endl;
     exit(1);
   }
 
   /* Start the indexing */
   if (indexer != NULL) {
-    while (indexer->indexNextPercent()) {};
+    while (indexer->indexNextPercent(verboseFlag)) {};
   } else {
-    cout << "Unable instanciate the Kiwix indexer." << endl;
+    cerr << "Unable instanciate the Kiwix indexer." << endl;
     exit(1);
   }