Merge pull request #666 from kiwix/implement_skip_option_2

 kiwix-serve: Skip invalid ZIM files and continue startup #659

Author: kelson42

src/man/kiwix-serve.1

@@ -88,6 +88,10 @@ Override the welcome page with a custom HTML file.
 \fB-L N, --ipConnectionLimit=N\fR
 Max number of (concurrent) connections per IP (default: infinite, recommended: >= 6).
 
+.TP
+\fB-k, --skipInvalid\fR
+Startup even when ZIM files are invalid (those will be skipped)
+
 .TP
 \fB-v, --verbose\fR
 Print debug log to STDOUT.

src/server/kiwix-serve.cpp

@@ -77,6 +77,7 @@ void usage()
             << "\t-z, --nodatealiases\tCreate URL aliases for each content by removing the date" << std::endl
             << "\t-c, --customIndex\tAdd path to custom index.html for welcome page" << std::endl
             << "\t-L, --ipConnectionLimit\tMax number of (concurrent) connections per IP (default: infinite, recommended: >= 6)" << std::endl
+            << "\t-k, --skipInvalid\tStartup even when ZIM files are invalid (those will be skipped)" << std::endl
             << std::endl
 
             << "Documentation:" << std::endl
@@ -217,6 +218,7 @@ int main(int argc, char** argv)
   unsigned int PPID = 0;
   int ipConnectionLimit = 0;
   int searchLimit = 0;
+  bool skipInvalid = false;
 
   static struct option long_options[]
       = {{"daemon", no_argument, 0, 'd'},
@@ -237,6 +239,7 @@ int main(int argc, char** argv)
          {"monitorLibrary", no_argument, 0, 'M'},
          {"ipConnectionLimit", required_argument, 0, 'L'},
          {"searchLimit", required_argument, 0, 's'},
+         {"skipInvalid", no_argument, 0, 'k'},
          {0, 0, 0, 0}};
 
   std::set<int> usedOptions;
@@ -307,6 +310,9 @@ int main(int argc, char** argv)
         case 's':
           searchLimit = atoi(optarg);
           break;
+        case 'k':
+          skipInvalid = true;
+          break;
         case '?':
           usage();
           return 2;
@@ -348,9 +354,13 @@ int main(int argc, char** argv)
     std::vector<std::string>::iterator it;
     for (it = zimPathes.begin(); it != zimPathes.end(); it++) {
       if (!manager.addBookFromPath(*it, *it, "", false)) {
-        std::cerr << "Unable to add the ZIM file '" << *it
-             << "' to the internal library." << std::endl;
-        exit(1);
+        if (skipInvalid) {
+          std::cerr << "Skipping invalid '" << *it << "' ...continuing" << std::endl;
+        } else {
+          std::cerr << "Unable to add the ZIM file '" << *it
+               << "' to the internal library." << std::endl;
+          exit(1);
+        }
       }
     }
   }