fix(main): Exit on unrecognized positional arg

src/components/command_line.cpp

@@ -86,7 +86,7 @@ namespace command_line {
    * Test if a positional argument is defined at given index
    */
   bool parser::has(size_t index) const {
-    return m_posargs.size() >= std::max(1_z, index);
+    return m_posargs.size() > index;
   }
 
   /**
@@ -103,7 +103,7 @@ namespace command_line {
    * Get the positional argument at given index
    */
   string parser::get(size_t index) const {
-    return has(index)  ? m_posargs[std::max(1_z, index) - 1] : "";
+    return has(index) ? m_posargs[index] : "";
   }
 
   /**

src/main.cpp

@@ -98,7 +98,11 @@ int main(int argc, char** argv) {
     string confpath;
 
     // Make sure a bar name is passed in
-    if (!cli->has(1)) {
+    if (!cli->has(0)) {
+      cli->usage();
+      return EXIT_FAILURE;
+    } else if (cli->has(1)) {
+      fprintf(stderr, "Unrecognized argument \"%s\"\n", cli->get(1).c_str());
       cli->usage();
       return EXIT_FAILURE;
     }