From fc667bc8ffe5a2a73d39cfc05e3f403a73bddfac Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Mon, 13 Sep 2010 17:04:22 +0200
Subject: Handle option parsing exception

---
 libcommon/common/common.cxx | 58 ++++++++++++++++++++++++++-------------------
 1 file changed, 34 insertions(+), 24 deletions(-)

(limited to 'libcommon')

diff --git a/libcommon/common/common.cxx b/libcommon/common/common.cxx
index 4d2d5f0..ed8be69 100644
--- a/libcommon/common/common.cxx
+++ b/libcommon/common/common.cxx
@@ -24,34 +24,44 @@ using namespace odb;
 auto_ptr<database>
 create_database (int argc, char* argv[], size_t max_connections)
 {
+  try
+  {
 #ifdef DB_ID_MYSQL
-  cli::argv_file_scanner scan (argc, argv, "--options-file");
-  cli::mysql_options ops (scan);
+    cli::argv_file_scanner scan (argc, argv, "--options-file");
+    cli::mysql_options ops (scan);
+
+    if (ops.help ())
+    {
+      cerr << "Usage: " << argv[0] << " [options]" << endl
+           << "Options:" << endl;
+      cli::mysql_options::print_usage (cerr);
+      exit (0);
+    }
+
+    auto_ptr<mysql::connection_factory> f;
 
-  if (ops.help ())
+    if (max_connections != 0)
+      f.reset (new mysql::connection_pool_factory (max_connections));
+
+    return auto_ptr<database> (
+      new mysql::database (
+        ops.user (),
+        ops.password_specified () ? &ops.password () : 0,
+        ops.database (),
+        ops.host (),
+        ops.port (),
+        ops.socket_specified () ? &ops.socket () : 0,
+        0,
+        f));
+#else
+    return auto_ptr<database> (0);
+#endif
+  }
+  catch (const cli::exception& e)
   {
-    cerr << "Usage: " << argv[0] << " [options]" << endl
-         << "Options:" << endl;
-    cli::mysql_options::print_usage (cerr);
-    exit (0);
+    cerr << e.what () << endl;
+    exit (1);
   }
 
-  auto_ptr<mysql::connection_factory> f;
-
-  if (max_connections != 0)
-    f.reset (new mysql::connection_pool_factory (max_connections));
-
-  return auto_ptr<database> (
-    new mysql::database (
-      ops.user (),
-      ops.password_specified () ? &ops.password () : 0,
-      ops.database (),
-      ops.host (),
-      ops.port (),
-      ops.socket_specified () ? &ops.socket () : 0,
-      0,
-      f));
-#else
   return auto_ptr<database> (0);
-#endif
 }
-- 
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