[glom] Command-line parsing: Added some checks.

[Murray Cumming <murrayc src gnome org>]

commit c743dafa405ee7f299b6dba65d9ade324408858d
Author: Murray Cumming <murrayc murrayc com>
Date:   Sun Jan 31 20:17:44 2010 +0100

    Command-line parsing: Added some checks.
    
    * glom/main.cc: Test the command-line argument filepath for existence and
    check that it's not a directory, so it fails before even showing UI.

 ChangeLog    |    7 +++++++
 glom/main.cc |   22 ++++++++++++++++++++--
 2 files changed, 27 insertions(+), 2 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index 2d33f8c..249499f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,12 @@
 2010-01-31  Murray Cumming  <murrayc murrayc com>
 
+  Command-line parsing: Added some checks.
+  
+	* glom/main.cc: Test the command-line argument filepath for existence and 
+	check that it's not a directory, so it fails before even showing UI.
+
+2010-01-31  Murray Cumming  <murrayc murrayc com>
+
   Relationships Overview: Avoid GTK+ warnings.
   
 	* glom/mode_design/relationships_overview/dialog_relationships_overview.cc:
diff --git a/glom/main.cc b/glom/main.cc
index ebdea96..52c2190 100644
--- a/glom/main.cc
+++ b/glom/main.cc
@@ -539,8 +539,26 @@ main(int argc, char* argv[])
     {
       //Get a URI (file://something) from the filepath:
       Glib::RefPtr<Gio::File> file = Gio::File::create_for_commandline_arg(input_uri);
-      if(file)
-        input_uri = file->get_uri(); 
+      
+      if(!file->query_exists())
+      {
+        std::cerr << _("Glom: The file does not exist.") << std::endl;
+        
+        std::cerr << std::endl << context.get_help() << std::endl;
+        return -1;
+      }
+      
+      const Gio::FileType file_type = file->query_file_type();
+      if(file_type == Gio::FILE_TYPE_DIRECTORY)
+      {
+        std::cerr << _("Glom: The file path is a directory instead of a file.") << std::endl;
+        
+        std::cerr << std::endl << context.get_help() << std::endl;
+        return -1;
+      }
+      
+      input_uri = file->get_uri();
+
       //std::cout << "URI = " << input_uri << std::endl;
     }