TD-115: Throw error when config file is missing or not readable

TD-49: Log when file management fails

- Thanks to Jelle van der Waa, Ben Boeckel.

AUTHORS

@@ -10,6 +10,7 @@ The following submitted code, packages or analysis, and deserve special thanks:
   Tomas Babej
   Dirk Deimeke
   Wim Schuermann
+  Jelle van der Waa
 
 Thanks to the following, who submitted detailed bug reports and excellent
 suggestions:
@@ -18,3 +19,4 @@ suggestions:
   creatid
   Frédéric Meynadier
   Bruno Vernay
+  Ben Boeckel

ChangeLog

@@ -3,6 +3,10 @@
 
 0.1.0 () -
 
+- TD-49   Log when file management fails
+          (thanks to Ben Boeckel).
+- TD-115  Throw error when config file is missing or not readable
+          (thanks to Jelle van der Waa).
 - Added 'continue' command.
 - Added 'diagnostics' command.
 - Added 'export' command.

src/Rules.cpp

@@ -50,7 +50,14 @@ void Rules::load (const std::string& file, int nest /* = 1 */)
   if (nest == 1)
   {
     _settings = defaultSettings;
-    _original_file = File (file)._data;
+    File originalFile (file);
+    _original_file = originalFile._data;
+
+    if (! originalFile.exists ())
+      throw std::string ("ERROR: Configuration file not found.");
+
+    if (! originalFile.readable ())
+      throw std::string ("ERROR: Configuration file cannot be read (insufficient privileges).");
   }
 
   // Read the file, then parse the contents.