From 519224d9fc97f1f8d88d8552fb4cb4bc5161a92c Mon Sep 17 00:00:00 2001
From: david <david>
Date: Tue, 11 Dec 2001 19:27:37 +0000
Subject: [PATCH] Modified initial property parsing order to be more intuitive.
  It now works like this:

1. Parse preferences.xml, which will usually specify a default
aircraft using the /sim/aircraft property.

2. If /sim/aircraft is specified and not empty, parse the properties
in $FG_ROOT/Aircraft/{/sim/aircraft}-set.xml to set up a default
aircraft.

3. During command-line parsing, whenever the --aircraft option appears
set /sim/aircraft appropriately and parse the properties in
$FG_ROOT/Aircraft/{/sim/aircraft}-set.xml.  Any --config, --prop, or
--aircraft options afterwards will take precedence.
---
 src/Main/fg_init.cxx | 20 ++++++++++++++++++++
 src/Main/options.cxx |  3 +--
 2 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/src/Main/fg_init.cxx b/src/Main/fg_init.cxx
index 9917c989c..2f0aedac4 100644
--- a/src/Main/fg_init.cxx
+++ b/src/Main/fg_init.cxx
@@ -232,6 +232,26 @@ bool fgInitConfig ( int argc, char **argv ) {
     }
     SG_LOG(SG_INPUT, SG_INFO, "Finished Reading global preferences");
 
+    // Read the default aircraft config file.
+    string aircraft = fgGetString("/sim/aircraft", "");
+    if (aircraft.size() > 0) {
+      SGPath aircraft_path(globals->get_fg_root());
+      aircraft_path.append("Aircraft");
+      aircraft_path.append(aircraft);
+      aircraft_path.concat("-set.xml");
+      SG_LOG(SG_INPUT, SG_INFO, "Reading default aircraft: " << aircraft);
+      try {
+	readProperties(props_path.str(), globals->get_props());
+      } catch (const sg_exception &e) {
+	string message = "Error reading default aircraft: ";
+	message += e.getFormattedMessage();
+	SG_LOG(SG_INPUT, SG_ALERT, message);
+	exit(2);
+      }
+    } else {
+      SG_LOG(SG_INPUT, SG_ALERT, "No default aircraft specified");
+    }
+
     // Attempt to locate and parse the various config files in order
     // from least precidence to greatest precidence
 
diff --git a/src/Main/options.cxx b/src/Main/options.cxx
index d640ffe2e..44aae7246 100644
--- a/src/Main/options.cxx
+++ b/src/Main/options.cxx
@@ -909,8 +909,7 @@ parse_option (const string& arg)
         apath.append( arg.substr(11) );
         apath.concat( "-set.xml" );
         try {
-            SGPropertyNode *sim = fgGetNode("/sim");
-            readProperties( apath.str(), sim );
+            readProperties( apath.str(), globals->get_props() );
         } catch (const sg_exception &e) {
             string message = "Error loading aircraft file: ";
             message += e.getFormattedMessage();
-- 
2.39.5