From 83f6f1391401b043817696abbb7fa1fd8c26ead0 Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Tue, 13 May 2008 14:08:32 +0000
Subject: [PATCH] Added --file-cache directoryname command line option support
 to readNodeFiles(ArgumentParser&) to make it easier to specify a local file
 cache, in place of the default OSG_FILE_CACHE env var.

---
 src/osgDB/ReadFile.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/osgDB/ReadFile.cpp b/src/osgDB/ReadFile.cpp
index 8f9eeb0e1..4391fda8d 100644
--- a/src/osgDB/ReadFile.cpp
+++ b/src/osgDB/ReadFile.cpp
@@ -129,6 +129,14 @@ Node* osgDB::readNodeFiles(osg::ArgumentParser& arguments,const ReaderWriter::Op
 
     std::string filename;
 
+    while (arguments.read("--file-cache",filename))
+    {
+        std::string str("OSG_FILE_CACHE=");
+        str += filename;
+        
+        putenv(strdup((char*)str.c_str()));
+    }
+    
     while (arguments.read("--image",filename))
     {
         osg::ref_ptr<osg::Image> image = readImageFile(filename.c_str(), options);