From e2b24a7a0f2bdd690bf651b36dd554454d7a3146 Mon Sep 17 00:00:00 2001
From: stoneLeaf <owi.stoneleaf@gmail.com>
Date: Tue, 10 Apr 2012 18:07:44 +0300
Subject: [PATCH 1/2] Added a new section entitled 'A dynamic config file'. It
 explains the use of environment variables in the config file to dynamically
 retrieve parameters.

---
 docs/config.rst | 47 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/docs/config.rst b/docs/config.rst
index dac2c12..e256843 100644
--- a/docs/config.rst
+++ b/docs/config.rst
@@ -115,6 +115,53 @@ individual renders to apply to just those renders.
     See the ``sample_config.py`` file included in the repository for another
     example.
 
+A dynamic config file
+=====================
+
+It might be handy to dynamically retrieve parameters. For instance, if you
+periodically render your last map backup which is located in a timestamped
+directory, it is not convenient to edit the config file each time to fit the
+new directory name.
+
+Using environment variables, you can easily retrieve a parameter which has
+been set by, for instance, your map backup script. In this example, Overviewer is
+called from a *bash* script, but it can be done from other shell scripts and
+languages.
+
+::
+
+    ## The bash script
+    
+    # Setting up an environment variable that child processes will inherit
+    MYWORLD_DIR=/path/to/map/backup/$yourtimestamp/YourWorld
+    export MYWORLD_DIR
+    
+    # Running the Overviwer
+    overviewer.py --config=/path/to/yourConfig.py
+
+.. note::
+
+    The environment variable will only be local to the process and its child
+    processes. In this example, the Overviewer will be able to access the 
+    variable since it becomes a child process.
+
+::
+
+    ## The config file
+    
+    # Importing the os python module
+    import os
+    
+    # Retrieving the environment variable
+    worlds["My world"] = os.environ['MYWORLD_DIR']
+
+    renders["normalrender"] = {
+        "world": "My world",
+        "title": "Normal Render of My World",
+    }
+
+    outputdir = "/home/username/mcmap"
+
 Config File Specifications
 ==========================
 

From b9217e28c8f28a27e639c9144656035df3651cd6 Mon Sep 17 00:00:00 2001
From: stoneLeaf <owi.stoneleaf@gmail.com>
Date: Wed, 11 Apr 2012 00:42:43 +0300
Subject: [PATCH 2/2] Improved the 'A dynamic config file' doc section.

---
 docs/config.rst | 26 +++++++++++++++-----------
 1 file changed, 15 insertions(+), 11 deletions(-)

diff --git a/docs/config.rst b/docs/config.rst
index e256843..e9fd8a8 100644
--- a/docs/config.rst
+++ b/docs/config.rst
@@ -124,35 +124,39 @@ directory, it is not convenient to edit the config file each time to fit the
 new directory name.
 
 Using environment variables, you can easily retrieve a parameter which has
-been set by, for instance, your map backup script. In this example, Overviewer is
-called from a *bash* script, but it can be done from other shell scripts and
-languages.
+been set by, for instance, your map backup script. In this example, Overviewer
+is called from a *bash* script, but it can be done from other shell scripts
+and languages.
 
 ::
 
-    ## The bash script
+    #!/bin/bash
     
-    # Setting up an environment variable that child processes will inherit
-    MYWORLD_DIR=/path/to/map/backup/$yourtimestamp/YourWorld
+    ## Add these lines to your bash script
+    
+    # Setting up an environment variable that child processes will inherit.
+    # In this example, the map's path is not static and depends on the
+    # previously set $timestamp var.
+    MYWORLD_DIR=/path/to/map/backup/$timestamp/YourWorld
     export MYWORLD_DIR
     
-    # Running the Overviwer
+    # Running the Overviewer
     overviewer.py --config=/path/to/yourConfig.py
 
 .. note::
 
     The environment variable will only be local to the process and its child
-    processes. In this example, the Overviewer will be able to access the 
-    variable since it becomes a child process.
+    processes. The Overviewer, when run by the script, will be able to access
+    the variable since it becomes a child process.
 
 ::
 
-    ## The config file
+    ## A config file example
     
     # Importing the os python module
     import os
     
-    # Retrieving the environment variable
+    # Retrieving the environment variable set up by the bash script
     worlds["My world"] = os.environ['MYWORLD_DIR']
 
     renders["normalrender"] = {