Allow render_docs.py tool to be run on any directory

docs/conf.py

@@ -3,7 +3,8 @@
 import sys, os
 
 # Import OpenHatch version
-sys.path.insert(0,'..')
+project_path = os.path.join(os.path.dirname(os.path.abspath(__file__)),'..')
+sys.path.insert(0,project_path)
 from setup import __version__
 
 # The suffix of source filenames.

tools/render_docs.py

@@ -0,0 +1,26 @@
+"""Generate html documentation"""
+
+__requires__ = 'Sphinx>=1.1.2'
+
+import sys,os,re
+from pkg_resources import load_entry_point
+
+# Allow this script to find its doc config resource
+docs_path = os.path.join(os.path.dirname(os.path.abspath(__file__)),'../docs')
+sys.path.insert(0,docs_path)
+
+import conf
+
+def main(argv=None):
+    if argv:
+        sys.argv = argv
+    # Generate documentation
+    return load_entry_point(__requires__, 'console_scripts',
+        'sphinx-build')()
+
+if __name__ == "__main__":
+
+    # generate rendered html on the docs/html directory.
+    os.chdir(docs_path)
+    sys.exit(main(['generate_docs.py','-b','html','-d','_temp','.','html']))
+