[PATCH v4 2/5] doc: Add Sphinx config to build pdf version of guides

@@ -1,5 +1,5 @@
 #   BSD LICENSE
-#   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+#   Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
 #   All rights reserved.
 #
 #   Redistribution and use in source and binary forms, with or without

@@ -29,11 +29,53 @@
 #   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 import subprocess
+from sphinx.highlighting import PygmentsBridge
+from pygments.formatters.latex import LatexFormatter
 
 project = 'DPDK'
 
-copyright = '2014, Intel'
+copyright = '2015, Intel'
 
-version = subprocess.check_output(["make","-sRrC","../../", "showversion"])
+version = subprocess.check_output(['make', '-sRrC', '../../', 'showversion'])
+release = version
 
 master_doc = 'index'
+
+# Latex directives to be included directly in the latex/pdf docs.
+latex_preamble = r"""
+\usepackage[utf8]{inputenc}
+\usepackage{DejaVuSansMono}
+\usepackage[T1]{fontenc}
+\usepackage{helvet}
+\renewcommand{\familydefault}{\sfdefault}
+
+\RecustomVerbatimEnvironment{Verbatim}{Verbatim}{xleftmargin=5mm}
+"""
+
+# Configuration for the latex/pdf docs.
+latex_elements = {
+    'papersize': 'a4paper',
+    'pointsize': '11pt',
+    'preamble': latex_preamble}
+
+latex_documents = [
+    ('index',
+     'dpdk_doc.tex',
+     '',
+     '',
+     'manual')]
+
+
+# Temp class to override the default Latex formatter in order to modify the
+# code/verbatim blocks.
+class CustomLatexFormatter(LatexFormatter):
+
+    def __init__(self, **options):
+
+        super(CustomLatexFormatter, self).__init__(**options)
+
+        # Use the second smallest font size for code/verbatim blocks.
+        self.verboptions = r'formatcom=\footnotesize'
+
+# Replace the default latex formatter.
+PygmentsBridge.latex_formatter = CustomLatexFormatter