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+# BSD LICENSE
+# Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in
+# the documentation and/or other materials provided with the
+# distribution.
+# * Neither the name of Intel Corporation nor the names of its
+# contributors may be used to endorse or promote products derived
+# from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import subprocess
+from docutils import nodes
+from distutils.version import LooseVersion
+from sphinx import __version__ as sphinx_version
+from sphinx.highlighting import PygmentsBridge
+from pygments.formatters.latex import LatexFormatter
+
+project = 'Data Plane Development Kit'
+
+if LooseVersion(sphinx_version) >= LooseVersion('1.3.1'):
+ html_theme = "sphinx_rtd_theme"
+html_logo = '../logo/DPDK_logo_vertical_rev_small.png'
+latex_logo = '../logo/DPDK_logo_horizontal_tag.png'
+html_add_permalinks = ""
+html_show_copyright = False
+highlight_language = 'none'
+
+version = subprocess.check_output(['make', '-sRrC', '../../', 'showversion']).decode('utf-8').rstrip()
+release = version
+
+master_doc = 'index'
+
+# Figures, tables and code-blocks automatically numbered if they have caption
+numfig = True
+
+latex_documents = [
+ ('index',
+ 'doc.tex',
+ '',
+ '',
+ 'manual')
+]
+
+# Latex directives to be included directly in the latex/pdf docs.
+latex_preamble = r"""
+\usepackage[utf8]{inputenc}
+\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',
+ # remove blank pages
+ 'classoptions': ',openany,oneside',
+ 'babel': '\\usepackage[english]{babel}',
+ # customize Latex formatting
+ 'preamble': latex_preamble
+}
+
+# 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
+
+######## :numref: fallback ########
+# The following hook functions add some simple handling for the :numref:
+# directive for Sphinx versions prior to 1.3.1. The functions replace the
+# :numref: reference with a link to the target (for all Sphinx doc types).
+# It doesn't try to label figures/tables.
+
+def numref_role(reftype, rawtext, text, lineno, inliner):
+ """
+ Add a Sphinx role to handle numref references. Note, we can't convert
+ the link here because the doctree isn't build and the target information
+ isn't available.
+ """
+ # Add an identifier to distinguish numref from other references.
+ newnode = nodes.reference('',
+ '',
+ refuri='_local_numref_#%s' % text,
+ internal=True)
+ return [newnode], []
+
+def process_numref(app, doctree, from_docname):
+ """
+ Process the numref nodes once the doctree has been built and prior to
+ writing the files. The processing involves replacing the numref with a
+ link plus text to indicate if it is a Figure or Table link.
+ """
+
+ # Iterate over the reference nodes in the doctree.
+ for node in doctree.traverse(nodes.reference):
+ target = node.get('refuri', '')
+
+ # Look for numref nodes.
+ if target.startswith('_local_numref_#'):
+ target = target.replace('_local_numref_#', '')
+
+ # Get the target label and link information from the Sphinx env.
+ data = app.builder.env.domains['std'].data
+ docname, label, _ = data['labels'].get(target, ('', '', ''))
+ relative_url = app.builder.get_relative_uri(from_docname, docname)
+
+ # Add a text label to the link.
+ if target.startswith('figure'):
+ caption = 'Figure'
+ elif target.startswith('table'):
+ caption = 'Table'
+ else:
+ caption = 'Link'
+
+ # New reference node with the updated link information.
+ newnode = nodes.reference('',
+ caption,
+ refuri='%s#%s' % (relative_url, label),
+ internal=True)
+ node.replace_self(newnode)
+
+def setup(app):
+ if LooseVersion(sphinx_version) < LooseVersion('1.3.1'):
+ print('Upgrade sphinx to version >= 1.3.1 for '
+ 'improved Figure/Table number handling.')
+ # Add a role to handle :numref: references.
+ app.add_role('numref', numref_role)
+ # Process the numref references once the doctree has been created.
+ app.connect('doctree-resolved', process_numref)