sphinx/doc/builders.rst

.. _builders:

Available builders
==================

.. module:: sphinx.builders
   :synopsis: Available built-in builder classes.

These are the built-in Sphinx builders.  More builders can be added by
:ref:`extensions <extensions>`.

The builder's "name" must be given to the **-b** command-line option of
:program:`sphinx-build` to select a builder.


.. module:: sphinx.builders.html
.. class:: StandaloneHTMLBuilder

   This is the standard HTML builder.  Its output is a directory with HTML
   files, complete with style sheets and optionally the reST sources.  There are
   quite a few configuration values that customize the output of this builder,
   see the chapter :ref:`html-options` for details.

   .. autoattribute:: name

   .. autoattribute:: format

   .. autoattribute:: supported_image_types

.. class:: DirectoryHTMLBuilder

   This is a subclass of the standard HTML builder.  Its output is a directory
   with HTML files, where each file is called ``index.html`` and placed in a
   subdirectory named like its page name.  For example, the document
   ``markup/rest.rst`` will not result in an output file ``markup/rest.html``,
   but ``markup/rest/index.html``.  When generating links between pages, the
   ``index.html`` is omitted, so that the URL would look like ``markup/rest/``.

   .. autoattribute:: name

   .. autoattribute:: format

   .. autoattribute:: supported_image_types

   .. versionadded:: 0.6

.. class:: SingleFileHTMLBuilder

   This is an HTML builder that combines the whole project in one output file.
   (Obviously this only works with smaller projects.)  The file is named like
   the master document.  No indices will be generated.

   .. autoattribute:: name

   .. autoattribute:: format

   .. autoattribute:: supported_image_types

   .. versionadded:: 1.0

.. module:: sphinx.builders.htmlhelp
.. class:: HTMLHelpBuilder

   This builder produces the same output as the standalone HTML builder, but
   also generates HTML Help support files that allow the Microsoft HTML Help
   Workshop to compile them into a CHM file.

   .. autoattribute:: name

   .. autoattribute:: format

   .. autoattribute:: supported_image_types

.. module:: sphinx.builders.qthelp
.. class:: QtHelpBuilder

   This builder produces the same output as the standalone HTML builder, but
   also generates `Qt help`_ collection support files that allow
   the Qt collection generator to compile them.

   .. autoattribute:: name

   .. autoattribute:: format

   .. autoattribute:: supported_image_types

   .. _Qt help: http://doc.qt.io/qt-4.8/qthelp-framework.html

.. module:: sphinx.builders.applehelp
.. class:: AppleHelpBuilder

   This builder produces an Apple Help Book based on the same output as the
   standalone HTML builder.

   If the source directory contains any ``.lproj`` folders, the one
   corresponding to the selected language will have its contents merged with
   the generated output.  These folders will be ignored by all other
   documentation types.

   In order to generate a valid help book, this builder requires the command
   line tool :program:`hiutil`, which is only available on Mac OS X 10.6 and
   above.  You can disable the indexing step by setting
   :confval:`applehelp_disable_external_tools` to ``True``, in which case the
   output will not be valid until :program:`hiutil` has been run on all of the
   ``.lproj`` folders within the bundle.

   .. autoattribute:: name

   .. autoattribute:: format

   .. autoattribute:: supported_image_types

   .. versionadded:: 1.3

.. module:: sphinx.builders.devhelp
.. class:: DevhelpBuilder

   This builder produces the same output as the standalone HTML builder, but
   also generates `GNOME Devhelp <https://wiki.gnome.org/Apps/Devhelp>`__
   support file that allows the GNOME Devhelp reader to view them.

   .. autoattribute:: name

   .. autoattribute:: format

   .. autoattribute:: supported_image_types

.. module:: sphinx.builders.epub3
.. class:: Epub3Builder

   This builder produces the same output as the standalone HTML builder, but
   also generates an *epub* file for ebook readers.  See :ref:`epub-faq` for
   details about it.  For definition of the epub format, have a look at
   `<http://idpf.org/epub>`_ or `<https://en.wikipedia.org/wiki/EPUB>`_.
   The builder creates *EPUB 3* files.

   .. autoattribute:: name

   .. autoattribute:: format

   .. autoattribute:: supported_image_types

   .. versionadded:: 1.4

   .. versionchanged:: 1.5

      Since Sphinx-1.5, the epub3 builder is used for the default builder of epub.

.. module:: sphinx.builders.latex
.. class:: LaTeXBuilder

   This builder produces a bunch of LaTeX files in the output directory.  You
   have to specify which documents are to be included in which LaTeX files via
   the :confval:`latex_documents` configuration value.  There are a few
   configuration values that customize the output of this builder, see the
   chapter :ref:`latex-options` for details.

   .. note::

      The produced LaTeX file uses several LaTeX packages that may not be
      present in a "minimal" TeX distribution installation. For example, on
      Ubuntu, the following packages need to be installed for successful PDF
      builds:

      * texlive-latex-recommended
      * texlive-fonts-recommended
      * texlive-latex-extra
      * latexmk (for ``make latexpdf``)

      Sphinx will use ``xcolor.sty`` if present: recent Ubuntu distributions
      have ``xcolor.sty`` included in latex-recommended, earlier ones have it
      in latex-xcolor. Unicode engines will need texlive-luatex or
      texlive-xetex.

      The testing of Sphinx LaTeX is done on Ubuntu trusty with the above
      mentioned packages, which are from a TeXLive 2013 snapshot dated
      February 2014.

      .. versionchanged:: 1.6
         Formerly, testing had been done for some years on Ubuntu precise
         (based on TeXLive 2009).
      .. versionchanged:: 1.6
         Use of ``latexmk`` on GNU/Linux or Mac OS X.

      Since 1.6, ``make latexpdf`` (or ``make -C "<builddir>/latex"`` after a
      ``sphinx-build`` run) uses ``latexmk`` (on GNU/Linux and Mac OS X).
      It invokes it with option ``-f`` which attempts to complete targets
      even in case of LaTeX processing errors. This can be overridden via
      ``LATEXMKOPTS`` variable, for example:

      .. code-block:: console

         make latexpdf LATEXMKOPTS=""

      The ``pdflatex`` calls themselves obey the ``LATEXOPTS`` variable whose
      default is ``--interaction=nonstopmode`` (same as ``-interaction
      nonstopmode``.) In order to stop the
      compilation on first error one can use ``--halt-on-error``.

      Example:

      .. code-block:: console

         make latexpdf LATEXMKOPTS="-silent" LATEXOPTS="--halt-on-error"

      In case the first ``pdflatex`` run aborts with an error, this will stop
      further ``latexmk`` processing (no ``-f`` option). The console output
      will be kept to a bare minimum during target processing (``-silent``).

   .. autoattribute:: name

   .. autoattribute:: format

   .. autoattribute:: supported_image_types

Note that a direct PDF builder using ReportLab is available in `rst2pdf
<https://github.com/rst2pdf/rst2pdf>`_ version 0.12 or greater.  You need to add
``'rst2pdf.pdfbuilder'`` to your :confval:`extensions` to enable it, its name is
``pdf``.  Refer to the `rst2pdf manual <http://ralsina.me/static/manual.pdf>`_
for details.

.. module:: sphinx.builders.text
.. class:: TextBuilder

   This builder produces a text file for each reST file -- this is almost the
   same as the reST source, but with much of the markup stripped for better
   readability.

   .. autoattribute:: name

   .. autoattribute:: format

   .. autoattribute:: supported_image_types

   .. versionadded:: 0.4

.. module:: sphinx.builders.manpage
.. class:: ManualPageBuilder

   This builder produces manual pages in the groff format.  You have to specify
   which documents are to be included in which manual pages via the
   :confval:`man_pages` configuration value.

   .. autoattribute:: name

   .. autoattribute:: format

   .. autoattribute:: supported_image_types

   .. versionadded:: 1.0


.. module:: sphinx.builders.texinfo
.. class:: TexinfoBuilder

   This builder produces Texinfo files that can be processed into Info files by
   the :program:`makeinfo` program.  You have to specify which documents are to
   be included in which Texinfo files via the :confval:`texinfo_documents`
   configuration value.

   The Info format is the basis of the on-line help system used by GNU Emacs and
   the terminal-based program :program:`info`.  See :ref:`texinfo-faq` for more
   details.  The Texinfo format is the official documentation system used by the
   GNU project.  More information on Texinfo can be found at
   `<http://www.gnu.org/software/texinfo/>`_.

   .. autoattribute:: name

   .. autoattribute:: format

   .. autoattribute:: supported_image_types

   .. versionadded:: 1.1


.. currentmodule:: sphinx.builders.html
.. class:: SerializingHTMLBuilder

   This builder uses a module that implements the Python serialization API
   (`pickle`, `simplejson`, `phpserialize`, and others) to dump the generated
   HTML documentation.  The pickle builder is a subclass of it.

   A concrete subclass of this builder serializing to the `PHP serialization`_
   format could look like this::

        import phpserialize

        class PHPSerializedBuilder(SerializingHTMLBuilder):
            name = 'phpserialized'
            implementation = phpserialize
            out_suffix = '.file.phpdump'
            globalcontext_filename = 'globalcontext.phpdump'
            searchindex_filename = 'searchindex.phpdump'

   .. _PHP serialization: https://pypi.python.org/pypi/phpserialize

   .. attribute:: implementation

      A module that implements `dump()`, `load()`, `dumps()` and `loads()`
      functions that conform to the functions with the same names from the
      pickle module.  Known modules implementing this interface are
      `simplejson`, `phpserialize`, `plistlib`, and others.

   .. attribute:: out_suffix

      The suffix for all regular files.

   .. attribute:: globalcontext_filename

      The filename for the file that contains the "global context".  This
      is a dict with some general configuration values such as the name
      of the project.

   .. attribute:: searchindex_filename

      The filename for the search index Sphinx generates.


   See :ref:`serialization-details` for details about the output format.

   .. versionadded:: 0.5

.. class:: PickleHTMLBuilder

   This builder produces a directory with pickle files containing mostly HTML
   fragments and TOC information, for use of a web application (or custom
   postprocessing tool) that doesn't use the standard HTML templates.

   See :ref:`serialization-details` for details about the output format.

   .. autoattribute:: name

      The old name ``web`` still works as well.

   .. autoattribute:: format

   .. autoattribute:: supported_image_types

   The file suffix is ``.fpickle``.  The global context is called
   ``globalcontext.pickle``, the search index ``searchindex.pickle``.

.. class:: JSONHTMLBuilder

   This builder produces a directory with JSON files containing mostly HTML
   fragments and TOC information, for use of a web application (or custom
   postprocessing tool) that doesn't use the standard HTML templates.

   See :ref:`serialization-details` for details about the output format.

   .. autoattribute:: name

   .. autoattribute:: format

   .. autoattribute:: supported_image_types

   The file suffix is ``.fjson``.  The global context is called
   ``globalcontext.json``, the search index ``searchindex.json``.

   .. versionadded:: 0.5

.. module:: sphinx.builders.gettext
.. class:: MessageCatalogBuilder

   This builder produces gettext-style message catalogs.  Each top-level file or
   subdirectory grows a single ``.pot`` catalog template.

   See the documentation on :ref:`intl` for further reference.

   .. autoattribute:: name

   .. autoattribute:: format

   .. autoattribute:: supported_image_types

   .. versionadded:: 1.1

.. module:: sphinx.builders.changes
.. class:: ChangesBuilder

   This builder produces an HTML overview of all :rst:dir:`versionadded`,
   :rst:dir:`versionchanged` and :rst:dir:`deprecated` directives for the
   current :confval:`version`.  This is useful to generate a ChangeLog file, for
   example.

   .. autoattribute:: name

   .. autoattribute:: format

   .. autoattribute:: supported_image_types

.. module:: sphinx.builders.dummy
.. class:: DummyBuilder

   This builder produces no output.  The input is only parsed and checked for
   consistency.  This is useful for linting purposes.

   .. autoattribute:: name

   .. autoattribute:: supported_image_types

   .. versionadded:: 1.4

.. module:: sphinx.builders.linkcheck
.. class:: CheckExternalLinksBuilder

   This builder scans all documents for external links, tries to open them with
   :mod:`urllib2`, and writes an overview which ones are broken and redirected
   to standard output and to :file:`output.txt` in the output directory.

   .. autoattribute:: name

   .. autoattribute:: format

   .. autoattribute:: supported_image_types

.. module:: sphinx.builders.xml
.. class:: XMLBuilder

   This builder produces Docutils-native XML files.  The output can be
   transformed with standard XML tools such as XSLT processors into arbitrary
   final forms.

   .. autoattribute:: name

   .. autoattribute:: format

   .. autoattribute:: supported_image_types

   .. versionadded:: 1.2

.. class:: PseudoXMLBuilder

   This builder is used for debugging the Sphinx/Docutils "Reader to Transform
   to Writer" pipeline. It produces compact pretty-printed "pseudo-XML", files
   where nesting is indicated by indentation (no end-tags). External
   attributes for all elements are output, and internal attributes for any
   leftover "pending" elements are also given.

   .. autoattribute:: name

   .. autoattribute:: format

   .. autoattribute:: supported_image_types

   .. versionadded:: 1.2


Built-in Sphinx extensions that offer more builders are:

* :mod:`~sphinx.ext.doctest`
* :mod:`~sphinx.ext.coverage`


.. _serialization-details:

Serialization builder details
-----------------------------

All serialization builders outputs one file per source file and a few special
files.  They also copy the reST source files in the directory ``_sources``
under the output directory.

The :class:`.PickleHTMLBuilder` is a builtin subclass that implements the pickle
serialization interface.

The files per source file have the extensions of
:attr:`~.SerializingHTMLBuilder.out_suffix`, and are arranged in directories
just as the source files are.  They unserialize to a dictionary (or dictionary
like structure) with these keys:

``body``
   The HTML "body" (that is, the HTML rendering of the source file), as rendered
   by the HTML translator.

``title``
   The title of the document, as HTML (may contain markup).

``toc``
   The table of contents for the file, rendered as an HTML ``<ul>``.

``display_toc``
   A boolean that is ``True`` if the ``toc`` contains more than one entry.

``current_page_name``
   The document name of the current file.

``parents``, ``prev`` and ``next``
   Information about related chapters in the TOC tree.  Each relation is a
   dictionary with the keys ``link`` (HREF for the relation) and ``title``
   (title of the related document, as HTML).  ``parents`` is a list of
   relations, while ``prev`` and ``next`` are a single relation.

``sourcename``
   The name of the source file under ``_sources``.

The special files are located in the root output directory.  They are:

:attr:`.SerializingHTMLBuilder.globalcontext_filename`
   A pickled dict with these keys:

   ``project``, ``copyright``, ``release``, ``version``
      The same values as given in the configuration file.

   ``style``
      :confval:`html_style`.

   ``last_updated``
      Date of last build.

   ``builder``
      Name of the used builder, in the case of pickles this is always
      ``'pickle'``.

   ``titles``
      A dictionary of all documents' titles, as HTML strings.

:attr:`.SerializingHTMLBuilder.searchindex_filename`
   An index that can be used for searching the documentation.  It is a pickled
   list with these entries:

   * A list of indexed docnames.
   * A list of document titles, as HTML strings, in the same order as the first
     list.
   * A dict mapping word roots (processed by an English-language stemmer) to a
     list of integers, which are indices into the first list.

``environment.pickle``
   The build environment.  This is always a pickle file, independent of the
   builder and a copy of the environment that was used when the builder was
   started.

   .. todo:: Document common members.

   Unlike the other pickle files this pickle file requires that the ``sphinx``
   package is available on unpickling.