#
# PyTorch documentation build configuration file, created by
# sphinx-quickstart on Fri Dec 23 13:31:47 2016.
#
# This file is execfile()d with the current directory set to its
# containing dir.
#
# Note that not all possible configuration values are present in this
# autogenerated file.
#
# All configuration values have a default; values that are commented out
# serve to show the default.

# If extensions (or modules to document with autodoc) are in another directory,
# add these directories to sys.path here. If the directory is relative to the
# documentation root, use os.path.abspath to make it absolute, like shown here.
#
# NB: C++ API doc generation using doxygen / breathe / exhale is currently only
# enabled on nightlies (and not trunk or on PRs) due to OOM errors in CI.
# See https://github.com/pytorch/pytorch/issues/79992.

import os
import textwrap


# sys.path.insert(0, os.path.abspath('.'))


# -- General configuration ------------------------------------------------

# If your documentation needs a minimal Sphinx version, state it here.
#
needs_sphinx = "3.1.2"
run_doxygen = os.environ.get("RUN_DOXYGEN", "false") == "true"

# Add any Sphinx extension module names here, as strings. They can be
# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
# ones.
extensions = [
    "sphinx.ext.intersphinx",
] + (["breathe", "exhale"] if run_doxygen else [])

intersphinx_mapping = {"pytorch": ("https://pytorch.org/docs/main", None)}

# Setup absolute paths for communicating with breathe / exhale where
# items are expected / should be trimmed by.
# This file is {repo_root}/docs/cpp/source/conf.py
this_file_dir = os.path.abspath(os.path.dirname(__file__))
doxygen_xml_dir = os.path.join(
    os.path.dirname(this_file_dir),  # {repo_root}/docs/cpp
    "build",  # {repo_root}/docs/cpp/build
    "xml",  # {repo_root}/docs/cpp/build/xml
)
repo_root = os.path.dirname(  # {repo_root}
    os.path.dirname(  # {repo_root}/docs
        os.path.dirname(  # {repo_root}/docs/cpp
            this_file_dir  # {repo_root}/docs/cpp/source
        )
    )
)

breathe_projects = {"PyTorch": doxygen_xml_dir}
breathe_default_project = "PyTorch"

# Setup the exhale extension
exhale_args = {
    ############################################################################
    # These arguments are required.                                            #
    ############################################################################
    "containmentFolder": "./api",
    "rootFileName": "library_root.rst",
    "rootFileTitle": "Library API",
    "doxygenStripFromPath": repo_root,
    ############################################################################
    # Suggested optional arguments.                                            #
    ############################################################################
    "createTreeView": True,
    "exhaleExecutesDoxygen": True,
    "exhaleUseDoxyfile": True,
    "verboseBuild": True,
    ############################################################################
    # HTML Theme specific configurations.                                      #
    ############################################################################
    # Fix broken Sphinx RTD Theme 'Edit on GitHub' links
    # Search for 'Edit on GitHub' on the FAQ:
    #     http://exhale.readthedocs.io/en/latest/faq.html
    "pageLevelConfigMeta": ":github_url: https://github.com/pytorch/pytorch",
    ############################################################################
    # Individual page layout example configuration.                            #
    ############################################################################
    # Example of adding contents directives on custom kinds with custom title
    "contentsTitle": "Page Contents",
    "kindsWithContentsDirectives": ["class", "file", "namespace", "struct"],
    # Exclude PIMPL files from class hierarchy tree and namespace pages.
    "listingExclude": [r".*Impl$"],
    ############################################################################
    # Main library page layout example configuration.                          #
    ############################################################################
    "afterTitleDescription": textwrap.dedent(
        """
        Welcome to the developer reference for the PyTorch C++ API.
    """
    ),
}

# Tell sphinx what the primary language being documented is.
primary_domain = "cpp"

# Tell sphinx what the pygments highlight language should be.
highlight_language = "cpp"

# Add any paths that contain templates here, relative to this directory.
# templates_path = ['_templates']

# The suffix(es) of source filenames.
# You can specify multiple suffix as a list of string:
#
# source_suffix = ['.rst', '.md']
source_suffix = ".rst"

# The master toctree document.
master_doc = "index"

# General information about the project.
project = "PyTorch"
copyright = "2022, PyTorch Contributors"
author = "PyTorch Contributors"

# The version info for the project you're documenting, acts as replacement for
# |version| and |release|, also used in various other places throughout the
# built documents.
#
# The short X.Y version.
# TODO: change to [:2] at v1.0
version = "main"
# The full version, including alpha/beta/rc tags.
# TODO: verify this works as expected
release = "main"

# The language for content autogenerated by Sphinx. Refer to documentation
# for a list of supported languages.
#
# This is also used if you do content translation via gettext catalogs.
# Usually you set "language" from the command line for these cases.
language = None

# List of patterns, relative to source directory, that match files and
# directories to ignore when looking for source files.
# This patterns also effect to html_static_path and html_extra_path
exclude_patterns = []

# The name of the Pygments (syntax highlighting) style to use.
pygments_style = "sphinx"

# If true, `todo` and `todoList` produce output, else they produce nothing.
todo_include_todos = True

# -- Options for HTML output ----------------------------------------------

# The theme to use for HTML and HTML Help pages.  See the documentation for
# a list of builtin themes.
#
html_theme = "pytorch_sphinx_theme"

# Theme options are theme-specific and customize the look and feel of a theme
# further.  For a list of options available for each theme, see the
# documentation.
#
html_theme_options = {
    "canonical_url": "https://pytorch.org/docs/stable/",
    "pytorch_project": "docs",
    "collapse_navigation": False,
    "display_version": True,
    "logo_only": True,
}

# NOTE: sharing python docs resources
html_logo = os.path.join(
    repo_root, "docs", "source", "_static", "img", "pytorch-logo-dark-unstable.png"
)

# Add any paths that contain custom static files (such as style sheets) here,
# relative to this directory. They are copied after the builtin static files,
# so a file named "default.css" will overwrite the builtin "default.css".
# NOTE: sharing python docs resources
html_static_path = [os.path.join(repo_root, "docs", "cpp", "source", "_static")]


# Called automatically by Sphinx, making this `conf.py` an "extension".
def setup(app):
    # NOTE: in Sphinx 1.8+ `html_css_files` is an official configuration value
    # and can be moved outside of this function (and the setup(app) function
    # can be deleted).
    html_css_files = ["cpp_theme.css"]

    # In Sphinx 1.8 it was renamed to `add_css_file`, 1.7 and prior it is
    # `add_stylesheet` (deprecated in 1.8).
    add_css = getattr(app, "add_css_file", app.add_stylesheet)
    for css_file in html_css_files:
        add_css(css_file)


# -- Options for HTMLHelp output ------------------------------------------

# Output file base name for HTML help builder.
# htmlhelp_basename = 'PyTorchdoc'


# -- Options for LaTeX output ---------------------------------------------

latex_elements = {
    # The paper size ('letterpaper' or 'a4paper').
    #
    # 'papersize': 'letterpaper',
    # The font size ('10pt', '11pt' or '12pt').
    #
    # 'pointsize': '10pt',
    # Additional stuff for the LaTeX preamble.
    #
    # 'preamble': '',
    # Latex figure (float) alignment
    #
    # 'figure_align': 'htbp',
}

# Grouping the document tree into LaTeX files. List of tuples
# (source start file, target name, title,
#  author, documentclass [howto, manual, or own class]).
latex_documents = [
    (
        master_doc,
        "pytorch.tex",
        "PyTorch Documentation",
        "Torch Contributors",
        "manual",
    ),
]


# -- Options for manual page output ---------------------------------------

# One entry per manual page. List of tuples
# (source start file, name, description, authors, manual section).
man_pages = [(master_doc, "PyTorch", "PyTorch Documentation", [author], 1)]


# -- Options for Texinfo output -------------------------------------------

# Grouping the document tree into Texinfo files. List of tuples
# (source start file, target name, title, author,
#  dir menu entry, description, category)
texinfo_documents = [
    (
        master_doc,
        "PyTorch",
        "PyTorch Documentation",
        author,
        "PyTorch",
        "One line description of project.",
        "Miscellaneous",
    ),
]