conf.py

# Scrapy documentation build configuration file, created by
# sphinx-quickstart on Mon Nov 24 12:02:52 2008.
#
# This file is execfile()d with the current directory set to its containing dir.
#
# The contents of this file are pickled, so don't put values in the namespace
# that aren't pickleable (module imports are okay, they're removed automatically).
#
# All configuration values have a default; values that are commented out
# serve to show the default.

import sys
from datetime import datetime
from pathlib import Path

# If your extensions are in another directory, add it here. If the directory
# is relative to the documentation root, use Path.absolute to make it absolute.
sys.path.append(str(Path(__file__).parent / "_ext"))
sys.path.insert(0, str(Path(__file__).parent.parent))


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

# Add any Sphinx extension module names here, as strings. They can be extensions
# coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
extensions = [
    "hoverxref.extension",
    "notfound.extension",
    "scrapydocs",
    "sphinx.ext.autodoc",
    "sphinx.ext.coverage",
    "sphinx.ext.intersphinx",
    "sphinx.ext.viewcode",
]

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

# The suffix of source filenames.
source_suffix = ".rst"

# The encoding of source files.
# source_encoding = 'utf-8'

# The master toctree document.
master_doc = "index"

# General information about the project.
project = "Scrapy"
copyright = f"2008–{datetime.now().year}, Scrapy developers"

# 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.
try:
    import scrapy

    version = ".".join(map(str, scrapy.version_info[:2]))
    release = scrapy.__version__
except ImportError:
    version = ""
    release = ""

# The language for content autogenerated by Sphinx. Refer to documentation
# for a list of supported languages.
language = "en"

# There are two options for replacing |today|: either, you set today to some
# non-false value, then it is used:
# today = ''
# Else, today_fmt is used as the format for a strftime call.
# today_fmt = '%B %d, %Y'

# List of documents that shouldn't be included in the build.
# unused_docs = []

exclude_patterns = ["build"]

# List of directories, relative to source directory, that shouldn't be searched
# for source files.
exclude_trees = [".build"]

# The reST default role (used for this markup: `text`) to use for all documents.
# default_role = None

# If true, '()' will be appended to :func: etc. cross-reference text.
# add_function_parentheses = True

# If true, the current module name will be prepended to all description
# unit titles (such as .. function::).
# add_module_names = True

# If true, sectionauthor and moduleauthor directives will be shown in the
# output. They are ignored by default.
# show_authors = False

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

# List of Sphinx warnings that will not be raised
suppress_warnings = ["epub.unknown_project_files"]


# 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 = "sphinx_rtd_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 = {}

# Add any paths that contain custom themes here, relative to this directory.
# Add path to the RTD explicitly to robustify builds (otherwise might
# fail in a clean Debian build env)
import sphinx_rtd_theme

html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]

# The style sheet to use for HTML and HTML Help pages. A file of that name
# must exist either in Sphinx' static/ path, or in one of the custom paths
# given in html_static_path.
# html_style = 'scrapydoc.css'

# The name for this set of Sphinx documents.  If None, it defaults to
# "<project> v<release> documentation".
# html_title = None

# A shorter title for the navigation bar.  Default is the same as html_title.
# html_short_title = None

# The name of an image file (relative to this directory) to place at the top
# of the sidebar.
# html_logo = None

# The name of an image file (within the static path) to use as favicon of the
# docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
# pixels large.
# html_favicon = None

# 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".
html_static_path = ["_static"]

# If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
# using the given strftime format.
html_last_updated_fmt = "%b %d, %Y"

# Custom sidebar templates, maps document names to template names.
# html_sidebars = {}

# Additional templates that should be rendered to pages, maps page names to
# template names.
# html_additional_pages = {}

# If false, no module index is generated.
# html_use_modindex = True

# If false, no index is generated.
# html_use_index = True

# If true, the index is split into individual pages for each letter.
# html_split_index = False

# If true, the reST sources are included in the HTML build as _sources/<name>.
html_copy_source = True

# If true, an OpenSearch description file will be output, and all pages will
# contain a <link> tag referring to it.  The value of this option must be the
# base URL from which the finished HTML is served.
# html_use_opensearch = ''

# If nonempty, this is the file name suffix for HTML files (e.g. ".xhtml").
# html_file_suffix = ''

# Output file base name for HTML help builder.
htmlhelp_basename = "Scrapydoc"

html_css_files = [
    "custom.css",
]


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

# The paper size ('letter' or 'a4').
# latex_paper_size = 'letter'

# The font size ('10pt', '11pt' or '12pt').
# latex_font_size = '10pt'

# Grouping the document tree into LaTeX files. List of tuples
# (source start file, target name, title, author, document class [howto/manual]).
latex_documents = [
    ("index", "Scrapy.tex", "Scrapy Documentation", "Scrapy developers", "manual"),
]

# The name of an image file (relative to this directory) to place at the top of
# the title page.
# latex_logo = None

# For "manual" documents, if this is true, then toplevel headings are parts,
# not chapters.
# latex_use_parts = False

# Additional stuff for the LaTeX preamble.
# latex_preamble = ''

# Documents to append as an appendix to all manuals.
# latex_appendices = []

# If false, no module index is generated.
# latex_use_modindex = True


# Options for the linkcheck builder
# ---------------------------------

# A list of regular expressions that match URIs that should not be checked when
# doing a linkcheck build.
linkcheck_ignore = [
    "http://localhost:\d+",
    "http://hg.scrapy.org",
    "http://directory.google.com/",
]


# Options for the Coverage extension
# ----------------------------------
coverage_ignore_pyobjects = [
    # Contract’s add_pre_hook and add_post_hook are not documented because
    # they should be transparent to contract developers, for whom pre_hook and
    # post_hook should be the actual concern.
    r"\bContract\.add_(pre|post)_hook$",
    # ContractsManager is an internal class, developers are not expected to
    # interact with it directly in any way.
    r"\bContractsManager\b$",
    # For default contracts we only want to document their general purpose in
    # their __init__ method, the methods they reimplement to achieve that purpose
    # should be irrelevant to developers using those contracts.
    r"\w+Contract\.(adjust_request_args|(pre|post)_process)$",
    # Methods of downloader middlewares are not documented, only the classes
    # themselves, since downloader middlewares are controlled through Scrapy
    # settings.
    r"^scrapy\.downloadermiddlewares\.\w*?\.(\w*?Middleware|DownloaderStats)\.",
    # Base classes of downloader middlewares are implementation details that
    # are not meant for users.
    r"^scrapy\.downloadermiddlewares\.\w*?\.Base\w*?Middleware",
    # Private exception used by the command-line interface implementation.
    r"^scrapy\.exceptions\.UsageError",
    # Methods of BaseItemExporter subclasses are only documented in
    # BaseItemExporter.
    r"^scrapy\.exporters\.(?!BaseItemExporter\b)\w*?\.",
    # Extension behavior is only modified through settings. Methods of
    # extension classes, as well as helper functions, are implementation
    # details that are not documented.
    r"^scrapy\.extensions\.[a-z]\w*?\.[A-Z]\w*?\.",  # methods
    r"^scrapy\.extensions\.[a-z]\w*?\.[a-z]",  # helper functions
    # Never documented before, and deprecated now.
    r"^scrapy\.linkextractors\.FilteringLinkExtractor$",
    # Implementation detail of LxmlLinkExtractor
    r"^scrapy\.linkextractors\.lxmlhtml\.LxmlParserLinkExtractor",
]


# Options for the InterSphinx extension
# -------------------------------------

intersphinx_mapping = {
    "attrs": ("https://www.attrs.org/en/stable/", None),
    "coverage": ("https://coverage.readthedocs.io/en/stable", None),
    "cryptography": ("https://cryptography.io/en/latest/", None),
    "cssselect": ("https://cssselect.readthedocs.io/en/latest", None),
    "itemloaders": ("https://itemloaders.readthedocs.io/en/latest/", None),
    "pytest": ("https://docs.pytest.org/en/latest", None),
    "python": ("https://docs.python.org/3", None),
    "sphinx": ("https://www.sphinx-doc.org/en/master", None),
    "tox": ("https://tox.wiki/en/latest/", None),
    "twisted": ("https://docs.twisted.org/en/stable/", None),
    "twistedapi": ("https://docs.twisted.org/en/stable/api/", None),
    "w3lib": ("https://w3lib.readthedocs.io/en/latest", None),
}
intersphinx_disabled_reftypes = []


# Options for sphinx-hoverxref options
# ------------------------------------

hoverxref_auto_ref = True
hoverxref_role_types = {
    "class": "tooltip",
    "command": "tooltip",
    "confval": "tooltip",
    "hoverxref": "tooltip",
    "mod": "tooltip",
    "ref": "tooltip",
    "reqmeta": "tooltip",
    "setting": "tooltip",
    "signal": "tooltip",
}
hoverxref_roles = ["command", "reqmeta", "setting", "signal"]


def setup(app):
    app.connect("autodoc-skip-member", maybe_skip_member)


def maybe_skip_member(app, what, name, obj, skip, options):
    if not skip:
        # autodocs was generating a text "alias of" for the following members
        # https://github.com/sphinx-doc/sphinx/issues/4422
        return name in {"default_item_class", "default_selector_class"}
    return skip