polybar/doc/conf.py

# -*- coding: utf-8 -*-
#
# Configuration file for the Sphinx documentation builder.
#
# This file does only contain a selection of the most common options. For a
# full list see the documentation:
# https://www.sphinx-doc.org/en/master/config

# -- Path setup --------------------------------------------------------------

# 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.
#
import os
from pathlib import Path
import datetime
from typing import List
from docutils.nodes import Node
from sphinx.domains.changeset import VersionChange
import packaging.version

def get_version():
  """
  Searches for the version.txt file and extracts the version from it

  Searches up the directory tree from the conf.py file because depending on the
  build method, the conf.py file will be at a different location (because it is
  configured by cmake)
  """
  current_path = Path(__file__).parent
  while current_path != current_path.parent:
    candidate = current_path / "version.txt"
    if candidate.exists():
      with open(candidate, "r") as f:
        for line in f.readlines():
          if not line.startswith("#"):
            return packaging.version.parse(line)
    current_path = current_path.parent



# -- Project information -----------------------------------------------------

project = 'Polybar User Manual'
copyright = '2016-{}, Michael Carlberg & contributors'.format(
    datetime.datetime.now().year
  )
author = 'Polybar Team'

# is whether we are on readthedocs.io
on_rtd = os.environ.get('READTHEDOCS', None) == 'True'

if on_rtd:
  # On readthedocs, cmake isn't run so the version string isn't available
  version = os.environ.get('READTHEDOCS_VERSION', None)
else:
  # The short X.Y version
  version = '@APP_VERSION@'

# The full version, including alpha/beta/rc tags
release = version

# The version from the version.txt file. Since we are not always first
# configured by cmake, we don't necessarily have access to the current version
# number
version_txt = get_version()

# Set path to documentation
if on_rtd:
  # On readthedocs conf.py is already in the doc folder
  doc_path = '.'
else:
  # In all other builds conf.py is configured with cmake and put into the
  # build folder.
  doc_path = '@doc_path@'

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

# If your documentation needs a minimal Sphinx version, state it here.
#
# needs_sphinx = '1.0'

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

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

# 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 pattern also affects html_static_path and html_extra_path.
exclude_patterns = []

# The name of the Pygments (syntax highlighting) style to use.
pygments_style = None

highlight_language = 'none'

smartquotes = False


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

# The theme to use for HTML and HTML Help pages.  See the documentation for
# a list of builtin themes.
#
if on_rtd or os.environ.get('USE_RTD_THEME', '0') == '1':
  html_theme = 'sphinx_rtd_theme'
else:
  html_theme = 'alabaster'

# 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 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 = [doc_path + '/_static']

# Custom sidebar templates, must be a dictionary that maps document names
# to template names.
#
# The default sidebars (for documents that don't match any pattern) are
# defined by theme itself.  Builtin themes are using these templates by
# default: ``['localtoc.html', 'relations.html', 'sourcelink.html',
# 'searchbox.html']``.
#
# html_sidebars = {}


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

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


# -- 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, 'polybar.tex', 'polybar Documentation',
     'Polybar Team', 'manual'),
]


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

# One entry per manual page. List of tuples
# (source start file, name, description, authors, manual section).
man_pages = [
    ('man/polybar.1', 'polybar', 'A fast and easy-to-use tool status bar', [], 1),
    ('man/polybar.5', 'polybar', 'configuration file for polybar(1)', [], 5)
]

# -- 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, 'polybar', 'polybar Documentation',
     author, 'polybar', 'One line description of project.',
     'Miscellaneous'),
]


# -- Options for Epub output -------------------------------------------------

# Bibliographic Dublin Core info.
epub_title = project

# The unique identifier of the text. This can be a ISBN number
# or the project homepage.
#
# epub_identifier = ''

# A unique identification for the text.
#
# epub_uid = ''

# A list of files that should not be packed into the epub file.
epub_exclude_files = ['search.html']

# The 'versionadded' and 'versionchanged' directives are overridden.
suppress_warnings = ['app.add_directive']

def setup(app):
  app.add_directive('deprecated', VersionDirective)
  app.add_directive('versionadded', VersionDirective)
  app.add_directive('versionchanged', VersionDirective)

class VersionDirective(VersionChange):
  """
  Overwrites the Sphinx directive for versionchanged, versionadded, and
  deprecated and adds an unreleased tag to versions that are not yet released
  """
  def run(self) -> List[Node]:
    directive_version = packaging.version.parse(self.arguments[0])

    if directive_version > version_txt:
      self.arguments[0] += " (unreleased)"

    return super().run()