custom_conf.py

import datetime

# Custom configuration for the Sphinx documentation builder.
# All configuration specific to your project should be done in this file.
#
# The file is included in the common conf.py configuration file.
# You can modify any of the settings below or add any configuration that
# is not covered by the common conf.py file.
#
# For the full list of built-in configuration values, see the documentation:
# https://www.sphinx-doc.org/en/master/usage/configuration.html

############################################################
### Project information
############################################################

# Product name
project = 'Ubuntu installation'
author = 'Canonical Group Ltd'

# Uncomment if your product uses release numbers
# release = '1.0'

# The default value uses the current year as the copyright year.
#
# For static works, it is common to provide the year of first publication.
# Another option is to give the first year and the current year
# for documentation that is often changed, e.g. 2022–2023 (note the en-dash).
#
# A way to check a GitHub repo's creation date is to obtain a classic GitHub
# token with 'repo' permissions here: https://github.com/settings/tokens
# Next, use 'curl' and 'jq' to extract the date from the GitHub API's output:
#
# curl -H 'Authorization: token <TOKEN>' \
#   -H 'Accept: application/vnd.github.v3.raw' \
#   https://api.github.com/repos/canonical/<REPO> | jq '.created_at'

copyright = '%s, %s' % (datetime.date.today().year, author)

## Open Graph configuration - defines what is displayed in the website preview
# The URL of the documentation output
ogp_site_url = 'https://canonical-subiquity.readthedocs-hosted.com/'
# The documentation website name (usually the same as the product name)
ogp_site_name = 'Ubuntu Installation Guide'
# An image or logo that is used in the preview
ogp_image = 'https://assets.ubuntu.com/v1/253da317-image-document-ubuntudocs.svg'

# Update with the favicon for your product (default is the circle of friends)
html_favicon = '.sphinx/_static/favicon.png'

# (Some settings must be part of the html_context dictionary, while others
#  are on root level. Don't move the settings.)
html_context = {

    # Change to the link to your product website (without "https://")
    'product_page': 'ubuntu.com/download',

    # Add your product tag to ".sphinx/_static" and change the path
    # here (start with "_static"), default is the circle of friends
    'product_tag': '_static/tag.png',

    # Change to the discourse instance you want to be able to link to
    # using the :discourse: metadata at the top of a file
    # (use an empty value if you don't want to link)
    'discourse': 'https://discourse.ubuntu.com/c/foundations/',

    # Change to the GitHub info for your project
    'github_url': 'https://github.com/canonical/subiquity',

    # Change to the branch for this version of the documentation
    'github_version': 'main',

    # Change to the folder that contains the documentation
    # (usually "/" or "/docs/")
    'github_folder': '/doc/',

    # Change to an empty value if your GitHub repo doesn't have issues enabled.
    # This will disable the feedback button and the issue link in the footer.
    'github_issues': 'https://bugs.launchpad.net/subiquity',

    # Controls the existence of Previous / Next buttons at the bottom of pages
    # Valid options: none, prev, next, both
    'sequential_nav': "none"
}

# If your project is on documentation.ubuntu.com, specify the project
# slug (for example, "lxd") here.
slug = ""

############################################################
### Redirects
############################################################

# Set up redirects (https://documatt.gitlab.io/sphinx-reredirects/usage.html)
# For example: 'explanation/old-name.html': '../how-to/prettify.html',

redirects = {}

############################################################
### Link checker exceptions
############################################################

# Links to ignore when checking links

linkcheck_ignore = [
    'http://127.0.0.1:8000'
    ]

# Pages on which to ignore anchors
# (This list will be appended to linkcheck_anchors_ignore_for_url)

custom_linkcheck_anchors_ignore_for_url = [
    ]

############################################################
### Additions to default configuration
############################################################

## The following settings are appended to the default configuration.
## Use them to extend the default functionality.

# Add extensions
custom_extensions = [
    'sphinx.ext.intersphinx',
    'sphinx.ext.extlinks'
]

# Add files or directories that should be excluded from processing.
custom_excludes = [
    'doc-cheat-sheet*',
    '.sphinx/venv/*',
    'README.md',
]

# Add CSS files (located in .sphinx/_static/)
custom_html_css_files = []

# Add JavaScript files (located in .sphinx/_static/)
custom_html_js_files = []

## The following settings override the default configuration.

# Specify a reST string that is included at the end of each file.
# If commented out, use the default (which pulls the reuse/links.txt
# file into each reST file).
custom_rst_epilog = '''
.. include:: /reuse/substitutions.txt
.. include:: /reuse/links.txt
'''
# By default, the documentation includes a feedback button at the top.
# You can disable it by setting the following configuration to True.
disable_feedback_button = False

############################################################
### Additional configuration
############################################################

## Add any configuration that is not covered by the common conf.py file.

intersphinx_mapping = {
    'cloud-init': (
        'https://docs.cloud-init.io/en/latest/',
         None
    ),
    'ubuntu-server': (
        'https://documentation.ubuntu.com/server/',
         None
    )
}

# The root toctree document.
root_doc = 'index'

# Sphinx-copybutton config options:
# 1) prompt to be stripped from copied code.
# 2) Set to copy all lines (not just prompt lines) to ensure multiline snippets
# can be copied even if they don't contain an EOF line.
copybutton_prompt_text = '$ '
copybutton_only_copy_prompt_lines = False

extlinks = {
    'manualpage': ( 'https://manpages.ubuntu.com/manpages/lunar/en/%s', '' )
}

# Redefine the Sphinx 'command' role to behave/render like 'literal'
from docutils.parsers.rst import roles
from sphinx.util.docutils import SphinxRole
from docutils import nodes

class CommandRole(SphinxRole):
    def run(self):
        text = self.text
        node = nodes.literal(text, text)
        return [node], []

def setup(app):
    roles.register_local_role('command', CommandRole())

# Define a custom role for package-name formatting
def pkg_role(name, rawtext, text, lineno, inliner, options={}, content=[]):
    node = nodes.literal(rawtext, text)
    return [node], []

roles.register_local_role('pkg', pkg_role)