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Introduction

This theme is adapted from PyTorch Sphinx Theme, with more configurations allowed.

Getting Started

Add dependencies to requirements.txt,

-e git+https://github.com/open-mmlab/pytorch_sphinx_theme.git#egg=pytorch_sphinx_theme
sphinx_copybutton

In docs/conf.py:

import pytorch_sphinx_theme

html_theme = 'pytorch_sphinx_theme'
html_theme_path = [pytorch_sphinx_theme.get_html_theme_path()]

# Ignore >>> when copying code
copybutton_prompt_text = r'>>> |\.\.\. '
copybutton_prompt_is_regexp = True

Header Logo

The header logo is OpenMMLab by default. Each repo should customize the logo by overriding the provided css class.

We suggest putting all the html resources to docs/_static. First put the logo to docs/_static/images/logo.png, then write the following snippet to docs/_static/css/readthedocs.css:

.header-logo {
    background-image: url("../images/logo.png");
    background-size: 110px 40px;
    height: 40px;
    width: 110px;
}

Here, you are recommended to fix the height to 40px and scale the width according to the logo's aspect ratio. The latest thing to do is to tell Sphinx the location of these resources by adding the following lines to docs/conf.py:

html_static_path = ['_static']
html_css_files = ['css/readthedocs.css']

Header Customization

This theme variant also allows users to customize the header, such as the logo url and the navigation menu, in a pythonic way. They are all configurable options in html_theme_options in docs/conf.py.

Here is an example config covering all available options:

html_theme_options = {
    # The target url that the logo directs to. Unset to do nothing
    'logo_url': 'https://mmocr.readthedocs.io/en/latest/',
    # "menu" is a list of dictionaries where you can specify the content and the 
    # behavior of each item in the menu. Each item can either be a link or a
    # dropdown menu containing a list of links.
    'menu': [
        # A link
        {
            'name': 'GitHub',
            'url': 'https://github.com/open-mmlab/'
        }, 
        # A dropdown menu
        {
            'name': 'Projects',
            'children': [
                # A vanilla dropdown item
                {
                    'name': 'MMCV',
                    'url': 'https://github.com/open-mmlab/mmcv',
                },
                # A dropdown item with a description
                {
                    'name': 'MMDetection',
                    'url': 'https://github.com/open-mmlab/mmdetection',
                    'description': 'Object detection toolbox and benchmark'
                },
            ], 
            # Optional, determining whether this dropdown menu will always be
            # highlighted. 
            'active': True,
        },
    ],
    # For shared menu: If your project is a part of OpenMMLab's project and 
    # you would like to append Docs and OpenMMLab section to the right
    # of the menu, you can specify menu_lang to choose the language of
    # shared contents. Available options are 'en' and 'cn'. Any other
    # strings will fall back to 'en'.
    'menu_lang':
    'en',
}

PyTorch Sphinx Theme

Sphinx theme for PyTorch Docs and PyTorch Tutorials based on the Read the Docs Sphinx Theme.

Local Development

Run python setup:

python setup.py install

and install the dependencies using pip install -r docs/requirements.txt

In the root directory install the package.json:

# node version 8.4.0
yarn install

If you have npm installed then run:

npm install
  • If you want to see generated documentation for docs/demo then create .env.json file and make it empty json file. Means .env.json file will contain
{}

Run grunt to build the html site and enable live reloading of the demo app at localhost:1919:

grunt
  • If you want to specify the project folder (docs or tutorial for which you want to see docs generated) then you need to specify it into .env.json file:
{
    "DOCS_DIR": "docs/",
    "TUTORIALS_DIR": "path/to/tutorial/directory"
}

Run grunt to build the html site for docs:

grunt --project=docs

and to build the html site for tutorial:

grunt --project=tutorials

The resulting site is a demo.

Testing your changes and submitting a PR

When you are ready to submit a PR with your changes you can first test that your changes have been applied correctly against either the PyTorch Docs or Tutorials repo:

  1. Run the grunt build task on your branch and commit the build to Github.
  2. In your local docs or tutorials repo, remove any existing pytorch_sphinx_theme packages in the src folder (there should be a pip-delete-this-directory.txt file there)
  3. In requirements.txt replace the existing git link with a link pointing to your commit or branch, e.g. -e git+git://github.com/{ your repo }/pytorch_sphinx_theme.git@{ your commit hash }#egg=pytorch_sphinx_theme
  4. Install the requirements pip install -r requirements.txt
  5. Remove the current build. In the docs this is make clean, tutorials is make clean-cache
  6. Build the static site. In the docs this is make html, tutorials is make html-noplot
  7. Open the site and look around. In the docs open docs/build/html/index.html, in the tutorials open _build/html.index.html

If your changes have been applied successfully, remove the build commit from your branch and submit your PR.

Publishing the theme

Before the new changes are visible in the theme the maintainer will need to run the build process:

grunt build

Once that is successful commit the change to Github.

Developing locally against PyTorch Docs and Tutorials

To be able to modify and preview the theme locally against the PyTorch Docs and/or the PyTorch Tutorials first clone the repositories:

Then follow the instructions in each repository to make the docs.

Once the docs have been successfully generated you should be able to run the following to create an html build.

Docs

# in ./docs
make html

Tutorials

# root directory
make html

Once these are successful, navigate to the conf.py file in each project. In the Docs these are at ./docs/source. The Tutorials one can be found in the root directory.

In conf.py change the html theme to pytorch_sphinx_theme and point the html theme path to this repo's local folder, which will end up looking something like:

html_theme = 'pytorch_sphinx_theme'
html_theme_path = ["../../../pytorch_sphinx_theme"]

Next create a file .env.json in the root of this repo with some keys/values referencing the local folders of the Docs and Tutorials repos:

{
  "TUTORIALS_DIR": "../tutorials",
  "DOCS_DIR": "../pytorch/docs/source"
}

You can then build the Docs or Tutorials by running

grunt --project=docs

or

grunt --project=tutorials

These will generate a live-reloaded local build for the respective projects available at localhost:1919.

Note that while live reloading works these two projects are hefty and will take a few seconds to build and reload, especially the Docs.

Built-in Stylesheets and Fonts

There are a couple of stylesheets and fonts inside the Docs and Tutorials repos themselves meant to override the existing theme. To ensure the most accurate styles we should comment out those files until the maintainers of those repos remove them:

Docs

# ./docs/source/conf.py

html_context = {
    # 'css_files': [
    #     'https://fonts.googleapis.com/css?family=Lato',
    #     '_static/css/pytorch_theme.css'
    # ],
}

Tutorials

# ./conf.py

# app.add_stylesheet('css/pytorch_theme.css')
# app.add_stylesheet('https://fonts.googleapis.com/css?family=Lato')

Top/Mobile Navigation

The top navigation and mobile menu expect an "active" state for one of the menu items. To ensure that either "Docs" or "Tutorials" is marked as active, set the following config value in the respective conf.py, where {project} is either "docs" or "tutorials".

html_theme_options = {
  ...
  'pytorch_project': {project}
  ...
}

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