lava-cactus 1.4.0

Static site generation and deployment.

LavaCactus

• What is LavaCactus
• Examples
• Super quick tutorial
• Contribute
• Extended guide

What is LavaCactus

LavaCactus is the static site generator (SSG) based on Cactus ported to use with python 3.11 and django 4

The original library work with Python 2.6, 2.7, 3.4 and 3.5 and django<2.0

Now it works on python 3.8-3.11

What is Cactus

Cactus is a simple but powerful static website generator using Python and the Django template system. Cactus also makes it easy to develop locally and deploy your site to S3 directly. It works great for company, portfolio, personal, support websites and blogs.

What is new in LavaCactus

• LavaCactus work with python 3.11 (3.8-3.11) and django 4.0
• LavaCactus can make structure for multilanguage sites
• LavaCactus has GitHub action to publish build on GitHub pages

Examples

• https://lavacactus.craftsman.lol - LavaCactus app site and base template example
• https://craftsman.lol - quill craftsman about website
• https://findsimilar.org - FindSimilar open source project website (multi-language example)

Super quick tutorial

Install LavaCactus from pypi

pip install lava-cactus

If you saw no errors, you can now generate a new project

cactus create my-new-project

Where my-new-project is the project directory

cd my-new-project

After that you can change your site with django templates. After that just build to create static pages

cactus build

To start editing and previewing your site type the following. Then point your browser to localhost:8000 and start editing. Cactus will automatically rebuild your project and refresh your browser on changes.

cactus serve

If you use serve your site will be work on test server and you can use /index.html - links starts with /. The other way it's to use browser and index.html static file. In this way use index.html in links (without / at the beginning).

In the Cactus project you can deploy your site on the different hosting with command deploy:

cactus deploy

In this version this functional hasn't been tested.

Contribute

You're welcome!

To get started:

• Developer Guidelines
• Developer Documentation

Extended guide

Creating a new project

You can create a new project by generating a new project structure like this. Make sure the destination folder does not exist yet.

cactus create [path]

If you did not see any errors, the path you pointed to should now look like this.

- .build                Generated site (upload this to your host)
- .github               CI/CD github action to publish your site on github pages
- locale                Instruction how to use translations if you need
- pages                 Your actual site pages
    - about.html
    - contact.html
    - error.html        A default 404 page
    - index.html
    - robots.txt
    - sitemap.xml
- plugins               A list of plugins. To enable remove disabled from the name
- static                Directory with static assets
    - css
    - fonts
    - images
    - js
- templates             Holds your django templates
    - base.html
- config.json           Configuration file

Making your site

After generating your site you can start building by adding pages to contents, which can rely on templates. So for example if you want a page /articles/2010/my-article.html you would create the file with directories in your pages folder. Then you can edit the file and use django's template features.

Building your site

When you build your site it will generate a static version in the build folder that you can upload to any host. Basically it will render each page from your pages folder, copy it over to the build folder and add all the static assets to it so it becomes a self contained website. You can build your site like this:

cd [your-cactus-path]
cactus build

Your rendered website can now be found in the (hidden) [path]/.build folder. Cactus can also run a small webserver to preview your site and update it when you make any changes. This is really handy when developing to get live visual feedback.

You can run it like this:

cactus serve

Linking and contexts

Cactus makes it easy to relatively link to pages and static assets inside your project by using the template tags {% static %} and {% url %}. For example if you are at page /blog/2011/Jan/my-article.html and would like to link to /contact.html you would write the following:

<a href="{% url '/contact.html' %}">Contact</a>

Just use the URL you would normally use: don't forget the leading slash.

Templates

Cactus uses the Django templates. They should be very similar to other templating systems and have some nice capabilities like inheritance. In a nutshell: a variable looks like this {{ name }} and a tag like this {% block title %}Welcome{% endblock %}. You can read the full documentation at the django site.

Enabling Plugins

To enable a plugin for your site, change the file name from [PLUGIN].disabled.py to [PLUGIN].py.

Internationalization

Using internationalization with LavaCactus

To enable internationalization for your project:

1. Add a use_translate key to your configuration file
2. Add default_language key to your configuration file with main language. For example default_language="en"
3. Add other_languages key to your configuration file with the list of the other languages. For example other_languages=["ua", "ru"]
4. Mark strings for translation in your site (using {% trans %})
5. Put {% load i18n %} at the top of template with trans tags
6. Run cactus messages:make
7. Edit the .po file that was created with translations.
8. Run cactus build to create multilanguage site structure

Deploying

Cactus can deploy your website directly to S3, all you need are your Amazon credentials and a bucket name. Cactus remembers these in a configuration file name config.json to make future deploys painless. The secret key is stored securely in the Keychain or similar services on other OSs.

cactus deploy

After deploying you can visit the website directly. Cactus also makes sure all your text files are compressed and adds caching headers.

Extras

Modify config.json to set a custom blog path, default author name, or date pattern used to parse metadata. The defaults are:

"blog": {
    "path": "blog",
    "author": "Unknown",
    "date-format": "%d-%m-%Y"
}

YAML Variables

By default you can declare variables to be included above each page, for example:

test_text: Lorem Ipsum

<p>{{ test_text }}</p>

You can declare the variables using YAML instead. Just surround the block with the --- and ... Document Separators. Then the objects and arrays will be available inside the templates:

---
header_text: Lorem Ipsum
custom_object:
  name: Lorem
  description: Ipsum
custom_array:
  -
    name: lorem
  -
    name: ipsum
...

{% for item in custom_array %}
  <p>{{ header_text }}: {{ item.name }}</p>
{% endfor %}

<p>{{ custom_object.name }} | {{ custom_object.description }}</p>

The PyYAML library is used for this functionality.

Asset pipeline

Cactus comes with an asset pipeline for your static files. If you'd like to use it, make sure you use the {% static %} template tag to link to your static assets: they might be renamed in the process.

Fingerprinting

Modify config.json, and add the extensions you want to be fingerprinting:

"fingerprint": [
    "js",
    "css"
],

This lets you enable caching with long expiration dates. When a file changes, its name will reflect the change. Great for when you use a CDN.

Optimization

Modify config.json, and add the extensions you want to be optimizing:

"optimize": [
    "js",
    "css"
],

By default, Cactus will use:

• YUI for CSS minification
• Closure compiler for JS minification (YUI is built-in too, so you can use it!)

Check out plugins/static_optimizes.py in your project to understand how this works. It's very easy to add your own optimizers!

Site URL

If you would like for your sitemap to have absolute paths you need to add a site-url key to your config.json

You can enable this by adding modifying your configuration and adding:

"site-url": "http://yoursite.com",

Note that you need to do this if you want your sitemap to be valid for Google Webmaster Tools.

"Pretty" URLs

If you would like to not have ".html" in your URLs, Cactus can rewrite those for you, and make "/my-page.html" look appear as "/my-page/", by creating the "/my-page/index.html" file.

You can enable this by adding modifying your configuration and adding:

"prettify": true

Note that if you're going to use this, you should definitely set your "Meta canonical" to the URL you're using so as to not hurt your search rankings:

<link rel="canonical" href="{{ CURRENT_PAGE.absolute_final_url }}" />

Nameserver configuration

To set up a hosted zone and generate the correct nameserver records for your domain, make sure your bucket is a valid domain name, and run:

cactus domain:setup

Cactus will return with a set of nameservers that you can then enter with your registrar. To see the list again run:

cactus domain:list

If your domain is 'naked' (eg. without www), Cactus will add create an extra bucket that redirects the www variant of your domain to your naked domain (so www.lavacactus.com to cactus.com). All the above is Amazon only for now.

Extra files

Cactus will auto generate a robots.txt and sitemap.xml file for you based on your pages.

This will help bots to index your pages for Google and Bing for example.