For news and information about the course.

The Site uses gulp for building the site's CSS, which is written in Sass.

Gulp is based on NodeJS. The NodeJS website describes how to get Node. It is often available via package managers, like Homebrew for OS X:

brew install node

NPM (Node Package Manager) is a service which lets you download small and large packages and libraries easily. NPM is bundled with the latest Node versions.

To install all dependencies, run this while in the website directory:

npm install

After that, you should be ready to go. Note that NodeJS and gulp is only needed in order to compile Sass code. Writing plain HTML is done as usual.

The site shows the READMEs of the exercises on the front page. To update and fetch new READMEs, an import script exists. The script will additionally create a downloadable archive containing all exercises (for printing, sharing, etc.).

The import of exercises from the exercise repo is done through a Python script. It downloads the latest available exercises on the master branch. To begin, make sure you have the markdown2 package installed on your system. If it's not, it can be installed by running:

pip install markdown2

(Remember to prepend with sudo if you are not running with elevated privileges on a Unix-like system.)

The import script needs to be run from inside the scripts/ directory. In that directory, start the import by running:

python import.py

If successful, exercise files have been extracted to the exercises/ directory in the website directory. The files have also been packed into exercises.zip found in the same directory as exercises/.

The order of the exercises, as they are presented on the front page, is calculated firstly from the difficulty level specified in the README, and secondly from the order in which they are listed in the file exercises_order found in the exercise repo.

During development, it can be useful to host the site locally on your machine. (The site will not work properly if you only open index.html as a file.) A simple way to host, with Python installed, is running this while in the website directory:

python -m SimpleHTTPServer

You should now be able to test the site by visiting localhost:8000 in your browser.

The site uses GitHub Pages, so you can deploy to introprogramming.github.io with a simple git push:

git push origin master