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SVG-Gruntenstein

A combination of the genius of others to make lean SVGs and their fallback equivalents.

Why 'Gruntenstein'?

The word 'Gruntenstein' has been used as this project is merely standing on the shoulders of giants. Nothing is original, it's merely the assembly of a number of amazing constituent parts into a seperate and hopefully useful thing. The name is therefore a nod (using someone elses head) to the fictional 'Frankenstein' of Mary Shelley's gothic novel.

What does it do?

You've made SVG assets and you need data URIs, PNG versions or both. Feck me, you're in luck...

The premise of 'SVG Gruntenstein' is to make a tiny utility on your system that can take any number of SVG graphics, optimise them (using SVGO via grunt-svgmin) and then create CSS based data URIs of them, PNG fallback graphics, CSS based data URIs of those and a fallback CSS stylesheet for the PNGs using the incredible grunticon. As an added bit of utility it uses the Grunt team's contrib-clean to enable old SVGs and their output to be easily removed.

Dependencies

'SVG Gruntenstein' uses Grunt.js and Node along with the aforementioned tools.

Warning

  • This is a command line based tool. Both for install and usage. But you're on Github so we'll assume that's OK.
  • I've installed this on OS X systems at present. No idea (yet) if it will work on Windows/Linux.

How to install

  • Download Nodejs and install it (clicky clicky GUI install).
  • If you don't already have Grunt installed you will need it. Open Terminal and run npm install -g grunt-cli.
  • Move to where you want SVG Gruntenstein to live and run git clone https://github.com/benfrain/SVG-Gruntenstein.git. You can call the folder what you want. It may make more sense to call it 'SVGoptimiser' for example.
  • Now move to the folder you have cloned this repo to and run 'npm install`. This should then auto install all the needed grunt plugin goodness.

Usage instructions

  1. Place any SVGs into the 'svgs' folder within this project.
  2. Open this folder (e.g. 'SVGoptimiser') in the Terminal
  3. If you already have a 'pngs' folder in the root run this command grunt clean. That will remove any prior PNG images
  4. Now run grunt - after a short space of time, you should see a message Done, without errors. Your assets are now created.

What 'SVG Gruntenstein' actually produces

After running this you will have a number of assets created:

  • Your original SVGs (optimised) - they can be found in the 'svgs' folder
  • Automagically generated PNGs of each SVG - they can be found in 'output/png/'
  • A CSS file containing all PNG images as data URIs (You can find the file here: 'output/icons.data.png.css')
  • A CSS file containing all SVG images as data URIs (You can find the file here: 'output/icons.data.svg.css')
  • A fallback style sheet referencing the generated PNG (in case you have to support browsers that don't like data URIs). You can find that at 'icons.fallback.css'
  • A preview HTML file showing what you created

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