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Contribution Guide

You shouldn't edit the node class files (all files under diagram directory) by yourself.

Resources

Update nodes

All node classes was auto-generated from image resource files. For example, the diagram.aws.compute.EC2 class was auto-generated based on resources/aws/compute/ec2.png image resource file.

So, if you want to add new node resources or update existing node resources, you can just add or update the image files in resources/<provider>/<type>/<image>.

Images should be resized to fit a maximum of 256 pixels wide or high.

# You can do that easily with ImageMagick
convert -resize 256 my_big_image.jpg my_image.jpg

# Or FFmpeg
ffmpeg -i my_big_image.jpg -vf scale=w=256:h=256:force_original_aspect_ratio=decrease my_image.png

Then just run the ./autogen.sh to generate the added or updated node classes.

IMPORTANT NOTE: To run autogen.sh, you need round and inkscape command lines that are used for clearning the image resource filenames.

macOS users can download the inkscape via Homebrew.

Update Aliases

Some node classes have alias. For example, aws.compute.ECS class is an alias of aws.compute.ElasticContainerService class. Aliases also were auto-generated from ALIASES map in config.py.

So, if you want to add new aliases or update existing aliases, you can just add or update the ALIASES map in config.py.

Then just run the ./autogen.sh to generate the added or updated aliases.

IMPORTANT NOTE: To run autogen.sh, you need round and inkscape command lines that are used for clearning the image resource filenames.

Run Tests

python -m unittest tests/*.py -v