Installation

These are two possible ways of installing and working with mermithid.

Virtual environment installation

One can install mermithid on one’s machine using a virtual environment: this allows to keep the system relatively clean. However, mermithid uses C++ librairies (Cicada and Phylloxera) that need to be built beforehand.

Cicada and Phylloxera need to be installed in a sub directory:

mkdir build
cd build
cmake ..
make -j3
make -j3 install

These libraries need to be added to your PYTHONPATH:

echo "export PYTHONPATH=${PWD}/build:$PYTHONPATH" >> ~/.bash_profile

Inside your virtual environement, install mermithid:

source ~/path/to/the/virtual/environment/bin/activate # activate the virtual environement
echo $PYTHONPATH # make sure the build folder above is in this path
pip install . --process-dependency-links

(The –process-dependency-links is here to install the right morpho version from github.)

Docker installation

Docker provides a uniform test bed for development and bug testing. Please use this environment to testing/resolving bugs.

1. Install Docker (Desktop version): https://docs.docker.com/engine/installation/
2. Clone and pull the latest master version of morpho
3. Inside the morpho folder, execute `docker-compose run mermithid`. The container prompter should appear at the end of the installation. A directory (`mermithid_share`) should be created in your home and mounted under the `/host` folder: you can modify this by editing the docker-compose file. Once inside the container, run source /setup.sh to be able to access morpho and mermithid libraries.
4. When reinstalling, you can remove the image using `docker rmi mermithid_mermithid`