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use-direnv.md

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Use direnv

As a developper, it can be better not to think too much about setting right env variables as you enter a project. direnv aims at providing a solution.

As a quick guide as an openfoodfacts developper:

  • install direnv on your system using usual package manager
  • in your .bashrc add: 
    # direnv
eval "$(direnv hook bash)"
    you have adapt the direnv line according to what you use, see direnv doc
  • In your project directory add a file, where you superseed variables from .env that you wan't to
echo "setting up docker-compose env"
export DOCKER_BUILDKIT=1
export USER_UID=${UID}
export USER_UID=$(id -g)
  • in project directory, run direnv allow .
  • in a new shell:
    • go in project directory
    • you should have direnv trigger and load your variables