Automagic venv for fish

put_inside_config.fish

# usage:
# e       -->   create and/or activate a virtualenv, named in a way that's unique and related to the current folder
#               but stored under ~/venvs/
# e NAME  -->   create and/or activate a virtualenv with the specified name, stored under ~/venvs/

# you should replace `\/home\/fisa\/devel\/` (scaped text for `/home/fisa/devel/`) with the folder in which most 
# of your projects live, so a venv for a project /home/fisa/devel/company_x/project_y/ will be named just 
# "company_x_project_y", without the full path as part of the name. It's kind of a default prefix.

function e
    if count $argv > /dev/null
        set env_name $argv
    else
        set env_name (pwd | sed "s/\/home\/fisa\/devel\///g" | sed "s/\//_/g")
    end

    set env_dir ~/venvs/$env_name

    if not test -d $env_dir
        echo "No virtualenv named $env_name, creating a new one..."
        python3 -m venv $env_dir
        echo "Upgrading pip..."
        $env_dir/bin/pip install pip --upgrade
        echo "Done"
    end
    . $env_dir/bin/activate.fish
end