Search and activate virtualenv in current directory or parent directories

virtualenv-activate.sh

activate() {
    local path_="$PWD"
    while [[ "$path_" != "/" ]]; do
        if [[ -e "$path_/Pipfile" ]]; then
            echo "Pipfile found in $path_"
            pipenv shell
            return 0
        elif [[ -e "$path_/env/bin/activate" ]]; then
            echo "virtual env found in $path_"
            source "$path_/env/bin/activate"
            return 0
        elif [[ -e "$path_/venv/bin/activate" ]]; then
            echo "virtual env found in $path_"
            source "$path_/venv/bin/activate"
            return 0
        elif [[ -e "$path_/virtualenv/bin/activate" ]]; then
            echo "virtual env found in $path_"
            source "$path_/virtualenv/bin/activate"
            return 0
        else
            path_="$(dirname "$path_")"
        fi
    done
    echo -e "\033[31;1mvirtualenv not found\033[0m" >/dev/stderr
    return 1
}