Helpers for zsh

helpers.sh

_git_path(){
    git rev-parse --show-toplevel 2>/dev/null
}

cd(){
    # first and foremost, change directory
    builtin cd $argv 2> /dev/null

    GIT_DIR=$(_git_path)
    VPATH=.venv
    # find a parent git directory
    # if that directory contains a virtualenv in a ".env" directory, activate it
    if [[ (
            ( -z "$VIRTUAL_ENV" || "$VIRTUAL_ENV" != "${GIT_DIR}/${VPATH}") &&
                -f "${GIT_DIR}/${VPATH}/bin/activate"
        ) ]]; then
        echo activate
        source ${GIT_DIR}/${VPATH}/bin/activate
    fi

    # deactivate an active virtualenv if not ".venv"
    if [[ (-n "$VIRTUAL_ENV" && ("$VIRTUAL_ENV" != "${gitdir}/${vpath}")) ]]
    then

        if [[ ! -f "${GIT_DIR}/${VPATH}/bin/activate" ]] ; then
            echo deactivate
            deactivate
        fi
    fi

    if [[ -f "${GIT_DIR}/shell_helpers.sh" ]]; then
        source ${GIT_DIR}/shell_helpers.sh
    fi

}