direnvrc

realpath() {
    [[ $1 = /* ]] && echo "$1" || echo "$PWD/${1#./}"
}

layout_micromamba() {
    # Setup
    env_vars_required MAMBA_ROOT_PREFIX MAMBA_EXE
    __shell=$(basename $SHELL)
    __mamba_setup="$("$MAMBA_EXE" shell hook --shell "$__shell" --root-prefix "$MAMBA_ROOT_PREFIX" 2> /dev/null)"
    if [ $? -eq 0 ]; then
        eval "$__mamba_setup"
        micromamba activate $@
    else
        # Fallback on help from mamba activate
        ${MAMBA_EXE} activate $@
    fi
    unset __mamba_setup
    unset __shell
    unset PS1
}

layout_anaconda() {
    env_vars_required CONDA_HOME
    local ACTIVATE="${CONDA_HOME}/bin/activate"

    if [ -n "$1" ]; then
        # Explicit environment name from layout command.
        local env_name="$1"
        source $ACTIVATE ${env_name}
    elif (grep -q name: environment.yml); then
        # Detect environment name from `environment.yml` file in `.envrc` directory
        source $ACTIVATE `grep name: environment.yml | sed -e 's/name: //' | cut -d "'" -f 2 | cut -d '"' -f 2`
    else
        (>&2 echo No environment specified);
        exit 1;
    fi;
    unset PS1
}

layout_micro() {
    layout micromamba $@
}

layout_conda() {
    if has conda; then
        layout anaconda $@
    else
        layout micromamba $@
    fi
}