direnv – configuration for multidevstack environment for Open edX

.bashrc

## ~/.bashrc

## Hook in `direnv` for local directory environment overrides.
## https://direnv.net/docs/hook.html
eval "$(direnv hook bash)"

# https://github.com/direnv/direnv/wiki/Python#bash
show_virtual_env() {
  if [[ -n "$VIRTUAL_ENV" && -n "$DIRENV_DIR" ]]; then
    echo "($(basename $VIRTUAL_ENV))"
  fi
}
export -f show_virtual_env
PS1='$(show_virtual_env)'$PS1

.envrc – hawthorn

## /Users/ztraboo/Dev/EducateWorkforce/Repos/open-edx/devstack.ironwood/.envrc

# https://discuss.openedx.org/t/docker-devstack-multiple-releases-one-machine/1902/10

# This is handled when OPENEDX_RELEASE is set. Leaving this in for manual override.
# export COMPOSE_PROJECT_NAME=devstack-hawthorn

export DEVSTACK_WORKSPACE="$(pwd)"
export OPENEDX_RELEASE=hawthorn.master
export VIRTUAL_ENV="$(pwd)/devstack/venv"

# https://github.com/direnv/direnv/wiki/Python#virtualenv
layout python-venv

.envrc – ironwood

## /Users/ztraboo/Dev/EducateWorkforce/Repos/open-edx/devstack.ironwood/.envrc

# https://discuss.openedx.org/t/docker-devstack-multiple-releases-one-machine/1902/10

# This is handled when OPENEDX_RELEASE is set. Leaving this in for manual override.
# export COMPOSE_PROJECT_NAME=devstack-ironwood

export DEVSTACK_WORKSPACE="$(pwd)"
export OPENEDX_RELEASE=ironwood.master
export VIRTUAL_ENV="$(pwd)/devstack/venv"

# https://github.com/direnv/direnv/wiki/Python#virtualenv
layout python-venv

.envrc – master

## /Users/ztraboo/Dev/EducateWorkforce/Repos/open-edx/devstack.ironwood/.envrc

# https://discuss.openedx.org/t/docker-devstack-multiple-releases-one-machine/1902/10

# This is handled when OPENEDX_RELEASE is set. Leaving this in for manual override.
# export COMPOSE_PROJECT_NAME=devstack

export DEVSTACK_WORKSPACE="$(pwd)"
# Don't define OPENEDX_RELEASE for the `master` release.
export VIRTUAL_ENV="$(pwd)/devstack/venv"

# https://github.com/direnv/direnv/wiki/Python#virtualenv
layout python-venv

.zshrc

## ~/.zshrc

## Hook in `direnv` for local directory environment setup.
## https://direnv.net/docs/hook.html 
eval "$(direnv hook zsh)"

# https://github.com/direnv/direnv/wiki/Python#zsh
setopt PROMPT_SUBST

show_virtual_env() {
  if [[ -n "$VIRTUAL_ENV" && -n "$DIRENV_DIR" ]]; then
    echo "($(basename $VIRTUAL_ENV))"
  fi
}
PS1='$(show_virtual_env)'$PS1

direnvrc

## ~/.config/direnv/direnvrc

# https://github.com/direnv/direnv/wiki/Python#venv-stdlib-module

realpath() {
    [[ $1 = /* ]] && echo "$1" || echo "$PWD/${1#./}"
}
layout_python-venv() {
    local python=${1:-python3}
    [[ $# -gt 0 ]] && shift
    unset PYTHONHOME
    if [[ -n $VIRTUAL_ENV ]]; then
        VIRTUAL_ENV=$(realpath "${VIRTUAL_ENV}")
    else
        local python_version
        python_version=$("$python" -c "import platform; print(platform.python_version())")
        if [[ -z $python_version ]]; then
            log_error "Could not detect Python version"
            return 1
        fi
        VIRTUAL_ENV=$PWD/.direnv/python-venv-$python_version
    fi
    export VIRTUAL_ENV
    if [[ ! -d $VIRTUAL_ENV ]]; then
        log_status "no venv found; creating $VIRTUAL_ENV"
        "$python" -m venv "$VIRTUAL_ENV"
    fi

    PATH="${VIRTUAL_ENV}/bin:${PATH}"
    export PATH
}

If you get this error then you just need to issue a direnv allow to make this permission work.

ztraboo-macbookpro:devstack.hawthorn ztraboo$ zsh
direnv: error /Users/ztraboo/Dev/EducateWorkforce/Repos/open-edx/devstack.hawthorn/.envrc is blocked. Run `direnv allow` to approve its content