direnvrc

# required for things to work - copied directly from direnv
direnv_layout_dir() {
  echo "${direnv_layout_dir:-$PWD/.direnv}"
}

########## https://github.com/direnv/direnv/pull/376

# Usage: layout virtualenv [options] [-- [virtualenv-options]]
# opts]
#
# Creates and loads a virtualenv environment under
# "$direnv_layout_dir/python-$python_version".
# This forces the installation of any egg into the project's sub-folder.
#
# Options:
# -v <virtualenv-bin>: specifies the name of the virtualenv executable (default: virtualenv)
# -p <python-bin>: specifies the name of the python executable (default: python)

layout_virtualenv() {
  local opt
  local python_bin=python
  local python_version
  local virtualenv_bin=virtualenv

  while getopts ":p:v:" opt; do
    case "${opt}" in
      p)
        python_bin=${OPTARG}
        ;;
      v)
        virtualenv_bin=${OPTARG}
        ;;
      *)
        log_error "unknown option ${opt}"
        echo
        echo "Usage: layout virtualenv [-p PYTHON_BIN] [-v VIRTUALENV_BIN]"
        return 1
        ;;
    esac
  done
  shift $((OPTIND - 1))

  ##

  unset PYTHONHOME # why?

  python_version=$("$python_bin" -c "import platform as p;print(p.python_version())")
  if [[ -z $python_version ]]; then
    log_error "Could not find python's version"
    return 1
  fi

  export VIRTUAL_ENV=$(direnv_layout_dir)/python-$python_version
  PATH_add "$VIRTUAL_ENV/bin"

  # auto-create
  if [[ ! -d $VIRTUAL_ENV ]]; then
    "$virtualenv_bin" "--python=$python_bin" "$@" "$VIRTUAL_ENV"
  fi
}

# Usage: layout python <python_exe>
#
# Creates and loads a virtualenv environment under
# "$direnv_layout_dir/python-$python_version".
# This forces the installation of any egg into the project's sub-folder.
#
# It's possible to specify the python executable if you want to use different
# versions of python.
#
layout_python() {
  local python=${1:-python}
  [[ $# -gt 0 ]] && shift
  layout_virtualenv -p $python "$@"
}

# Usage: layout python2
#
# A shortcut for $(layout virtualenv -p python2)
#
layout_python2() {
  layout_virtualenv -p python2 "$@"
}

# Usage: layout python3
#
# A shortcut for $(layout virtualenv -p python3)
#
layout_python3() {
  layout_virtualenv -p python3 "$@"
}