#!/bin/sh

set -e

## debug
if [ "$DOCKER_ABUILD_DEBUG" = "true" ]; then
  set -x
  PS4='$LINENO: '
fi

if [ "${PWD%*/aports*}" = "$PWD" ]; then
  echo "Error: expecting to be run from within an aports tree!"
  echo "Could not find '/aports' in the current path ($PWD)"
  exit 1
fi

# use branch to figure out most appropriate alpine version
if [ -z "$DOCKER_ABUILD_VERSION" ]; then
  _ABUILD_BRANCH=$(git status | head -1)
  _ABUILD_BRANCH="${_ABUILD_BRANCH##*[ /]}"
  _ABUILD_BRANCH="${_ABUILD_BRANCH%-stable}"

  case $_ABUILD_BRANCH in
    [[:digit:]].[[:digit:]] )
      _ALPINE_VERSION=$_ABUILD_BRANCH
      ;;
    * )
      _ALPINE_VERSION=edge
      ;;
  esac
else
  _ALPINE_VERSION=$DOCKER_ABUILD_VERSION
fi

_ABUILD_DIR=${HOME}/.abuild/${_ALPINE_VERSION}
_ABUILD_VOLUMES="
    -v ${HOME}/.abuild:/home/builder/.abuild
    -v ${_ABUILD_DIR}/.cache:/var/cache/apk
    -v ${_ABUILD_DIR}/.distfiles:/var/cache/distfiles
    -v ${PWD%/aports*}/aports:/home/builder/aports
    -v ${PWD%/aports*}/packages/${_ALPINE_VERSION}:/home/builder/packages
"

DOCKER="docker run -ti $_ABUILD_VOLUMES -e DOCKER_ABUILD_DEBUG $_ABUILD_ARGS"
$DOCKER --workdir /home/builder/aports/${PWD#*/aports} mor1/abuild:$_ALPINE_VERSION "$@"