#!/bin/bash

# This script uses these environment variables:
#
# DISABLE_COLLECTSTATIC: if not empty, inhibits execution of 'manage.py collectstatic'.

function assemble() {
  # For SCL enablement
  source .bashrc

  set -e

  echo "---> Copying application source ..."
  cp -Rf /tmp/src/* ./

  if [ -f setup.py ]; then
      echo "---> Installing application ..."
      python setup.py install --user
  elif [ -f requirements.txt ]; then
      echo "---> Installing dependencies ..."
      pip install --user -r requirements.txt
  fi

  # set permissions for any installed artifacts
  chmod -R og+rwx /opt/openshift

  set +e
  django_collectstatic
  set -e

  # remove pip temporary directory
  rm -rf /tmp/pip_build_default
}

function django_collectstatic() {
  [ -n "$DISABLE_COLLECTSTATIC" ] && return
  ! pip show -q django && return

  # Find shallowest manage.py script, either ./manage.py or <project>/manage.py
  local MANAGE_FILE=$(find . -maxdepth 2 -type f -name 'manage.py' -printf '%d\t%P\n' | sort -nk1 | cut -f2 | head -1)

  if [ ! -f "$MANAGE_FILE" ]; then
    echo "WARNING: seems that you're using Django, but we could not find a 'manage.py' file."
    echo "'manage.py collectstatic' ignored."
    return
  fi

  echo "---> Collecting Django static files ..."
  if ! python $MANAGE_FILE collectstatic --dry-run --noinput &> /dev/null; then
    echo "WARNING: could not run 'manage.py collectstatic'. To debug, run:"
    echo "    $ python $MANAGE_FILE collectstatic --noinput"
    echo "Ignore this warning if you're not serving static files with Django."
    return
  fi

  if ! python $MANAGE_FILE collectstatic --noinput  2>&1 | sed '/^Copying/d;/^$/d;/^ /d'; then
    local status=$?
    echo "ERROR: 'manage.py collectstatic' failed."
    return $status
  fi
}

assemble