post_compile

#!/bin/bash
set -e
buildpack_url=https://github.com/heroku/heroku-buildpack-python
buildpack_vsn=v210

# rebuild python if it's missing loadable sqlite extensions
if  ! python3 -msysconfig | grep enable-loadable-sqlite-extensions \
    > /dev/null; then
  PYTHON_VERSION="$(< runtime.txt)"
  git clone -b "$buildpack_vsn" "$buildpack_url" _buildpack
  export WORKSPACE_DIR="$PWD/_buildpack/builds"
  rm -f .heroku/python/bin/python   # prevent failing ln after build
  sed -i 's!figure --pre!figure --enable-loadable-sqlite-extensions --pre!' \
    "$WORKSPACE_DIR"/runtimes/python3
  "$WORKSPACE_DIR/runtimes/$PYTHON_VERSION" /app/.heroku/python/
  rm -fr _buildpack
fi

# load DB from cache
cp -R "$CACHE_DIR/.heroku/_cache" .heroku/ &> /dev/null || true
for x in .heroku/_cache/{jmdict,kanji,pitch,sentences}.sqlite3; do
  if [ ! -s "$x" ]; then rm -fr .heroku/_cache/; break; fi
done
mkdir -p .heroku/_cache
touch    .heroku/_cache/{jmdict,kanji,pitch,sentences}.sqlite3
ln -srf  .heroku/_cache/{jmdict,kanji,pitch,sentences}.sqlite3 jiten/res/

# build .so & setup DB
make
rm -fr build

# get .version (FIXME: is there no better way?)
git clone https://github.com/obfusk/jiten.git _jiten
( cd _jiten && git checkout "$SOURCE_VERSION" && make _version )
mv -v _jiten/jiten/.version jiten/
rm -fr _jiten

# save DB to cache
rm -rf "$CACHE_DIR/.heroku/_cache"
cp -R .heroku/_cache "$CACHE_DIR/.heroku/"