# This is the source.sh script. It is executed by BPM in a temporary directory when compiling a source package
# BPM Expects the source code to be extracted into the automatically created 'source' directory which can be accessed using $BPM_SOURCE
# BPM Expects the output files to be present in the automatically created 'output' directory which can be accessed using $BPM_OUTPUT

DOWNLOAD="https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/download/gs${BPM_PKG_VERSION//./}/ghostscript-${BPM_PKG_VERSION}.tar.xz"
FILENAME="${DOWNLOAD##*/}"

# The prepare function is executed in the root of the temp directory
# This function is used for downloading files and putting them into the correct location
prepare() {
  wget "$DOWNLOAD"
  tar -xvf "$FILENAME" --strip-components=1 -C "$BPM_SOURCE"
}

# The build function is executed in the source directory
# This function is used to compile the source code
build() {
  # Delete duplicate libraries
  rm -r cups/libs freetype jpeg lcms2mt libpng openjpeg tiff zlib
  
  ./configure --prefix=/usr --disable-compile-inits --with-system-libtiff
  make
  # Compile shared library
  make so
}

# The package function is executed in the source directory
# This function is used to move the compiled files into the output directory
package() {
  make DESTDIR="$BPM_OUTPUT" install
  # Install shared library 
  make DESTDIR="$BPM_OUTPUT" soinstall

  # Install heaeder files
  install -Dm644 base/*.h -t "$BPM_OUTPUT"/usr/include/ghostscript
  ln -sfn ghostscript "$BPM_OUTPUT"/usr/include/ps

  install -Dm644 "$BPM_SOURCE"/LICENSE "$BPM_OUTPUT"/usr/share/licenses/ghostscript/LICENSE
}