# 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

# The prepare function is executed in the root of the temp directory
# This function is used for putting downloaded files to the correct location or applying patches
prepare() {
  cd "$BPM_SOURCE"
  # Patch from fedora
  patch -Np1 -i "$BPM_WORKDIR"/mesa-demos-system-data.patch
}

# The build function is executed in the source directory
# This function is used to compile the source code
build() {
  meson setup build --prefix=/usr -Dgles1=disabled -Dosmesa=disabled -Dwith-system-data-files=true
  meson compile -C build
}

_pick() {
  local p="$1" f d; shift
  for f; do
    [ -d "$BPM_WORKDIR"/output_"$p" ] || { echo "Split package $p not found"; exit 1; } 
    d="$BPM_WORKDIR"/output_"$p"/"${f#$BPM_OUTPUT}"
    mkdir -p "$(dirname "$d")"
    mv "$f" "$d"
    rmdir -p --ignore-fail-on-non-empty "$(dirname "$f")"
  done
}

# The package function is executed in the source directory
# This function is used to move the compiled files into the output directory
package_mesa-demos() {
  meson install -C build --destdir="$BPM_OUTPUT"

  cd "$BPM_OUTPUT"

  # Move mesa utilities into split package
  _pick mesa-utils usr/bin/eglinfo
  _pick mesa-utils usr/bin/eglgears_*
  _pick mesa-utils usr/bin/eglkms
  _pick mesa-utils usr/bin/egltri_*
  _pick mesa-utils usr/bin/peglgears
  _pick mesa-utils usr/bin/xeglgears
  _pick mesa-utils usr/bin/xeglthreads
  _pick mesa-utils usr/bin/es2_info
  _pick mesa-utils usr/bin/es2gears_*
  _pick mesa-utils usr/bin/es2tri
  _pick mesa-utils usr/bin/glxinfo
  _pick mesa-utils usr/bin/glxgears
  _pick mesa-utils usr/bin/vkgears

  # Install package license
  install -Dm644 "$BPM_WORKDIR"/LICENSE "$BPM_OUTPUT"/usr/share/licenses/mesa-demos/LICENSE
}

package_mesa-utils() {
  # Install package license
  install -Dm644 "$BPM_WORKDIR"/LICENSE "$BPM_OUTPUT"/usr/share/licenses/mesa-utils/LICENSE
}