# 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/tree-sitter/tree-sitter/archive/refs/tags/v${BPM_PKG_VERSION}.tar.gz"
FILENAME="${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() {
  # Build library
  mkdir lib/build
  cd lib/build

  cmake -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_INTERPROCEDURAL_OPTIMIZATION=ON ..
  make

  # Build command-line interface
  cd "$BPM_SOURCE"/cli
  
  cargo fetch --locked --target "$(rustc -vV | sed -n 's/host: //p')"
  cargo build --release --locked --offline
}

# Function for packaging the main tree sitter library
package_tree-sitter() {
  cd lib/build

  make DESTDIR="$BPM_OUTPUT" install

  # Install package license
  install -Dm644 "$BPM_SOURCE"/LICENSE "$BPM_OUTPUT"/usr/share/licenses/tree-sitter/LICENSE
}

# Function for packaging the tree sitter cli tools
package_tree-sitter-cli() {
  cd cli

  install -D "$BPM_SOURCE"/target/release/tree-sitter "$BPM_OUTPUT"/usr/bin/tree-sitter

  # Install package license
  install -Dm644 "$BPM_SOURCE"/LICENSE "$BPM_OUTPUT"/usr/share/licenses/tree-sitter/LICENSE
}