# This is the recipe.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 "$BPM_SOURCE"
  # Fetch cargo dependencies
  cargo fetch --locked --target "$(rustc --print host-tuple)"
}

# The build function is executed in the source directory
# This function is used to compile the source code
build() {
  cargo build --release --frozen
}

# The package function is executed in the source directory
# This function is used to move the compiled files into the output directory
package() {
  install -Dm755 target/release/bindgen "$BPM_OUTPUT"/usr/bin/bindgen

  # Generate bash completions
  install -d "$BPM_OUTPUT"/usr/share/bash-completion/completions/
  target/release/bindgen --generate-shell-completions bash > "$BPM_OUTPUT"/usr/share/bash-completion/completions/bindgen

  # Generate zsh completions
  install -d "$BPM_OUTPUT"/usr/share/zsh/site-functions/
  target/release/bindgen --generate-shell-completions zsh > "$BPM_OUTPUT"/usr/share/zsh/site-functions/_bindgen

  # Generate fish completions
  install -d "$BPM_OUTPUT"/usr/share/fish/vendor_completions.d/
  target/release/bindgen --generate-shell-completions fish > "$BPM_OUTPUT"/usr/share/fish/vendor_completions.d/bindgen.fish

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