Differential D5990 Diff 21676 query_language/build-wasm.sh

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query_language/build-wasm.sh

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Property	Old Value	New Value
File Mode	null	100755

				#!/bin/sh

				set -e

				if [ ! -d "tree-sitter" ]; then
				git clone https://github.com/tree-sitter/tree-sitter
				fi

				web_dir=tree-sitter/lib/binding_web
				lib_src=tree-sitter/lib/src
				emscripten_flags="-O3"
				minify_js=1
				force_docker=0
				emscripen_version=2.0.24

				while [[ $# > 0 ]]; do
				case "$1" in
				--debug)
				minify_js=0
				emscripten_flags="-s ASSERTIONS=1 -s SAFE_HEAP=1 -O0"
				;;

				--help)
				usage
				exit 0
				;;

				--docker)
				force_docker=1
				;;

				*)
				usage
				echo "Unrecognized argument '$1'"
				exit 1
				;;
				esac
				shift
				done

				emcc=
				if which emcc > /dev/null && [[ "$force_docker" == "0" ]]; then
				echo 'Using emcc sdk directly'
				emcc=emcc
				elif which docker > /dev/null; then
				echo 'Using docker'
				emcc="docker run \
				--rm \
				-v $(pwd):/src:Z \
				-u $(id -u) \
				emscripten/emsdk:$emscripen_version \
				emcc"
				else
				echo 'You must have either `docker` or `emcc` on your PATH to run this script'
				exit 1
				fi

				mkdir -p target/scratch

				echo 'Copying files to target directory'
				cp -r grammar.js src/ tree-sitter/lib/

				echo 'Executing emcc command'

				# Use emscripten to generate `tree-sitter.js` and `tree-sitter.wasm`
				# in the `target/scratch` directory
				$emcc \
				-s WASM=1 \
				-s TOTAL_MEMORY=33554432 \
				-s ALLOW_MEMORY_GROWTH=1 \
				-s MAIN_MODULE=2 \
				-s NO_FILESYSTEM=1 \
				-s NODEJS_CATCH_EXIT=0 \
				-s NODEJS_CATCH_REJECTION=0 \
				-s EXPORTED_FUNCTIONS=@${web_dir}/exports.json \
				$emscripten_flags \
				-std=c99 \
				-D 'fprintf(...)=' \
				-D NDEBUG= \
				-I lib/src \
				-I lib/src/unicode \
				-I lib/include \
				-I lib/include/tree_sitter \
				--js-library ${web_dir}/imports.js \
				--pre-js ${web_dir}/prefix.js \
				--post-js ${web_dir}/binding.js \
				--post-js ${web_dir}/suffix.js \
				${lib_src}/lib.c \
				${web_dir}/binding.c \
				-o target/scratch/tree-sitter.js

				# # Use terser to write a minified version of `tree-sitter.js` into
				# # the `lib/binding_web` directory.
				# if [[ "$minify_js" == "1" ]]; then
				# if [ ! -d ${web_dir}/node_modules/terser ]; then
				# (
				# cd ${web_dir}
				# npm install
				# )
				# fi
				# ${web_dir}/node_modules/.bin/terser \
				# --compress \
				# --mangle \
				# --keep-classnames \
				# -- target/scratch/tree-sitter.js \
				# > $web_dir/tree-sitter.js
				# else
				# cp target/scratch/tree-sitter.js $web_dir/tree-sitter.js
				# fi

				mv target/scratch/tree-sitter.wasm $web_dir/tree-sitter.wasm