tree-sitter/script/build-wasm
2019-04-26 19:52:01 -07:00

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#!/usr/bin/env bash
set -e
export EMCC_FORCE_STDLIBS=libc++
args="-Os"
if [[ "$1" == "--debug" ]]; then
args="-s ASSERTIONS=1 SAFE_HEAP=1 -O0"
fi
mkdir -p target/scratch target/release
docker run \
--rm \
-v $(pwd):/src \
-u $(id -u) \
trzeci/emscripten-slim \
\
emcc \
-s WASM=1 \
-s ALLOW_MEMORY_GROWTH \
-s MAIN_MODULE=1 \
-s EXPORT_ALL=1 \
$args \
-std=c99 \
-D 'fprintf(...)=' \
-I lib/src \
-I lib/include \
-I lib/utf8proc \
--js-library lib/web/imports.js \
--pre-js lib/web/prefix.js \
--post-js lib/web/binding.js \
lib/src/lib.c \
lib/web/binding.c \
-o target/scratch/tree-sitter.js
if [ ! -d lib/web/node_modules/terser ]; then
(
cd lib/web
npm install
)
fi
lib/web/node_modules/.bin/terser \
--compress \
--mangle \
--keep-fnames \
--keep-classnames \
-- target/scratch/tree-sitter.js \
> target/release/tree-sitter.js
mv target/scratch/tree-sitter.wasm target/release/tree-sitter.wasm