Build and test wasm on CI

script/build-wasm

@@ -11,7 +11,13 @@ fi
 
 mkdir -p $target_dir
 
-emcc                                \
+docker run                          \
+  --rm                              \
+  -v $(pwd):/src                    \
+  -u $(id -u)                       \
+  trzeci/emscripten-slim            \
+                                    \
+  emcc                              \
   -s WASM=1                         \
   -s ALLOW_MEMORY_GROWTH            \
   -s MAIN_MODULE=1                  \

script/generate-fixtures

@@ -7,27 +7,16 @@ cargo build --release
 root_dir=$PWD
 tree_sitter=${root_dir}/target/release/tree-sitter
 grammars_dir=${root_dir}/test/fixtures/grammars
-
-grammar_names=(
-  bash
-  c
-  cpp
-  embedded-template
-  go
-  html
-  javascript
-  json
-  python
-  rust
-)
+grammar_names=$(ls $grammars_dir)
 
 if [[ "$#" > 0 ]]; then
   grammar_names=($1)
 fi
 
-for grammar_name in "${grammar_names[@]}"; do
+for grammar_name in $grammar_names; do
   echo "Regenerating ${grammar_name} parser"
-  cd ${grammars_dir}/${grammar_name}
-  $tree_sitter generate src/grammar.json
-  cd $PWD
+  (
+    cd ${grammars_dir}/${grammar_name}
+    $tree_sitter generate src/grammar.json
+  )
 done

script/generate-fixtures-wasm

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+
+set -e
+
+cargo build --release
+
+root_dir=$PWD
+tree_sitter=${root_dir}/target/release/tree-sitter
+grammars_dir=${root_dir}/test/fixtures/grammars
+grammar_names=(
+  javascript
+  python
+)
+
+if [[ "$#" > 0 ]]; then
+  grammar_names=($1)
+fi
+
+for grammar_name in ${grammar_names[@]}; do
+  echo "Compiling ${grammar_name} parser to wasm"
+  $tree_sitter build-wasm ${grammars_dir}/${grammar_name}
+done
+
+mv tree-sitter-*.wasm target/scratch/

script/test-wasm

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+set -e
+
+cd lib/web
+
+if [ ! -d "node_modules/chai" ] || [ ! -d "node_modules/mocha" ]; then
+  echo "Installing test dependencies..."
+  npm install
+fi
+
+./node_modules/.bin/mocha