ci: use upstream actions

.github/workflows/ci.yml

@@ -1,24 +1,46 @@
-name: Test grammar
+name: CI
 
 on:
   push:
-    branches:
-      - main
+    branches: [master]
     paths:
       - grammar.js
       - src/**
+      - test/**
       - bindings/**
       - binding.gyp
   pull_request:
     paths:
       - grammar.js
       - src/**
+      - test/**
       - bindings/**
       - binding.gyp
 
 jobs:
   test:
-    uses: tree-sitter-grammars/.github/.github/workflows/ci.yml@main
-    with:
-      # NOTE: change to true to also test the rust library:
-      test-library: false
+    name: Run tests
+    runs-on: ${{matrix.os}}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-14]
+    steps:
+      - uses: tree-sitter/[email protected]
+        with:
+          node-version: ${{vars.NODE_VERSION}}
+      - uses: tree-sitter/[email protected]
+  fuzz:
+    name: Fuzz parser
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check for scanner changes
+        id: scanner-changes
+        run: |-
+          if git diff --quiet HEAD^ -- src/scanner.c; then
+            printf 'changed=false\n' >> "$GITHUB_OUTPUT"
+          else
+            printf 'changed=true\n' >> "$GITHUB_OUTPUT"
+          fi
+      - uses: tree-sitter/fuzz-action@v4
+        if: steps.scanner-changes.outputs.changed == 'true'

.gitignore

@@ -1,3 +1,3 @@
+build
 node_modules
-package-lock.json
 parser