Add package.json for mozjs grammar (#539)

* Do not remove package files from moz grammars

When a grammar is updated, package files need to be maintained in order
to pin up dependencies so that it is impossible to have indefinite
`tree-sitter-cli` versions

* mozjs: Add package.json

generate-grammars/generate-mozcpp.sh

@@ -46,9 +46,6 @@ npm install --save-dev tree-sitter-cli
 # Delete node_modules
 rm -rf node_modules
 
-# Delete package files
-rm -rf package-lock.json package.json
-
 # Delete tree-sitter-cpp directory
 rm -rf tree-sitter-cpp
 

generate-grammars/generate-mozjs.sh

@@ -50,9 +50,6 @@ npm install --save-dev tree-sitter-cli
 # Delete node_modules
 rm -rf node_modules
 
-# Delete package files
-rm -rf package-lock.json package.json
-
 # Delete tree-sitter-javascript directory
 rm -rf tree-sitter-javascript
 

tree-sitter-mozjs/package.json

@@ -0,0 +1,38 @@
+{
+  "name": "tree-sitter-mozjs",
+  "version": "0.17.0",
+  "description": "Mozjs grammar for node-tree-sitter",
+  "main": "index.js",
+  "keywords": [
+    "parser",
+    "lexer"
+  ],
+  "author": "Calixte Denizet",
+  "license": "MIT",
+  "dependencies": {
+    "nan": "^2.14.2"
+  },
+  "devDependencies": {
+    "tree-sitter-cli": "^0.17.3"
+  },
+  "scripts": {
+    "build": "tree-sitter generate && node-gyp build",
+    "test": "tree-sitter test && tree-sitter parse examples/* --quiet --time",
+    "test-windows": "tree-sitter test",
+    "install": "node-gyp rebuild"
+  },
+  "tree-sitter": [
+    {
+      "scope": "source.js",
+      "file-types": [
+        "js",
+        "js2",
+        "jsm"
+      ]
+    }
+  ],
+  "gypfile": true,
+  "directories": {
+    "example": "examples"
+  }
+}