Upgrade dependencies, add version check for react-dnd < 9.0.0

package.json

@@ -4,7 +4,7 @@
   "private": true,
   "scripts": {
     "clean": "rm -rf packages/*/lib",
-    "build:lib": "find packages -mindepth 1 -maxdepth 1 -type d -exec babel '{}'/src --out-dir '{}'/lib --ignore _spec.js ';'",
+    "build:lib": "lerna exec --prefix -- babel --config-file ../../babel.config.js --ignore 'src/__tests__/' --out-dir lib --delete-dir-on-start src",
     "build:dist": "webpack --mode production",
     "build:examples": "webpack --mode production --config webpack/examples.js",
     "build": "npm run build:lib && npm run build:dist && npm run build:examples",
@@ -19,33 +19,33 @@
     "postinstall": "lerna bootstrap"
   },
   "devDependencies": {
-    "@babel/cli": "^7.4.3",
-    "@babel/core": "^7.4.3",
-    "@babel/plugin-proposal-class-properties": "^7.4.0",
-    "@babel/plugin-proposal-decorators": "^7.4.0",
-    "@babel/preset-env": "^7.4.3",
+    "@babel/cli": "^7.5.5",
+    "@babel/core": "^7.5.5",
+    "@babel/plugin-proposal-class-properties": "^7.5.5",
+    "@babel/plugin-proposal-decorators": "^7.4.4",
+    "@babel/preset-env": "^7.5.5",
     "@babel/preset-react": "^7.0.0",
-    "@babel/register": "^7.4.0",
-    "acorn": "^6.1.1",
-    "ajv": "^6.10.0",
-    "babel-eslint": "^10.0.1",
-    "babel-jest": "^24.7.1",
-    "babel-loader": "^8.0.5",
-    "copy-webpack-plugin": "^5.0.2",
-    "coveralls": "^3.0.3",
-    "enzyme": "^3.9.0",
-    "enzyme-adapter-react-16": "^1.11.2",
+    "@babel/register": "^7.5.5",
+    "acorn": "^6.2.1",
+    "ajv": "^6.10.2",
+    "babel-eslint": "^10.0.2",
+    "babel-jest": "^24.8.0",
+    "babel-loader": "^8.0.6",
+    "copy-webpack-plugin": "^5.0.3",
+    "coveralls": "^3.0.5",
+    "enzyme": "^3.10.0",
+    "enzyme-adapter-react-16": "^1.14.0",
     "eslint": "^5.16.0",
-    "eslint-loader": "^2.1.2",
-    "eslint-plugin-react": "^7.12.4",
-    "jest": "^24.7.1",
+    "eslint-loader": "^2.2.1",
+    "eslint-plugin-react": "^7.14.3",
+    "jest": "^24.8.0",
     "jest-enzyme": "^7.0.2",
-    "lerna": "^3.13.1",
+    "lerna": "^3.16.4",
     "react": "^16.8.6",
     "react-dom": "^16.8.6",
-    "webpack": "^4.29.6",
+    "webpack": "^4.37.0",
     "webpack-command": "^0.4.2",
-    "webpack-dev-server": "^3.2.1",
+    "webpack-dev-server": "^3.7.2",
     "webpack-merge": "^4.2.1"
   }
 }

packages/react-dnd-multi-backend/package.json

@@ -23,14 +23,14 @@
   },
   "peerDependencies": {
     "react": "*",
-    "react-dnd": "*",
-    "react-dnd-html5-backend": "*",
-    "react-dnd-touch-backend": "*",
+    "react-dnd": "< 9.0.0",
+    "react-dnd-html5-backend": "< 9.0.0",
+    "react-dnd-touch-backend": "< 9.0.0",
     "react-dom": "*"
   },
   "devDependencies": {
     "object-assign": "^4.1.1",
-    "react-dnd-html5-backend": "^5.0.1",
-    "react-dnd-touch-backend": "^0.5.2"
+    "react-dnd-html5-backend": "< 9.0.0",
+    "react-dnd-touch-backend": "< 9.0.0"
   }
 }

packages/react-dnd-preview/package.json

@@ -20,11 +20,11 @@
   },
   "devDependencies": {
     "react": "*",
-    "react-dnd": "*",
-    "react-dnd-test-backend": "^5.0.1"
+    "react-dnd": "< 9.0.0",
+    "react-dnd-test-backend": "< 9.0.0"
   },
   "peerDependencies": {
     "react": "*",
-    "react-dnd": "*"
+    "react-dnd": "< 9.0.0"
   }
 }

packages/react-dnd-preview/src/__tests__/index_spec.js

@@ -31,7 +31,7 @@ describe('Preview subcomponent', () => {
 
   test('is null when DnD is not in progress', () => {
     const component = createComponent().find(Preview);
-    expect(component.html()).toBeNull();
+    expect(component.html()).toEqual('');
   });
 
   test('is valid when DnD is in progress', () => {