Remove workspaces key from package.json for publishing

Closes #26

package.json

@@ -11,7 +11,10 @@
     "build": "babel --source-maps=both src -d build",
     "clean": "rimraf build",
     "lint": "eslint src/ --ext .jsx,.js",
-    "prepack": "yarn clean && yarn build",
+    "postpack": "yarn restore-workspaces",
+    "prepack": "yarn clean && yarn build && yarn remove-workspaces",
+    "remove-workspaces": "node remove_workspaces.js",
+    "restore-workspaces": "node restore_workspaces.js",
     "test": "yarn lint"
   },
   "keywords": [

remove_workspaces.js

@@ -0,0 +1,16 @@
+/**
+ * Removes workspaces key from package.json to avoid issue with Yarn v1
+ * See: https://github.com/wojtekmaj/enzyme-adapter-react-17/issues/26
+ */
+const fs = require('fs');
+
+fs.copyFileSync('./package.json', './package.json.bak');
+
+const packageJson = JSON.parse(fs.readFileSync('package.json', 'utf8'));
+
+const {
+  workspaces,
+  ...packageJsonWithoutWorkspaces
+} = packageJson;
+
+fs.writeFileSync('package.json', `${JSON.stringify(packageJsonWithoutWorkspaces, null, 2)}\n`);

restore_workspaces.js

@@ -0,0 +1,8 @@
+/**
+ * Restores original package.json file
+ */
+const fs = require('fs');
+
+fs.copyFileSync('./package.json.bak', './package.json');
+
+fs.unlinkSync('./package.json.bak');