fix: error while installing [email protected] 'invalid or unexpect…

package.json

@@ -25,10 +25,11 @@
     "bin",
     "lib",
     "register.js",
-    "repl.js"
+    "repl.js",
+    "warning.js"
   ],
   "scripts": {
-    "postinstall": "node --eval 'if (require(\"./package.json\").name === \"coffee-script\") { var red, yellow, cyan, reset; red = yellow = cyan = reset = \"\"; if (!process.env.NODE_DISABLE_COLORS) { red = \"\\x1b[31m\"; yellow = \"\\x1b[33m\"; cyan = \"\\x1b[36m\"; reset = \"\\x1b[0m\"; } console.warn(red + \"CoffeeScript has moved!\" + reset + \" Please update references to \" + yellow + \"\\\"coffee-script\\\"\" + reset + \" to use \" + yellow + \"\\\"coffeescript\\\"\" + reset + \" (no hyphen) instead.\"); console.warn(\"Also, a new major version has been released under the \" + yellow + \"coffeescript\" + reset + \" name on NPM. This new release targets modern JavaScript, with minimal breaking changes. Learn more at \" + cyan + \"http://coffeescript.org\" + reset + \".\"); console.warn(\"\"); }'",
+    "postinstall": "node ./warning.js",
     "test": "node ./bin/cake test",
     "test-harmony": "node --harmony ./bin/cake test"
   },

warning.js

@@ -0,0 +1,54 @@
+var fs = require('fs'),
+  path = require('path');
+
+function readJsonFile(filePath) {
+  try {
+    var data = fs.readFileSync(filePath, 'utf-8');
+    return JSON.parse(data);
+  } catch (error) {
+    return null;
+  }
+}
+
+var pkgCoffeeData = readJsonFile('./package.json');
+
+// In npm when a package is installed the 'package.json' is amended and some new fields are added
+// one of these fields is '_where' which indicates from where the package was installed.
+// in case _where is not defined we cannot determine from where it was installed, thus show the warning.
+if (pkgCoffeeData && pkgCoffeeData._where) {
+  if (pkgCoffeeData._where.indexOf('node_modules') !== -1) {
+    return;
+  }
+
+  var pkgData = readJsonFile(path.join(pkgCoffeeData._where, './package.json'));
+  if (!pkgData) {
+    return;
+  }
+
+  var hasOldCoffeeScript = (pkgData.dependencies && pkgData.dependencies['coffee-script'])
+    || (pkgData.devDependencies && pkgData.devDependencies['coffee-script']);
+
+  if (!hasOldCoffeeScript) {
+    return;
+  }
+}
+
+var red,
+  yellow,
+  cyan,
+  reset;
+
+red = yellow = cyan = reset = '';
+
+if (!process.env.NODE_DISABLE_COLORS) {
+  red = '\x1b[31m';
+  yellow = '\x1b[33m';
+  cyan = '\x1b[36m';
+  reset = '\x1b[0m';
+}
+
+console.warn(red + 'CoffeeScript has moved!' + reset + ' Please update references to ' + yellow + 'coffee-script' + reset + ' to use ' + yellow +
+  'coffeescript' + reset + ' (no hyphen) instead.');
+
+console.warn('Also, a new major version has been released under the ' + yellow + 'coffeescript' + reset +
+  ' name on NPM. This new release targets modern JavaScript, with minimal breaking changes. Learn more at ' + cyan + 'http://coffeescript.org' + reset + '.\n');