1 files changed, 35 insertions, 0 deletions
diff --git a/tools/tasks/check.versions.ts b/tools/tasks/check.versions.ts
new file mode 100644
index 0000000..211d5ed
--- /dev/null
+++ b/tools/tasks/check.versions.ts
@@ -0,0 +1,35 @@
+import {VERSION_NPM, VERSION_NODE} from '../config';
+
+function reportError(message: string) {
+  console.error(require('chalk').white.bgRed.bold(message));
+  process.exit(1);
+}
+
+module.exports = function check(gulp, plugins) {
+  return function () {
+    let exec = require('child_process').exec;
+    let semver = require('semver');
+
+    exec('npm --version',
+      function (error, stdout, stderr) {
+        if (error !== null) {
+          reportError('npm preinstall error: ' + error + stderr);
+        }
+
+        if (!semver.gte(stdout, VERSION_NPM)) {
+          reportError('NPM is not in required version! Required is ' + VERSION_NPM + ' and you\'re using ' + stdout);
+        }
+      });
+
+    exec('node --version',
+      function (error, stdout, stderr) {
+        if (error !== null) {
+          reportError('npm preinstall error: ' + error + stderr);
+        }
+
+        if (!semver.gte(stdout, VERSION_NODE)) {
+          reportError('NODE is not in required version! Required is ' + VERSION_NODE + ' and you\'re using ' + stdout);
+        }
+      });
+  };
+};