From c19b73a84ca6305394915f157f7f04b4b2b52100 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jo=C3=A3o=20Victor=20Tozatti=20Risso?= <jvtr12@inf.ufpr.br>
Date: Tue, 22 Nov 2016 11:50:21 -0200
Subject: [PATCH] Add middleware to check for the appropriate Node version
- Add middleware to check for the appropriate Node version. This relies on the
engines.node flag being set on package.json.
---
src/libs/middlewares/checkVersion.js | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
create mode 100644 src/libs/middlewares/checkVersion.js
diff --git a/src/libs/middlewares/checkVersion.js b/src/libs/middlewares/checkVersion.js
new file mode 100644
index 00000000..c3187adb
--- /dev/null
+++ b/src/libs/middlewares/checkVersion.js
@@ -0,0 +1,22 @@
+const curPath = process.cwd();
+const libs = `${process.cwd()}/libs`;
+const log = require(`${libs}/log`)(module);
+const chalk = require('chalk');
+const packageConf = require(`${curPath}/package.json`);
+
+module.exports = () => {
+ // Parse version number from strings such as 'v4.2.0' or `>=4.0.0'
+ function parseVersionNumber(versionString) {
+ return parseFloat(versionString.replace(/[^\d\.]/g, ''));
+ }
+ // Ensure minimum supported node version is used
+ const minNodeVersion = parseVersionNumber(packageConf.engines.node);
+ const currentNodeVersion = parseVersionNumber(process.version);
+ if (minNodeVersion > currentNodeVersion) {
+ log.error(chalk.red(`You must upgrade node to >=${minNodeVersion}.x to use simcaq-node!`));
+ return false;
+ } else {
+ log.info('Node version should work!');
+ return true;
+ }
+};
--
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