From f39481ab9868e43067fd564368aeaaf319cfc3c6 Mon Sep 17 00:00:00 2001
From: SrTobi <code.databyte@gmail.com>
Date: Mon, 29 Feb 2016 11:32:20 +0100
Subject: [PATCH] added function to determine bad npm versions

---
 src/npm.ts | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/src/npm.ts b/src/npm.ts
index abe14e9..f38770f 100644
--- a/src/npm.ts
+++ b/src/npm.ts
@@ -14,4 +14,21 @@ export function getDependencies(cwd: string): Promise<string[]> {
 			}
 		);
 	});
+}
+
+const versionCmd = 'npm -v';
+
+const badNpmVersions = [
+	/3.7.[0123]/
+];
+
+export function isBadNpmVersion(): Promise<boolean> {
+	return new Promise<boolean>((c, e) => {
+		cp.exec(versionCmd, (err, stdout, stderr) => {
+			if (err) return e(err);
+			
+			let version = stdout.toString('utf8').trim();
+			c(badNpmVersions.some((regex) => regex.test(version)));
+		});
+	});
 }
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