From b5501e6127c4a922206059d9be4acf0cb7245be2 Mon Sep 17 00:00:00 2001
From: SrTobi <code.databyte@gmail.com>
Date: Mon, 29 Feb 2016 11:32:04 +0100
Subject: [PATCH 1/3] renamed npm list cmd string

---
 src/npm.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/npm.ts b/src/npm.ts
index d9301d9f..abe14e9f 100644
--- a/src/npm.ts
+++ b/src/npm.ts
@@ -1,11 +1,11 @@
 import * as path from 'path';
 import * as cp from 'child_process';
 
-const cmd = 'npm list --production --parseable';
+const listCmd = 'npm list --production --parseable';
 
 export function getDependencies(cwd: string): Promise<string[]> {
 	return new Promise<string[]>((c, e) => {
-		cp.exec(cmd, { cwd }, (err, stdout, stderr) => {
+		cp.exec(listCmd, { cwd }, (err, stdout, stderr) => {
 				if (err) return e(err);
 
 				c(stdout.toString('utf8')

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 2/3] 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 abe14e9f..f38770f6 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)));
+		});
+	});
 }
\ No newline at end of file

From 682f7a6daad836ebd14e69d21fc71ce90ce4130e Mon Sep 17 00:00:00 2001
From: SrTobi <code.databyte@gmail.com>
Date: Mon, 29 Feb 2016 13:17:33 +0100
Subject: [PATCH 3/3] Output warning when using npm list with bad npm version

---
 src/npm.ts | 25 ++++++++++++++++---------
 1 file changed, 16 insertions(+), 9 deletions(-)

diff --git a/src/npm.ts b/src/npm.ts
index f38770f6..bcd7af09 100644
--- a/src/npm.ts
+++ b/src/npm.ts
@@ -4,16 +4,23 @@ import * as cp from 'child_process';
 const listCmd = 'npm list --production --parseable';
 
 export function getDependencies(cwd: string): Promise<string[]> {
-	return new Promise<string[]>((c, e) => {
-		cp.exec(listCmd, { cwd }, (err, stdout, stderr) => {
-				if (err) return e(err);
-
-				c(stdout.toString('utf8')
-					.split(/[\r\n]/)
-					.filter(dir => path.isAbsolute(dir)));
+	return isBadNpmVersion()
+		.then((isBadVersion) => {
+			if(isBadVersion) {
+				console.warn('You are using a npm version, that does not work well with vsce! Consider to update with "npm install -g npm".')
 			}
-		);
-	});
+		}).then(() => {
+			return new Promise<string[]>((c, e) => {
+				cp.exec(listCmd, { cwd }, (err, stdout, stderr) => {
+						if (err) return e(err);
+
+						c(stdout.toString('utf8')
+							.split(/[\r\n]/)
+							.filter(dir => path.isAbsolute(dir)));
+					}
+				);
+			});
+		});
 }
 
 const versionCmd = 'npm -v';