From 33e78a589e31ec90f81c688b5e12bbbf3101d04e Mon Sep 17 00:00:00 2001
From: Jonathan Rainville <rainville.jonathan@gmail.com>
Date: Fri, 25 May 2018 13:48:56 -0400
Subject: [PATCH] add error if user uses ipfs 0.4.14 or lower

---
 lib/processes/storageProcesses/ipfs.js | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/lib/processes/storageProcesses/ipfs.js b/lib/processes/storageProcesses/ipfs.js
index dba1b62f8..465912221 100644
--- a/lib/processes/storageProcesses/ipfs.js
+++ b/lib/processes/storageProcesses/ipfs.js
@@ -8,9 +8,27 @@ class IPFSProcess extends ProcessWrapper {
   constructor(_options) {
     super();
 
+    this.checkIPFSVersion();
     this.startIPFSDaemon();
   }
 
+  checkIPFSVersion() {
+    shelljs.exec('ipfs --version', {silent: true}, (err, stdout, _stderr) => {
+      if (err) {
+        console.error(err);
+        return;
+      }
+      const match = stdout.match(/[0-9]+\.[0-9]+\.[0-9]+/);
+      if (match[0]) {
+        const versions = match[0].split('.');
+        if (versions[0] <= 0 && versions[1] <= 4 && versions[2] <= 15) {
+          console.error(`You are using IPFS version ${match[0]} which has an issue with processes.`);
+          console.error(`Please update to IPFS version 0.4.15 or more recent: https://github.com/ipfs/ipfs-update`);
+        }
+      }
+    });
+  }
+
   startIPFSDaemon() {
     const self = this;
     const child = shelljs.exec('ipfs daemon', {silent: true}, (err, _stdout, _stderr) => {