From 40a171d44a153a5f35e8ba48dfd3bc35fb43729c Mon Sep 17 00:00:00 2001
From: Shane Kilkelly <shane.kilkelly@overleaf.com>
Date: Thu, 18 Jun 2020 14:56:50 +0100
Subject: [PATCH] Also check we can touch the filesystem in healthcheck

---
 .../src/main/java/uk/ac/ic/wlgitbridge/bridge/Bridge.java     | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/services/git-bridge/src/main/java/uk/ac/ic/wlgitbridge/bridge/Bridge.java b/services/git-bridge/src/main/java/uk/ac/ic/wlgitbridge/bridge/Bridge.java
index 3e54cd1920..6bd5df2a59 100644
--- a/services/git-bridge/src/main/java/uk/ac/ic/wlgitbridge/bridge/Bridge.java
+++ b/services/git-bridge/src/main/java/uk/ac/ic/wlgitbridge/bridge/Bridge.java
@@ -266,6 +266,10 @@ public class Bridge {
     public boolean healthCheck() {
        try {
          dbStore.getNumProjects();
+         File rootDirectory = new File("/");
+         if (!rootDirectory.exists()) {
+           throw new Exception("bad filesystem state, root directory does not exist");
+         }
          Log.error("[HealthCheck] passed");
          return true;
        } catch (Exception e)  {