From fd4e9d93e0c6402f33ee1fec67a10ec667960b6f Mon Sep 17 00:00:00 2001
From: Michael Reichenbach <michael@reichenbach.in>
Date: Fri, 14 Dec 2018 08:13:19 +0100
Subject: [PATCH] feat(minecraft-server): update spigot plugins using /plugins
 if newer

Deep copy and *.jar files in /plugins and update the corresponding files
in the /data/plugins dir.
---
 minecraft-server/Dockerfile                | 1 +
 minecraft-server/start-minecraftFinalSetup | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/minecraft-server/Dockerfile b/minecraft-server/Dockerfile
index f8c1e526..f3d6e3ae 100644
--- a/minecraft-server/Dockerfile
+++ b/minecraft-server/Dockerfile
@@ -14,6 +14,7 @@ RUN apk add --no-cache -U \
           jq \
           mysql-client \
           tzdata \
+          rsync \
           python python-dev py2-pip
 
 RUN pip install mcstatus
diff --git a/minecraft-server/start-minecraftFinalSetup b/minecraft-server/start-minecraftFinalSetup
index 4b5a026e..06b45a55 100755
--- a/minecraft-server/start-minecraftFinalSetup
+++ b/minecraft-server/start-minecraftFinalSetup
@@ -54,8 +54,12 @@ done
 
 if [ "$TYPE" = "SPIGOT" ]; then
   if [ -d /plugins ]; then
+    # Copy all of the plugins directory first to include initial configs
     echo Copying any Bukkit plugins over
     cp -r /plugins /data
+    # Copy plugins over using rsync to allow deeply nested updates of plugins
+    # only updates files if the source file is newer and print updated files
+    rsync -a --out-format="update:%f:Last Modified %M" --prune-empty-dirs --include '*/' --include '*.txt' --exclude '*' --update /plugins /data/plugins
   fi
 fi