[CI-SKIP] Add script to commit upstream changelogs

Paper team can do paper upcommit when manual upstream updates are needed
this will generate a changelog of everything that has changed between then and now.

paper

@@ -82,6 +82,12 @@ case "$1" in
         scripts/upstreamMerge.sh "$basedir" "$2"
     )
     ;;
+    "cu" | "commitup" | "commitupstream" | "upcommit" | "upstreamcommit")
+    (
+        cd "$basedir"
+        scripts/upstreamCommit.sh "$@"
+    )
+    ;;
     "r" | "root")
         cd "$basedir"
     ;;
@@ -198,4 +204,4 @@ if [ "$failed" == "1" ]; then
 else
 	unset failed
 	true
-fi
+fi

scripts/upstreamCommit.sh

@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+(
+set -e
+PS1="$"
+
+function changelog() {
+    base=$(git ls-tree HEAD $1  | cut -d' ' -f3 | cut -f1)
+    cd $1 && git log --oneline ${base}...HEAD
+}
+bukkit=$(changelog work/Bukkit)
+cb=$(changelog work/CraftBukkit)
+spigot=$(changelog work/Spigot)
+
+updated=""
+logsuffix=""
+if [ ! -z "$bukkit" ]; then
+    logsuffix="$logsuffix\n\nBukkit Changes:\n$bukkit"
+    updated="Bukkit"
+fi
+if [ ! -z "$cb" ]; then
+    logsuffix="$logsuffix\n\nCraftBukkit Changes:\n$cb"
+    if [ -z "$updated" ]; then updated="CraftBukkit"; else updated="$updated/CraftBukkit"; fi
+fi
+if [ ! -z "$spigot" ]; then
+    logsuffix="$logsuffix\n\nSpigot Changes:\n$spigot"
+    if [ -z "$updated" ]; then updated="Spigot"; else updated="$updated/Spigot"; fi
+fi
+disclaimer="Upstream has released updates that appears to apply and compile correctly.\nThis update has not been tested by PaperMC and as with ANY update, please do your own testing"
+
+if [ ! -z "$1" ]; then
+    disclaimer="$@"
+fi
+
+log="${UP_LOG_PREFIX}Updated Upstream ($updated)\n\n${disclaimer}${logsuffix}"
+
+echo -e "$log" | git commit -F -
+
+) || exit 1