start fresh with commit history

dw, they're kept up on a private repository

scripts/upstreamCommit.sh

@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+
+# requires curl & jq
+
+# upstreamCommit <baseHash> <newHash>
+# param: bashHash - the commit hash to use for comparing commits (baseHash...newHash)
+# param: newHash - the commit hash to use for comparing commits
+
+(
+set -e
+PS1="$"
+
+paper=$(curl -H "Accept: application/vnd.github.v3+json" https://api.github.com/repos/PaperMC/Paper/compare/$1...$2 | jq -r '.commits[] | "PaperMC/Paper@\(.sha[:7]) \(.commit.message | split("\r\n")[0] | split("\n")[0])"')
+
+updated=""
+logsuffix=""
+if [ ! -z "paper" ]; then
+    logsuffix="$logsuffix\n\nPaper Changes:\n$paper"
+    updated="Paper"
+fi
+disclaimer="Upstream has released updates that appear to apply and compile correctly"
+
+log="${UP_LOG_PREFIX}Updated Upstream ($updated)\n\n${disclaimer}${logsuffix}"
+
+echo -e "$log" | git commit -F -
+
+) || exit 1