From 6f239e68579d0dd54c4ce524759513eab66b4cbe Mon Sep 17 00:00:00 2001
From: LetterJay <jgilbert1991@gmail.com>
Date: Sat, 15 Apr 2017 01:03:44 -0500
Subject: [PATCH] PRMirror

---
 tools/toolsmerge-upstream-pull-request.sh | 62 +++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 tools/toolsmerge-upstream-pull-request.sh

diff --git a/tools/toolsmerge-upstream-pull-request.sh b/tools/toolsmerge-upstream-pull-request.sh
new file mode 100644
index 0000000000..2534e9c55f
--- /dev/null
+++ b/tools/toolsmerge-upstream-pull-request.sh
@@ -0,0 +1,62 @@
+#!/usr/bin/env bash
+
+set -u # don't expand unbound variable
+set -f # disable pathname expansion
+set -C # noclobber
+
+BASE_PATCH_URL="https://patch-diff.githubusercontent.com/raw/tgstation/tgstation/pull/"
+BASE_BRANCH_NAME="upstream-merge-"
+
+tmpfile=$(mktemp /tmp/git-patch-script.XXXXXX)
+
+# Ensure the current directory is a git directory
+if [ ! -d .git ]; then
+    echo "Error: must run this script from the root of a git repository"
+    exit 1
+fi
+
+# Ensure all given parameters exist
+if [ $# -eq 0 ]; then
+    echo "Error: No arguments have been given, the first argument needs to be a pull ID, the second argument needs to be the commit message"
+    exit 1
+fi
+
+# Make sure our temp file exists
+if [ ! -f "$tmpfile" ]; then
+    echo "Error: mktemp failed to create a temporarily file"
+    exit 1
+fi
+
+# Ensure wget exists and is available in the current context
+type wget >/dev/null 2>&1 || { echo >&2 "Error: This script requires wget, please ensure wget is installed and exists in the current PATH"; exit 1; }
+
+# Download the patchfile
+wget "$BASE_PATCH_URL$1.patch" -q -O "$tmpfile"
+
+# We need to make sure we are always on a clean master when creating the new branch.
+# So we forcefully reset, clean and then checkout the master branch
+git fetch
+git checkout master
+git reset --hard origin/master
+git clean -f
+
+# Remove the other branches
+git branch | grep -v "master" | xargs git branch -D
+
+# Create a new branch
+git checkout -b "$BASE_BRANCH_NAME$1"
+
+# Apply the patch on top of this new branch
+git apply --reject --ignore-space-change --ignore-whitespace "$tmpfile"
+
+# Add all files onto this branch
+git add -A .
+
+# Commit these changes
+git commit -m "$2"
+
+# Push them onto the branch
+git push -u origin "$BASE_BRANCH_NAME$1"
+
+# Remove the temp file
+rm "$tmpfile"
\ No newline at end of file