Generate a Drupal patch+interdiff when using branch-per-patch method, where branch is issue#-comment#. Doesn't take into account fetching or rebasing.

patch.sh

#!/bin/bash

ISSUE=`git rev-parse --abbrev-ref HEAD | cut -d'-' -f1`
COMMENT1=`git branch | grep -B 1 '*' | head -1 | cut -d'-' -f2`
COMMENT2=`git rev-parse --abbrev-ref HEAD | cut -d'-' -f2`

rm -f *.patch interdiff*.txt

git diff origin/8.4.x > `git rev-parse --abbrev-ref HEAD`.patch

if [ "${COMMENT1}" != "${COMMENT2}" ]; then
    git diff ${ISSUE}-${COMMENT1} > interdiff-${COMMENT1}-${COMMENT2}.txt
fi