Tool to obtain diff of Bitcoin ABC to similarly formatted baseline Core commit(to eliminate as much as possible the formatting changes from the diff)

get_ABC_diff_to_Core_base.sh

#!/bin/bash
#
# Copyright (c) 2017 freetrader (freetrader@tuta.io)
# This script is placed in the public domain.
#
# It obtains the difference between the reformatted Core baseline commit
# on top of which Bitcoin ABC was developed.
#
# After running this script, you should have a 'abc_diff_to_core_base'
# subfolder, in which there is the full .diff and the repo from which
# it was produced (containing a 'baseline' branch which is the reformatted
# Core 0.14.1 baseline, and the latest Bitcoin ABC 'master' branch).

set -e
OUTPUT_FOLDER=abc_diff_to_core_base

pushd .

mkdir $OUTPUT_FOLDER
cd $OUTPUT_FOLDER

# Clone the current ABC repo's 'master' branch.
git clone -b master https://github.com/Bitcoin-ABC/bitcoin-abc.git bitcoin-abc-diffs
cd bitcoin-abc-diffs
# Fetch reformatted baseline tree from freetrader's repo.
git fetch https://github.com/ftrader-bitcoinabc/bitcoin-abc.git format_core_0_14_1_baseline_for_comparison:baseline
# Run the comparison.
git diff baseline master > ../abc_baseline_to_master.diff

# Output some stats for the diff.
git diff --stat baseline master | tail -1

popd

This uses about 93MB on the disk.