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#!/bin/sh
# Copyright (c) 2014-2019 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
#
# This script is based on https://github.com/bitcoin/bitcoin/blob/194b9b8792d9b0798fdb570b79fa51f1d1f5ebaf/contrib/macdeploy/detached-sig-apply.sh
export LC_ALL=C
set -e
if [ $(uname) != "Darwin" ]; then
echo "This script needs to be run on macOS."
exit 1
fi
CP=gcp
UNSIGNED="$1"
SIGNATURE="$2"
ARCH=x86_64
OUTDIR="/tmp/electrum_compare_dmg/signed_app"
if [ -z "$UNSIGNED" ]; then
echo "usage: $0 <unsigned app> <path to mac_extracted_sigs.tar.gz>"
exit 1
fi
if [ -z "$SIGNATURE" ]; then
echo "usage: $0 <unsigned app> <path to mac_extracted_sigs.tar.gz>"
exit 1
fi
rm -rf ${OUTDIR} && mkdir -p ${OUTDIR}
${CP} -rf ${UNSIGNED} ${OUTDIR}
tar xf "${SIGNATURE}" -C ${OUTDIR}
find ${OUTDIR} -name "*.sign" | while read i; do
SIZE=$(gstat -c %s "${i}")
TARGET_FILE="$(echo "${i}" | sed 's/\.sign$//')"
if [ -z ${QUIET} ]; then
echo "Allocating space for the signature of size ${SIZE} in ${TARGET_FILE}"
fi
codesign_allocate -i "${TARGET_FILE}" -a ${ARCH} ${SIZE} -o "${i}.tmp"
OFFSET=$(pagestuff "${i}.tmp" -p | tail -2 | grep offset | sed 's/[^0-9]*//g')
if [ -z ${QUIET} ]; then
echo "Attaching signature at offset ${OFFSET}"
fi
dd if="$i" of="${i}.tmp" bs=1 seek=${OFFSET} count=${SIZE} 2>/dev/null
mv "${i}.tmp" "${TARGET_FILE}"
rm "${i}"
if [ -z ${QUIET} ]; then
echo "Success."
fi
done
echo "Done. .app with sigs applied is at: ${OUTDIR}"