#!/bin/sh
set -e

ROOTDIR=dist
BUNDLE="${ROOTDIR}/Bitcoin-Qt.app"
CODESIGN=codesign
TEMPDIR=sign.temp
TEMPLIST=${TEMPDIR}/signatures.txt
OUT=signature.tar.gz
OUTROOT=osx

if [ ! -n "$1" ]; then
  echo "usage: $0 <codesign args>"
  echo "example: $0 -s MyIdentity"
  exit 1
fi

rm -rf ${TEMPDIR} ${TEMPLIST}
mkdir -p ${TEMPDIR}

${CODESIGN} -f --file-list ${TEMPLIST} "$@" "${BUNDLE}"

grep -v CodeResources < "${TEMPLIST}" | while read i; do
  TARGETFILE="${BUNDLE}/`echo "${i}" | sed "s|.*${BUNDLE}/||"`"
  SIZE=`pagestuff "$i" -p | tail -2 | grep size | sed 's/[^0-9]*//g'`
  OFFSET=`pagestuff "$i" -p | tail -2 | grep offset | sed 's/[^0-9]*//g'`
  SIGNFILE="${TEMPDIR}/${OUTROOT}/${TARGETFILE}.sign"
  DIRNAME="`dirname "${SIGNFILE}"`"
  mkdir -p "${DIRNAME}"
  echo "Adding detached signature for: ${TARGETFILE}. Size: ${SIZE}. Offset: ${OFFSET}"
  dd if="$i" of="${SIGNFILE}" bs=1 skip=${OFFSET} count=${SIZE} 2>/dev/null
done

grep CodeResources < "${TEMPLIST}" | while read i; do
  TARGETFILE="${BUNDLE}/`echo "${i}" | sed "s|.*${BUNDLE}/||"`"
  RESOURCE="${TEMPDIR}/${OUTROOT}/${TARGETFILE}"
  DIRNAME="`dirname "${RESOURCE}"`"
  mkdir -p "${DIRNAME}"
  echo "Adding resource for: "${TARGETFILE}""
  cp "${i}" "${RESOURCE}"
done

rm ${TEMPLIST}

tar -C "${TEMPDIR}" -czf "${OUT}" .
rm -rf "${TEMPDIR}"
echo "Created ${OUT}"