gitian: use signapple to apply the MacOS code signature

Github-Pull: #20880
Rebased-From: 95b06d2185

contrib/macdeploy/detached-sig-apply.sh

@@ -8,10 +8,9 @@ set -e
 
 UNSIGNED="$1"
 SIGNATURE="$2"
-ARCH=x86_64
 ROOTDIR=dist
-TEMPDIR=signed.temp
 OUTDIR=signed-app
+SIGNAPPLE=signapple
 
 if [ -z "$UNSIGNED" ]; then
   echo "usage: $0 <unsigned app> <signature>"
@@ -23,35 +22,6 @@ if [ -z "$SIGNATURE" ]; then
   exit 1
 fi
 
-rm -rf ${TEMPDIR} && mkdir -p ${TEMPDIR}
-tar -C ${TEMPDIR} -xf ${UNSIGNED}
-cp -rf "${SIGNATURE}"/* ${TEMPDIR}
-
-if [ -z "${PAGESTUFF}" ]; then
-  PAGESTUFF=${TEMPDIR}/pagestuff
-fi
-
-if [ -z "${CODESIGN_ALLOCATE}" ]; then
-  CODESIGN_ALLOCATE=${TEMPDIR}/codesign_allocate
-fi
-
-find ${TEMPDIR} -name "*.sign" | while read i; do
-  SIZE=$(stat -c %s "${i}")
-  TARGET_FILE="$(echo "${i}" | sed 's/\.sign$//')"
-
-  echo "Allocating space for the signature of size ${SIZE} in ${TARGET_FILE}"
-  ${CODESIGN_ALLOCATE} -i "${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}"
-  echo "Success."
-done
-mv ${TEMPDIR}/${ROOTDIR} ${OUTDIR}
-rm -rf ${TEMPDIR}
+${SIGNAPPLE} apply ${UNSIGNED} ${SIGNATURE}
+mv ${ROOTDIR} ${OUTDIR}
 echo "Signed: ${OUTDIR}"