InstallForRsync

#!/bin/bash

hostname
date

# check archive
ARCHIVE=`ls -f gap*.tar.gz |head -1`

if [ $ARCHIVE'X' != X ]; then
  echo "Using archive "$ARCHIVE
else
  echo "No archive found. Please, download from "
  echo "     https://www.gap-system.org/Releases/"
  exit 1
fi

tar xzvf $ARCHIVE --one-top-level=build

# compile GAP and packages
cd build
mv gap* gap-rsync
cd gap-rsync

# repair some permissions
chmod -R -c g-w,o-r,g+r,o+r .
chmod 755 pkg

./configure
make -j 8

# compiling packages
cd pkg
../bin/BuildPackages.sh

cd ..

# find all executable files which use shared libraries
#   (this list is empty for the content of the original archive)
find -type f -executable -exec sh -c "file -i '{}' | \
      grep -q '\(x-sharedlib\|x-pie-executable\|x-executable\); charset=binary'" \; -print > executables

# find the dynamic libraries needed by the executables
for a in `cat executables ` 
do 
  ldd $a; 
done | grep '=>' | sed -e 's|.* => ||' | \
        sed -e 's| (.*||' | sort |uniq > neededlibs

# make copies of needed library files and set rpath in copies
mkdir -p locallibs
for a in `cat neededlibs`
do
  cp -aL $a locallibs/
  patchelf --set-rpath '$ORIGIN' locallibs/`basename $a`
done
# not most basic libs
rm -f locallibs/libc.* locallibs/libm.* locallibs/libdl.* \
      locallibs/librt.* locallibs/libpthread* locallibs/libresolve.*

# set the rpath's in all executables
for a in `cat executables `
do
  rp='$ORIGIN/'`dirname \`dirname $a\` | sed -e 's|[^/]*|..|g'`"/locallibs/"
  patchelf --set-rpath $rp $a
done
# correction for ./gap
patchelf --set-rpath '$ORIGIN/locallibs/' gap

rm -rf executables neededlibs

# change absolute paths to allow 'make test...' in GAP root
sed -e 's|'`pwd`'|.|' GNUmakefile > xxx
mv xxx GNUmakefile

# adjust sysinfo.gap and gac
sed -e 's|"/cache/build/gap-rsync/|$GAPROOTPATH"|' < sysinfo.gap > xxx
mv xxx sysinfo.gap
sed -e 's|/cache/build/gap-rsync|$GAPROOTPATH|' < sysinfo.gap > xxx
mv xxx sysinfo.gap
echo 'GAPROOTPATH=`pwd`/' > xxx
cat sysinfo.gap >> xxx
mv xxx sysinfo.gap

sed -e 's|"/cache/build/gap-rsync/|`pwd`"/|' gac > xxx
mv xxx gac
chmod 755 gac

# save versions of GAP and all loadable packages
./gap << ENDOFINPUT
LoadAllPackages();
pl := GAPInfo.PackagesLoaded;; 
l := SortedList(List(RecNames(pl), a-> pl.(a){[3,2]}), 
         {n1,n2}-> LowercaseString(n1[1]) < LowercaseString(n2[1]));
PrintTo("VERSIONS", "GAPVersion := \"",GAPInfo.Version,"\";\n",
"PackageVersions := ", l, ";\n\n");
QUIT;
ENDOFINPUT

cp -a ../../gapsync .

# check if last step worked, maybe gapsync dir is in another position
if test -f gapsync ; then echo DONE; else echo "ERROR: copy gapsync dir to "`pwd` ; fi