minimal AppImage-like portable packaging system
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tarinstall/posix/prepare

150 lines
3.1 KiB

#!/bin/sh -e
# NEEDED: lz4 readelf tar cat awk cut sed sh sort
WORKDIR="$(basename "$1")"
SYS_LIBDIR='/lib'
PRELOAD_SCRIPT='preload'
LIBLIST=$WORKDIR/liblist
SUMFILE=$WORKDIR/checksum
tmpfile=$WORKDIR/tt
die ()
{
echo "$1"
exit
}
getlibs ()
{
tmplist=$WORKDIR/tmplist
touch $LIBLIST
# Take the executable and get the first level dependencies
readelf -d "$1" |
grep NEEDED |
awk '{print $5}' |
sed s/\\[/\ / | sed s/\\]/\ / > $tmplist
# While there are more dependencies
while [ "$(cat $tmplist)" ]; do
# Add them to the master file
cat $LIBLIST $tmplist > $tmpfile
mv -f $tmpfile $LIBLIST
# Copy them to lib/
while read l; do
find -L $SYS_LIBDIR -maxdepth 2 -name "$l" -exec cp -n {} $WORKDIR/lib/ \;
done < $tmplist
# Extract their dependencies
touch $tmpfile
for f in $WORKDIR/lib/*; do
if [ "$(grep -F "$(basename "$f")" "$tmplist")" ]; then
readelf -d "$f" |
grep NEEDED |
awk '{print $5}' |
sed s/\\[/\ / | sed s/\\]/\ / >> $tmpfile
fi
done
sort -u $tmpfile > $tmplist
done
sort -u $LIBLIST > $tmpfile
mv -f $tmpfile $LIBLIST
rm -f $tmplist
}
if ! [ $WORKDIR ]; then
die 'Not enough arguments'
fi
if ! test -d $WORKDIR ; then
die 'Argument is not a directory'
fi
if test -e $WORKDIR/bin; then
if ! test -d $WORKDIR/bin; then
die 'bin/ is not a directory'
fi
else
die 'Directory does not contain bin/'
fi
if ! test -e $WORKDIR/id; then
die 'id file not present'
fi
if ls -1 $WORKDIR/bin; then
for f in $WORKDIR/bin/*; do
if ! test -x $f; then
die "$f is not executable"
fi
done
else
die 'bin/ is empty, there has to be at least one executable'
fi
# Create necessary directories and files
mkdir -p $WORKDIR/lib
mkdir -p $WORKDIR/man
mkdir -p $WORKDIR/ext
touch $WORKDIR/env
# TODO: add usage and error checking
DIRNAME="$WORKDIR"/"$(head -1 $WORKDIR/id | awk '{print $1}')"
if test -s $LIBLIST; then
rm -f $LIBLIST
fi
echo "Fetching dependencies and stripping binaries..."
# TODO: get al binary dependencies from deps file
# Get all dependencies and strip them
for b in $WORKDIR/bin/*; do
getlibs $b
strip $b
done
echo "Stripping libraries..."
for l in $WORKDIR/lib/*; do
strip $l
done
echo "Compressing destination directory..."
if test -d $DIRNAME; then
rm -rf $DIRNAME
fi
mkdir -p $DIRNAME
cp -r $WORKDIR/bin $DIRNAME/
cp -r $WORKDIR/lib $DIRNAME/
cp -r $WORKDIR/man $DIRNAME/
cp -r $WORKDIR/ext $DIRNAME/
cp $WORKDIR/env $DIRNAME/
cp $WORKDIR/id $DIRNAME/
tar -c -f $DIRNAME.tar -C $WORKDIR "$(basename $DIRNAME)"
md5sum -b $DIRNAME.tar | cut -d " " -f1 > $SUMFILE
lz4 --rm -9 -c $DIRNAME.tar > "$DIRNAME".tar.lz4
echo "Injecting payload..."
cat "$PRELOAD_SCRIPT" |
sed s/SUM/"$(cat $SUMFILE)"/ |
sed s/ID/"$(basename "$DIRNAME")"/ |
awk '!/^ *#/ && NF' > tpp
size="$(wc -c tpp | cut -d " " -f1)"
strsize="$(echo "BYTES" | wc -c)"
numsize="$(echo "$size" | wc -c)"
normsize="$(expr "$size" - "$(expr "$strsize" - "$numsize")")"
cat tpp |
sed s/BYTES/"$normsize"/ > tpr
cat tpr "$DIRNAME".tar.lz4 > "$DIRNAME".ti
echo "Cleaning up..."
rm -f tpr tpp
chmod +x "$DIRNAME".ti
rm -rf "$DIRNAME" "$DIRNAME".tar*