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#!/bin/busybox sh
if [ $# -ne 2 ]
then cat <<EOT
Usage: $(basename $0) <land-dir> <sink-dir>
EOT
exit 1
fi
LANDDIR=$1
SINKDIR=$2
cd "$LANDDIR" || exit 2
curtask="(start)"
while true
do
f=$(ls | head -n1)
if [ -z "$f" ]
then sleep 1
continue
fi
if [ ! -f "$f" -o ! -r "$f" ]
then echo "'$LANDDIR/$f' is not a readable file" >&2
exit 2
fi
size=$(stat -c'%s' -- "$f")
task=${f:0:2}
if [ "$curtask" == "$task" ]
then # Next file of an already started task
mv "$f" "$SINKDIR/"
else # Switch to the next task
if [ -d "$SINKDIR" ]
then # Inform sinkcat about end-of-data
touch -- "$SINKDIR/zz"
wait
# sinkcat always rmdir "$SINKDIR" on normal exit
if [ -d "$SINKDIR" ]
then echo "Task $task has ran into troubles" >&2
exit 3
fi
fi
echo "Switching from task $curtask to $task" >&2
curtask=$task
if [ "$task" == "99" ]
then # Normal exit condition
rm -v "$f" >&2
reset
echo "All task completed sucessfully" >&2
exit 0
else # Start a new task
chmod +x -- "$f" # XXX Checks on $f (is a script ?)
sinkcat.sh $SINKDIR | "./$f" &
while [ ! -d "$SINKDIR" ]; do sleep 1; done
rm -v "$f" >&2
fi
fi
done
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