boinc/sea/make-sea.sh

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#!/bin/sh
if [ $# -lt 1 ] || [ $# -gt 3 ]; then
echo 'usage: make-sea.sh <archive.tar> [<filename>.sh] [<install-script>.sh]'
exit
fi
# parse optional arguments
if [ -z "$2" ]; then
filename="`uname`_sea.sh"
else
filename="$2"
fi
if [ -z "$3" ]; then
install=install.sh
else
install="$3"
fi
# peek into archive for the install skript
if tar tf "$1" | grep "$install" >/dev/null; then
:
else
echo "the archive \"$1\" doesn't contain the specified install skript \"$install\""
exit
fi
# find out about compression to use
# Linux usually doesn't even have compress, otherwise its standard
if [ `uname` = "Linux" ]; then
compress=gzip
expand=gunzip
else
compress=compress
expand=uncompress
fi
echo '#!/bin/sh
tail +4 < "$0" | '$expand' | tar xf - && /bin/sh '"$install $*"'
exit' > "$filename" &&
$compress < "$1" >> "$filename" &&
chmod +x "$filename"