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#! /bin/sh
# install_prereq: a script to install distribution-specific
# prerequirements
set -e
usage() {
echo "$0: a script to install distribution-specific prerequirement"
echo 'Revision: $Id$'
echo ""
echo "Usage: $0: Shows this message."
echo "Usage: $0 test Prints commands it is about to run."
echo "Usage: $0 install Really install."
}
PACKAGES_DEBIAN="build-essential libnewt-dev libusb-dev modemp3d"
PACKAGES_RH="gcc newt-devel libusb-devel"
KVERS=`uname -r`
case "$1" in
test) testcmd=test_cmd ;;
install) testcmd='' ;;
'') usage; exit 0 ;;
*) usage; exit 1 ;;
esac
NOTHING_TO_INSTALL=true
test_cmd() {
NOTHING_TO_INSTALL=false
echo "$@"
}
# Fixme: should be done by apt and not by dpkg?
check_installed_debs() {
dpkg-query -W --showformat '${Status} ${Package}\n' "$@" 2>/dev/null \
| awk '/ not-installed/{print $4}'
}
# parsing the output of yum is close to impossible.
# We'll use rpm and hope for the best:
check_installed_rpms() {
for pack in "$@"
do
if ! rpm -q $pack >/dev/null 2>/dev/null
then echo $pack
fi
done
}
has_kernel_source() {
test -r /lib/modules/$KVERS/build/.config
}
in_test_mode() {
test "$testcmd" != ''
}
handle_debian() {
# echo "# Distribution is Debian or compatible"
kernel_package=''
extra_packs=`check_installed_debs $PACKAGES_DEBIAN`
if ! has_kernel_source; then
kernel_package="linux-headers-$KVERS"
debian_release=`cat /etc/debian_version`
case "$debian_release" in
3.1) kernel_package="kernel-headers-$KVERS";;
esac
echo "# Kernel source not found. Installing $kernel_package"
fi
if [ "$extra_packs$kernel_package" = '' ]; then
return
fi
$testcmd apt-get install -y $extra_packs $kernel_package
}
handle_rh() {
# echo "# Distribution is RedHat or similar."
kernel_package=''
extra_packs=`check_installed_rpms $PACKAGES_RH`
if ! has_kernel_source; then
kern_str='' # extra "kernel version"
case "$KVERS" in
*smp*) kern_str='-smp';;
*PAE*) kern_str='-PAE';;
*xen*) kern_str='-xen';;
esac
kernel_package="kernel$kern_str-devel-$KVERS"
echo "# Kernel source not found. Installing $kernel_package"
echo "# if you get an error for the following command, consider"
echo "#"
echo "#yum install -y kernel$kern_str kernel$kern_str-devel"
echo "#"
echo "# and then reboot to upgrade to the newly installed kernel."
fi
if [ "$extra_packs$kernel_package" = '' ]; then
return
fi
$testcmd yum install -y $extra_packs $kernel_package
}
if in_test_mode; then
echo "#############################################"
echo "## $1: test mode."
echo "## Use the commands here to install your system."
echo "#############################################"
fi
# handle the easy case of Debians first
if [ -r /etc/debian_version ]; then
handle_debian
elif [ -r /etc/redhat-release ]; then
handle_rh
fi
echo "#############################################"
if in_test_mode; then
if $NOTHING_TO_INSTALL; then
echo "## $1 completed successfully ((In test mode) "
else
echo "## $1: some extra packages are needed to build zaptel"
exit 1
fi
else
echo "## $1 completed successfully"
fi
echo "#############################################"
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