218 lines
3.6 KiB
Bash
218 lines
3.6 KiB
Bash
#
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# Common shell functions which may be used by any hook script
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#
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# If you find that a distribution-specific hook script or two
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# are doing the same thing more than once it should be added here.
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#
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# This script also includes a logging utility which you're encouraged
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# to use.
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#
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# Steve
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# --
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#
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#
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# If we're running verbosely show a message, otherwise swallow it.
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#
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logMessage ()
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{
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message="$*"
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if [ ! -z "${verbose}" ]; then
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echo $message
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fi
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}
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#
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# Test the given condition is true, and if not abort.
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#
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# Sample usage:
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# assert "$LINENO" "${verbose}"
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#
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assert ()
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{
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lineno="?"
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if [ -n "${LINENO}" ]; then
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# our shell defines variable LINENO, great!
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lineno=$1
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shift
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fi
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if [ ! $* ] ; then
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echo "assert failed: $0:$lineno [$*]"
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exit
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fi
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}
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#
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# Install a Debian package via apt-get.
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#
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installDebianPackage ()
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{
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prefix=$1
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package=$2
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#
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# Log our options
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#
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logMessage "Installing Debian package ${package} to prefix ${prefix}"
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#
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# We require a package + prefix
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#
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assert "$LINENO" "${package}"
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assert "$LINENO" "${prefix}"
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#
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# Prefix must be a directory.
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#
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assert "$LINENO" -d ${prefix}
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#
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# Disable the start-stop-daemon
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#
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disableStartStopDaemon
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#
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# Install the package
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#
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DEBIAN_FRONTEND=noninteractive chroot ${prefix} /usr/bin/apt-get --yes --force-yes install ${package}
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#
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# Re-enable the start-stop-daemon
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#
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enableStartStopDaemon
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}
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#
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# Disable the start-stop-daemon
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#
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disableStartStopDaemon ()
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{
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local prefix="$1"
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assert "$LINENO" "${prefix}"
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local daemonfile="${prefix}/sbin/start-stop-daemon"
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mv "${daemonfile}" "${daemonfile}.REAL"
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echo '#!/bin/sh' > "${daemonfile}"
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echo "echo \"Warning: Fake start-stop-daemon called, doing nothing\"" >> "${daemonfile}"
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chmod 755 "${daemonfile}"
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logMessage "Start Stop Daemon disabled off."
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}
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#
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# Enable the start-stop-daemon
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#
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enableStartStopDaemon ()
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{
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local prefix=$1
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assert "$LINENO" "${prefix}"
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local daemonfile="${prefix}/sbin/start-stop-daemon"
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#
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# If the disabled file is present then enable it.
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#
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if [ -e "${daemonfile}.REAL" ]; then
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mv "${daemonfile}.REAL" "${daemonfile}"
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logMessage "Start Stop Daemon enabled on."
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fi
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}
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#
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# Remove a Debian package.
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#
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removeDebianPackage ()
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{
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prefix=$1
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package=$2
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#
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# Log our options
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#
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logMessage "Purging Debian package ${package} from prefix ${prefix}"
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#
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# We require a package + prefix
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#
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assert "$LINENO" "${package}"
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assert "$LINENO" "${prefix}"
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#
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# Prefix must be a directory.
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#
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assert "$LINENO" -d ${prefix}
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#
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# Purge the package
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#
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chroot ${prefix} /usr/bin/dpkg --purge ${package}
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}
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#
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# Install a CentOS4 package via yum
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#
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installCentOS4Package ()
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{
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prefix=$1
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package=$2
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#
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# Log our options
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#
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logMessage "Installing CentOS4 ${package} to prefix ${prefix}"
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#
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# We require a package + prefix
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#
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assert "$LINENO" "${package}"
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assert "$LINENO" "${prefix}"
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#
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# Prefix must be a directory.
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#
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assert "$LINENO" -d ${prefix}
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#
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# Install the package
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#
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chroot ${prefix} /usr/bin/yum -y install ${package}
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}
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#
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# Install a package upon a gentoo system via emerge.
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#
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# TODO: STUB
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#
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installGentooPackage ()
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{
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prefix=$1
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package=$2
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#
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# Log our options
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#
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logMessage "Installing Gentoo package ${package} to prefix ${prefix}"
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logMessage "NOTE: Not doing anything - this is a stub - FIXME"
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}
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