source: tags/confman-1.5.6a2/confsync.sh @ 168

#! /bin/bash

##
# This script obtains the latest "export" from confman and installs
# it onto the system. It is intended to be used in crons as the
# configuration pulling mechanism.
#
# Author:   Chris Cowart <ccowart@rescomp.berkeley.edu>
#           4 December 2006
#
# $Id$
##

# Try loading a development library first
if [ -r ./confmancommon.sh ] ; then
    echo "Loading development library from current working directory." >&2
    . ./confmancommon.sh
elif [ -r /usr/local/rescomp/lib/confmancommon.sh ] ; then
    . /usr/local/rescomp/lib/confmancommon.sh
else
    echo "Can't find confmancommon.sh. Exiting." >&2
fi

# If we're in debug mode, we should log stderr messages to the logger
# as well. Otherwise, we send them to the bit bucket.
if $DEBUG ; then
    exec 1>&2
else
    exec 1>/dev/null
fi

# Set up our "Working Copy"
tarball=$(conf_fetch)
if ! [ -s $tarball ] ; then
    echo "Could not fetch the tarball." >&2
    exit 1
fi

tmpdir=$(mktemp -d -t confman)

tar -xzf $tarball -C $tmpdir
rm -rf $tarball
WORK_PATH="$tmpdir"

tar_revision=`conf_revision`
sys_revision=`conf_sysrev`
last_action=$(conf_lastact)

if [ "x$last_action" = "xinstall" ] && [ $tar_revision -lt $sys_revision ]
then
    echo "Error: File system may be dirty." \
        "A commit operation is recommended." >&2
    echo "Error: $tarball is out of date. Exiting without making changes." >&2
    conf_markdirty
    rm -rf $tmpdir
    exit 1
fi

if [ $tar_revision -lt $sys_revision ] ; then
    echo "System is up to date." | conf_logger
    rm -rf $tmpdir
    exit 0
fi

echo "Sync operation started" | conf_logger
for layer in $LAYERS ; do
        echo "Rolling on $layer..."
        conf_rollout $layer || conf_cleanExit
done
for file in $SINGULARITIES ; do
    echo "Assembing singularity $file..."
        conf_assemble_sing $file || conf_cleanExit
done
conf_markclean
conf_recordAction sync
echo "Sync operation finished successfully" | conf_logger

rm -rf $tmpdir