deploy.sh

# Deploys the LDM to a remote host. Assumes that this script is in the top-level
# development source-directory and that the necessary files already exist.
#
# Usage:
#       $0 host [configOpts]
#
# where:
#       host             Name of the remote computer on which to deploy the LDM
#       configOpts       Optional configure(1) script options

set -e # terminate on error

host=${1:?Host name not specified}
configOpts=$2

# For convenience, make the directory that contains this script be the current
# working directory.
cd `dirname $0`

# Copy the source-distribution to the remote host.
#
scp $SOURCE_DISTRO_NAME $USER_NAME@$host:
trap "ssh -T $USER_NAME@$host rm -f $SOURCE_DISTRO_NAME; `trap -p ERR`" ERR

# bash(1) is explicitly used for remote executions because 1) not all LDM users
# have the same user-shell; and 2) not all sh(1)-s behave the same -- especially
# in the handling of substitutions, quotes, and escapes.

# As the LDM user on the remote host, unpack, build, and install the package.
#
ssh -T $USER_NAME@$host bash --login <<EOF
    set -x -e
    gunzip -c $SOURCE_DISTRO_NAME | (mkdir -p $PKG_ID &&
        cd $PKG_ID && tar -xf - && rm -rf src && mv -f $PKG_ID src)
    rm $SOURCE_DISTRO_NAME
    cd $RELPATH_DISTRO_SOURCE_DIR
    ./configure --disable-root-actions ${configOpts} CFLAGS=-g
    make install
EOF

# As the superuser on the remote host, perform the root actions.
#
ssh -T root@$host bash --login <<EOF
    set -x -e
    ldmHome=\`awk -F: '\$1~/^$USER_NAME\$/{print \$6}' /etc/passwd\`
    cd \$ldmHome/$RELPATH_DISTRO_SOURCE_DIR
    make root-actions
EOF

# As the LDM user on the remote host, execute the new package.
#
ssh -T $USER_NAME@$host bash --login <<EOF
    set -x -e
    ldmadmin isrunning && ldmadmin stop
    rm -f runtime
    ln -s $PKG_ID runtime
    ldmadmin start
EOF