deploy-server

#!/bin/bash

set -o errexit -o nounset -o pipefail

touch lock-server
exec {fd}< lock-server
if ! flock -n $fd; then
    echo already deploying server >&2
    exit 1
fi

rm -rf build
./gradlew build

remote=root@attestation.app
path=/opt/attestation
active=$(ssh $remote readlink $path/deploy)

if [[ $active = $path/deploy_a ]]; then
    target=$path/deploy_b
else
    target=$path/deploy_a
fi

echo
echo active is $active
echo target is $target
echo

ssh $remote "rm -rf $target && cp -a $active $target"
rsync -prcv --chmod=D755,F644 --fsync --preallocate systemd/system/ $remote:/etc/systemd/system
rsync -prcv --chmod=D755,F644 --delete --fsync --preallocate build/libs/ $remote:$target
ssh $remote "ln -snf $target $path/deploy && sync $path/deploy && systemctl daemon-reload && systemctl restart attestation"

echo
echo active is now $target