echo "mc is already installed"
	else
		echo "Installing mc:"
		go install github.com/minio/mc@latest
	fi

	if [ ! -x ./minio.${OLD_VERSION} ]; then
		echo "Downloading minio.${OLD_VERSION} binary"
		curl -o minio.${OLD_VERSION} ${OLD_BINARY_LINK}
		chmod +x minio.${OLD_VERSION}
	fi

	if [ -z "$_MINIO_LDAP_TEST_SERVER" ]; then
		export _MINIO_LDAP_TEST_SERVER=localhost:1389

	verify_checksum_mc ./minio minio/minio-test/to-read/minio

	curl -s http://127.0.0.1:9000/minio-test/to-read/hosts | sha256sum

	MINIO_VERSION=dev docker-compose -f "buildscripts/upgrade-tests/compose.yml" stop
}

main() {
	MINIO_VERSION=dev docker-compose -f "buildscripts/upgrade-tests/compose.yml" up -d --build

	add_alias

function purge() {
	rm -rf "$1"
}

function __init__() {
	echo "Initializing environment"
	mkdir -p "$WORK_DIR"
	mkdir -p "$MINIO_CONFIG_DIR"

	## version is purposefully set to '3' for minio to migrate configuration file
	echo '{"version": "3", "credential": {"accessKey": "minio", "secretKey": "minio123"}, "region": "us-east-1"}' >"$MINIO_CONFIG_DIR/config.json"

	if [ ! -f /tmp/mc ]; then

	# remove mc source.
	purge "${MC_BUILD_DIR}"

	shred -n 1 -s 1M - 1>"$FILE_1_MB" 2>/dev/null
	shred -n 1 -s 65M - 1>"$FILE_65_MB" 2>/dev/null

	## version is purposefully set to '3' for minio to migrate configuration file
	echo '{"version": "3", "credential": {"accessKey": "minio", "secretKey": "minio123"}, "region": "us-east-1"}' >"$MINIO_CONFIG_DIR/config.json"

	installed_git_version=$(git version | perl -ne '$_ =~ m/git version (.*?)( |$)/; print "$1\n";')
	if ! check_minimum_version "${GIT_VERSION}" "${installed_git_version}"; then
		echo "Git version '${installed_git_version}' is not supported. Minimum supported version: ${GIT_VERSION}"
		exit 1
	fi
}

main() {
	## Check for supported arch
	assert_is_supported_arch

	## Check for supported os

}

function purge() {
	rm -rf "$1"
}

function __init__() {
	echo "Initializing environment"
	mkdir -p "$WORK_DIR"
	mkdir -p "$MINIO_CONFIG_DIR"

	## version is purposefully set to '3' for minio to migrate configuration file
	echo '{"version": "3", "credential": {"accessKey": "minio", "secretKey": "minio123"}, "region": "us-east-1"}' >"$MINIO_CONFIG_DIR/config.json"
}

function perform_test() {

# create a replication admin user : repladmin
mc admin user add source repladmin repladmin123

# create a replication policy for repladmin
cat >repladmin-policy-source.json <<EOF
{
    "Version": "2012-10-17",
    "Statement": [
    {
        "Action": [
            "admin:SetBucketTarget",
            "admin:GetBucketTarget"
        ],
        "Effect": "Allow",
        "Sid": ""
     }, 
     {

./mc mirror internal myminio/versioned/ --quiet >/dev/null

## Soft delete (creates delete markers)
./mc rm -r --force myminio/versioned >/dev/null

## mirror again to create another set of version on top
./mc mirror internal myminio/versioned/ --quiet >/dev/null

expected_checksum=$(./mc cat internal/dsync/drwmutex.go | md5sum)

user_count=$(./mc admin user list myminio/ | wc -l)

## we do not need to fail here, since we are going to test
## upgrading to master, healing and being able to recover
## the last version.
if [ $failed_count_site1 -ne 0 ]; then
	echo "failed with multipart on site1 uploads ${failed_count_site1}"
fi

if [ $failed_count_site2 -ne 0 ]; then
	echo "failed with multipart on site2 uploads ${failed_count_site2}"

	exit 1
fi

./mc mb sitea/bucket-version/
./mc mb siteb/bucket-version

./mc version enable sitea/bucket-version/
./mc version enable siteb/bucket-version/

echo "adding replication rule for site a -> site b"
./mc replicate add sitea/bucket-version/ \
	--remote-bucket http://minio:minio123@127.0.0.1:9004/bucket-version

./mc mb sitea/bucket-version/directory/

sleep 2s