#!/bin/sh

# build.sh checks if docker image with same sha256 exists remotely.
# if exists, do nothing, if not, build the image

commit_sha="${CI_COMMIT_SHA}"
registry_uri="${CI_PROJECT_URL}"
image_name="${CI_REGISTRY_IMAGE}"
arch="${ARCH}"

echo "* Building docker image ${image_name}:${commit_sha}-${arch}..."

if docker manifest inspect "${image_name}:${commit_sha}-${arch}" >/dev/null; then
        echo "* Docker image ${image_name}:${commit_sha}-${arch} is already exists on remote, no rebuilt necessary."
        exit 0
fi

docker build --pull --build-arg VCS_REF=${commit_sha} --build-arg VCS_URL=${registry_uri} --tag ${image_name}:${commit_sha}-${arch} .
docker push ${image_name}:${commit_sha}-${arch}