build

#!/bin/bash

set -e

source .envrc

DIR=${DIR:=.}
REGISTRY=${REGISTRY:="$NAME"}
ARCHS=${ARCHS:='amd64 arm64'}

# For main Sqitch build, the main tag is "latest" and there
# is no sub-package.
PKG=""
TAG="latest"
if [ "$DIR" != "." ]; then
    # For other builds, we need to append a sub-package name and use the
    # diretory name as the main tag.
    cd $DIR
    PKG="-$DIR"
    TAG="$DIR"
fi

# Always include "latest" and the version.
tagopt=(
    --tag "${REGISTRY}/${NAME}:${TAG}"
    --tag "${REGISTRY}/${NAME}:v${VERSION}${PKG}"
)

# Include the git tag if differnt from the version.
if [ "$GITHUB_REF_TYPE" == "tag" ]; then
    GIT_TAG=${GITHUB_REF/refs\/tags\//}
    if [ "$GIT_TAG" != "$VERSION" ]; then
        tagopt+=(--tag "${REGISTRY}/${NAME}:${GIT_TAG}${PKG}")
    fi
fi

# Build and export imaages to Docker for all supported architectures.
for arch in $ARCHS; do
    printf "Building for linux/%s\n" "${arch}"
    docker buildx build --platform="linux/${arch}" --pull --load --progress=plain \
    --label org.opencontainers.image.created=$(date -u +"%Y-%m-%dT%H:%M:%SZ") \
    --label org.opencontainers.image.authors="${AUTHORS}" \
    --label org.opencontainers.image.url="${URL}" \
    --label org.opencontainers.image.documentation="${DOCS}" \
    --label org.opencontainers.image.source="${SOURCE}" \
    --label org.opencontainers.image.version="v${VERSION}" \
    --label org.opencontainers.image.revision="$(git rev-parse --abbrev-ref HEAD)" \
    --label org.opencontainers.image.vendor="${VENDOR}" \
    --label org.opencontainers.image.licenses="${LICENSE}" \
    --label org.opencontainers.image.ref.name="${NAME}${PKG}-v${VERSION}" \
    --label org.opencontainers.image.title="${TITLE}" \
    --label org.opencontainers.image.description="${DESCRIPTION}" \
    "${tagopt[@]}" \
    --build-arg "VERSION=${VERSION}" \
    "$@" .
done