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#!/usr/bin/env bash
set -e
DH_USERNAME="${DOCKERHUB_USERNAME:-conky}"
DOCKERHUB_IMAGE_ID=$DH_USERNAME/$IMAGE_NAME
# Change all uppercase to lowercase
DOCKERHUB_IMAGE_ID=$(echo $DOCKERHUB_IMAGE_ID | tr '[A-Z]' '[a-z]')
# Only build amd64 on PRs, build all platforms on main. The arm builds
# take far too long.
image_platforms="--platform linux/amd64"
push_image=""
cache_tag="pr-cache"
image_tags=()
# Strip git ref prefix from version
VERSION_TAG=$(echo $GITHUB_REF | sed -e 's,.*/\(.*\),\1,')
# Strip "v" prefix from tag name
if [[ "$GITHUB_REF" == refs/tags/* ]]; then
VERSION_TAG=$(echo $VERSION_TAG | sed -e 's/^v//')
fi
image_tags+=("--tag" "$DOCKERHUB_IMAGE_ID:$VERSION_TAG")
# tag as latest on releases
if [[ "$RELEASE" == ON ]]; then
image_tags+=("--tag" "$DOCKERHUB_IMAGE_ID:latest")
fi
# Only push on main
if [[ "$GITHUB_REF" == refs/heads/main ]]; then
push_image="--push"
image_platforms="--platform linux/arm/v7,linux/arm64/v8,linux/amd64"
cache_tag="main-cache"
fi
# Only write to cache if credentials are available
if [[ -z "$DOCKERHUB_TOKEN" ]]; then
write_cache=""
else
write_cache="--cache-to=type=registry,ref=$DOCKERHUB_IMAGE_ID:$cache_tag,mode=max"
fi
docker buildx build \
${push_image} \
${image_platforms} \
--cache-from=type=registry,ref=$DOCKERHUB_IMAGE_ID:$cache_tag \
${write_cache} \
"${image_tags[@]}" \
.
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