add script

Makefile

@@ -40,3 +40,6 @@ buildx-5.6:
 	--build-arg SWIFT_LINT_REVISION=$(shell cat .github/matrix.json | jq -rc '.swiftlint_supported_version."5.6"') \
 	--tag $(DOCKER_USER)/$(IMAGE_NAME):5.6 \
 	.
+
+arm64:
+	@scripts/build_and_push_arm64_image.sh $(DOCKER_USER) $(IMAGE_NAME)

scripts/build_and_push_arm64_image.sh

@@ -0,0 +1,70 @@
+#!/bin/zsh
+
+if [[ $(arch) != "arm64" ]]; then
+    echo "\e[31mThis script must be run on an arm64 machine.\e[m"
+    exit 1
+fi
+
+DOCKER_USER=$1
+IMAGE_NAME=$2
+REPO_ROOT=$(git rev-parse --show-toplevel)
+
+MATRIX_JSON=$(cat "$REPO_ROOT"/.github/matrix.json | jq -rc .)
+LATEST_VERSION=$(echo "$MATRIX_JSON" | jq -r '.swift_version[0]')
+
+for version in $(echo "$MATRIX_JSON" | jq -r '.swift_version[]'); do
+    # Less than 5.6 doesn't support arm64
+    if [[ $(($version)) -lt 5.6 ]]; then
+        continue
+    fi
+
+    docker manifest rm "$DOCKER_USER/$IMAGE_NAME:$version" > /dev/null 2>/dev/null
+    docker manifest inspect "$DOCKER_USER/$IMAGE_NAME:$version" > /dev/null 2>/dev/null
+    if [[ $? -ne 0 ]]; then
+        # Pull amd64 image and re-tag
+        echo "\e[32mFetching amd64 image started...\e[m"
+        docker pull --platform=linux/amd64 "$DOCKER_USER/$IMAGE_NAME:$version"
+        echo "\e[32mFetching amd64 image finished!\e[m"
+        AMD64_IMAGE_ID=$(docker images --format "{{.Repository}}:{{.Tag}} {{.ID}}" | grep "$DOCKER_USER/$IMAGE_NAME:$version" | grep -v arm64 | awk '{print $2}')
+        docker tag $AMD64_IMAGE_ID "$DOCKER_USER/$IMAGE_NAME:$version-amd64"
+        docker push "$DOCKER_USER/$IMAGE_NAME:$version-amd64"
+        echo "\e[32mRe-tagging amd64 image finished!\e[m"
+
+        # Build arm64 image
+        echo "\e[32mBuilding arm64 image started...\e[m"
+        docker build --build-arg SWIFT_VERSION=$version -t "$DOCKER_USER/$IMAGE_NAME:$version-arm64" -f "$REPO_ROOT/Dockerfile" "$REPO_ROOT"
+        docker push "$DOCKER_USER/$IMAGE_NAME:$version-arm64"
+        echo "\e[32mBuilding arm64 image finished!\e[m"
+
+        # Create manifest
+        echo "\e[32mCreating manifest started...\e[m"
+        docker manifest create "$DOCKER_USER/$IMAGE_NAME:$version" \
+            --amend "$DOCKER_USER/$IMAGE_NAME:$version-amd64" \
+            --amend "$DOCKER_USER/$IMAGE_NAME:$version-arm64"
+        docker manifest push "$DOCKER_USER/$IMAGE_NAME:$version"
+        echo "\e[32mCreating manifest finished!\e[m"
+
+        # Create latest manifest
+        if [[ "$version" == "$LATEST_VERSION" ]]; then
+            echo "\e[32mCreating latest manifest...\e[m"
+            docker manifest create "$DOCKER_USER/${IMAGE_NAME}:latest" \
+                --amend "$DOCKER_USER/$IMAGE_NAME:$version-amd64" \
+                --amend "$DOCKER_USER/$IMAGE_NAME:$version-arm64"
+            docker manifest push "$DOCKER_USER/${IMAGE_NAME}:latest"
+        fi
+
+        # Clean up
+        docker image rm "$DOCKER_USER/$IMAGE_NAME:$version" \
+            "$DOCKER_USER/$IMAGE_NAME:$version-amd64" \
+            "$DOCKER_USER/$IMAGE_NAME:$version-arm64"
+
+        # Clean up on Docker Hub
+        DOCKER_HUB_TOKEN=`curl -s -H "Content-Type: application/json" -X POST -d "{\"username\": \"$DOCKER_USER\",\"password\": \"$DOCKER_HUB_PASSWORD\"}" "https://hub.docker.com/v2/users/login/" | jq -r .token`
+        curl -sS "https://hub.docker.com/v2/repositories/${DOCKER_USER}/${IMAGE_NAME}/tags/${version}-amd64/" \
+            -X DELETE \
+            -H "Authorization: JWT ${DOCKER_HUB_TOKEN}"
+        curl -sS "https://hub.docker.com/v2/repositories/${DOCKER_USER}/${IMAGE_NAME}/tags/${version}-arm64/" \
+            -X DELETE \
+            -H "Authorization: JWT ${DOCKER_HUB_TOKEN}"
+    fi
+done