ci: move build into bash file

.github/scripts/build-images.sh

@@ -0,0 +1,37 @@
+#!/bin/bash
+
+set -euo pipefail
+
+get_digest() {
+  local variant="$1"
+  local arch="$2"
+  find "/tmp/digests/digests-${variant}-${arch}" -type f -exec basename {} \;
+}
+
+create_manifest_list() {
+  local namespace="$1"
+  local variant="$2"
+  local digest_amd64="$3"
+  local digest_arm64="$4"
+
+  docker buildx imagetools create \
+    "$(jq -cr ".target.\"docker-metadata-action\".tags | map(select(startswith(\"${namespace}\")) | \"-t \" + .) | join(\" \")" "/tmp/bake-meta-${variant}-amd64.json")" \
+    "${namespace}@sha256:${digest_amd64}" \
+    "${namespace}@sha256:${digest_arm64}"
+}
+
+# Get list of unique variants
+mapfile -t variants < <(find . -maxdepth 1 -name "bake-meta-*.json" -exec basename {} \; | sed -E 's/bake-meta-//; s/-amd64.json|-arm64.json//g' | sort -u)
+
+for variant in "${variants[@]}"; do
+  echo "Processing variant: $variant"
+
+  # Fetch digests for amd64 and arm64 architectures
+  digest_amd64=$(get_digest "$variant" "amd64")
+  digest_arm64=$(get_digest "$variant" "arm64")
+  echo "Digest AMD64: $digest_amd64"
+  echo "Digest ARM64: $digest_arm64"
+
+  create_manifest_list "${DOCKER_NAMESPACE}" "$variant" "$digest_amd64" "$digest_arm64"
+  create_manifest_list "${GHCR_NAMESPACE}" "$variant" "$digest_amd64" "$digest_arm64"
+done

.github/workflows/build.yml

@@ -176,27 +176,7 @@ jobs:
           buildkitd-flags: "--debug"
 
       - name: 🚀 Create manifest list and push
-        working-directory: /tmp
-        run: |
-          variants=($(ls bake-meta-*.json | sed -E 's/bake-meta-//; s/-amd64.json|-arm64.json//g' | sort -u))
-          for variant in "${variants[@]}"; do
-
-            # Fetch digests for amd64 and arm64 architectures
-            DIGEST_AMD64=$(basename $(ls /tmp/digests/digests-${variant}-amd64/*))
-            DIGEST_ARM64=$(basename $(ls /tmp/digests/digests-${variant}-arm64/*))
-            echo "Digest AMD64: $DIGEST_AMD64"
-            echo "Digest ARM64: $DIGEST_ARM64"
-
-            # Create the manifest list for Docker Hub
-            docker buildx imagetools create $(jq -cr ".target.\"docker-metadata-action\".tags | map(select(startswith(\"${DOCKER_NAMESPACE}\")) | \"-t \" + .) | join(\" \")" /tmp/bake-meta-${variant}-amd64.json) \
-              "${DOCKER_NAMESPACE}@sha256:${DIGEST_AMD64}" \
-              "${DOCKER_NAMESPACE}@sha256:${DIGEST_ARM64}"
-
-            # Create the manifest list for GHCR
-            docker buildx imagetools create $(jq -cr ".target.\"docker-metadata-action\".tags | map(select(startswith(\"${GHCR_NAMESPACE}\")) | \"-t \" + .) | join(\" \")" /tmp/bake-meta-${variant}-amd64.json) \
-              "${GHCR_NAMESPACE}@sha256:${DIGEST_AMD64}" \
-              "${GHCR_NAMESPACE}@sha256:${DIGEST_ARM64}"
-
-          done
+        shell: bash
+        run: .github/scripts/build-images.sh
 
 ...