From 3eb213dc0fdeb41ce4a1a5df3f1f376ad148b115 Mon Sep 17 00:00:00 2001
From: Skydust <evann.jallet@gmail.com>
Date: Wed, 25 Dec 2024 22:43:28 +0100
Subject: [PATCH] Added an export tar option

---
 Dockerfile    | 2 +-
 action.yml    | 3 +++
 entrypoint.sh | 7 ++++++-
 3 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index ae681ce..32597ef 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM public.ecr.aws/docker/library/alpine:3.20
+FROM public.ecr.aws/docker/library/alpine:3.21
 
 RUN apk add --no-cache docker-cli-buildx bash
 
diff --git a/action.yml b/action.yml
index 4a5a535..8d5fd16 100644
--- a/action.yml
+++ b/action.yml
@@ -27,6 +27,9 @@ inputs:
     description: Comma separated list for building platform
     required: false
     default: ""
+  exportTar:
+    description: Whether to export the file as a tar image
+    required: false
 
 # Define your outputs here.
 outputs:
diff --git a/entrypoint.sh b/entrypoint.sh
index bb7c5ce..6292fef 100644
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -6,6 +6,7 @@ INPUT_PUSH_IMAGE=$push
 INPUT_PULL_CACHE=$pullCache
 INPUT_DOCKERFILE_PATH=$path
 INPUT_PLATFORM=$platform
+INPUT_EXPORT_TAR=$exportTar
 
 set -e
 
@@ -43,6 +44,10 @@ if [ "$INPUT_PULL_CACHE" = "true" ]; then
   echo "Using docker image cache ${IMAGE_CACHE_NAME}"
 fi
 
+if [ -n "$INPUT_EXPORT_TAR" ]; then
+  DOCKER_BUILD_OPTIONS+=("--output" "type=docker,dest=$INPUT_EXPORT_TAR")
+fi
+
 DOCKER_BUILD_OPTIONS+=("${INPUT_DOCKERFILE_PATH}")
 # shellcheck disable=SC2145
 echo "Running docker buildx with options: ${DOCKER_BUILD_OPTIONS[@]}"
@@ -52,6 +57,6 @@ docker buildx build "${DOCKER_BUILD_OPTIONS[@]}"
 echo "Cleaning up docker"
 docker system prune --all --force
 
-echo "imageName=${IMAGE_NAME}" >>"$GITEA_OUTPUT"
+echo "imageName=${IMAGE_NAME}" >> "$GITEA_OUTPUT"
 
 exit 0