From e0b6a109319e47d63dbca411eeb51d06e1f27bad Mon Sep 17 00:00:00 2001
From: "Stanislav N. aka pztrn" <pztrn@pztrn.name>
Date: Tue, 28 Jun 2022 22:10:56 +0500
Subject: [PATCH] Add alpine:3.16.0 for mirrorring and add ability to check if
 image mirrorred.

---
 images/alpine.sh |  2 ++
 mirror.sh        | 15 ++++++++++++++-
 2 files changed, 16 insertions(+), 1 deletion(-)
 create mode 100644 images/alpine.sh

diff --git a/images/alpine.sh b/images/alpine.sh
new file mode 100644
index 0000000..0d86259
--- /dev/null
+++ b/images/alpine.sh
@@ -0,0 +1,2 @@
+#!/usr/bin/env bash
+echo "alpine:3.16.0"
diff --git a/mirror.sh b/mirror.sh
index 7d4f9ca..d99a259 100755
--- a/mirror.sh
+++ b/mirror.sh
@@ -51,9 +51,15 @@ function get_amd64_image() {
 	image_name=$(echo "${image}" | cut -d":" -f 1)
 	image_version=$(echo "${image}" | cut -d":" -f 2)
 
+	# Check if amd64 layers should be fetched.
+	if docker manifest inspect "${REMOTE_IMAGE}-amd64" &> /dev/null; then
+		echo -e "\t* Layers for amd64 architecture for this image exist."
+
+		return
+	fi
+
 	echo -ne "\t* Getting amd64 layers... "
 
-	# arm64 layers might be missing. So we just put "FAIL!" here and do nothing else.
 	if ! docker pull --platform=linux/amd64 "${image}" &> /dev/null; then
 		echo "FAIL!"
 
@@ -79,6 +85,13 @@ function get_arm64_image() {
 	image_name=$(echo "${image}" | cut -d":" -f 1)
 	image_version=$(echo "${image}" | cut -d":" -f 2)
 
+	# Check if arm64 layers should be fetched.
+	if docker manifest inspect "${REMOTE_IMAGE}-arm64" &> /dev/null; then
+		echo -e "\t* Layers for arm64 architecture for this image exist."
+
+		return
+	fi
+
 	echo -ne "\t* Getting arm64 layers... "
 
 	# arm64 layers might be missing. So we just put "FAIL!" here and do nothing else.