From 85dedf1aea0b9ed157625d4ff23a27993ca607d0 Mon Sep 17 00:00:00 2001
From: CrazyMax <crazy-max@users.noreply.github.com>
Date: Mon, 2 Aug 2021 03:37:31 +0200
Subject: [PATCH] Create checksums for artifacts

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>
---
 .github/workflows/build.yml |  1 +
 hack/release                | 11 ++++++++++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 997b8513..56dcbb2f 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -164,6 +164,7 @@ jobs:
           ./hack/release ${{ env.RELEASE_OUT }}
         env:
           PLATFORMS: ${{ env.PLATFORMS }},darwin/amd64,darwin/arm64,windows/amd64,windows/arm64
+          CHECKSUMS: 1
           CACHEDIR_FROM: /tmp/.buildx-cache/${{ env.CACHEKEY_BINARIES }}
       -
         name: Upload artifacts
diff --git a/hack/release b/hack/release
index c91fab71..2d96aad3 100755
--- a/hack/release
+++ b/hack/release
@@ -6,6 +6,7 @@ OUT=${1:-release-out}
 set -eu -o pipefail
 
 : ${PLATFORMS=linux/amd64}
+: ${CHECKSUMS=}
 
 importCacheFlags=""
 if [[ -n "$cacheRefFrom" ]] && [[ "$cacheType" = "local" ]]; then
@@ -25,4 +26,12 @@ buildxCmd build $importCacheFlags \
 if [[ $PLATFORMS =~ "," ]]; then
   mv -f ./$OUT/**/* ./$OUT/
   find ./$OUT -type d -empty -delete
-fi
\ No newline at end of file
+fi
+
+if [ -n "$CHECKSUMS" ]; then
+  if ! type shasum > /dev/null 2>&1; then
+    echo >&2 "ERROR: shasum is required"
+    exit 1
+  fi
+  find ./$OUT/ -type f \( -iname "buildx-*" ! -iname "*darwin*" \) -print0 | sort -z | xargs -r0 shasum -a 256 -b | sed 's# .*/# #' > ./$OUT/checksums.txt
+fi