From 33cd306ec29e1006f0623bd8e7655d0356df3595 Mon Sep 17 00:00:00 2001
From: Louis Orleans <louis@orleans.io>
Date: Fri, 1 Sep 2023 11:05:51 -0700
Subject: [PATCH] =?UTF-8?q?=F0=9F=92=9A=20fix=20platforms=202:=20electric?=
 =?UTF-8?q?=20boogaloo=3F?=
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---
 .github/workflows/build-publish.yaml          |  3 ++-
 .../scripts/convert-arch-to-platform.sh       | 23 +++++++++++++++++++
 2 files changed, 25 insertions(+), 1 deletion(-)
 create mode 100755 .github/workflows/scripts/convert-arch-to-platform.sh

diff --git a/.github/workflows/build-publish.yaml b/.github/workflows/build-publish.yaml
index 549efa7..17a4a03 100644
--- a/.github/workflows/build-publish.yaml
+++ b/.github/workflows/build-publish.yaml
@@ -43,7 +43,8 @@ jobs:
       - name: 'Set target build platforms 📝'
         id: 'target-platforms'
         run: |
-          echo "target_platforms=linux/amd64,linux/${{ steps.qemu.outputs.platforms }}/v8" >> "$GITHUB_OUTPUT"
+          qemu_platforms="$(.github/workflows/scripts/convert-arch-to-platform.sh "${{ steps.qemu.outputs.platforms }}")"
+          echo "target_platforms=$qemu_platforms" >> "$GITHUB_OUTPUT"
 
       - name: 'Build container 🐳'
         id: 'build'
diff --git a/.github/workflows/scripts/convert-arch-to-platform.sh b/.github/workflows/scripts/convert-arch-to-platform.sh
new file mode 100755
index 0000000..1f7449e
--- /dev/null
+++ b/.github/workflows/scripts/convert-arch-to-platform.sh
@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+
+qemu_platforms=""
+
+for p in $(echo "$1" | tr ',' '\n'); do
+  v=""
+  case "$p" in
+    "linux/arm64")
+      v="$p/v8" ;;
+    # Skip platforms we don't need
+    "linux/386") ;;
+    *)
+      v="$p" ;;
+  esac
+
+  if [ -z "$qemu_platforms" ]; then
+    qemu_platforms="$v"
+  else
+    qemu_platforms="$qemu_platforms,$v"
+  fi
+done
+
+echo "$qemu_platforms"