From 6bdc4aa8a61a05736ed7dd5a9c2608ecbba426fa Mon Sep 17 00:00:00 2001
From: Charles <charles@zyndex.co.uk>
Date: Wed, 5 May 2021 13:22:00 +0100
Subject: [PATCH] Set branch env.

---
 .github/workflows/docker-build-master.yaml | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/docker-build-master.yaml b/.github/workflows/docker-build-master.yaml
index d94037bb..de398537 100644
--- a/.github/workflows/docker-build-master.yaml
+++ b/.github/workflows/docker-build-master.yaml
@@ -13,6 +13,8 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v2
+      - name: Set branch env.
+        run: echo "BRANCH=${GITHUB_REF##*/}" >> $GITHUB_ENV
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v1
       - name: Set up Docker Buildx
@@ -30,4 +32,6 @@ jobs:
           file: ./docker/Dockerfile
           platforms: linux/386,linux/amd64,linux/arm/v6,linux/arm64,linux/arm/v7
           push: true
-          tags: registry.nova.do/shairport-sync:unstable-${GITHUB_REF##*/} # ${GITHUB_REF##*/} gets the current branch name.
\ No newline at end of file
+          tags: registry.nova.do/shairport-sync:unstable-${{ env.BRANCH }}
+          build-args: |
+            BRANCH=${{ env.BRANCH }}
\ No newline at end of file