set branch name

.github/workflows/docker-sha.yml

@@ -8,6 +8,8 @@ on:
       - '*'
 
 name: Docker build and push SHA
+env:
+  BRANCH_NAME: ${{ github.head_ref || github.ref_name }}
 jobs:
   build-and-push:
     runs-on: ubuntu-latest

docker/common

@@ -1,8 +1,12 @@
 #!/usr/bin/env bash
 set -ex
 
-GIT_SHA=$(git -C "$PACKAGE_ROOT" rev-parse --short=7 HEAD)
-GIT_BRANCH=$(git -C "$PACKAGE_ROOT" symbolic-ref --short HEAD)
+GIT_SHA=$(git rev-parse --short=7 HEAD)
+if [[ -v "BRANCH_NAME" ]]; then
+    GIT_BRANCH=${BRANCH_NAME}
+else
+    GIT_BRANCH=$(git symbolic-ref --short HEAD)
+fi
 
 REGISTRY=ghcr.io
 ORG=jameel-institute