Add @ludeeus ShellCheck GitHub Action

.github/workflows/shellcheck.yml

@@ -0,0 +1,16 @@
+on:
+  pull_request:
+    types: [opened, reopened]
+
+permissions: {}
+
+jobs:
+  shellcheck:
+    name: Shellcheck
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Run ShellCheck
+        uses: ludeeus/action-shellcheck@master
+        env:
+          SHELLCHECK_OPTS: -e SC1008

amazon-s3-backup/run.sh

@@ -14,8 +14,10 @@ local_backups_to_keep="$(bashio::config 'local_backups_to_keep' '3')"
 monitor_path="/backup"
 jq_filter=".backups|=sort_by(.date)|.backups|reverse|.[$local_backups_to_keep:]|.[].slug"
 
-export AWS_ACCESS_KEY_ID="$(bashio::config 'aws_access_key')"
-export AWS_SECRET_ACCESS_KEY="$(bashio::config 'aws_secret_access_key')"
+AWS_ACCESS_KEY_ID="$(bashio::config 'aws_access_key')"
+export AWS_ACCESS_KEY_ID
+AWS_SECRET_ACCESS_KEY="$(bashio::config 'aws_secret_access_key')"
+export AWS_SECRET_ACCESS_KEY
 export AWS_REGION="$bucket_region"
 
 bashio::log.debug "Using AWS CLI version: '$(aws --version)'"
@@ -35,4 +37,4 @@ else
     bashio::log.info "Will not delete any local backups since 'delete_local_backups' is set to 'false'"
 fi
 
-bashio::log.info "Finished Amazon S3 Backup."
+bashio::log.info "Finished Amazon S3 Backup."