split the own branch by default.

.github/workflows/split.yml

@@ -18,6 +18,8 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
       - name: Setup Private Key
         run: |
           mkdir -p ~/.ssh

bin/split-linux.sh

@@ -3,7 +3,7 @@
 set -e
 set -x
 
-CURRENT_BRANCH="master"
+CURRENT_BRANCH=$(git rev-parse --abbrev-ref HEAD)
 BASEPATH=$(cd `dirname $0`; cd ../src/; pwd)
 REPOS=$@