Prepare build-ls-bus pipeline for release creation

Author: Benedikt Menne

.github/workflows/build-ls-bus.yml

@@ -3,6 +3,8 @@ name: Build Layered Standard Network Communication
 on:
   push:
     branches-ignore: [ 'temp/*' ]
+    tags:
+      - '*'
   pull_request:
     branches: [ main ]
 
@@ -15,12 +17,20 @@ jobs:
     steps:
     - name: checkout
       uses: actions/checkout@v3
+    - name: Generate revnumber
+      run: |
+        [[ $GITHUB_REF_TYPE == "tag" ]] && REVNUMBER=${GITHUB_REF:11} || REVNUMBER=${GITHUB_SHA:0:7}
+        echo GITHUB_SHA:      $GITHUB_SHA
+        echo GITHUB_REF_TYPE: $GITHUB_REF_TYPE
+        echo GITHUB_REF:      $GITHUB_REF
+        echo REVNUMBER:       $REVNUMBER
+        echo "REVNUMBER=$REVNUMBER" >> $GITHUB_ENV
     - name: prepare
       run: mkdir build
     - name: build layered standard Network Communication 
       uses: avattathil/asciidoctor-action@master
       with:
-        program: "asciidoctor -D build --backend=html5 --attribute=revnumber=${GITHUB_REF#refs/heads/}-$GITHUB_SHA --attribute=revdate=$(date +%F) docs/index.adoc"
+        program: "asciidoctor -D build --backend=html5 --attribute=revnumber=${{ env.REVNUMBER }} --attribute=revdate=$(date +%F) docs/index.adoc"
     - name: copy images and examples
       run: tar cfC - docs images examples | tar xfC - build
     - name: archive layered standard Network Communication