checking for zip program

.github/workflows/debug.yml

@@ -28,6 +28,9 @@ jobs:
 
       - name: "install ghostscript"
         run: sudo apt-get install -y ghostscript
+        
+      - name: "install zip"
+        run: sudo apt-get install -y zip
       
       ###### multiple options for a TeX environment
       #   ##

.github/workflows/release.yaml

@@ -18,6 +18,9 @@ jobs:
         # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
         uses: actions/checkout@v2
 
+      - name: "install zip"
+        run: sudo apt-get install -y zip
+
         ## create varibale ${{ steps.tag.outputs.tag }}
       - name: "get tag"
         id: tag

create-release.sh

@@ -82,11 +82,28 @@ check_versionhistory() {
   exit 1
 }
 
+# check for zip
+check_zip() {
+  status=0
+  command -v zip >/dev/null 2>&1 || status=1
+  if [ $status = 0 ]; then
+    if [ $verbose = 1 ]; then
+      echo "zip found"
+    fi
+    return 0
+  fi
+  
+  echo "Program 'zip' not found."
+  echo "Be sure to have zip installed!"
+  exit 1
+}
+
 ## -- creating the release
 
 ## check if $VERSION is present in README.md and versionhistory.tex
 check_readme
 check_versionhistory
+check_zip
 
 ## extract DATE from versionhistory.tex
 LINE=$(grep "vhEntry{$VERSION_NUM" doc/versionhistory.tex)