Check if text files have correct file ending

ci_scripts/check-file-ending.sh

+#!/bin/bash
+# Copyright (C) 2021 GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
+# SPDX-License-Identifier: GPL-3.0-only
+# First commited by Florian Uhlig
+
+
+if [[ $# -eq 1 ]]; then
+  UPSTREAM=$1
+else
+  if [ -z $UPSTREAM ]; then
+    UPSTREAM=$(git remote -v | grep git.cbm.gsi.de[:/]CbmSoft/cbmroot_parameter | cut -f1 | uniq)
+    if [ -z $UPSTREAM ]; then
+      echo "Error: Name of upstream repository not provided and not found by automatic means"
+      echo 'Please provide if by checking your remotes with "git remote -v" and exporting UPSTREAM'
+      echo "or passing as an argument"
+      exit -1
+    fi
+  fi
+fi  
+echo "Upstream name is :" $UPSTREAM
+
+
+# If one wants to find all files in the CbmRoot and not only the changed ones
+# uncomment the follwing line and comment the next two
+#CHANGED_FILES=$(find . -type f -not \( -path "./.git/*" -o -path "./geometry/*" -o -path "./input/*" -o -path "./external/*" -o -path "./parameters/*" -prune \))
+
+BASE_COMMIT=$UPSTREAM/master
+CHANGED_FILES=$(git diff --name-only $BASE_COMMIT)
+
+echo ""
+for file in $CHANGED_FILES; do
+
+  # First check for text files and only do the further test on line endings
+  # for text files
+  result=$(file $file | grep -v text)
+  if [[ -z $result ]]; then
+    if [[ $(tail -c 1 $file) ]]; then
+      echo "File $file does not finish with end of line"
+      okay=false
+    fi
+  fi    
+done
+
+if [[ "$okay" = "false" ]]; then
+  echo ""
+  echo "Not all files have the correct file ending"
+  echo "Test failed"
+  echo ""
+  exit 1
+else
+  exit 0
+fi
+