.gitlab-ci.yml

+stages:
+  - checkFormat
+
+FileFormatCheck:
+  stage: checkFormat
+  tags:
+    - CbmRoot
+  only:
+    refs:
+      - merge_requests
+    variables:
+      - $CI_MERGE_REQUEST_PROJECT_PATH == "cbmsoft/cbmroot_input" && $CI_MERGE_REQUEST_TARGET_BRANCH_NAME == "master"
+  script:
+    # Get the upstream repository manually. I did not find any other way to have it for
+    # comparison
+    - .scripts/connect_upstream_repo.sh $CI_MERGE_REQUEST_PROJECT_URL
+    - git fetch upstream
+    - .scripts/check-file-format.sh upstream
+
+
+
+
+#FileFormat:
+#  stage: checkFormat
+#  image: alpine
+#  tags:
+#    - docker

.scripts/check-file-format.sh

+#!/bin/bash
+
+if [[ $# -eq 1 ]]; then
+  UPSTREAM=$1
+else
+  if [ -z $UPSTREAM ]; then
+    UPSTREAM=$(git remote -v | grep git.cbm.gsi.de[:/]computing/cbmroot | 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 :" $UPSTREAM
+
+BASE_COMMIT=$UPSTREAM/master
+CHANGED_FILES=$(git diff --name-only $BASE_COMMIT)
+for file in $CHANGED_FILES; do
+  result=$(file $file | grep CRLF)
+  if [[ "$result" != "" ]]; then
+    echo ""
+    echo "File $file has wrong file format"
+    echo "$result"
+    echo ""
+    okay=false
+  fi
+done
+if [[ "$okay" = "false" ]]; then
+  echo ""
+  echo "Not all files have the correct file format"
+  echo "Test failed"
+  exit 1
+else
+  exit 0
+fi
+

.scripts/connect_upstream_repo.sh

+#!/bin/bash
+
+upstream_repo=$1
+
+bla=$(git remote -v | grep upstream)
+if [ $? -eq 0 ]; then
+  echo "Remote link upstream already exist"
+  bla=$(git remote -v | grep upstream | grep $upstream_repo)
+  if [ $? -eq 0 ]; then
+    echo "Remote link upstream already exist and points to the correct repo"
+    # dont do anything
+  else
+    echo "Remote link upstream already exist and points to the wrong repo"
+    git remote rm upstream
+    git remote add upstream $upstream_repo
+  fi
+else
+  echo "Remote repo has to be connected"
+  git remote add upstream $upstream_repo
+fi