Allow file deletion

Fix ascii checker to ignore deleted or empty files.

scripts/check-non-ascii-characters.sh

@@ -3,7 +3,6 @@
 # SPDX-License-Identifier: GPL-3.0-only
 # First commited by Florian Uhlig
 
-
 if [[ $# -eq 1 ]]; then
   UPSTREAM=$1
 else
@@ -23,24 +22,26 @@ BASE_COMMIT=$UPSTREAM/master
 # check only source code files
 CHANGED_FILES=$(git diff --name-only $BASE_COMMIT | grep -E '.*\.(h|hpp|c|C|cpp|cxx|tpl)$' | grep -viE '.*LinkDef.h$')
 
+EXIT_CODE=0;
+
 for file in $CHANGED_FILES; do
-  # find all source code files which are non ASCII ones
-  result=$(file $file | grep -v ASCII)
-  if [[ "$result" != "" ]]; then
-    echo " "
-    echo "File $file contains non ASCII characters"
-    pcregrep --color='auto' -n "[\x80-\xFF]" $file
-    echo " "
-    okay=false
-  fi
-done
 
-if [[ "$okay" = "false" ]]; then
-  echo ""
-  echo "There are files which contain non ASCII characters"
-  echo "Test failed"
-  exit 1
-else
-  exit 0
-fi
+	file $file | grep -q \
+	-e 'ASCII text' \
+	-e 'empty$' \
+	-e '(No such file or directory)$';
+
+	if [ $? -ne 0 ]; then
+
+		echo "NON ASCII file detected: $file ";
+		if [ -x "$(command -v pcregrep)" ]; then
+			pcregrep --color='auto' -n "[\x80-\xFF]" $file;
+		else
+			grep --color='auto' -P -n "[\x80-\xFF]" $file;
+		fi
+
+	let EXIT_CODE++;
+	fi
+done
 
+exit ${EXIT_CODE}