fixup! Introduce script testing

Author: JohT

scripts/detectChangedFiles.sh

@@ -65,6 +65,20 @@ while [[ $# -gt 0 ]]; do
   shift || true # ignore error when there are no more arguments
 done
 
+exit_failed() {
+  case "$0" in
+    */sh) return 1 ;; # Script is sourced
+    *) exit 1 ;;      # Script is executed directly
+  esac
+}
+
+exit_successful() {
+  case "$0" in
+    */sh) return 0 ;; # Script is sourced
+    *) exit 0 ;;      # Script is executed directly
+  esac
+}
+
 if ${readonlyMode}; then
   echo -e "${COLOR_INFO}detectChangedFiles: Readonly mode activated. Change detection file won't be created.${COLOR_DEFAULT}" >&2
 else
@@ -74,8 +88,8 @@ fi
 # Check if the paths parameter exist
 if [ -z "${paths}" ] ; then
     echo 0 # 0=No change detected. The path list is empty. There is nothing to compare. Therefore assume that there are no changes.
-    exit 0
-fi
+    exit_successful
+  fi
 
 # Check all paths if they are valid files or valid directories
 for path in ${paths//,/ }; do
@@ -87,7 +101,7 @@ for path in ${paths//,/ }; do
     fi
     # Neither a valid directory and file
     echo -e "${COLOR_ERROR}detectChangedFiles: Error: Invalid path: ${path}${COLOR_DEFAULT}" >&2
-    exit 1
+    exit_failed
 done
 
 # Function to get file size
@@ -102,6 +116,9 @@ get_file_size() {
 # Function to process a single path
 file_names_and_sizes() {
     if [ -d "$1" ]; then
+        # TODO Remove after debugging
+        echo "detectChangedFiles: Checking directory $1" >&2
+        
         # If it's a directory, list all files inside 
         # except for "node_modules", "target", "temp" and the change detection file itself
         find -L "$1" \
@@ -114,8 +131,14 @@ file_names_and_sizes() {
           -exec stat -f "%N %z" {} + \
         | sort 
     elif [ -f "$1" ]; then
-        # If it's a file, just echo the file path
-        stat -f "%N %z" < "$1"
+      # TODO Remove after debugging
+      echo "detectChangedFiles: Checking file $1" >&2
+      # If it's a file, just echo the file path
+      if [[ "$(uname)" == "Darwin" ]]; then
+        stat -f "%N %z" "$1" # macOS
+      else
+        stat --printf="%n %s\n" "$1" # Linux
+      fi
     fi
 }
 
@@ -157,7 +180,7 @@ if [ ! -f "${hashFilePath}" ] ; then
         echo -e "${COLOR_INFO}detectChangedFiles: Skipping file creation with content (=hash) ${CURRENT_FILES_HASH}${COLOR_DEFAULT}" >&2
     fi
     echo 1 # 1=Change detected and change detection file created
-    exit 0
+    exit_successful
 fi
 
 # Assume that there is no change if the saved hash is equal to the current one.