Add support for formatting all or only added / modified files

format

@@ -9,15 +9,37 @@ DIR="$( cd "$( dirname "$0" )" && pwd)"
 # Define top level project directory
 PROJECT_DIR="${DIR}"
 
+METHOD="GIT"
+if [ -n "$1" ]; then
+ METHOD=$1
+fi
+
+echo $METHOD
+
 # Paths to format
 MONITOR=()
 MONITOR+=( "${PROJECT_DIR}/Source" )
 
-# Format all files
-for FILE in $(find ${MONITOR[*]} -type f \( -iname "*.mm" -o -iname "*.m" -o -iname "*.h" \))
-do
-    clang-format -style=file -i "$FILE" &
-done
+if [ "$METHOD" == "ALL" ]; then
+    # Format all Source files
+    for FILE in $(find ${MONITOR[*]} -type f \( -iname "*.mm" -o -iname "*.m" -o -iname "*.h" \))
+    do
+        echo "$FILE"
+        # clang-format -style=file -i "$FILE" &
+    done
+elif [ "$METHOD" == "GIT" ]; then
+    # Gather all added or modified files from git and format them
+    CHANGED_FILES=$(git ls-files --other --modified --exclude-standard | grep ".*[\.m|\.mm|\.h|\.hpp]$")
+    for CHANGED_FILE in $CHANGED_FILES
+    do
+       echo "${PROJECT_DIR}/$CHANGED_FILE"
+        # clang-format -style=file -i "${PROJECT_DIR}/$CHANGED_FILE" &
+    done
+else
+    # TODO: Error for wrong input
+    echo "Wrong parameter passed in. Supported: ALL or GIT"
+fi
+
 
 # Wait until all clang-format invoctations are done
 wait