Autoformat script that formats recursively

autoformat.sh

@@ -1,2 +1,42 @@
 #!/bin/bash
-clang-format -i {daemon,cli,gui}/src/*.cpp {daemon,cli,gui}/include/*.h {daemon,cli,gui}/test/*.cpp
+folderArray=( "daemon" "cli" "gui" )
+
+# Variable that will hold the name of the clang-format command
+FMT=""
+
+# Some distros just call it clang-format. Others (e.g. Ubuntu) are insistent
+# that the version number be part of the command. We prefer clang-format if
+# that's present, otherwise we work backwards from highest version to lowest
+# version.
+for clangfmt in clang-format{,-{4,3}.{9,8,7,6,5,4,3,2,1,0}}; do
+    if which "$clangfmt" &>/dev/null; then
+        FMT="$clangfmt"
+        break
+    fi
+done
+
+# Check if we found a working clang-format
+if [ -z "$FMT" ]; then
+    echo "failed to find clang-format"
+    exit 1
+fi
+
+function format() {
+    for f in $(find $@ -type d -path "$@/build" -prune -o -type f -name '*.h' -or -name '*.m' -or -name '*.mm' -or -name '*.c' -or -name '*.cpp'); do
+        if [ ! -d "${f}" ]; then
+            echo "format ${f}";
+            ${FMT} -i ${f};
+        fi
+    done
+
+    echo "~~~ $@ Done ~~~";
+}
+
+# Check all of the arguments first to make sure they're all directories
+for dir in ${folderArray[@]}; do
+    if [ ! -d "${dir}" ]; then
+        echo "${dir} is not a directory";
+    else
+        format ${dir};
+    fi
+done