Add updatescript

THW

@@ -1 +1 @@
-Subproject commit 93c8442f86eff27e1fede19cb32425191856a161
+Subproject commit f8dcefa2c4c71b4f7c3d172dab5c40f96d7612e1

update.sh

@@ -0,0 +1,39 @@
+#!/bin/bash
+
+function look_for_update() {
+  if [[ $1 == ./.git ]] || [[ $1 == "." ]]; then
+    echo "Ignore $1"
+    return
+  fi
+  WithoutPrefix=$(echo -n $1 | cut -c 2-)
+  if grep -qx "$WithoutPrefix" .gitignore; then
+    echo "Ignore $1, because it's in .gitignore"
+    return
+  fi
+  printf -v FolderNameEscaped '%q' "$1"
+  if [[ -f $1/update.sh ]]; then
+    echo "Switch to subdir $1 and run update.sh"
+    cd "$1"
+    git pull
+    bash -c "./update.sh nobreak"
+  else
+    if [[ -f $1/.git ]]
+    then
+      echo "Pull $1"
+      cd "$1"
+      git pull
+    else
+      echo "Checkout master for $1"
+      git submodule update --init -- "$1"
+      cd "$1"
+      git checkout master
+    fi
+	fi
+}
+
+export -f look_for_update
+find . -maxdepth 1 -type d -exec bash -c 'look_for_update "$0"' {} \;
+
+if [ -z $1 ]; then
+  read -p "Press return"
+fi