multidisabler: add vendor free size check

META-INF/com/google/android/update-binary

@@ -87,6 +87,35 @@ rm_from_manifest() {
   done
 }
 
+resize_vendor() {
+  local dm_block=$(df -k | cat | grep "/vendor" | cut -d' ' -f1)
+
+  ui_print " - Unmounting /vendor..."
+  umount /vendor
+  ui_print " - Checking vendor block partition before resizing..."
+  e2fsck -f $dm_block
+  ui_print " - Resizing the filesystem on $dm_block..."
+  resize2fs $dm_block
+  ui_print " - Make the partition R/W by unsharing its blocks..."
+  e2fsck -E unshare_blocks $dm_block
+  ui_print " - Remounting /vendor..."
+  mount /vendor
+  mount -o remount,rw /vendor
+}
+
+vendor_free_size_check() {
+  ui_print " - Checking vendor free size..."
+  if dd if=/dev/zero of=/vendor/test bs=1 count=1 2>/dev/null; then
+    ui_print " -     ...succeeded."
+    rm -f /vendor/test
+  else
+    ui_print " -     ...No free space left on vendor, attempting to resize vendor..."
+    ui_print " "
+    rm -f /vendor/test
+    resize_vendor
+  fi
+}
+
 disable_fbe() {
   local md5
   local i
@@ -333,6 +362,7 @@ if ! mount | grep /vendor >/dev/null; then
   exit 3
 fi
 
+vendor_free_size_check
 disable_fbe
 disable_recovery_restoration