# Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

# As of update 24, we preserve distfiles across chroot rebuilds via storing
# the content outside of the chroot, and binding it in.
#
# chromeos-chrome stores its build output in distdir however, which we
# don't currently want preserved across chroot builds, thus this script
# pulls the content out to the new location within the chroot.

upgrade_path() {
  local src="/var/cache/distfiles/target/$2"
  local dest="/var/cache/chromeos-chrome/$2"

  info "[$1/4] Checking $src vs $dest"
  if [ -d "$src" ]; then
    if [ -d "$dest" ]; then
      # User has already built it- thus wipe the src and use what's in
      # the chrome specific cache.
      info "[$1/4] Cleaning $src; this could take a while"
      sudo rm -rf "$src"
    else
      sudo mv "$src" "$dest"
    fi
  fi
}

sudo mkdir -p 0775 /var/cache/chromeos-chrome/
sudo chown "$USER:portage" /var/cache/chromeos-chrome/

upgrade_path 1 chrome-src
upgrade_path 2 chrome-src-internal
upgrade_path 3 chrome-src-custom
upgrade_path 4 chrome-src-custom-internal

exit 0