hooks/post-checkout

#!/bin/bash
#
# Copyright 2022 The Fuchsia Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

source "$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)"/helpers.sh || exit $?

# Check if sdk-integration has changed.
# If it has, the SDK version has changed for the
# repo, and the dev will likely want to shut down
# things that were run using the old SDK to avoid
# incompatibility issues between old things and the new SDK.
sdk_folder="third_party/sdk-integration"
if [[ $(git diff HEAD@{1}..HEAD@{0} -- "${sdk_folder}" | wc -l) -gt 0 ]]
then
  echo
  echo-warning "\e[33;1m${sdk_folder}\e[0m has changed."
  echo-warning "This can lead to incompatiblities with emulators started using the old SDK."
  echo-warning "We recommend running the following command to clean up resources from the old SDK:"
  echo '$FUCHSIA_EMBEDDER_DIR/scripts/update_fuchsia_sdk.sh --no-version-bump --cleanup'
fi

# Check if git hooks have changed.
# Prompt the dev to install the new hooks if they have.
hooks_folder="hooks"
if [[ $(git diff HEAD@{1}..HEAD@{0} -- hooks | wc -l) -gt 0 ]]
then
  echo
  echo-info "\e[33;1mhooks/\e[0m has changed. To install the new Git hooks, run:"
  echo '$FUCHSIA_EMBEDDER_DIR/scripts/install_hooks.sh'
fi

# Check if the bootstrap script has changed.
# Prompt the dev to re-run the bootstrap script in case there's
# new additional setup steps they're missing.
bootstrap_script="scripts/bootstrap.sh"
if [[ $(git diff HEAD@{1}..HEAD@{0} -- "${bootstrap_script}" | wc -l) -gt 0 ]]
then
  echo
  echo-info "\e[33;1m${bootstrap_script}\e[0m has changed."
  echo-info "To ensure that your repository is set up correctly, you may want to re-run:"
  echo '$FUCHSIA_EMBEDDER_DIR/scripts/bootstrap.sh'
fi

# Check if the engine_revision has changed.
# If the dev has fetched the Flutter Engine at third_party/engine/src,
# warn them that their engine is now out-of-date and needs to
# be rebased.
engine_revision="src/embedder/engine/engine_revision"
if [[ $(git diff HEAD@{1}..HEAD@{0} -- "${engine_revision}" | wc -l) -gt 0 && -d "${embedder_engine_dir}" ]]
then
  echo
  echo-warning "\e[33;1m${engine_revision}\e[0m has changed."
  echo-warning "Your repo's checkout of Flutter Engine at ${embedder_engine_dir} is now out-of-date."
  echo-warning "To keep your --with-engine builds working, you should sync the Flutter Engine by running:"
  echo '$FUCHSIA_EMBEDDER_DIR/scripts/sync_engine_to_revision.sh $(cat $FUCHSIA_EMBEDDER_DIR/third_party/dart-pkg/internal/flutter/flutter/bin/internal/engine.version)'
fi