#!/bin/bash

# Copyright (C) 2015 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#       http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

set -xue
BDK_USER_DATA=$PWD/../user_data
BDK=$PWD/bdk
DATA_DIR=$PWD/tests/data
TEST_TMP_DATA=$PWD/tests/tmp_user_data
HOST_TOOL_PATH=out/out-board/host/linux-$(uname -m | cut -f1 -d_)/bin
TOOL_PATH=out/out-board/target/product/board


# Changes to a temporary path that cleans itself up.
# Adds a config file opting out of .
setup_working_path() {
  local tmp=`mktemp -d`
  trap "rm -rf $tmp" exit
  cd $tmp

  # Set config values, setting aside old values.
  # Note: this DB uses relative paths to PWD. In a real user's config,
  # all paths will be absolute.
  mv ${BDK_USER_DATA}/config.db ${BDK_USER_DATA}/config_old.db
  cp ${DATA_DIR}/config.db ${BDK_USER_DATA}/config.db

  # Update our trap.
  trap "rm -rf $tmp && \
mv ${BDK_USER_DATA}/config_old.db ${BDK_USER_DATA}/config.db" exit

  # Set some values. Note: these should be kept in sync with the DB.
  TEST_TREE=${tmp}/OS
  TEST_BSPs=${tmp}/BSPs
  TEST_PLATFORM_CACHE=${tmp}/platform_cache

  # Initialize the test_tree.
  cp -r ${DATA_DIR}/test_tree ${TEST_TREE}
}

# Places make in stubs/ and updates PATH.
# Call this from within the product directory.
stub_make() {
  echo "Replacing make with a stub"
  mkdir -p stubs
  cat <<-EOF >stubs/make
	#!/bin/sh
	echo "\$0"
	while test -n "\$*"; do
		echo "\$1"
		shift
	done
	EOF
  chmod +x stubs/make
  export PATH=${PWD}/stubs:${PATH}
}


# Places git in stubs/ and updates PATH.
stub_git() {
  echo "Replacing git with a stub"
  mkdir -p stubs
  cat <<-EOF >stubs/git
	#!/bin/sh
        if [ "\$2" = "rev-parse" ]; then
          echo "deadbeef"
        else
          cp -RT "${DATA_DIR}/package_tree" "\${*: -1}"
          mkdir "\${*: -1}/.git"
        fi
	EOF
  chmod +x stubs/git
  export PATH=${PWD}/stubs:${PATH}
}


# Places tar in stubs/ and updates PATH
stub_tar() {
  echo "Replacing tar with a stub"
  mkdir -p stubs
  cat <<-EOF >stubs/tar
	#!/bin/sh
        cp -RT "${DATA_DIR}/package_tree" "\$2"
	EOF
  chmod +x stubs/tar
  export PATH=$PWD/stubs:$PATH
}

# Places curl in stubs/ and updates PATH.
stub_curl() {
  echo "Replacing curl with a stub"
  mkdir -p stubs
  cat <<-EOF >stubs/curl
	#!/bin/sh
        cp -RT "${DATA_DIR}/package_tree/tarball.tar.gz" "\$2"
	EOF
  chmod +x stubs/curl
  export PATH=${PWD}/stubs:${PATH}
}

# Nops git stub.
stub_dead_git() {
  echo "Overwriting git with nop stub"
  cat <<-EOF >stubs/git
	#!/bin/sh
	EOF
  chmod +x stubs/git
  export PATH=${PWD}/stubs:${PATH}
}

# Nops curl stub.
stub_dead_curl() {
  echo "Overwriting curl with nop stub"
  cat <<-EOF >stubs/curl
	#!/bin/sh
	EOF
  chmod +x stubs/curl
  export PATH=${PWD}/stubs:${PATH}
}

# Run after stub_make from the same working directory.
# Places per-product tools in the right out/ paths.
# Call this from within the product directory.
stub_tools() {
  mkdir -p $HOST_TOOL_PATH
  cp stubs/make $HOST_TOOL_PATH/fastboot
  cp stubs/make $HOST_TOOL_PATH/adb
  mkdir -p $TOOL_PATH
  cp stubs/make $TOOL_PATH/provision-device
}