platform_build/cogsetup.sh
Kousik Kumar ec5416c9ad Add cog setup scripts
This script has the following functionality:
1. Sets up the `out` symlink to point to a default location on disk
2. Copies RBE binaries outside Cog (temporary fix for build stall problem) - b/289391270
3. Exports ANDROID_BUILD_ENVIRONMENT_CONFIG variable to point to googler-cog.json file. This file will be available in aosp-main-with-phones and goog/main and downstream branches.

TESTED=ran the script within and outside the Cog workspace to test it.

Bug: b/295053716
Change-Id: I59cd6d2d5f954be6f7e4ecd7d64de1e63e51b72e
2023-09-14 17:11:45 +00:00

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#
# Copyright (C) 2023 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.
#
# This file is executed by build/envsetup.sh, and can use anything
# defined in envsetup.sh.
function _create_out_symlink_for_cog() {
if [[ "${OUT_DIR}" == "" ]]; then
OUT_DIR="out"
fi
if [[ -L "${OUT_DIR}" ]]; then
return
fi
if [ -d "${OUT_DIR}" ]; then
echo -e "\tOutput directory ${OUT_DIR} cannot be present in a Cog workspace."
echo -e "\tDelete \"${OUT_DIR}\" or create a symlink from \"${OUT_DIR}\" to a directory outside your workspace."
return 1
fi
DEFAULT_OUTPUT_DIR="${HOME}/.cog/android-build-out"
mkdir -p ${DEFAULT_OUTPUT_DIR}
ln -s ${DEFAULT_OUTPUT_DIR} `pwd`/out
}
# This function moves the reclient binaries into a directory that exists in a
# non-cog part of the overall filesystem. This is to workaround the problem
# described in b/289391270.
function _copy_reclient_binaries_from_cog() {
local NONCOG_RECLIENT_BIN_DIR="${HOME}/.cog/reclient/bin"
if [ ! -d "$NONCOG_RECLIENT_BIN_DIR" ]; then
# Create the non cog directory if it doesn't exist.
mkdir -p ${NONCOG_RECLIENT_BIN_DIR}
else
# Clear out the non cog directory if it does exist.
rm -f ${NONCOG_RECLIENT_BIN_DIR}/*
fi
local TOP=$(gettop)
# Copy the binaries out of live.
cp $TOP/prebuilts/remoteexecution-client/live/* $NONCOG_RECLIENT_BIN_DIR
# Finally set the RBE_DIR env var to point to the out-of-cog directory.
export RBE_DIR=$NONCOG_RECLIENT_BIN_DIR
}
# This function sets up the build environment to be appropriate for Cog.
function _setup_cog_env() {
_create_out_symlink_for_cog
if [ "$?" -eq "1" ]; then
echo -e "\e[0;33mWARNING:\e[00m Cog environment setup failed!"
return 1
fi
_copy_reclient_binaries_from_cog
export ANDROID_BUILD_ENVIRONMENT_CONFIG="googler-cog"
# Running repo command within Cog workspaces is not supported, so override
# it with this function. If the user is running repo within a Cog workspace,
# we'll fail with an error, otherwise, we run the original repo command with
# the given args.
ORIG_REPO_PATH=`which repo`
function repo {
if [[ "${PWD}" == /google/cog/* ]]; then
echo "\e[01;31mERROR:\e[0mrepo command is disallowed within Cog workspaces."
return 1
fi
${ORIG_REPO_PATH} "$@"
}
}
if [[ "${PWD}" != /google/cog/* ]]; then
echo -e "\e[01;31mERROR:\e[0m This script must be run from a Cog workspace."
fi
_setup_cog_env