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# Copyright (C) 2022 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.
function gettop
{
local TOPFILE=build/make/core/envsetup.mk
# The ${TOP-} expansion allows this to work even with set -u
if [ -n "${TOP:-}" -a -f "${TOP:-}/$TOPFILE" ] ; then
# The following circumlocution ensures we remove symlinks from TOP.
(cd "$TOP"; PWD= /bin/pwd)
else
if [ -f $TOPFILE ] ; then
# The following circumlocution (repeated below as well) ensures
# that we record the true directory name and not one that is
# faked up with symlink names.
PWD= /bin/pwd
else
local HERE=$PWD
local T=
while [ \( ! \( -f $TOPFILE \) \) -a \( "$PWD" != "/" \) ]; do
\cd ..
T=`PWD= /bin/pwd -P`
done
\cd "$HERE"
if [ -f "$T/$TOPFILE" ]; then
echo "$T"
fi
fi
fi
}
# Sets TOP, or if the root of the tree can't be found, prints a message and
# exits. Since this function exits, it should not be called from functions
# defined in envsetup.sh.
if [ -z "${IMPORTING_ENVSETUP:-}" ] ; then
function require_top
{
TOP=$(gettop)
if [[ ! $TOP ]] ; then
echo "Can not locate root of source tree. $(basename $0) must be run from within the Android source tree." >&2
exit 1
fi
}
fi
function getoutdir
{
local top=$(gettop)
local out_dir="${OUT_DIR:-}"
if [[ -z "${out_dir}" ]]; then
if [[ -n "${OUT_DIR_COMMON_BASE:-}" && -n "${top}" ]]; then
out_dir="${OUT_DIR_COMMON_BASE}/$(basename ${top})"
else
out_dir="out"
fi
fi
if [[ "${out_dir}" != /* ]]; then
out_dir="${top}/${out_dir}"
fi
echo "${out_dir}"
}
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