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|
#!/bin/bash
set -eo pipefail
# TODO: Refactor build/make/envsetup.sh to make gettop() available elsewhere
function gettop
{
local TOPFILE=build/bazel/bazel.sh
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
}
# TODO: Refactor build/soong/scripts/microfactory.bash to make getoutdir() available elsewhere
function getoutdir
{
local out_dir="${OUT_DIR-}"
if [ -z "${out_dir}" ]; then
if [ "${OUT_DIR_COMMON_BASE-}" ]; then
out_dir="${OUT_DIR_COMMON_BASE}/$(basename ${TOP})"
else
out_dir="out"
fi
fi
if [[ "${out_dir}" != /* ]]; then
out_dir="${TOP}/${out_dir}"
fi
echo "${out_dir}"
}
TOP="$(gettop)"
if [ ! "$TOP" ]; then
>&2 echo "Couldn't locate the top of the tree. Try setting TOP."
exit 1
fi
case $(uname -s) in
Darwin)
ANDROID_BAZEL_PATH="${TOP}/prebuilts/bazel/darwin-x86_64/bazel"
ANDROID_BAZELRC_NAME="darwin.bazelrc"
ANDROID_BAZEL_JDK_PATH="${TOP}/prebuilts/jdk/jdk11/darwin-x86"
# Lock down PATH in action execution environment, thereby removing
# Bazel's default /bin, /usr/bin, /usr/local/bin and ensuring
# hermeticity from the system.
#
# The new PATH components are:
#
# - prebuilts/build-tools/path: contains checked-in tools that can be
# used as executables in actions.
#
# - out/.path: a special directory created by path_interposer with
# config from ui/build/paths/config.go for allowlisting specific
# binaries not in prebuilts/build-tools/path, but on the host system.
# If one runs Bazel without soong_ui, then this directory wouldn't
# exist, making standalone Bazel execution's PATH variable stricter than
# Bazel execution within soong_ui.
RESTRICTED_PATH="${TOP}/prebuilts/build-tools/path/darwin-x86:${TOP}/out/.path"
;;
Linux)
ANDROID_BAZEL_PATH="${TOP}/prebuilts/bazel/linux-x86_64/bazel"
ANDROID_BAZELRC_NAME="linux.bazelrc"
ANDROID_BAZEL_JDK_PATH="${TOP}/prebuilts/jdk/jdk11/linux-x86"
RESTRICTED_PATH="${TOP}/prebuilts/build-tools/path/linux-x86:${TOP}/out/.path"
;;
*)
>&2 echo "Bazel is supported on Linux and Darwin only. Your OS is not supported for Bazel usage, based on 'uname -s': $(uname -s)"
exit 1
;;
esac
function verify_soong_outputs_exist() {
local to_check="${ABSOLUTE_OUT_DIR}/.path"
local no_soong=0
if [[ ! -d "${to_check}" ]]; then
no_soong=1
fi
local bazel_configs=(
"bp2build"
"queryview"
)
local valid_bazel_config=0
for c in "${bazel_configs[@]}"
do
if [[ -d "${ABSOLUTE_OUT_DIR}/soong/""${c}" ]]; then
valid_bazel_config=1
fi
done
if [[ "${no_soong}" -eq "1" || "${valid_bazel_config}" -eq "0" ]]; then
>&2 echo "Error: missing generated Bazel files. Have you run bp2build or queryview?"
>&2 echo "Run bp2build with the command: m bp2build"
>&2 echo "Run queryview with the command: m queryview"
>&2 echo "Alternatively, for non-queryview applications, invoke Bazel using 'b' with the command: source envsetup.sh; b query/build/test <targets>"
exit 1
fi
}
function create_bazelrc() {
cat > "${ABSOLUTE_OUT_DIR}/bazel/path.bazelrc" <<EOF
# This file is generated by tools/bazel. Do not edit manually.
build --action_env=PATH=${RESTRICTED_PATH}
EOF
}
case "x${ANDROID_BAZELRC_PATH}" in
x)
# Path not provided, use default.
ANDROID_BAZELRC_PATH="${TOP}/build/bazel"
;;
x/*)
# Absolute path, take it as-is.
ANDROID_BAZELRC_PATH="${ANDROID_BAZELRC_PATH}"
;;
x*)
# Relative path, consider it relative to TOP.
ANDROID_BAZELRC_PATH="${TOP}/${ANDROID_BAZELRC_PATH}"
;;
esac
if [ -d "${ANDROID_BAZELRC_PATH}" ]; then
# If we're given a directory, find the correct bazelrc file there.
ANDROID_BAZELRC_PATH="${ANDROID_BAZELRC_PATH}/${ANDROID_BAZELRC_NAME}"
fi
if [ -n "$ANDROID_BAZEL_PATH" -a -f "$ANDROID_BAZEL_PATH" ]; then
export ANDROID_BAZEL_PATH
else
>&2 echo "Couldn't locate Bazel binary"
exit 1
fi
if [ -n "$ANDROID_BAZELRC_PATH" -a -f "$ANDROID_BAZELRC_PATH" ]; then
export ANDROID_BAZELRC_PATH
else
>&2 echo "Couldn't locate bazelrc file for Bazel"
exit 1
fi
if [ -n "$ANDROID_BAZEL_JDK_PATH" -a -d "$ANDROID_BAZEL_JDK_PATH" ]; then
export ANDROID_BAZEL_JDK_PATH
else
>&2 echo "Couldn't locate JDK to use for Bazel"
exit 1
fi
ABSOLUTE_OUT_DIR="$(getoutdir)"
# In order to be able to load JNI libraries, this directory needs to exist
mkdir -p "${ABSOLUTE_OUT_DIR}/bazel/javatmp"
ADDITIONAL_FLAGS=()
if [[ "${STANDALONE_BAZEL}" =~ ^(true|TRUE|1)$ ]]; then
# STANDALONE_BAZEL is set.
>&2 echo "WARNING: Using Bazel in standalone mode. This mode is not integrated with Soong and Make, and is not supported"
>&2 echo "for Android Platform builds. Use this mode at your own risk."
>&2 echo
else
# STANDALONE_BAZEL is not set.
>&2 echo "WARNING: Bazel support for the Android Platform is experimental and is undergoing development."
>&2 echo "WARNING: Currently, build stability is not guaranteed. Thank you."
>&2 echo
# Generate a bazelrc with dynamic content, like the absolute path to PATH variable values.
create_bazelrc
# Check that the Bazel synthetic workspace and other required inputs exist before handing over control to Bazel.
verify_soong_outputs_exist
ADDITIONAL_FLAGS+=("--bazelrc=${ABSOLUTE_OUT_DIR}/bazel/path.bazelrc")
fi
JAVA_HOME="${ANDROID_BAZEL_JDK_PATH}" "${ANDROID_BAZEL_PATH}" \
--server_javabase="${ANDROID_BAZEL_JDK_PATH}" \
--output_user_root="${ABSOLUTE_OUT_DIR}/bazel/output_user_root" \
--host_jvm_args=-Djava.io.tmpdir="${ABSOLUTE_OUT_DIR}/bazel/javatmp" \
--bazelrc="${ANDROID_BAZELRC_PATH}" \
"${ADDITIONAL_FLAGS[@]}" \
"$@"
|
