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#!/bin/bash
# Copyright 2015 The Bazel Authors. All rights reserved.
#
# 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.
# Script for building bazel from scratch without bazel
PROTO_FILES=$(ls src/main/protobuf/*.proto)
LIBRARY_JARS=$(find third_party -name '*.jar' | tr "\n" " ")
DIRS=$(echo src/{java_tools/singlejar/java/com/google/devtools/build/zip,main/java,tools/xcode-common/java/com/google/devtools/build/xcode/{common,util}} ${OUTPUT_DIR}/src)
mkdir -p ${OUTPUT_DIR}/classes
mkdir -p ${OUTPUT_DIR}/src
# May be passed in from outside.
ZIPOPTS="$ZIPOPTS"
unset JAVA_TOOL_OPTIONS
unset _JAVA_OPTIONS
LDFLAGS=${LDFLAGS:-""}
MSYS_DLLS=""
PATHSEP=":"
case "${PLATFORM}" in
linux)
# JAVA_HOME must point to a Java installation.
JAVA_HOME="${JAVA_HOME:-$(readlink -f $(which javac) | sed 's_/bin/javac__')}"
if [ "${MACHINE_IS_64BIT}" = 'yes' ]; then
PROTOC=${PROTOC:-third_party/protobuf/protoc-linux-x86_64.exe}
else
if [ "${MACHINE_IS_ARM}" = 'yes' ]; then
PROTOC=${PROTOC:-third_party/protobuf/protoc-linux-arm32.exe}
else
PROTOC=${PROTOC:-third_party/protobuf/protoc-linux-x86_32.exe}
fi
fi
;;
freebsd)
# JAVA_HOME must point to a Java installation.
JAVA_HOME="${JAVA_HOME:-/usr/local/openjdk8}"
# Note: the linux protoc binary works on freebsd using linux emulation.
# We choose the 32-bit version for maximum compatiblity since 64-bit
# linux binaries are only supported in FreeBSD-11.
PROTOC=${PROTOC:-third_party/protobuf/protoc-linux-x86_32.exe}
;;
darwin)
if [[ -z "$JAVA_HOME" ]]; then
JAVA_HOME="$(/usr/libexec/java_home -v ${JAVA_VERSION}+ 2> /dev/null)" \
|| fail "Could not find JAVA_HOME, please ensure a JDK (version ${JAVA_VERSION}+) is installed."
fi
if [ "${MACHINE_IS_64BIT}" = 'yes' ]; then
PROTOC=${PROTOC:-third_party/protobuf/protoc-osx-x86_64.exe}
else
PROTOC=${PROTOC:-third_party/protobuf/protoc-osx-x86_32.exe}
fi
;;
msys*|mingw*)
# Use a simplified platform string.
PLATFORM="mingw"
PATHSEP=";"
# Find the latest available version of the SDK.
JAVA_HOME="${JAVA_HOME:-$(ls -d /c/Program\ Files/Java/jdk* | sort | tail -n 1)}"
# We do not use the JNI library on Windows.
if [ "${MACHINE_IS_64BIT}" = 'yes' ]; then
PROTOC=${PROTOC:-third_party/protobuf/protoc-windows-x86_64.exe}
else
PROTOC=${PROTOC:-third_party/protobuf/protoc-windows-x86_32.exe}
fi
esac
[[ -x "${PROTOC-}" ]] \
|| fail "Protobuf compiler not found in ${PROTOC-}"
# Check that javac -version returns a upper version than $JAVA_VERSION.
get_java_version
[ ${JAVA_VERSION#*.} -le ${JAVAC_VERSION#*.} ] || \
fail "JDK version (${JAVAC_VERSION}) is lower than ${JAVA_VERSION}, please set \$JAVA_HOME."
JAR="${JAVA_HOME}/bin/jar"
# Compiles java classes.
function java_compilation() {
local name=$1
local directories=$2
local library_jars=$3
local output=$4
local classpath=${library_jars// /$PATHSEP}:$5
local sourcepath=${directories// /$PATHSEP}
tempdir
local tmp="${NEW_TMPDIR}"
local paramfile="${tmp}/param"
touch $paramfile
mkdir -p "${output}/classes"
# Compile .java files (incl. generated ones) using javac
log "Compiling $name code..."
find ${directories} -name "*.java" > "$paramfile"
if [ ! -z "$BAZEL_DEBUG_JAVA_COMPILATION" ]; then
echo "directories=${directories}" >&2
echo "classpath=${classpath}" >&2
echo "sourcepath=${sourcepath}" >&2
echo "libraries=${library_jars}" >&2
echo "output=${output}/classes" >&2
echo "List of compiled files:" >&2
cat "$paramfile" >&2
fi
run_silent "${JAVAC}" -classpath "${classpath}" -sourcepath "${sourcepath}" \
-d "${output}/classes" -source "$JAVA_VERSION" -target "$JAVA_VERSION" \
-encoding UTF-8 "@${paramfile}"
log "Extracting helper classes for $name..."
for f in ${library_jars} ; do
run_silent unzip -qn ${f} -d "${output}/classes"
done
}
# Create the deploy JAR
function create_deploy_jar() {
local name=$1
local mainClass=$2
local output=$3
shift 3
local packages=""
for i in $output/classes/*; do
local package=$(basename $i)
if [[ "$package" != "META-INF" ]]; then
packages="$packages -C $output/classes $package"
fi
done
log "Creating $name.jar..."
echo "Main-Class: $mainClass" > $output/MANIFEST.MF
run_silent "$JAR" cmf $output/MANIFEST.MF $output/$name.jar $packages "$@"
}
if [ -z "${BAZEL_SKIP_JAVA_COMPILATION}" ]; then
log "Compiling Java stubs for protocol buffers..."
for f in $PROTO_FILES ; do
run_silent "${PROTOC}" -Isrc/main/protobuf/ --java_out=${OUTPUT_DIR}/src "$f"
done
java_compilation "Bazel Java" "$DIRS" "$LIBRARY_JARS" "${OUTPUT_DIR}"
# help files: all non java and BUILD files in src/main/java.
for i in $(find src/main/java -type f -a \! -name '*.java' -a \! -name 'BUILD' | sed 's|src/main/java/||'); do
mkdir -p $(dirname ${OUTPUT_DIR}/classes/$i)
cp src/main/java/$i ${OUTPUT_DIR}/classes/$i
done
# Overwrite tools.WORKSPACE, this is only for the bootstrap binary
echo "local_repository(name = 'bazel_tools', path = __workspace_dir__)" \
> ${OUTPUT_DIR}/classes/com/google/devtools/build/lib/bazel/rules/tools.WORKSPACE
create_deploy_jar "libblaze" "com.google.devtools.build.lib.bazel.BazelMain" \
${OUTPUT_DIR}
fi
log "Creating Bazel install base..."
ARCHIVE_DIR=${OUTPUT_DIR}/archive
mkdir -p ${ARCHIVE_DIR}/_embedded_binaries
# Dummy build-runfiles
cat <<'EOF' >${ARCHIVE_DIR}/_embedded_binaries/build-runfiles${EXE_EXT}
#!/bin/bash
mkdir -p $2/MANIFEST
cp $1 $2/MANIFEST
EOF
chmod 0755 ${ARCHIVE_DIR}/_embedded_binaries/build-runfiles${EXE_EXT}
log "Creating process-wrapper..."
cat <<'EOF' >${ARCHIVE_DIR}/_embedded_binaries/process-wrapper${EXE_EXT}
#!/bin/bash
# Dummy process wrapper, does not support timeout
shift 2
stdout="$1"
stderr="$2"
shift 2
"$@" 2>"$stderr" >"$stdout"
exit $?
EOF
chmod 0755 ${ARCHIVE_DIR}/_embedded_binaries/process-wrapper${EXE_EXT}
cp src/main/tools/build_interface_so ${ARCHIVE_DIR}/_embedded_binaries/build_interface_so
cp src/main/tools/jdk.BUILD ${ARCHIVE_DIR}/_embedded_binaries/jdk.BUILD
cp $OUTPUT_DIR/libblaze.jar ${ARCHIVE_DIR}
cp src/main/tools/xcode_locator_stub.sh ${ARCHIVE_DIR}/_embedded_binaries/xcode-locator
# bazel build using bootstrap version
function bootstrap_build() {
"${JAVA_HOME}/bin/java" \
-client -Xms256m -XX:NewRatio=4 -XX:+HeapDumpOnOutOfMemoryError -Xverify:none -Dfile.encoding=ISO-8859-1 \
-XX:HeapDumpPath=${OUTPUT_DIR} \
-Djava.util.logging.config.file=${OUTPUT_DIR}/javalog.properties \
-Dio.bazel.UnixFileSystem=0 \
-jar ${ARCHIVE_DIR}/libblaze.jar \
--batch \
--install_base=${ARCHIVE_DIR} \
--output_base=${OUTPUT_DIR}/out \
--install_md5= \
--workspace_directory=${PWD} \
--nodeep_execroot --nofatal_event_bus_exceptions \
build \
--ignore_unsupported_sandboxing \
--startup_time=329 --extract_data_time=523 \
--rc_source=/dev/null --isatty=1 --terminal_columns=97 \
--ignore_client_env \
--client_cwd=${PWD} \
"${@}"
}
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