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#!/bin/bash
# Copyright 2015 Google Inc. 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.
#
# Generates an eclipse .classpath file for Bazel
set -eu
cd $(dirname "$0")
cd ..
function query() {
./output/bazel query "$@"
}
# Compile bazel
([ -f "output/bazel" ] && [ -f "tools/jdk/JavaBuilder_deploy.jar" ] && [ -f "tools/jdk/ijar" ] \
&& [ -f "tools/jdk/SingleJar_deploy.jar" ] && [ -e "tools/jdk/jdk" ]) || ./compile.sh >&2 || exit $?
# Build everything
./output/bazel build //src/... //third_party/... >&2 || exit $?
cat <<EOF
<?xml version="1.0" encoding="UTF-8"?>
<classpath>
EOF
# Find Java paths
for path in $(find src -name "*.java" | sed "s|/com/google/.*$||" | sort -u); do
echo " <classpathentry kind=\"src\" path=\"$path\"/>"
done
# Find third party paths
for path in $(find third_party -name "*.jar" | sort -u); do
echo " <classpathentry kind=\"lib\" path=\"$path\"/>"
done
# Find protobuf generation
for path in $(find bazel-bin/ -name "*.java" | grep proto | sed "s|/com/google/.*$||" | sort -u | sed 's|//|/|'); do
echo " <classpathentry kind=\"lib\" path=\"$(dirname $path)/$(basename $path .proto_output)\" sourcepath=\"$path\"/>"
done
# Find other generation
PACKAGE_LIST=$(find src -name "BUILD" | sed "s|/BUILD||" | sed "s|^|//|")
# Returns the package of file $1
function get_package_of() {
# look for the longest matching package
for i in ${PACKAGE_LIST}; do
if [[ "$1" =~ ^$i ]]; then # we got a match
echo $(echo -n $i | wc -c | xargs echo) $i
fi
done | sort -r -n | head -1 | cut -d " " -f 2
}
# returns the target corresponding to file $1
function get_target_of() {
local package=$(get_package_of $1)
local file=$(echo $1 | sed "s|^${package}/||g")
echo "${package}:${file}"
}
# Returns the target that consume file $1
function get_consuming_target() {
# Here to the god of bazel, I should probably offer one or two memory chips for that
local target=$(get_target_of $1)
local generating_target=$(query "deps(${target}, 1) - ${target}")
local java_library=$(query "rdeps(//src/..., ${generating_target}, 1) - ${generating_target}")
echo "${java_library}"
}
# Returns the library that contains the generated file $1
function get_containing_library() {
get_consuming_target $1 | sed 's|:|/lib|' | sed 's|^//|bazel-bin/|' | sed 's|$|.jar|'
}
for path in $(find bazel-genfiles/ -name "*.java" | sed 's|/\{0,1\}bazel-genfiles/\{0,1\}|//|'); do
source_path=$(echo $path | sed 's|//|bazel-genfiles/|' | sed 's|/com/.*$||')
echo " <classpathentry kind=\"lib\" path=\"$(get_containing_library ${path})\" sourcepath=\"${source_path}\"/>"
done | sort -u
# Write the end of the .classpath file
cat <<'EOF'
<classpathentry kind="lib" path="tools/jdk/jdk/lib/tools.jar"/>
<classpathentry kind="output" path="bazel-out/eclipse-classes"/>
<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
</classpath>
EOF
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