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#!/bin/bash
# Copyright 2019 The Kythe 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.
# Usage:
# extract.sh \
# --define kythe_corpus=github.com/project/repo \
# //...
#
# Input `kythe_corpus` should be the repository you're extracting (for example
# github.com/protocolbuffers/protobuf), as well as the build target to extract.
# A good default is //..., which extracts almost everything.
#
# Note that this doesn't some targets - for example build targets with
# `tags = ["manual"]` will not be extracted. If you have additional targets to
# extract those can be appended cleanly:
#
# extract.sh --define... //... //some/manual:target
#
# If you have restrictions on what can or should be extracted, for example an
# entire directory to ignore, you must specify your partitions individually. A
# good tool for doing this (instead of manually discovering everything) is bazel
# query, described at
# https://docs.bazel.build/versions/master/query-how-to.html.
#
# Outputs $KYTHE_OUTPUT_DIRECTORY/compilations.kzip
#
# Requires having environment variable $KYTHE_OUTPUT_DIRECTORY set, as well
# as kzip tool (kythe/go/platform/tools/kzip) installed to /kythe/kzip and
# kythe/release/base/fix_permissions.sh copied to /kythe/fix_permissions.sh.
# Also assumes you have extractors installed as per
# kythe/extractors/bazel/extractors.bazelrc.
: ${KYTHE_OUTPUT_DIRECTORY:?Missing output directory}
if [ -n "$KYTHE_SYSTEM_DEPS" ]; then
echo "Installing $KYTHE_SYSTEM_DEPS"
# TODO(jaysachs): unclear if we should bail if any packages fail to install
apt-get update && \
apt-get upgrade -y && \
apt-get install -y $KYTHE_SYSTEM_DEPS && \
apt-get clean
fi
/kythe/bazelisk --bazelrc=/kythe/bazelrc "$@"
# Collect any extracted compilations.
mkdir -p "$KYTHE_OUTPUT_DIRECTORY"
find bazel-out/*/extra_actions/external/kythe_release -name '*.kzip' | \
xargs -r /kythe/tools/kzip merge --append --output "$KYTHE_OUTPUT_DIRECTORY/compilations.kzip"
/kythe/fix_permissions.sh "$KYTHE_OUTPUT_DIRECTORY"
test -f "$KYTHE_OUTPUT_DIRECTORY/compilations.kzip"
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