xref: /aosp_15_r20/external/bazelbuild-kotlin-rules/tools/coverage/bazel_jar_instrumenter.sh (revision 3a22c0a33dd99bcca39a024d43e6fbcc55c2806e)
1#!/bin/bash
2# Copyright 2022 Google LLC. All rights reserved.
3#
4# Licensed under the Apache License, Version 2.0 (the License);
5# you may not use this file except in compliance with the License.
6# You may obtain a copy of the License at
7#
8#     http://www.apache.org/licenses/LICENSE-2.0
9#
10# Unless required by applicable law or agreed to in writing, software
11# distributed under the License is distributed on an "AS IS" BASIS,
12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13# See the License for the specific language governing permissions and
14# limitations under the License.
15
16#
17set -eu
18
19readonly current_dir="$0.runfiles"
20readonly in="$1"
21readonly out="$2"
22shift 2
23
24readonly tmp_dir="$(mktemp -d)"
25trap "rm -rf ${tmp_dir}" EXIT
26
27readonly jacoco="$(ls ${current_dir}/rules_kotlin/bazel/jacoco_cli)"
28readonly jar="$(which jar)"
29
30# Unzip input Jar and run JaCoCo over it
31mkdir "${tmp_dir}/classes"
32mkdir "${tmp_dir}/instrumented"
33unzip -qq -d "${tmp_dir}/classes" "${in}"
34"${jacoco}" instrument "${tmp_dir}/classes" --dest "${tmp_dir}/instrumented" >/dev/null
35
36# Rename input .class files to .class.uninstrumented
37find "${tmp_dir}/classes" -name '*.class' -exec mv {} {}.uninstrumented \;
38
39# Zip all the files together
40"${jar}" cf "${out}" -C "${tmp_dir}/instrumented" .
41"${jar}" uf "${out}" -C "${tmp_dir}/classes" .
42"${jar}" uf "${out}" "$@"
43