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1#!/bin/bash
2
3set -eu
4
5# Copyright 2020 Google Inc. All rights reserved.
6#
7# Licensed under the Apache License, Version 2.0 (the "License");
8# you may not use this file except in compliance with the License.
9# You may obtain a copy of the License at
10#
11#     http://www.apache.org/licenses/LICENSE-2.0
12#
13# Unless required by applicable law or agreed to in writing, software
14# distributed under the License is distributed on an "AS IS" BASIS,
15# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16# See the License for the specific language governing permissions and
17# limitations under the License.
18
19# Tool to unpack an apex file and verify that the required files were extracted.
20if [ $# -lt 7 ]; then
21  echo "usage: $0 <deapaxer_path> <debugfs_path> <blkid_path> <fsck.erofs_path> <apex file> <output_dir> <required_files>+" >&2
22  exit 1
23fi
24
25DEAPEXER_PATH=$1
26DEBUGFS_PATH=$2
27BLKID_PATH=$3
28FSCK_EROFS_PATH=$4
29APEX_FILE=$5
30OUTPUT_DIR=$6
31shift 6
32REQUIRED_PATHS=$@
33
34rm -fr $OUTPUT_DIR
35mkdir -p $OUTPUT_DIR
36
37# Unpack the apex file contents.
38$DEAPEXER_PATH --debugfs_path $DEBUGFS_PATH \
39               --blkid_path $BLKID_PATH \
40               --fsckerofs_path $FSCK_EROFS_PATH \
41               extract $APEX_FILE $OUTPUT_DIR
42
43# Verify that the files that the build expects to be in the .apex file actually
44# exist, and make sure they have a fresh mtime to not confuse ninja.
45typeset -i FAILED=0
46for r in $REQUIRED_PATHS; do
47  if [ ! -f $r ]; then
48    echo "Required file $r not present in apex $APEX_FILE" >&2
49    FAILED=$FAILED+1
50  else
51    # TODO(http:/b/177646343) - deapexer extracts the files with a timestamp of 1 Jan 1970.
52    # touch the file so that ninja knows it has changed.
53    touch $r
54  fi
55done
56
57if [ $FAILED -gt 0 ]; then
58  echo "$FAILED required files were missing from $APEX_FILE" >&2
59  echo "Available files are:" >&2
60  find $OUTPUT_DIR -type f | sed "s|^|    |" >&2
61  exit 1
62fi
63