1#!/bin/bash
2#
3#  Copyright (c) 2020, The OpenThread Authors.
4#  All rights reserved.
5#
6#  Redistribution and use in source and binary forms, with or without
7#  modification, are permitted provided that the following conditions are met:
8#  1. Redistributions of source code must retain the above copyright
9#     notice, this list of conditions and the following disclaimer.
10#  2. Redistributions in binary form must reproduce the above copyright
11#     notice, this list of conditions and the following disclaimer in the
12#     documentation and/or other materials provided with the distribution.
13#  3. Neither the name of the copyright holder nor the
14#     names of its contributors may be used to endorse or promote products
15#     derived from this software without specific prior written permission.
16#
17#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18#  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19#  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20#  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
21#  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22#  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23#  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24#  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25#  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26#  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27#  POSSIBILITY OF SUCH DAMAGE.
28#
29
30set -euo pipefail
31
32OT_SHA_OLD="$(git cat-file -p HEAD | grep 'parent ' | head -n1 | cut -d' ' -f2)"
33readonly OT_SHA_OLD
34
35OT_VERSIONS_FILE=tmp/api_versions
36readonly OT_VERSIONS_FILE
37
38die()
39{
40    echo >&2 "ERROR: $*"
41    exit 1
42}
43
44main()
45{
46    mkdir -p tmp
47
48    echo "The main branch must be ${OT_SHA_OLD}"
49
50    git fetch --depth 1 origin "${OT_SHA_OLD}"
51
52    if git diff --name-only --exit-code "${OT_SHA_OLD}" -- include/openthread; then
53        echo 'No OpenThread public APIs updates.'
54        exit 0
55    fi
56
57    git diff "${OT_SHA_OLD}" -- include/openthread | tee >(cat >&2) | grep -aP '[-+]#define OPENTHREAD_API_VERSION (.+)' >"${OT_VERSIONS_FILE}" || die 'Version number is not updated!'
58
59    [[ $(wc -l <"${OT_VERSIONS_FILE}") == 2 ]] || die 'Multiple OPENTHREAD_API_VERSION definitions found!'
60
61    old_version=$(grep -aoP '(?<=-#define OPENTHREAD_API_VERSION ).+' "${OT_VERSIONS_FILE}") || die 'Failed to find old version!'
62    new_version=$(grep -aoP '(?<=\+#define OPENTHREAD_API_VERSION ).+' "${OT_VERSIONS_FILE}") || die 'Failed to find new version!'
63
64    echo -e '\n--------------------------\n'
65
66    echo "Old version: ${old_version}"
67    echo "New version: ${new_version}"
68
69    [[ $((new_version - old_version)) -gt 0 ]] || die 'Version is not increased!'
70
71    echo -e '\n--------------------------\n'
72
73    echo 'PASS: version check.'
74}
75
76main "$@"
77