aboutsummaryrefslogtreecommitdiffstats
path: root/build-root/scripts/checkstyle.sh
blob: 58f6715411490f122f642941ce870daace4473da (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
#!/bin/bash

# Copyright (c) 2015 Cisco and/or its affiliates.
# 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.

VPP_DIR=`dirname $0`/../../
EXIT_CODE=0
FIX="0"
FULL="0"
CHECKSTYLED_FILES=""
UNCHECKSTYLED_FILES=""

# If the user provides --fix, then actually fix things
# Note: this is meant for use outside of the CI Jobs, by users cleaning things up

while true; do
	case ${1} in
		--fix)
			FIX="1"
			;;
		--full)
			FULL="1"
			;;
	esac
	shift || break
done

if [ "${FULL}" == "1" ]; then
	FILELIST=$(git ls-tree -r HEAD --name-only)
else
	FILELIST=$((git diff HEAD~1.. --name-only; git ls-files -m ) | sort -u)
fi

# Check to make sure we have indent.  Exit if we don't with an error message, but
# don't *fail*.
command -v indent > /dev/null
if [ $? != 0 ]; then
    echo "Cound not find required command \"indent\".  Checkstyle aborted"
    exit ${EXIT_CODE}
fi
indent --version

# Check to make sure we have clang-format.  Exit if we don't with an error message, but
# don't *fail*.
HAVE_CLANG_FORMAT=0
command -v clang-format > /dev/null
if [ $? != 0 ]; then
    echo "Could not find command \"clang-format\". Checking C++ files will cause abort"
else
    clang-format --version
    x=$(echo "" | clang-format 2>&1)
    if [[ "$x" == "" ]]; then
        HAVE_CLANG_FORMAT=1
    else
	echo "Output produced while formatting empty file (expected empty string):"
	echo "$x"
        echo "Could not find working \"clang-format\". Checking C++ files will cause abort"
    fi
fi

cd ${VPP_DIR}
git status
for i in ${FILELIST}; do
    if [ -f ${i} ] && [ ${i} != "build-root/scripts/checkstyle.sh" ] && [ ${i} != "extras/emacs/fix-coding-style.el" ]; then
        grep -q '>>>>>>>' ${i}
        if [ $? == 0 ]; then
            echo "Unresolved merge conflict detected in" ${i} "... Abort."
            exit 1
        fi
        grep -q "fd.io coding-style-patch-verification: ON" ${i}
        if [ $? == 0 ]; then
            EXTENSION=`basename ${i} | sed 's/^\w\+.//'`
            case ${EXTENSION} in
                hpp|cpp|cc|hh)
                    CMD="clang-format"
                    if [ ${HAVE_CLANG_FORMAT} == 0 ]; then
                            echo "C++ file detected. Abort. (missing clang-format)"
                            exit ${EXIT_CODE}
                    fi
                    ;;
                *)
                    CMD="indent"
                    ;;
            esac
            CHECKSTYLED_FILES="${CHECKSTYLED_FILES} ${i}"
            if [ ${FIX} == 0 ]; then
                if [ "${CMD}" == "clang-format" ]
                then
                    clang-format ${i} > ${i}.out2
                else
                    indent ${i} -o ${i}.out1 > /dev/null 2>&1
                    indent ${i}.out1 -o ${i}.out2 > /dev/null 2>&1
                fi
                # Remove trailing whitespace
                sed -i -e 's/[[:space:]]*$//' ${i}.out2
                diff -q ${i} ${i}.out2
            else
                if [ "${CMD}" == "clang-format" ]; then
                    clang-format -i ${i} > /dev/null 2>&1
                else
                    indent ${i}
                    indent ${i}
                fi
                # Remove trailing whitespace
                sed -i -e 's/[[:space:]]*$//' ${i}
            fi
            if [ $? != 0 ]; then
                EXIT_CODE=1
                echo
                echo "Checkstyle failed for ${i}."
                if [ "${CMD}" == "clang-format" ]; then
                    echo "Run clang-format as shown to fix the problem:"
                    echo "clang-format -i ${VPP_DIR}${i}"
                else
                    echo "Run indent (twice!) as shown to fix the problem:"
                    echo "indent ${VPP_DIR}${i}"
                    echo "indent ${VPP_DIR}${i}"
                fi
            fi
            if [ -f ${i}.out1 ]; then
                rm ${i}.out1
            fi
            if [ -f ${i}.out2 ]; then
                rm ${i}.out2
            fi
        else
            UNCHECKSTYLED_FILES="${UNCHECKSTYLED_FILES} ${i}"
        fi
    else
        UNCHECKSTYLED_FILES="${UNCHECKSTYLED_FILES} ${i}"
    fi
done

if [ ${EXIT_CODE} == 0 ]; then
    echo "*******************************************************************"
    echo "* VPP CHECKSTYLE SUCCESSFULLY COMPLETED"
    echo "*******************************************************************"
else
    echo "*******************************************************************"
    echo "* VPP CHECKSTYLE FAILED"
    echo "* CONSULT FAILURE LOG ABOVE"
    echo "* NOTE: Running 'build-root/scripts/checkstyle.sh --fix' *MAY* fix the issue"
    echo "*******************************************************************"
fi
exit ${EXIT_CODE}