xref: /dpdk/devtools/check-git-log.sh (revision 08aa6271c86a561b66c6dd91f9a54fa2f12bc859)
1#! /bin/sh
2
3# BSD LICENSE
4#
5# Copyright 2016 6WIND S.A.
6#
7# Redistribution and use in source and binary forms, with or without
8# modification, are permitted provided that the following conditions
9# are met:
10#
11#   * Redistributions of source code must retain the above copyright
12#     notice, this list of conditions and the following disclaimer.
13#   * Redistributions in binary form must reproduce the above copyright
14#     notice, this list of conditions and the following disclaimer in
15#     the documentation and/or other materials provided with the
16#     distribution.
17#   * Neither the name of 6WIND S.A. nor the names of its
18#     contributors may be used to endorse or promote products derived
19#     from this software without specific prior written permission.
20#
21# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32
33# Check commit logs (headlines and references)
34#
35# If any doubt about the formatting, please check in the most recent history:
36#	git log --format='%>|(15)%cr   %s' --reverse | grep -i <pattern>
37
38if [ "$1" = '-h' -o "$1" = '--help' ] ; then
39	cat <<- END_OF_HELP
40	usage: $(basename $0) [-h] [range]
41
42	Check commit log formatting.
43	The git range can be specified as a "git log" option,
44	e.g. -1 to check only the latest commit.
45	The default range starts from origin/master to HEAD.
46	END_OF_HELP
47	exit
48fi
49
50selfdir=$(dirname $(readlink -f $0))
51range=${1:-origin/master..}
52# convert -N to HEAD~N.. in order to comply with git-log-fixes.sh getopts
53if printf -- $range | grep -q '^-[0-9]\+' ; then
54	range="HEAD$(printf -- $range | sed 's,^-,~,').."
55fi
56
57commits=$(git log --format='%h' --reverse $range)
58headlines=$(git log --format='%s' --reverse $range)
59bodylines=$(git log --format='%b' --reverse $range)
60fixes=$(git log --format='%h %s' --reverse $range | grep -i ': *fix' | cut -d' ' -f1)
61stablefixes=$($selfdir/git-log-fixes.sh $range | sed '/(N\/A)$/d'  | cut -d' ' -f2)
62tags=$(git log --format='%b' --reverse $range | grep -i -e 'by *:' -e 'fix.*:')
63bytag='\(Reported\|Suggested\|Signed-off\|Acked\|Reviewed\|Tested\)-by:'
64
65# check headline format (spacing, no punctuation, no code)
66bad=$(echo "$headlines" | grep --color=always \
67	-e '	' \
68	-e '^ ' \
69	-e ' $' \
70	-e '\.$' \
71	-e '[,;!?&|]' \
72	-e ':.*_' \
73	-e '^[^:]\+$' \
74	-e ':[^ ]' \
75	-e ' :' \
76	| sed 's,^,\t,')
77[ -z "$bad" ] || printf "Wrong headline format:\n$bad\n"
78
79# check headline prefix when touching only drivers, e.g. net/<driver name>
80bad=$(for commit in $commits ; do
81	headline=$(git log --format='%s' -1 $commit)
82	files=$(git diff-tree --no-commit-id --name-only -r $commit)
83	[ -z "$(echo "$files" | grep -v '^\(drivers\|doc\|config\)/')" ] ||
84		continue
85	drv=$(echo "$files" | grep '^drivers/' | cut -d "/" -f 2,3 | sort -u)
86	drvgrp=$(echo "$drv" | cut -d "/" -f 1 | uniq)
87	if [ $(echo "$drvgrp" | wc -l) -gt 1 ] ; then
88		echo "$headline" | grep -v '^drivers:'
89	elif [ $(echo "$drv" | wc -l) -gt 1 ] ; then
90		echo "$headline" | grep -v "^drivers/$drvgrp"
91	else
92		echo "$headline" | grep -v "^$drv"
93	fi
94done | sed 's,^,\t,')
95[ -z "$bad" ] || printf "Wrong headline prefix:\n$bad\n"
96
97# check headline label for common typos
98bad=$(echo "$headlines" | grep --color=always \
99	-e '^example[:/]' \
100	-e '^apps/' \
101	-e '^testpmd' \
102	-e 'test-pmd' \
103	-e '^bond:' \
104	| sed 's,^,\t,')
105[ -z "$bad" ] || printf "Wrong headline label:\n$bad\n"
106
107# check headline lowercase for first words
108bad=$(echo "$headlines" | grep --color=always \
109	-e '^.*[[:upper:]].*:' \
110	-e ': *[[:upper:]]' \
111	| sed 's,^,\t,')
112[ -z "$bad" ] || printf "Wrong headline uppercase:\n$bad\n"
113
114# check headline uppercase (Rx/Tx, VF, L2, MAC, Linux, ARM...)
115bad=$(echo "$headlines" | grep -E --color=always \
116	-e ':.*\<(rx|tx|RX|TX)\>' \
117	-e ':.*\<[pv]f\>' \
118	-e ':.*\<[hsf]w\>' \
119	-e ':.*\<l[234]\>' \
120	-e ':.*\<api\>' \
121	-e ':.*\<arm\>' \
122	-e ':.*\<armv7\>' \
123	-e ':.*\<armv8\>' \
124	-e ':.*\<crc\>' \
125	-e ':.*\<dma\>' \
126	-e ':.*\<freebsd\>' \
127	-e ':.*\<iova\>' \
128	-e ':.*\<linux\>' \
129	-e ':.*\<lro\>' \
130	-e ':.*\<lsc\>' \
131	-e ':.*\<mac\>' \
132	-e ':.*\<mtu\>' \
133	-e ':.*\<nic\>' \
134	-e ':.*\<nvm\>' \
135	-e ':.*\<numa\>' \
136	-e ':.*\<pci\>' \
137	-e ':.*\<pmd\>' \
138	-e ':.*\<rss\>' \
139	-e ':.*\<sctp\>' \
140	-e ':.*\<tso\>' \
141	-e ':.*\<[Vv]lan\>' \
142	-e ':.*\<vsi\>' \
143	| sed 's,^,\t,')
144[ -z "$bad" ] || printf "Wrong headline lowercase:\n$bad\n"
145
146# special case check for VMDq to give good error message
147bad=$(echo "$headlines" | grep -E --color=always \
148	-e '\<(vmdq|VMDQ)\>' \
149	| sed 's,^,\t,')
150[ -z "$bad" ] || printf "Wrong headline capitalization, use 'VMDq':\n$bad\n"
151
152# check headline length (60 max)
153bad=$(echo "$headlines" |
154	awk 'length>60 {print}' |
155	sed 's,^,\t,')
156[ -z "$bad" ] || printf "Headline too long:\n$bad\n"
157
158# check body lines length (75 max)
159bad=$(echo "$bodylines" | grep -v '^Fixes:' |
160	awk 'length>75 {print}' |
161	sed 's,^,\t,')
162[ -z "$bad" ] || printf "Line too long:\n$bad\n"
163
164# check starting commit message with "It"
165bad=$(for commit in $commits ; do
166	firstbodyline=$(git log --format='%b' -1 $commit | head -n1)
167	echo "$firstbodyline" | grep --color=always -ie '^It '
168done | sed 's,^,\t,')
169[ -z "$bad" ] || printf "Wrong beginning of commit message:\n$bad\n"
170
171# check tags spelling
172bad=$(echo "$tags" |
173	grep -v "^$bytag [^,]* <.*@.*>$" |
174	grep -v '^Fixes: [0-9a-f]\{7\}[0-9a-f]* (".*")$' |
175	sed 's,^.,\t&,')
176[ -z "$bad" ] || printf "Wrong tag:\n$bad\n"
177
178# check missing Fixes: tag
179bad=$(for fix in $fixes ; do
180	git log --format='%b' -1 $fix | grep -q '^Fixes: ' ||
181		git log --format='\t%s' -1 $fix
182done)
183[ -z "$bad" ] || printf "Missing 'Fixes' tag:\n$bad\n"
184
185# check Fixes: reference
186IFS='
187'
188fixtags=$(echo "$tags" | grep '^Fixes: ')
189bad=$(for fixtag in $fixtags ; do
190	hash=$(echo "$fixtag" | sed 's,^Fixes: \([0-9a-f]*\).*,\1,')
191	if git branch --contains $hash 2>&- | grep -q '^\*' ; then
192		good="Fixes: $hash "$(git log --format='("%s")' -1 $hash 2>&-)
193	else
194		good="reference not in current branch"
195	fi
196	printf "$fixtag" | grep -v "^$good$"
197done | sed 's,^,\t,')
198[ -z "$bad" ] || printf "Wrong 'Fixes' reference:\n$bad\n"
199
200# check Cc: stable@dpdk.org for fixes
201bad=$(for fix in $stablefixes ; do
202	git log --format='%b' -1 $fix | grep -qi '^Cc: *stable@dpdk.org' ||
203		git log --format='\t%s' -1 $fix
204done)
205[ -z "$bad" ] || printf "Is it candidate for Cc: stable@dpdk.org backport?\n$bad\n"
206