xref: /dpdk/devtools/check-git-log.sh (revision 2808423a9ce42a748aed77a4b487be27d2b6acfa)
1#! /bin/sh
2# SPDX-License-Identifier: BSD-3-Clause
3# Copyright 2016 6WIND S.A.
4
5# Check commit logs (headlines and references)
6#
7# If any doubt about the formatting, please check in the most recent history:
8#	git log --format='%>|(15)%cr   %s' --reverse | grep -i <pattern>
9
10if [ "$1" = '-h' -o "$1" = '--help' ] ; then
11	cat <<- END_OF_HELP
12	usage: $(basename $0) [-h] [range]
13
14	Check commit log formatting.
15	The git range can be specified as a "git log" option,
16	e.g. -1 to check only the latest commit.
17	The default range starts from origin/master to HEAD.
18	END_OF_HELP
19	exit
20fi
21
22selfdir=$(dirname $(readlink -f $0))
23range=${1:-origin/master..}
24# convert -N to HEAD~N.. in order to comply with git-log-fixes.sh getopts
25if printf -- $range | grep -q '^-[0-9]\+' ; then
26	range="HEAD$(printf -- $range | sed 's,^-,~,').."
27fi
28
29commits=$(git log --format='%h' --reverse $range)
30headlines=$(git log --format='%s' --reverse $range)
31bodylines=$(git log --format='%b' --reverse $range)
32fixes=$(git log --format='%h %s' --reverse $range | grep -i ': *fix' | cut -d' ' -f1)
33stablefixes=$($selfdir/git-log-fixes.sh $range | sed '/(N\/A)$/d'  | cut -d' ' -f2)
34tags=$(git log --format='%b' --reverse $range | grep -i -e 'by *:' -e 'fix.*:')
35bytag='\(Reported\|Suggested\|Signed-off\|Acked\|Reviewed\|Tested\)-by:'
36
37# check headline format (spacing, no punctuation, no code)
38bad=$(echo "$headlines" | grep --color=always \
39	-e '	' \
40	-e '^ ' \
41	-e ' $' \
42	-e '\.$' \
43	-e '[,;!?&|]' \
44	-e ':.*_' \
45	-e '^[^:]\+$' \
46	-e ':[^ ]' \
47	-e ' :' \
48	| sed 's,^,\t,')
49[ -z "$bad" ] || printf "Wrong headline format:\n$bad\n"
50
51# check headline prefix when touching only drivers, e.g. net/<driver name>
52bad=$(for commit in $commits ; do
53	headline=$(git log --format='%s' -1 $commit)
54	files=$(git diff-tree --no-commit-id --name-only -r $commit)
55	[ -z "$(echo "$files" | grep -v '^\(drivers\|doc\|config\)/')" ] ||
56		continue
57	drv=$(echo "$files" | grep '^drivers/' | cut -d "/" -f 2,3 | sort -u)
58	drvgrp=$(echo "$drv" | cut -d "/" -f 1 | uniq)
59	if [ $(echo "$drvgrp" | wc -l) -gt 1 ] ; then
60		echo "$headline" | grep -v '^drivers:'
61	elif [ $(echo "$drv" | wc -l) -gt 1 ] ; then
62		echo "$headline" | grep -v "^drivers/$drvgrp"
63	else
64		echo "$headline" | grep -v "^$drv"
65	fi
66done | sed 's,^,\t,')
67[ -z "$bad" ] || printf "Wrong headline prefix:\n$bad\n"
68
69# check headline label for common typos
70bad=$(echo "$headlines" | grep --color=always \
71	-e '^example[:/]' \
72	-e '^apps/' \
73	-e '^testpmd' \
74	-e 'test-pmd' \
75	-e '^bond:' \
76	| sed 's,^,\t,')
77[ -z "$bad" ] || printf "Wrong headline label:\n$bad\n"
78
79# check headline lowercase for first words
80bad=$(echo "$headlines" | grep --color=always \
81	-e '^.*[[:upper:]].*:' \
82	-e ': *[[:upper:]]' \
83	| sed 's,^,\t,')
84[ -z "$bad" ] || printf "Wrong headline uppercase:\n$bad\n"
85
86# check headline uppercase (Rx/Tx, VF, L2, MAC, Linux, ARM...)
87bad=$(echo "$headlines" | grep -E --color=always \
88	-e ':.*\<(rx|tx|RX|TX)\>' \
89	-e ':.*\<[pv]f\>' \
90	-e ':.*\<[hsf]w\>' \
91	-e ':.*\<l[234]\>' \
92	-e ':.*\<api\>' \
93	-e ':.*\<arm\>' \
94	-e ':.*\<armv7\>' \
95	-e ':.*\<armv8\>' \
96	-e ':.*\<crc\>' \
97	-e ':.*\<dma\>' \
98	-e ':.*\<eeprom\>' \
99	-e ':.*\<freebsd\>' \
100	-e ':.*\<iova\>' \
101	-e ':.*\<linux\>' \
102	-e ':.*\<lro\>' \
103	-e ':.*\<lsc\>' \
104	-e ':.*\<mac\>' \
105	-e ':.*\<mss\>' \
106	-e ':.*\<mtu\>' \
107	-e ':.*\<nic\>' \
108	-e ':.*\<nvm\>' \
109	-e ':.*\<numa\>' \
110	-e ':.*\<pci\>' \
111	-e ':.*\<pmd\>' \
112	-e ':.*\<rss\>' \
113	-e ':.*\<sctp\>' \
114	-e ':.*\<tso\>' \
115	-e ':.*\<udp\>' \
116	-e ':.*\<[Vv]lan\>' \
117	-e ':.*\<vdpa\>' \
118	-e ':.*\<vsi\>' \
119	| sed 's,^,\t,')
120[ -z "$bad" ] || printf "Wrong headline lowercase:\n$bad\n"
121
122# special case check for VMDq to give good error message
123bad=$(echo "$headlines" | grep -E --color=always \
124	-e '\<(vmdq|VMDQ)\>' \
125	| sed 's,^,\t,')
126[ -z "$bad" ] || printf "Wrong headline capitalization, use 'VMDq':\n$bad\n"
127
128# check headline length (60 max)
129bad=$(echo "$headlines" |
130	awk 'length>60 {print}' |
131	sed 's,^,\t,')
132[ -z "$bad" ] || printf "Headline too long:\n$bad\n"
133
134# check body lines length (75 max)
135bad=$(echo "$bodylines" | grep -v '^Fixes:' |
136	awk 'length>75 {print}' |
137	sed 's,^,\t,')
138[ -z "$bad" ] || printf "Line too long:\n$bad\n"
139
140# check starting commit message with "It"
141bad=$(for commit in $commits ; do
142	firstbodyline=$(git log --format='%b' -1 $commit | head -n1)
143	echo "$firstbodyline" | grep --color=always -ie '^It '
144done | sed 's,^,\t,')
145[ -z "$bad" ] || printf "Wrong beginning of commit message:\n$bad\n"
146
147# check tags spelling
148bad=$(echo "$tags" |
149	grep -v "^$bytag [^,]* <.*@.*>$" |
150	grep -v '^Fixes: [0-9a-f]\{7\}[0-9a-f]* (".*")$' |
151	sed 's,^.,\t&,')
152[ -z "$bad" ] || printf "Wrong tag:\n$bad\n"
153
154# check missing Fixes: tag
155bad=$(for fix in $fixes ; do
156	git log --format='%b' -1 $fix | grep -q '^Fixes: ' ||
157		git log --format='\t%s' -1 $fix
158done)
159[ -z "$bad" ] || printf "Missing 'Fixes' tag:\n$bad\n"
160
161# check Fixes: reference
162IFS='
163'
164fixtags=$(echo "$tags" | grep '^Fixes: ')
165bad=$(for fixtag in $fixtags ; do
166	hash=$(echo "$fixtag" | sed 's,^Fixes: \([0-9a-f]*\).*,\1,')
167	if git branch --contains $hash 2>&- | grep -q '^\*' ; then
168		good="Fixes: $hash "$(git log --format='("%s")' -1 $hash 2>&-)
169	else
170		good="reference not in current branch"
171	fi
172	printf "$fixtag" | grep -v "^$good$"
173done | sed 's,^,\t,')
174[ -z "$bad" ] || printf "Wrong 'Fixes' reference:\n$bad\n"
175
176# check Cc: stable@dpdk.org for fixes
177bad=$(for fix in $stablefixes ; do
178	git log --format='%b' -1 $fix | grep -qi '^Cc: *stable@dpdk.org' ||
179		git log --format='\t%s' -1 $fix
180done)
181[ -z "$bad" ] || printf "Is it candidate for Cc: stable@dpdk.org backport?\n$bad\n"
182