xref: /dpdk/devtools/check-git-log.sh (revision b53d106d34b5c638f5a2cbdfee0da5bd42d4383f)
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
10print_usage () {
11	cat <<- END_OF_HELP
12	usage: $(basename $0) [-h] [-nX|-r range]
13
14	Check commit log formatting.
15	The git commits to be checked can be specified as a "git log" option,
16	by latest git commits limited with -n option, or commits in the git
17	range specified with -r option.
18	e.g. To check only the last commit, ‘-n1’ or ‘-r@~..’ is used.
19	If no range provided, default is origin/main..HEAD.
20	END_OF_HELP
21}
22
23selfdir=$(dirname $(readlink -f $0))
24# The script caters for two formats, the new preferred format, and the old
25# format to ensure backward compatibility.
26# The new format is aligned with the format of the checkpatches script,
27# and allows for specifying the patches to check by passing -nX or -r range.
28# The old format allows for specifying patches by passing -X or range
29# as the first argument.
30range=${1:-origin/main..}
31
32if [ "$range" = '--help' ] ; then
33	print_usage
34	exit 0
35# convert -N to HEAD~N.. in order to comply with git-log-fixes.sh getopts
36elif printf -- "$range" | grep -q '^-[0-9]\+' ; then
37	range="HEAD$(printf -- "$range" | sed 's,^-,~,').."
38else
39	while getopts hr:n: ARG ; do
40		case $ARG in
41			n ) range="HEAD~$OPTARG.." ;;
42			r ) range=$OPTARG ;;
43			h ) print_usage ; exit 0 ;;
44			? ) print_usage ; exit 1 ;;
45		esac
46	done
47	shift $(($OPTIND - 1))
48fi
49
50commits=$(git log --format='%h' --reverse $range)
51headlines=$(git log --format='%s' --reverse $range)
52bodylines=$(git log --format='%b' --reverse $range)
53fixes=$(git log --format='%h %s' --reverse $range | grep -i ': *fix' | cut -d' ' -f1)
54stablefixes=$($selfdir/git-log-fixes.sh $range | sed '/(N\/A)$/d'  | cut -d' ' -f2)
55tags=$(git log --format='%b' --reverse $range | grep -i -e 'by *:' -e 'fix.*:')
56bytag='\(Reported\|Suggested\|Signed-off\|Acked\|Reviewed\|Tested\)-by:'
57
58failure=false
59
60# check headline format (spacing, no punctuation, no code)
61bad=$(echo "$headlines" | grep --color=always \
62	-e '	' \
63	-e '^ ' \
64	-e ' $' \
65	-e '\.$' \
66	-e '[,;!?&|]' \
67	-e ':.*_' \
68	-e '^[^:]\+$' \
69	-e ':[^ ]' \
70	-e ' :' \
71	| sed 's,^,\t,')
72[ -z "$bad" ] || { printf "Wrong headline format:\n$bad\n" && failure=true;}
73
74# check headline prefix when touching only drivers, e.g. net/<driver name>
75bad=$(for commit in $commits ; do
76	headline=$(git log --format='%s' -1 $commit)
77	files=$(git diff-tree --no-commit-id --name-only -r $commit)
78	[ -z "$(echo "$files" | grep -v '^\(drivers\|doc\|config\)/')" ] ||
79		continue
80	drv=$(echo "$files" | grep '^drivers/' | cut -d "/" -f 2,3 | sort -u)
81	drvgrp=$(echo "$drv" | cut -d "/" -f 1 | uniq)
82	if [ $(echo "$drvgrp" | wc -l) -gt 1 ] ; then
83		echo "$headline" | grep -v '^drivers:'
84	elif [ $(echo "$drv" | wc -l) -gt 1 ] ; then
85		echo "$headline" | grep -v "^drivers/$drvgrp"
86	else
87		echo "$headline" | grep -v "^$drv"
88	fi
89done | sed 's,^,\t,')
90[ -z "$bad" ] || { printf "Wrong headline prefix:\n$bad\n" && failure=true;}
91
92# check headline prefix for libraries
93bad=$(echo "$headlines" | grep --color=always \
94	-e '^lib/' \
95	| sed 's,^,\t,')
96[ -z "$bad" ] || { printf "Wrong headline prefix:\n$bad\n" && failure=true;}
97
98# check headline label for common typos
99bad=$(echo "$headlines" | grep --color=always \
100	-e '^example[:/]' \
101	-e '^apps/' \
102	-e '^testpmd' \
103	-e 'test-pmd' \
104	-e '^bond:' \
105	| sed 's,^,\t,')
106[ -z "$bad" ] || { printf "Wrong headline label:\n$bad\n" && failure=true;}
107
108# check headline lowercase for first words
109bad=$(echo "$headlines" | grep --color=always \
110	-e '^.*[[:upper:]].*:' \
111	-e ': *[[:upper:]]' \
112	| sed 's,^,\t,')
113[ -z "$bad" ] || { printf "Wrong headline uppercase:\n$bad\n" && failure=true;}
114
115# check headline case (Rx/Tx, VF, L2, MAC, Linux ...)
116IFS='
117'
118words="$selfdir/words-case.txt"
119for word in $(cat $words); do
120	bad=$(echo "$headlines" | grep -iw $word | grep -vw $word)
121	if [ "$word" = "Tx" ]; then
122		bad=$(echo $bad | grep -v 'OCTEON\ TX')
123	fi
124	for bad_line in $bad; do
125		bad_word=$(echo $bad_line | cut -d":" -f2 | grep -iwo $word)
126		[ -z "$bad_word" ] || { printf "Wrong headline case:\n\
127			\"$bad_line\": $bad_word --> $word\n" && failure=true;}
128	done
129done
130
131# check headline length (60 max)
132bad=$(echo "$headlines" |
133	awk 'length>60 {print}' |
134	sed 's,^,\t,')
135[ -z "$bad" ] || { printf "Headline too long:\n$bad\n" && failure=true;}
136
137# check body lines length (75 max)
138bad=$(echo "$bodylines" | grep -v '^Fixes:' |
139	awk 'length>75 {print}' |
140	sed 's,^,\t,')
141[ -z "$bad" ] || { printf "Line too long:\n$bad\n" && failure=true;}
142
143# check starting commit message with "It"
144bad=$(for commit in $commits ; do
145	firstbodyline=$(git log --format='%b' -1 $commit | head -n1)
146	echo "$firstbodyline" | grep --color=always -ie '^It '
147done | sed 's,^,\t,')
148[ -z "$bad" ] || { printf "Wrong beginning of commit message:\n$bad\n"\
149	&& failure=true;}
150
151# check tags spelling
152bad=$(echo "$tags" |
153	grep -v "^$bytag [^,]* <.*@.*>$" |
154	grep -v '^Fixes: [0-9a-f]\{7\}[0-9a-f]* (".*")$' |
155	sed 's,^.,\t&,')
156[ -z "$bad" ] || { printf "Wrong tag:\n$bad\n" && failure=true;}
157
158# check missing Coverity issue: tag
159bad=$(for commit in $commits; do
160	body=$(git log --format='%b' -1 $commit)
161	echo "$body" | grep -qi coverity || continue
162	echo "$body" | grep -q '^Coverity issue:' && continue
163	git log --format='\t%s' -1 $commit
164done)
165[ -z "$bad" ] || { printf "Missing 'Coverity issue:' tag:\n$bad\n"\
166	&& failure=true;}
167
168# check missing Bugzilla ID: tag
169bad=$(for commit in $commits; do
170	body=$(git log --format='%b' -1 $commit)
171	echo "$body" | grep -qi bugzilla || continue
172	echo "$body" | grep -q '^Bugzilla ID:' && continue
173	git log --format='\t%s' -1 $commit
174done)
175[ -z "$bad" ] || { printf "Missing 'Bugzilla ID:' tag:\n$bad\n"\
176	&& failure=true;}
177
178# check missing Fixes: tag
179bad=$(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$bad\n" && failure=true;}
184
185# check Fixes: reference
186fixtags=$(echo "$tags" | grep '^Fixes: ')
187bad=$(for fixtag in $fixtags ; do
188	hash=$(echo "$fixtag" | sed 's,^Fixes: \([0-9a-f]*\).*,\1,')
189	if git branch --contains $hash 2>&- | grep -q '^\*' ; then
190		good="Fixes: $hash "$(git log --format='("%s")' -1 $hash 2>&-)
191	else
192		good="reference not in current branch"
193	fi
194	printf "$fixtag" | grep -v "^$good$"
195done | sed 's,^,\t,')
196[ -z "$bad" ] || { printf "Wrong 'Fixes' reference:\n$bad\n" && failure=true;}
197
198# check Cc: stable@dpdk.org for fixes
199bad=$(for fix in $stablefixes ; do
200	git log --format='%b' -1 $fix | grep -qi '^Cc: *stable@dpdk.org' ||
201		git log --format='\t%s' -1 $fix
202done)
203[ -z "$bad" ] || { printf "Is it candidate for Cc: stable@dpdk.org backport?\n$bad\n"\
204	&& failure=true;}
205
206total=$(echo "$commits" | wc -l)
207if $failure ; then
208	printf "\nInvalid patch(es) found - checked $total patch"
209else
210	printf "\n$total/$total valid patch"
211fi
212[ $total -le 1 ] || printf 'es'
213printf '\n'
214$failure && exit 1 || exit 0
215