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#! /bin/sh
# BSD LICENSE
#
# Copyright 2016 6WIND S.A.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# * Neither the name of 6WIND S.A. nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# Check commit logs (headlines and references)
#
# If any doubt about the formatting, please check in the most recent history:
# git log --format='%>|(15)%cr %s' --reverse | grep -i <pattern>
if [ "$1" = '-h' -o "$1" = '--help' ] ; then
cat <<- END_OF_HELP
usage: $(basename $0) [-h] [range]
Check commit log formatting.
The git range can be specified as a "git log" option,
e.g. -1 to check only the latest commit.
The default range starts from origin/master to HEAD.
END_OF_HELP
exit
fi
range=${1:-origin/master..}
commits=$(git log --format='%h' $range)
headlines=$(git log --format='%s' $range)
bodylines=$(git log --format='%b' $range)
fixes=$(git log --format='%h %s' $range | grep -i ': *fix' | cut -d' ' -f1)
tags=$(git log --format='%b' $range | grep -i -e 'by *:' -e 'fix.*:')
bytag='\(Reported\|Suggested\|Signed-off\|Acked\|Reviewed\|Tested\)-by:'
# check headline format (spacing, no punctuation, no code)
bad=$(echo "$headlines" | grep --color=always \
-e ' ' \
-e '^ ' \
-e ' $' \
-e '\.$' \
-e '[,;!?&|]' \
-e ':.*_' \
-e '^[^:]\+$' \
-e ':[^ ]' \
-e ' :' \
| sed 's,^,\t,')
[ -z "$bad" ] || printf "Wrong headline format:\n$bad\n"
# check headline prefix when touching only drivers, e.g. net/<driver name>
bad=$(for commit in $commits ; do
headline=$(git log --format='%s' -1 $commit)
files=$(git diff-tree --no-commit-id --name-only -r $commit)
[ -z "$(echo "$files" | grep -v '^\(drivers\|doc\|config\)/')" ] ||
continue
drv=$(echo "$files" | grep '^drivers/' | cut -d "/" -f 2,3 | sort -u)
drvgrp=$(echo "$drv" | cut -d "/" -f 1 | uniq)
if [ $(echo "$drvgrp" | wc -l) -gt 1 ] ; then
echo "$headline" | grep -v '^drivers:'
elif [ $(echo "$drv" | wc -l) -gt 1 ] ; then
echo "$headline" | grep -v "^$drvgrp"
else
echo "$headline" | grep -v "^$drv"
fi
done | sed 's,^,\t,')
[ -z "$bad" ] || printf "Wrong headline prefix:\n$bad\n"
# check headline label for common typos
bad=$(echo "$headlines" | grep --color=always \
-e '^example[:/]' \
-e '^apps/' \
-e '^testpmd' \
-e 'test-pmd' \
-e '^bond:' \
| sed 's,^,\t,')
[ -z "$bad" ] || printf "Wrong headline label:\n$bad\n"
# check headline lowercase for first words
bad=$(echo "$headlines" | grep --color=always \
-e '^.*[A-Z].*:' \
-e ': *[A-Z]' \
| sed 's,^,\t,')
[ -z "$bad" ] || printf "Wrong headline uppercase:\n$bad\n"
# check headline uppercase (Rx/Tx, VF, L2, MAC, Linux, ARM...)
bad=$(echo "$headlines" | grep -E --color=always \
-e '\<(rx|tx|RX|TX)\>' \
-e '\<[pv]f\>' \
-e '\<[hsf]w\>' \
-e '\<l[234]\>' \
-e ':.*\<api\>' \
-e ':.*\<dma\>' \
-e ':.*\<pci\>' \
-e ':.*\<mtu\>' \
-e ':.*\<mac\>' \
-e ':.*\<numa\>' \
-e ':.*\<vlan\>' \
-e ':.*\<rss\>' \
-e ':.*\<freebsd\>' \
-e ':.*\<linux\>' \
-e ':.*\<tilegx\>' \
-e ':.*\<tile-gx\>' \
-e ':.*\<arm\>' \
-e ':.*\<armv7\>' \
-e ':.*\<armv8\>' \
| sed 's,^,\t,')
[ -z "$bad" ] || printf "Wrong headline lowercase:\n$bad\n"
# special case check for VMDq to give good error message
bad=$(echo "$headlines" | grep -E --color=always \
-e '\<(vmdq|VMDQ)\>' \
| sed 's,^,\t,')
[ -z "$bad" ] || printf "Wrong headline capitalization, use 'VMDq':\n$bad\n"
# check headline length (60 max)
bad=$(echo "$headlines" |
awk 'length>60 {print}' |
sed 's,^,\t,')
[ -z "$bad" ] || printf "Headline too long:\n$bad\n"
# check body lines length (75 max)
bad=$(echo "$bodylines" | grep -v '^Fixes:' |
awk 'length>75 {print}' |
sed 's,^,\t,')
[ -z "$bad" ] || printf "Line too long:\n$bad\n"
# check starting commit message with "It"
bad=$(for commit in $commits ; do
firstbodyline=$(git log --format='%b' -1 $commit | head -n1)
echo "$firstbodyline" | grep --color=always -ie '^It '
done | sed 's,^,\t,')
[ -z "$bad" ] || printf "Wrong beginning of commit message:\n$bad\n"
# check tags spelling
bad=$(echo "$tags" |
grep -v "^$bytag [^,]* <.*@.*>$" |
grep -v '^Fixes: [0-9a-f]\{7\}[0-9a-f]* (".*")$' |
sed 's,^.,\t&,')
[ -z "$bad" ] || printf "Wrong tag:\n$bad\n"
# check blank line after last Fixes: tag
bad=$(echo "$bodylines" |
sed -n 'N;/\nFixes:/D;/\n$/D;/^Fixes:/P' |
sed 's,^.,\t&,')
[ -z "$bad" ] || printf "Missing blank line after 'Fixes' tag:\n$bad\n"
# check missing Fixes: tag
bad=$(for fix in $fixes ; do
git log --format='%b' -1 $fix | grep -q '^Fixes: ' ||
git log --format='\t%s' -1 $fix
done)
[ -z "$bad" ] || printf "Missing 'Fixes' tag:\n$bad\n"
# check Fixes: reference
IFS='
'
fixtags=$(echo "$tags" | grep '^Fixes: ')
bad=$(for fixtag in $fixtags ; do
hash=$(echo "$fixtag" | sed 's,^Fixes: \([0-9a-f]*\).*,\1,')
if git branch --contains $hash | grep -q '^\*' ; then
good="Fixes: $hash "$(git log --format='("%s")' -1 $hash 2>&-)
else
good="reference not in current branch"
fi
printf "$fixtag" | grep -v "^$good$"
done | sed 's,^,\t,')
[ -z "$bad" ] || printf "Wrong 'Fixes' reference:\n$bad\n"
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