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#! /bin/sh -e
# 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.
print_usage ()
{
echo "usage: $(basename $0) [-h] <git_range>"
}
print_help ()
{
print_usage
cat <<- END_OF_HELP
Find fixes to backport on previous versions.
It looks for the word "fix" in the headline or a tag "Fixes" or "Reverts".
The oldest bug origin is printed as well as partially fixed versions.
END_OF_HELP
}
usage_error () # <message>
{
echo "$*" >&2
print_usage >&2
exit 1
}
while getopts h ARG ; do
case $ARG in
h ) print_help ; exit 0 ;;
? ) print_usage >&2 ; exit 1 ;;
esac
done
shift $(($OPTIND - 1))
[ $# -ge 1 ] || usage_error 'range argument required'
range="$*"
# get major release version of a commit
commit_version () # <hash>
{
tag=$(git tag -l --contains $1 | head -n1)
if [ -z "$tag" ] ; then
# before -rc1 tag of release in progress
make showversion | cut -d'.' -f-2
else
echo $tag | sed 's,^v,,' | sed 's,-rc.*,,'
fi
}
# get bug origin hashes of a fix
origin_filter () # <hash>
{
git log --format='%b' -1 $1 |
sed -n 's,^ *\([Ff]ixes\|[Rr]everts\): *\([0-9a-f]*\).*,\2,p'
}
# get oldest major release version of bug origins
origin_version () # <origin_hash> ...
{
for origin in $* ; do
# check hash is valid
git rev-parse -q --verify $1 >&- || continue
# get version of this bug origin
local origver=$(commit_version $origin)
local roothashes="$(origin_filter $origin)"
if [ -n "$roothashes" ] ; then
# look chained fix of fix recursively
local rootver="$(origin_version $roothashes)"
[ -n "$rootver" ] || continue
echo "$rootver (partially fixed in $origver)"
else
echo "$origver"
fi
# filter the oldest origin
done | sort -uV | head -n1
}
# print a marker for stable tag presence
stable_tag () # <hash>
{
if git log --format='%b' -1 $1 | grep -qi '^Cc: *stable@dpdk.org' ; then
echo 'S'
else
echo '-'
fi
}
git log --oneline --reverse $range |
while read id headline ; do
origins=$(origin_filter $id)
stable=$(stable_tag $id)
[ "$stable" = "S" ] || [ -n "$origins" ] || echo "$headline" | grep -q fix || continue
version=$(commit_version $id)
if [ -n "$origins" ] ; then
origver="$(origin_version $origins)"
[ -n "$origver" ] || continue
# ignore fix of bug introduced in the same release
! echo "$origver" | grep -q "^$version" || continue
else
origver='N/A'
fi
printf '%s %7s %s %s (%s)\n' $version $id $stable "$headline" "$origver"
done
|
