blob: 8fa4f438771680f72c0faeb64f3e6bb281c8fdc6 [file] [log] [blame]
#!/bin/sh
# Script for generating a list of candidates for cherry-picking to a stable branch
#
# Usage examples:
#
# $ bin/get-pick-list.sh
# $ bin/get-pick-list.sh > picklist
# $ bin/get-pick-list.sh | tee picklist
#
# The output is as follows:
# [nomination_type] commit_sha commit summary
is_stable_nomination()
{
git show --pretty=medium --summary "$1" | grep -q -i -o "CC:.*mesa-stable"
}
is_typod_nomination()
{
git show --pretty=medium --summary "$1" | grep -q -i -o "CC:.*mesa-dev"
}
fixes=
# Helper to handle various mistypos of the fixes tag.
# The tag string itself is passed as argument and normalised within.
#
# Resulting string in the global variable "fixes" and contains entries
# in the form "fixes:$sha"
is_sha_nomination()
{
fixes=`git show --pretty=medium -s $1 | tr -d "\n" | \
sed -e 's/'"$2"'/\nfixes:/Ig' | \
grep -Eo 'fixes:[a-f0-9]{8,40}'`
fixes_count=`echo "$fixes" | grep "fixes:" | wc -l`
if test $fixes_count -eq 0; then
return 1
fi
# Throw a warning for each invalid sha
while test $fixes_count -gt 0; do
# Treat only the current line
id=`echo "$fixes" | tail -n $fixes_count | head -n 1 | cut -d : -f 2`
fixes_count=$(($fixes_count-1))
if ! git show $id >/dev/null 2>&1; then
echo WARNING: Commit $1 lists invalid sha $id
fi
done
return 0
}
# Checks if at least one of offending commits, listed in the global
# "fixes", is in branch.
sha_in_range()
{
fixes_count=`echo "$fixes" | grep "fixes:" | wc -l`
while test $fixes_count -gt 0; do
# Treat only the current line
id=`echo "$fixes" | tail -n $fixes_count | head -n 1 | cut -d : -f 2`
fixes_count=$(($fixes_count-1))
# Be that cherry-picked ...
# ... or landed before the branchpoint.
if grep -q ^$id already_picked ||
grep -q ^$id already_landed ; then
return 0
fi
done
return 1
}
is_fixes_nomination()
{
is_sha_nomination "$1" "fixes:[[:space:]]*"
if test $? -eq 0; then
return 0
fi
is_sha_nomination "$1" "fixes[[:space:]]\+"
}
is_brokenby_nomination()
{
is_sha_nomination "$1" "broken by"
}
is_revert_nomination()
{
is_sha_nomination "$1" "This reverts commit "
}
# Use the last branchpoint as our limit for the search
latest_branchpoint=`git merge-base origin/master HEAD`
# List all the commits between day 1 and the branch point...
git log --reverse --pretty=%H $latest_branchpoint > already_landed
# ... and the ones cherry-picked.
git log --reverse --pretty=medium --grep="cherry picked from commit" $latest_branchpoint..HEAD |\
grep "cherry picked from commit" |\
sed -e 's/^[[:space:]]*(cherry picked from commit[[:space:]]*//' -e 's/)//' > already_picked
# Grep for potential candidates
git log --reverse --pretty=%H -i --grep='^CC:.*mesa-stable\|^CC:.*mesa-dev\|\<fixes\>\|\<broken by\>\|This reverts commit' $latest_branchpoint..origin/master |\
while read sha
do
# Check to see whether the patch is on the ignore list.
if test -f bin/.cherry-ignore; then
if grep -q ^$sha bin/.cherry-ignore ; then
continue
fi
fi
# Check to see if it has already been picked over.
if grep -q ^$sha already_picked ; then
continue
fi
if is_fixes_nomination "$sha"; then
tag=fixes
elif is_brokenby_nomination "$sha"; then
tag=brokenby
elif is_revert_nomination "$sha"; then
tag=revert
elif is_stable_nomination "$sha"; then
tag=stable
elif is_typod_nomination "$sha"; then
tag=typod
else
continue
fi
case "$tag" in
fixes | brokenby | revert )
if ! sha_in_range; then
continue
fi
;;
* )
;;
esac
printf "[ %8s ] " "$tag"
git --no-pager show --no-patch --oneline $sha
done
rm -f already_picked
rm -f already_landed