blob: 52ad9e41fb7aba37abf71dad2bf5a0015b01dca7 [file] [log] [blame]
#!/bin/sh
# Copyright (c) 2008, Nanako Shiraishi
# Prime rerere database from existing merge commits
me=rerere-train
USAGE="$me rev-list-args"
SUBDIRECTORY_OK=Yes
OPTIONS_SPEC=
. "$(git --exec-path)/git-sh-setup"
require_work_tree
cd_to_toplevel
# Remember original branch
branch=$(git symbolic-ref -q HEAD) ||
original_HEAD=$(git rev-parse --verify HEAD) || {
echo >&2 "Not on any branch and no commit yet?"
exit 1
}
mkdir -p "$GIT_DIR/rr-cache" || exit
git rev-list --parents "$@" |
while read commit parent1 other_parents
do
if test -z "$other_parents"
then
# Skip non-merges
continue
fi
git checkout -q "$parent1^0"
if git merge $other_parents >/dev/null 2>&1
then
# Cleanly merges
continue
fi
if test -s "$GIT_DIR/MERGE_RR"
then
git show -s --pretty=format:"Learning from %h %s" "$commit"
git rerere
git checkout -q $commit -- .
git rerere
fi
git reset -q --hard
done
if test -z "$branch"
then
git checkout "$original_HEAD"
else
git checkout "${branch#refs/heads/}"
fi