#/bin/sh

# Usage: check-series [upstream-commit]

# Checks each commit in a patch series (topic branch) by running the
# script devel/check-commit. If check-commit fails (exits with
# non-zero status), the user is left in the middle of a git rebase, and
# can fix the commit, e.g. using git commit --amend, followed by
# "git rebase --continue". If all else fails, "git rebase --abort" should
# get you back to where you started.
#
# NOTE: this runs "make test" many times, so it can take a while.
#

trap cleanup EXIT

cleanup () {
    if [ -n "$tmpdir" ]; then
	rm -rf $tmpdir
    fi
}

upstream=master
if [ -n "$1" ]; then
    upstream="$1"
fi

# make sure we always run the most recent version of check-commit
# in particular cope with it going away.
tmpdir=$(mktemp -d)
cp devel/check-commit $tmpdir

GIT_SEQUENCE_EDITOR="perl -pi -e 's,^\s*([^#\s].*)$,\1\nexec $tmpdir/check-commit,'" git rebase -i $upstream