git/contrib/rerere-train.sh
Junio C Hamano 53876fcf3f contrib/rerere-train: use installed git-sh-setup
Instead of sourcing git-sh-setup from random place that is on the $PATH,
explicitly source $(git --exec-path)/git-sh-setup.  As I do not personally
have any libexec/git-core directory on my $PATH like many other people, the
script will fail without this update.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-30 12:50:38 -07:00

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#!/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