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|
#!/bin/sh
#
# Copyright (c) 2005, 2006 Linus Torvalds and Junio C Hamano
#
USAGE='[--mixed | --soft | --hard] [<commit-ish>] [ [--] <paths>...]'
SUBDIRECTORY_OK=Yes
. git-sh-setup
set_reflog_action "reset $*"
update= reset_type=--mixed
unset rev
while case $# in 0) break ;; esac
do
case "$1" in
--mixed | --soft | --hard)
reset_type="$1"
;;
--)
break
;;
-*)
usage
;;
*)
rev=$(git-rev-parse --verify "$1") || exit
shift
break
;;
esac
shift
done
: ${rev=HEAD}
rev=$(git-rev-parse --verify $rev^0) || exit
# Skip -- in "git reset HEAD -- foo" and "git reset -- foo".
case "$1" in --) shift ;; esac
# git reset --mixed tree [--] paths... can be used to
# load chosen paths from the tree into the index without
# affecting the working tree nor HEAD.
if test $# != 0
then
test "$reset_type" == "--mixed" ||
die "Cannot do partial $reset_type reset."
git-diff-index --cached $rev -- "$@" |
sed -e 's/^:\([0-7][0-7]*\) [0-7][0-7]* \([0-9a-f][0-9a-f]*\) [0-9a-f][0-9a-f]* [A-Z] \(.*\)$/\1 \2 \3/' |
git update-index --add --remove --index-info || exit
git update-index --refresh
exit
fi
TOP=$(git-rev-parse --show-cdup)
if test ! -z "$TOP"
then
cd "$TOP"
fi
if test "$reset_type" = "--hard"
then
update=-u
fi
# Soft reset does not touch the index file nor the working tree
# at all, but requires them in a good order. Other resets reset
# the index file to the tree object we are switching to.
if test "$reset_type" = "--soft"
then
if test -f "$GIT_DIR/MERGE_HEAD" ||
test "" != "$(git-ls-files --unmerged)"
then
die "Cannot do a soft reset in the middle of a merge."
fi
else
git-read-tree --reset $update "$rev" || exit
fi
# Any resets update HEAD to the head being switched to.
if orig=$(git-rev-parse --verify HEAD 2>/dev/null)
then
echo "$orig" >"$GIT_DIR/ORIG_HEAD"
else
rm -f "$GIT_DIR/ORIG_HEAD"
fi
git-update-ref -m "$GIT_REFLOG_ACTION" HEAD "$rev"
update_ref_status=$?
case "$reset_type" in
--hard )
test $update_ref_status = 0 && {
echo -n "HEAD is now at "
GIT_PAGER= git log --max-count=1 --pretty=oneline \
--abbrev-commit HEAD
}
;;
--soft )
;; # Nothing else to do
--mixed )
# Report what has not been updated.
git-update-index --refresh
;;
esac
rm -f "$GIT_DIR/MERGE_HEAD" "$GIT_DIR/rr-cache/MERGE_RR" \
"$GIT_DIR/SQUASH_MSG" "$GIT_DIR/MERGE_MSG"
exit $update_ref_status
|
