#!/bin/sh
-
-USAGE='[--mixed | --soft | --hard] [<commit-ish>]'
+#
+# 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 $*"
+require_work_tree
-tmp=${GIT_DIR}/reset.$$
-trap 'rm -f $tmp-*' 0 1 2 3 15
+update= reset_type=--mixed
+unset rev
-update=
-reset_type=--mixed
-case "$1" in
---mixed | --soft | --hard)
- reset_type="$1"
+while test $# != 0
+do
+ case "$1" in
+ --mixed | --soft | --hard)
+ reset_type="$1"
+ ;;
+ --)
+ break
+ ;;
+ -*)
+ usage
+ ;;
+ *)
+ rev=$(git rev-parse --verify "$1") || exit
+ shift
+ break
+ ;;
+ esac
shift
- ;;
--*)
- usage ;;
-esac
+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] \(.*\)$/\1 \2 \3/' |
+ git update-index --add --remove --index-info || exit
+ git update-index --refresh
+ exit
+fi
-rev=$(git-rev-parse --verify --default HEAD "$@") || exit
-rev=$(git-rev-parse --verify $rev^0) || exit
+cd_to_toplevel
-# We need to remember the set of paths that _could_ be left
-# behind before a hard reset, so that we can remove them.
if test "$reset_type" = "--hard"
then
update=-u
if test "$reset_type" = "--soft"
then
if test -f "$GIT_DIR/MERGE_HEAD" ||
- test "" != "$(git-ls-files --unmerged)"
+ test "" != "$(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
+ git read-tree -v --reset $update "$rev" || exit
fi
# Any resets update HEAD to the head being switched to.
-if orig=$(git-rev-parse --verify HEAD 2>/dev/null)
+if orig=$(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 "reset $reset_type $@" HEAD "$rev"
+git update-ref -m "$GIT_REFLOG_ACTION" HEAD "$rev"
+update_ref_status=$?
case "$reset_type" in
--hard )
- ;; # Nothing else to do
+ test $update_ref_status = 0 && {
+ printf "HEAD is now at "
+ GIT_PAGER= git log --max-count=1 --pretty=oneline \
+ --abbrev-commit HEAD
+ }
+ ;;
--soft )
;; # Nothing else to do
--mixed )
# Report what has not been updated.
- git-update-index --refresh
+ git update-index --refresh
;;
esac
-rm -f "$GIT_DIR/MERGE_HEAD" "$GIT_DIR/rr-cache/MERGE_RR"
+rm -f "$GIT_DIR/MERGE_HEAD" "$GIT_DIR/rr-cache/MERGE_RR" \
+ "$GIT_DIR/SQUASH_MSG" "$GIT_DIR/MERGE_MSG"
+
+exit $update_ref_status