3 # Copyright (c) 2005, 2006 Linus Torvalds and Junio C Hamano
5 USAGE='[--mixed | --soft | --hard] [<commit-ish>] [ [--] <paths>...]'
9 update= reset_type=--mixed
12 while case $# in 0) break ;; esac
15 --mixed | --soft | --hard)
25 rev=$(git-rev-parse --verify "$1") || exit
34 rev=$(git-rev-parse --verify $rev^0) || exit
36 # Skip -- in "git reset HEAD -- foo" and "git reset -- foo".
37 case "$1" in --) shift ;; esac
39 # git reset --mixed tree [--] paths... can be used to
40 # load chosen paths from the tree into the index without
41 # affecting the working tree nor HEAD.
44 test "$reset_type" == "--mixed" ||
45 die "Cannot do partial $reset_type reset."
46 git ls-tree -r --full-name $rev -- "$@" |
47 git update-index --add --index-info || exit
48 git update-index --refresh
52 TOP=$(git-rev-parse --show-cdup)
58 if test "$reset_type" = "--hard"
63 # Soft reset does not touch the index file nor the working tree
64 # at all, but requires them in a good order. Other resets reset
65 # the index file to the tree object we are switching to.
66 if test "$reset_type" = "--soft"
68 if test -f "$GIT_DIR/MERGE_HEAD" ||
69 test "" != "$(git-ls-files --unmerged)"
71 die "Cannot do a soft reset in the middle of a merge."
74 git-read-tree --reset $update "$rev" || exit
77 # Any resets update HEAD to the head being switched to.
78 if orig=$(git-rev-parse --verify HEAD 2>/dev/null)
80 echo "$orig" >"$GIT_DIR/ORIG_HEAD"
82 rm -f "$GIT_DIR/ORIG_HEAD"
84 git-update-ref -m "reset $reset_type $*" HEAD "$rev"
89 ;; # Nothing else to do
91 ;; # Nothing else to do
93 # Report what has not been updated.
94 git-update-index --refresh
98 rm -f "$GIT_DIR/MERGE_HEAD" "$GIT_DIR/rr-cache/MERGE_RR" \
99 "$GIT_DIR/SQUASH_MSG" "$GIT_DIR/MERGE_MSG"
101 exit $update_ref_status