USAGE='[-f] [-b <new_branch>] [-m] [<branch>] [<paths>...]'
SUBDIRECTORY_OK=Sometimes
. git-sh-setup
+require_work_tree
old_name=HEAD
old=$(git-rev-parse --verify $old_name 2>/dev/null)
# We are switching branches and checking out trees, so
# we *NEED* to be at the toplevel.
-cdup=$(git-rev-parse --show-cdup)
-if test ! -z "$cdup"
-then
- cd "$cdup"
-fi
+cd_to_toplevel
[ -z "$new" ] && new=$old && new_name="$old_name"
if test -n "$oldbranch"
then
detach_warn="warning: you are not on ANY branch anymore.
-If you meant to create a new branch from the commit, you need -b to
-associate a new branch with the wanted checkout. Example:
- git checkout -b <new_branch_name> $arg"
+If you meant to create a new branch from this checkout, you may still do
+so (now or later) by using -b with the checkout command again. Example:
+ git checkout -b <new_branch_name>"
fi
elif test -z "$oldbranch" && test -n "$branch"
then
# Match the index to the working tree, and do a three-way.
git diff-files --name-only | git update-index --remove --stdin &&
work=`git write-tree` &&
- git read-tree --reset -u $new &&
- git read-tree -m -u --aggressive --exclude-per-directory=.gitignore $old $new $work ||
- exit
+ git read-tree --reset -u $new || exit
- if result=`git write-tree 2>/dev/null`
- then
- echo >&2 "Trivially automerged."
- else
- git merge-index -o git-merge-one-file -a
- fi
+ eval GITHEAD_$new=${new_name:-${branch:-$new}} &&
+ eval GITHEAD_$work=local &&
+ export GITHEAD_$new GITHEAD_$work &&
+ git merge-recursive $old -- $new $work
# Do not register the cleanly merged paths in the index yet.
# this is not a real merge before committing, but just carrying