[PATCH v5 0/1] worktree add: sanitize worktree names

["Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>]

v5 is basically Jeff's version from one of the replies in v4, where
check_refname_component is enhanced to optionally sanitize.

I was reluctant to go this way because it makes check_refname_component
more complex (turns out still manageable) and burns worktree rules in
it. But there may never be the second sanitization user, we deal with
it when it comes.

As said, refs.c is pretty much Jeff's except two major changes:

 - handle foo.lock.lock correctly by stripping .lock repeatedly

 - sanitize refname _components_ instead of full refs. I could construct
   worktrees/<name> and pass to Jeff's sanitize_refname. But then I need
   to strip worktrees/ after that.

I took credits so that bugs come to me first (then I'll blame him
anyway while doing some evil laughs)

Nguyễn Thái Ngọc Duy (1):
  worktree add: sanitize worktree names

 builtin/worktree.c      |  10 +++-
 refs.c                  | 103 ++++++++++++++++++++++++++++++++--------
 refs.h                  |   6 +++
 t/t2400-worktree-add.sh |   5 ++
 4 files changed, 104 insertions(+), 20 deletions(-)

-- 
2.21.0.rc1.337.gdf7f8d0522