[PATCH] buildman: Use git worktrees instead of git clones

[Simon Glass]

Hi Alper,

On Wed, 2 Sep 2020 at 16:21, Alper Nebi Yasak <alpernebiyasak at gmail.com> wrote:
>
> On 02/09/2020 20:07, Simon Glass wrote:
> > It looks like that version of git was not in Ubuntu 14.04 but appeared
> > in 16.04. I've just done some patches to make patman work in 14.04, so
> > I'd prefer to keep buildman working for that also.
>
> I'll keep that in mind. Looks like Ubuntu 14.04 has python v3.4 and git
> v1.9. I'm used to more recent versions so maybe I'll take the time to
> set up a VM to test things in.
>
> > So I think we should have an option to keep the old behaviour, or
> > perhaps detect when 'git worktree' is not available and fall back.
>
> I can check whether 'git worktree list' succeeds, it should have no
> effect on the repo but would give a 'not a git command' error if things
> wouldn't work; in which case buildman could fall back to cloning. I'll
> implement and send a v2 with something like that.

OK thanks. If it helps, on 14.04:

$ git worktree
git: 'worktree' is not a git command. See 'git --help'.
echo $?
1

Regards,
Simon