Re: Possible regression in master? (submodules without a "master" branch)

From: W. Trevor King <wking@tremily.us>
Date: Mar 27, 2014, 15:57 UTC
Message-ID: <20140327155748.GN4008@odin.tremily.us>
In-Reply-To: <20140327155208.GM4008@odin.tremily.us>

On Thu, Mar 27, 2014 at 08:52:08AM -0700, W. Trevor King wrote:

> Working around that to default to the upstream submodule's HEAD is
> possible (you can just use --branch HEAD)

Actually, this is probably not a good idea. The initial submodule addition works:

  $ git submodule add -b HEAD /tmp/submod.git submod
  Cloning into 'submod'...
  done.

But subsequent log calls (from the superproject) do not:

  $ git log
  fatal: bad default revision 'HEAD'
  $ echo $?
  128

and status calls (from the superproject) also have trouble:

  $ git status
  warning: refname 'HEAD' is ambiguous
  warning: refname 'HEAD' is ambiguous.
  On branch master
  …

So it's better to just specify your preferred upstream branch directly (e.g. --branch next).

Cheers, Trevor

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