Re: The meaning of the '+' before the submodule hash.

From: Taylor Blau <me@ttaylorr.com>
Date: Apr 21, 2021, 14:25 UTC
Message-ID: <YIA10O/BVrP3z/LK@nand.local>
In-Reply-To: <CAGP6PO+6MA9J1LRgGn4rcz8DBcW-hht92p-ahFaM9g6tcNFh-Q@mail.gmail.com>

On Wed, Apr 21, 2021 at 10:19:25PM +0800, Hongyi Zhao wrote:

> What's the meaning of the '+' sign at the beginning? Why do some
> submodules have this symbol, but some submodules don't?

There are three symbols, 'U', '-', and '+'. From the documentation [1], they mean:

    Each SHA-1 will possibly be prefixed with `-` if the submodule is not
    initialized, `+` if the currently checked out submodule commit does not
    match the SHA-1 found in the index of the containing repository and `U`
    if the submodule has merge conflicts.

[1]: https://git-scm.com/docs/git-submodule#Documentation/git-submodule.txt-status--cached--recursive--ltpathgt82308203

Thanks, Taylor