Re: I lost my commit signature

From: Jeff King <peff@peff.net>
Date: Jun 15, 2016, 04:34 UTC
Message-ID: <20160615043450.GA3975@sigill.intra.peff.net>
In-Reply-To: <CAGrdoOoxphU0tRjV22yduXrhmOSyCc_zVnhuO9fFA6UPRd9WiA@mail.gmail.com>

On Wed, Jun 15, 2016 at 12:27:15PM +0800, ZhenTian wrote:

Show 16 quoted lines

> I got two more lines from gpg -v during commit with -S:
> ```
> gpg: writing to stdout
> gpg: RSA/SHA1 signature from: "2EF2AD6E Tian Zhen <tianzhen@honovation.com>"
> ```
> 
> after I commit, I push it to remote, but someone had pushed before to
> master branch, so I pull on master branch(`git pull --rebase`), then I
> check my commit via `git log --show-signature`, there is no signature
> in it, so I commit it with --ament and -S again, the signature is come
> back.
> 
> I haven't check signature before push, because I have checked four
> commits before, every commit is fine.
> 
> I don't know whether the `git pull` influenced signature or not.

Ah, so the problem is probably that you had a signature _initially_, but that it did not survive the rebase. Which makes sense, as rebase would need to re-sign. It does not by default, but you can tell it to do so with "-S". Or you can set `commit.gpgsign`, which should sign in both cases.

-Peff