sign tags

[extrawurst]

currently signing does not apply to tags.

If you have a GPG private key set up, you can now use it to sign new tags. All you have to do is use -s instead of -a:

$ git tag -s v1.5 -m 'my signed 1.5 tag'

You need a passphrase to unlock the secret key for
user: "Ben Straub <ben@straub.cc>"
2048-bit RSA key, ID 800430EB, created 2014-05-04

see https://git-scm.com/book/en/v2/Git-Tools-Signing-Your-Work

It looks like signing just appends a signature to the annotated tag. we just need to figure out what exactly is expected to be in the buffer that we need to sign.

more links:

• Signing tags | Github
• git tag command reference

[hendrikmaus]

Another thread I opened to gather more info: rust-lang/git2-rs#1039