libssh2 error in `jj git push` to GitHub repository: can't authenticate on macOS

[oyarsa]

Description

This is the error:

> jj git push
Changes to push to origin:
  Add bookmark trunk to adf82c69e122
Error: authentication required but no callback set; class=Ssh (23); code=Auth (-16)
Hint: Jujutsu uses libssh2, which doesn't respect ~/.ssh/config. Does `ssh -F /dev/null` to the host work?

This is the output of the suggested command:

❯ ssh -F /dev/null git@github.com
PTY allocation request failed on channel 0
Hi oyarsa! You've successfully authenticated, but GitHub does not provide shell access.
Connection to github.com closed.

I've tried with versions from homebrew and cargo, including stable and main branch. The current version was installed like this:

❯ cargo install --git https://github.com/martinvonz/jj.git --features vendored-openssl --locked --bin jj jj-cli

Here's the remote:

❯ jj git remote list
origin git@github.com:oyarsa/jj-hello-world.git

My ~/.ssh/config file doesn't currently have any authentication-related settings, just some aliases. The key has been added to ssh-agent. Git still works.

I apologise if this is a common issue, but I couldn't find anything that seemed relevant to my use-case.

Expected Behavior

Push the current bookmark to git.

Actual Behavior

Error when pushing.

Specifications

• Platform: macOS, Apple Silicon
• Version:
  • OS: 14.4.1 (23E224)
  • jj: 0.23.0-5a793f61d68c6fa9f4be2c99f6e9d028781c6d6d

[fredDJSonos]

I do have exactly the same symptoms. ssh-agent running with just one key on MacOS 15.2 (Sequoia)