Hi! I was starting to integrate the plugin in our repository but hit a wall pretty fast regarding authentication.

Using

authentication {
    sshWithPublicKey()
}

Was resulting in

Caused by: org.gradle.api.GradleException: Unable to clone repository contents: git@github.com:[team]/[repo.git]: Auth fail

This was pretty weird as I'm able to run git clone git@github.com:[team]/[repo.git] without any issue or having to type any passphrase. I even removed the passphrase from the SSH key but no dice.

Drilling a bit into it, I found that this particular error means that JGit can't load an SSH key. Then I found this: gradle/gradle#8245

Gradle seems to have the same issue with source dependencies. More specifically, there's one comment that seems to fix the Auth fail error: gradle/gradle#8245 (comment)

But then, another error appears:

Caused by: org.gradle.api.GradleException: Unable to clone repository contents: git@github.com:[team]/[repo.git]: invalid privatekey: [B@36ad118

It seems the current JGit version does not support the newer SSH key formats. We're in this weird situation where the newer OpenSSH versions, by default, generate a key that JGit doesn't support.

There's already a drop in replacement for JGit, which supports these new formats: https://github.com/mwiede/jsch
Example PR on Gradle repo, switching to this new version: gradle/gradle#20387

Is it possible to migrate to this new version on the plugin? Thank you!