gh actions-importer keeps calling github.com instead of GHES instance

[tyrken]

We're trying to look at using the importer to convert some CircleCI config for repos on our GH Enterprise server, but despite using "https://git.mycorp.com/" as the GITHUB_INSTANCE_URL when running gh actions-importer configure or the --github-instance-url param with gh actions-importer audit circle-ci, it initially errored with:

Message: Unable to locate credentials for 'https://github.com'

When I provide said alternative credentials via a --credentials-file it uses them to access our github.com org & enumerate public & private repos there where we have a few - but they are old, not under CI control & not the ones we want!

Has anybody managed to use this with GHES?

[mh-isaac-riceweber]

Looks like the documentation for the environment variables is incorrect in the use of fallbacks. According to the doc, when you don't have CIRCLE_CI_SOURCE_GITHUB_INSTANCE_URL defined, it should fall back to use GITHUB_INSTANCE_URL. I found this to not be the case (consistent with your experience).

I was able to get an audit for an org in our self-hosted GHES instance by defining CIRCLE_CI_SOURCE_GITHUB_INSTANCE_URL in my .env.local file. To be safe, I also defined CIRCLE_CI_SOURCE_GITHUB_ACCESS_TOKEN to have the same value as GITHUB_ACCESS_TOKEN.

[mh-isaac-riceweber]

As an aside, I didn't actually find this from the documentation site. Rather I dug into the ruby code contained in the docker image to figure out where the github base url was coming from.