The GH_DEBUG environment variable is a new gh-specific verbosity control.
For backwards-compatibility, DEBUG will still be respected if it has values
"1", "true", "yes", and "api", but any other values will be ignored.
Finally, support for "oauth" debug value has been dropped in favor of "api".
The "oauth" value only had limited, internal use.
Co-authored-by: Mislav Marohnić <mislav@github.com>
Whenever a SSO challenge gets issued by the server by means of a URL in
the `X-GitHub-SSO` response header, gh now additionally prints that URL
on the standard error stream.
This is achieved by installing a middleware to all HTTP requests and
storing the server challenge to a value accessible by `factory.SSOURL()`.
Such approach was made necessary mainly because of the
`shurcool-graphql` client which doesn't give access to response headers
when a GraphQL error case is encountered.