Re: How to Verify the Git Credentials supplied by the User

Deepak Patankar [off-list ref] writes:

I can use the "ls-remote", "push --dry-run" command you suggested, but
I have a use case which I don't know how to solve.
The above commands require a repository. In our application, the user
can give the following details

Git Details:
   Account URL:  https://github.com/OpenPrinting
   UserName: deepakpatankar
   password: ***********

In this case, we don't know the repo name. At this step, I just know
the account and the credentials of the user, later on
the user will provide me with the repo name to which he wants to sync his file.

Since I don't know the repository, I cannot do "git fetch" or "git
push --dry-run". Can I check this credentials with some
logic or git commands?

You'd have to go outside Git, as our transport layer is only about
talking with existing repositories.  You cannot even create a new 
repository using Git native methods.

You may need to find a method that works with GitHub account (note
that I am not even using the word repository here, instead saying
"account") and such a method would likely have to involve GitHub
specific API, but it probably would not work with other hosting
providers.

I also would imagine that even at GitHub, one may want to use
different authentication info depending on which repository one
accesses, so the "there is a single User with a password at this
hosting site" data model might turn out to be insufficient, but
that is outside the scope of Git proper.