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More specifically, how do I tell if the origin of the repo on disk is a fork of some repo? I am thinking that it should be some API call, but I am not sure. Can I rely on "remote.upstream.url"?

Vadim Kotov
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mpersico
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2 Answers2

4

You could use the GitHub API for Repositories to get a specific repo

GET /repos/:owner/:repo

(you can use a curl call from command line)

The JSON answer will include a "fork" field: value true or false.

Another approach, using the GitHub CLI gh repo view command:

gh repo view VonC/git-cred --json isFork
{
  "isFork": false
}
VonC
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    AHA! I can ask MY repo what is it is a fork of. So :owner/:repo comes from `git config --get remote.origin.url`, looking for `"fork": true` and `"full_name:"` in `"parent"`. Thank you. – mpersico Oct 29 '19 at 21:01
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    @mpersico Exactly. Or, as I mention in https://stackoverflow.com/a/32991784/6309, `git remote get-url origin`. – VonC Oct 30 '19 at 07:20
  • AHA2! I’ll be updating with this gem today. I try to read the release notes every time my machine gets a new git package but sometimes I miss it. – mpersico Oct 30 '19 at 11:56
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Yes, do this:

(meta_learning) brandomiranda~/proverbot9001 ❯ git config --get remote.origin.url
git@github.com:brando90/proverbot9001.git
Charlie Parker
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    This will tell me if the local repo is a clone. It does not tell me if the remote.origin.url is itself a fork. – mpersico Dec 08 '22 at 17:13