CODEWITHSUNDEEP
githubgithub-api
hikaru
hikaru

Reputation: 2564

Given a commit sha, get ref (if any)

I have a pretty good understanding of how git (and github) works, but one thing frustratingly eludes me.

When I see a 'push' webhook from github, it'll contain a lot of nice info, incluing an array of commits, and the head commit, etc. the webhook payload includes the 'ref' of the head commit.

However, given any specific commit, I cannot seem to find any way to query github via the API to see if that commit has any ref(s).

Use case: I know a SHA. I'm curious if it's the actual commit that a branch ref points to. I understand that not all commits have a ref, but I need to test a single commit regardless.

This simply has to be possible, but I'm so wrapped around the axle I'm not seeing it.

Ultimate use case: it seems consistent that a merge has more than one 'parent', and those parents represent the 'to' and 'from' branches involved in the merge. Given a merge push, I must discover the source and target branches. Obviously I cannot use the 'message' as this, while the default is useful, is overridable and therefore untrustworthy.

Dead in the water if I can't figure this out.

Upvotes: 0

Views: 228

Answers (1)

hikaru
hikaru

Reputation: 2564

A trip to Subway proved moderately effective. Hoping there's a more efficient way, but I can query all the refs for a given repo, then map the sha in question to that array looking for a match.

Any suggestions for a more efficient method of matching than pulling down hundreds of refs just to attempt to match one are appreciated.

Upvotes: 1

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