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How do I get the sha commit from a tag name using nodegit?

I have it:

nodegit.Reference
  .lookup(repo, `refs/tags/${tagName}`)
  .then(ref => nodegit.Commit.lookup(repo, ref.target()))
  .then(commit => ({
    tag: tagName,
    hash: commit.sha(),
    date: commit.date().toJSON(),
  }))

This code works if tagName is just an alias for the commit, but it gives me an error if the tag is a valid tag created with nodegit:

the requested type does not match the type in the ODB

When used, git show [tagname]

it shows this:

tag release_2017-07-21_1413
Tagger: xxx
Date:   Fri Jul 21 16:13:47 2017 +0200


commit c465e3323fc2c63fbeb91f9b9b43379d28f9b761 (tag: release_2017-07-21_1413, initialRelease)

So how do I get a link to that tag on the commit itself (c465e)?

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1 answer


Using peel(type)

works:



nodegit.Reference
  .lookup(repo, `refs/tags/${tagName}`)
  // This resolves the tag (annotated or not) to a commit ref
  .then(ref => ref.peel(nodegit.Object.TYPE.COMMIT))
  .then(ref => nodegit.Commit.lookup(repo, ref.id())) // ref.id() now
  .then(commit => ({
    tag: tagName,
    hash: commit.sha(),
    date: commit.date().toJSON(),
  }))
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