tj / tj/git-extras

git undo should work on first commit too

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#688 3 comments 0 reactions 0 assignees View on GitHub

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Dominant language
Shell
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Description

It works fine except on the first commit it gives this error:

> git undo
fatal: ambiguous argument 'HEAD^': unknown revision or path not in the working tree.
Use '--' to separate paths from revisions, like this:
'git <command> [<revision>...] -- [<file>...]'

I think it should do this for the first commit:

git update-ref -d HEAD

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start at the git undo command entry point and reproduce the failure in a repository whose only commit is HEAD. Compare the first-commit behavior with the linked Stack Overflow guidance; done means git undo succeeds without the HEAD^ error and produces the expected undo result.

Written by the indexing model from the issue text.

Assessment

Tech stack
git, shell
Domain
cli
Issue type
Bug
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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