Git – finding a filename from a SHA1

by

There’s no such direct mapping in git as the name of the file is part of the tree object that contains the file, not of the blob object that is the file’s contents.

It’s not a usual operation to want to retrieve a file name from a SHA1 hash so perhaps you could expand on a real world use case for it?

If you’re looking at current files (i.e. the HEAD commit) you can try the following.

git ls-tree -r HEAD | grep <SHA1>

If you want to find the contents in previous commits you’ll need to do something more like this.

git rev-list <commit-list> | \
xargs -n1 -iX sh -c "git ls-tree -r X | grep <SHA1> && echo X"

More Related Contents:

  1. How does the newly found SHA-1 collision affect Git?
  2. How to assign a Git SHA1’s to a file without Git?
  3. How does Git compute file hashes?
  4. Hash collision in git
  5. How can I pass git SHA1 to compiler as definition using cmake?
  6. Git – finding the SHA1 of an individual file in the index
  7. A Regex to match a SHA1
  8. Error when pushing amended commit to remote [duplicate]
  9. Can git automatically switch between spaces and tabs?
  10. gitosis vs gitolite? [closed]
  11. How to do a GitHub pull request
  12. How to cherry-pick multiple commits
  13. Handling file renames in Git
  14. fetch in git doesn’t get all branches
  15. Git pre-commit hook : changed/added files
  16. Should “node_modules” folder be included in the git repository
  17. Unlink of file Failed. Should I try again?
  18. Merging without whitespace conflicts
  19. Is there a way to lock individual files or directories on fork when using git?
  20. ‘Go Get’ Private Repo from Bitbucket
  21. How to fix git error: RPC failed; curl 56 GnuTLS
  22. How to remove unused objects from a git repository?
  23. git reset vs git reset HEAD
  24. Error “Updates were rejected because the remote contains work that you do not have locally”
  25. main branch and ‘origin/main’ have diverged, how to ‘undiverge’ branches’?
  26. How to list all tags pointing to a specific commit in git
  27. How does git log –since count?
  28. Using IntelliJ to amend git commit message
  29. when you have secret key in your project, how can pushing to GitHub be possible?
  30. Other consequences of `git push –force`?

Leave a Comment