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# how-do-i

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12/07/2023, 8:38 PM

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Gustavo Nunes Goretkin

12/07/2023, 8:39 PM

That might not be the right

git

command, also...

Jacob Gold

12/07/2023, 8:48 PM

GH doesnt garbage collect the shas, thats how we're able to show the diff. i think there is a different way to call fetch for raw shas, as it looks here like git thinks you're looking for a ref

Nick S

12/07/2023, 8:49 PM

I've done this before in the past

Copy code

gh api /repos/OWNER/REPO/git/refs -f ref='refs/heads/<new_branch_name>' -f sha='commit-sha-to-restore'

It will create a new branch with that sha

Nick S

12/07/2023, 8:50 PM

from, https://docs.github.com/en/rest/git/refs?apiVersion=2022-11-28#create-a-reference

Gustavo Nunes Goretkin

12/07/2023, 9:31 PM

Thanks for the help. The

gh api

command succeeded (and if I run it again it complains

"message": "Reference already exists",

) but I don't understand how to grab the result. I do not see a new branch on the repository.

Nick S

12/07/2023, 9:36 PM

you don't happen to have a fetch filter do you? you should also be able to see the branch on the github web interface

Nick S

12/07/2023, 9:39 PM

i guess i should say you need to do a

git fetch

to see the branch locally first

Gustavo Nunes Goretkin

12/07/2023, 9:41 PM

I don't see the branch on the Github UI 😐

Gustavo Nunes Goretkin

12/07/2023, 9:43 PM

Copy code

$ gh api /repos/ORG/REPO/git/refs -f ref='refs/head/gng-20231207' -f sha=09491a0921749a8674112a55238210ea6e7ff6cd
{
  "ref": "refs/head/gng-20231207",
  "node_id": "REF_blahblahblah",
  "url": "<https://api.github.com/repos/ORG/REPO/git/refs/head/gng-20231207>",
  "object": {
    "sha": "09491a0921749a8674112a55238210ea6e7ff6cd",
    "type": "commit",
    "url": "<https://api.github.com/repos/ORG/REPO/git/commits/09491a0921749a8674112a55238210ea6e7ff6cd>"
  }

Nick S

12/07/2023, 9:57 PM

not sure it works on my end 😞

Copy code

➜  git:(main) gh api /repos/<OWNER>/<REPO>/git/refs -f ref='refs/heads/gng-20231207' -f sha='814a4f9fe04460b64613452b0e111eecfbc6c645'
➜  git:(main) git fetch
remote: Enumerating objects: 1, done.
remote: Total 1 (delta 0), reused 0 (delta 0), pack-reused 1
Unpacking objects: 100% (1/1), 564 bytes | 564.00 KiB/s, done.
From <http://github.com:<OWNER>/<REPO|github.com:<OWNER>/<REPO>>
 * [new branch]      gng-20231207 -> origin/gng-20231207

Nick S

12/07/2023, 9:58 PM

oh you have

refs/head

and I have

refs/heads

Gustavo Nunes Goretkin

12/07/2023, 10:14 PM

I knew I needed to be copy-pasting. Thanks for the catch

Nick S

12/07/2023, 10:16 PM

you may be able to clean up the

refs/head

reference with, https://docs.github.com/en/rest/git/refs?apiVersion=2022-11-28#delete-a-reference but they may lock it down

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