i would like to get off a branch (e.g. git switch HEAD -d), make a commit, and push it to a remote (e.g. github) without creating a branch there.

use case is that sometimes i want to ask someone "is this what you mean?" and link to a commit, but i don't want github to prompt me to create a PR, or for this garbage to show up everywhere you can list branches.

how do i push a git commit without creating a branch?

CodePudding user response：

AFAIK you have to create a ref to it. Fortunately you can probably get close enough for practical purposes:

1. Create a local branch with the commit.
2. Push it.
3. Immediately delete the remote branch.
4. Provide the full 40 char hash to the user to fetch: git fetch origin <full-hash>

Note the only reason you can even do the above steps is because garbage collection is not instantaneous and enables orphaned commits to stick around for a while. In the case of GitHub and many other tools, it may even stick around forever without further intervention. In this case the lifetime of the branch only needs to be for a few seconds just so you can push "something".

Side Note: you can skip step 1 if you wish and push directly to a branch name on the remote only:

# push commit <hash> to remote branch
git push origin <hash>:some-temp-branch-name
# delete remote branch
git push -d origin some-temp-branch-name