How to push a branch between a certain versions to another repo?

Question

I know I can graft one branch of one git project (says 'old') to another one (says 'new') by running this command:

 cd old # location of the 'old' repo
 git push git:git@github.com:dude/new.git a-branch 

However I do not want to push all the history of the branch to the new git project. I only want to include a subset of the commits in this branch.

How can I do it?

Answer 1

If you only want to push a subset of the history you must create a branch that contains only the subset of commits you want to push. So create a new branch based on your current

git checkout -b subsetOfCommits

than rebase in interactive mode.

git rebase -i firstCommitYouWantToChange

Use the rebase interactive editor and squash, fixup, move or delete the commits.

Finally push that branch to wherever you want.

Answer 2

You simply can specify the SHA1 you want to limit that branch to:

git push git:git@github.com:dude/new.git <SHA1>:abranch

All commits up to that <SHA1> will be pushed to a remote branch 'abranch' on new.git repo.
See for example:

• "Git push up to a certain commit "
• "git - pushing specific commit" (which also suggests git cherry-pick if you want only a range within the branch, instead of 'all commits up to and including <SHA1>)