How do I run git rebase –interactive in non-interactive manner?

Issue

Is it possible to do following?

  1. Make git rebase --interactive to just output standard boilerplate to a file, instead to outputting to a file and opening it in editor.
  2. Let the user edit the file.
  3. Let user re-run git rebase with the name of edited file.
  4. Go on with the usual rebase process.

Usecase: scripted rebasing of course. See how to re-order commits in Git non-interactively for example.

Solution

After some thinking and research, the answer turned out to be trivial: git rebase -i takes the editor name from the well-known EDITOR/VISUAL environment variables, so overriding that to point to a non-interactive script does the job.

However, EDITOR/VISUAL applies indifferently to the list of commits, commit messages when rewording and anything else. So, since http://git.kernel.org/?p=git/git.git;a=commit;h=821881d88d3012a64a52ece9a8c2571ca00c35cd , there’s a special environment variable GIT_SEQUENCE_EDITOR which applies only to the commit list.

So, the recipe to re-order or flatten commits is:

Run: GIT_SEQUENCE_EDITOR=<script> git rebase -i <params>.
Your <script> should accept a single argument: the path to the file containing the standard rebase commit list. It should rewrite it in-place and exit. Usual rebase processing happens after that.

Answered By – pfalcon

This Answer collected from stackoverflow, is licensed under cc by-sa 2.5 , cc by-sa 3.0 and cc by-sa 4.0

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