Introduction

GitLab allows project maintainers to control the default behavior of commit squashing during merge requests. These settings are found in your project's Settings > Merge requests and under the "Squash commits when merging" section. The available options are:

• Do not allow:

  Squashing is entirely disabled, and the "Squash commits" checkbox will not appear in merge requests.

• Allow:

  Squashing is off by default, but users can choose to enable it by checking the "Squash commits" box.

• Encourage:

  Squashing is on by default, but users can choose to disable it.

• Require:

  Squashing is always performed, and the "Squash commits" checkbox will be selected and unchangeable.

Troubleshooting a Disabled Squash Option:

• Check Project Settings:

  • Navigate to your project in GitLab.
  • Go to Settings > Merge requests.
  • Locate the "Squash commits when merging" section.
  • Verify the selected option. If it's set to "Do not allow" or "Require," this explains why the option is disabled or always on.

• Request Project Maintainer to Change Settings (if necessary):

  • If you require the ability to squash commits and the project settings are preventing it, you will need to request a project maintainer or owner to adjust the "Squash commits when merging" setting to "Allow" or "Encourage."

Conclusion

By understanding and adjusting these project-level settings, you can control the availability and default behavior of squash commits in your GitLab merge requests.