Creating merge requests (FREE ALL)

GitLab provides many different ways to create a merge request.

NOTE: GitLab enforces branch naming rules to prevent problems, and provides branch naming patterns to streamline merge request creation.

From the merge request list

You can create a merge request from the list of merge requests.

On the left sidebar, at the top, select Search GitLab ({search}) to find your project.
Select Code > Merge requests.
In the upper-right corner, select New merge request.
Select a source and target branch and then Compare branches and continue.
Fill out the fields and select Create merge request.

NOTE: Merge requests are designed around a one-to-one (1:1) branch relationship. Only one open merge request may be associated with a given target branch at a time.

From an issue

The Create merge request button changed to open the merge request creation form in GitLab 14.8.

If your development workflow requires an issue for every merge request, you can create a branch directly from the issue to speed the process up. The new branch, and later its merge request, are marked as related to this issue. After merging the merge request, the issue is closed automatically, unless automatic issue closing is disabled. You can see a Create merge request dropdown list below the issue description.

NOTE: In GitLab 14.8 and later, selecting Create merge request redirects to the merge request creation form instead of immediately creating the merge request.

Create merge request doesn't display if:

A branch with the same name already exists.
A merge request already exists for this branch.
Your project has an active fork relationship.
Your project is private and the issue is confidential.

To make this button appear, one possible workaround is to remove your project's fork relationship. After removal, the fork relationship cannot be restored. This project can no longer be able to receive or send merge requests to the source project, or other forks.

The dropdown list contains the options Create merge request and branch and Create branch.

After selecting one of these options, a new branch or branch and merge request is created based on your project's default branch. The branch name is based on your project's branch name template, but this value can be changed.

When you select Create branch in an empty repository project, GitLab performs these actions:

Creates a default branch.
Commits a blank README.md file to it.
Creates and redirects you to a new branch based on the issue title.
If your project is configured with a deployment service like Kubernetes, GitLab prompts you to set up auto deploy by helping you create a .gitlab-ci.yml file.

After the branch is created, you can edit files in the repository to fix the issue. When a merge request is created based on the newly-created branch, the description field displays the issue closing pattern Closes #ID, where ID is the ID of the issue. This closes the issue when the merge request is merged.

When you add, edit, or upload a file

You can create a merge request when you add, edit, or upload a file to a repository.

Add, edit, or upload a file to the repository.
In the Commit message, enter a reason for the commit.
Select the Target branch or create a new branch by typing the name (without spaces).
Select the Start a new merge request with these changes checkbox or toggle. This checkbox or toggle is visible only if the target is not the same as the source branch, or if the source branch is protected.
Select Commit changes.

When you create a branch

You can create a merge request when you create a branch.

On the left sidebar, at the top, select Search GitLab ({search}) to find your project.
Select Code > Branches.
Type a branch name and select New branch.
Above the file list, on the right side, select Create merge request. A merge request is created. The default branch is the target.
Fill out the fields and select Create merge request.

When you use Git commands locally

You can create a merge request by running Git commands on your local machine.

Create a branch:
```
git checkout -b my-new-branch
```
Create, edit, or delete files. The stage and commit them:
```
git add .
git commit -m "My commit message"
```

Push your branch to GitLab:

git push origin my-new-branch

GitLab prompts you with a direct link for creating a merge request:

...
remote: To create a merge request for my-new-branch, visit:
remote:   https://gitlab.example.com/my-group/my-project/merge_requests/new?merge_request%5Bsource_branch%5D=my-new-branch

Copy the link and paste it in your browser.

You can add other flags to commands when pushing through the command line to reduce the need for editing merge requests manually through the UI.

When you work in a fork

You can create a merge request from your fork to contribute back to the main project.

On the left sidebar, at the top, select Search GitLab ({search}) to find your project.
Select your fork of the repository.
On the left sidebar, select Code > Merge requests, and select New merge request.
In the Source branch dropdown list box, select the branch in your forked repository as the source branch.
In the Target branch dropdown list box, select the branch from the upstream repository as the target branch. You can set a default target project to change the default target branch (which can be useful if you are working in a forked project).
Select Compare branches and continue.
Select Create merge request.

After your work is merged, if you don't intend to make any other contributions to the upstream project, you can unlink your fork from its upstream project.

For more information, see the forking workflow documentation.

By sending an email

You can create a merge request by sending an email message to GitLab. The merge request target branch is the project's default branch.

Prerequisites:

A GitLab administrator must configure incoming email.
A GitLab administrator must configure Reply by email.

To create a merge request by sending an email:

On the left sidebar, at the top, select Search GitLab ({search}) to find your project.
Select Code > Merge requests.
In the upper-right corner, select Email a new merge request to this project. An email address is displayed. Copy this address. Ensure you keep this address private.
Open an email and compose a message with the following information:
- The To line is the email address you copied.
- The subject line is the source branch name.
- The message body is the merge request description.
Send the email message.

A merge request is created.

Add attachments when creating a merge request by email

You can add commits to a merge request by adding patches as attachments to the email. All attachments with a filename ending in .patch are considered patches and are processed ordered by name.

The combined size of the patches can be 2 MB.

If the source branch from the subject does not exist, it is created from the repository's HEAD or the specified target branch. You can specify the target branch by using the /target_branch quick action. If the source branch already exists, the patches are applied on top of it.

Set the default target project

Introduced in GitLab 13.11.

Merge requests have a source and a target project that are the same, unless forking is involved. Creating a fork of the project can cause either of these scenarios when you create a new merge request:

You target an upstream project (the project you forked, and the default option).
You target your own fork.

To have merge requests from a fork by default target your own fork (instead of the upstream project), you can change the default.

On the left sidebar, at the top, select Search GitLab ({search}) to find your project.
Select Settings > Merge requests.
In the Target project section, select the option you want to use for your default target project.
Select Save changes.