223 lines
9.7 KiB
Markdown
223 lines
9.7 KiB
Markdown
---
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type: howto
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description: "How to create Merge Requests in GitLab."
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disqus_identifier: 'https://docs.gitlab.com/ee/gitlab-basics/add-merge-request.html'
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---
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# How to create a merge request
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Before creating a merge request, read through an
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[introduction to Merge Requests](getting_started.md)
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to familiarize yourself with the concept, the terminology,
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and to learn what you can do with them.
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Every merge request starts by creating a branch. You can either
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do it locally through the command line, via a Git CLI application,
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or through the GitLab UI.
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This document describes the several ways to create a merge request.
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When you start a new merge request, regardless of the method,
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you'll be taken to the [**New Merge Request** page](#new-merge-request-page)
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to fill it with information about the merge request.
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If you push a new branch to GitLab, also regardless of the method,
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you can click the [**Create Merge Request**](#create-merge-request-button)
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button and start a merge request from there.
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## New Merge Request page
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On the **New Merge Request** page, start by filling in the title
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and description for the merge request. If there are already
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commits on the branch, the title will be prefilled with the first
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line of the first commit message, and the description will be
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prefilled with any additional lines in the commit message.
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The title is the only field that is mandatory in all cases.
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From there, you can fill it with information (title, description,
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assignee(s), milestone, labels, approvers) and click **Create Merge Request**.
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From that initial screen, you can also see all the commits,
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pipelines, and file changes pushed to your branch before submitting
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the merge request.
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![New Merge Request page](img/new_merge_request_page_v12_6.png)
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TIP: **Tip:**
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You can push one or more times to your branch in GitLab before
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creating the merge request.
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## Create Merge Request button
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Once you have pushed a new branch to GitLab, visit your repository
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in GitLab and to see a call-to-action at the top of your screen
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from which you can click the button **Create Merge Request**.
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![Create Merge Request button](img/create_merge_request_button_v12_6.png)
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You can also see the **Create merge request** button in the top-right of the:
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- **Project** page.
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- **Repository > Files** page.
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- **Merge Requests** page.
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In this case, GitLab will use the most recent branch you pushed
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changes to as the source branch, and the default branch in the current
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project as the target.
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## New merge request by adding, editing, and uploading a file
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When you choose to edit, add, or upload a file through the GitLab UI,
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at the end of the file you'll see the option to add the **Commit message**,
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to select the **Target branch** of that commit, and the checkbox to
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**Start new a merge request with these changes**.
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Similarly, if you change files through the Web IDE, when you navigate to **Commit** on the left-hand sidebar, you'll see these same options.
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Once you have added, edited, or uploaded the file:
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1. Describe your changes in the commit message.
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1. Select an existing branch to add your commit into, or, if you'd like to create a new branch, type the new branch name (without spaces, capital letters, or special chars).
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1. Keep the checkbox checked to start a new merge request straightaway, or, uncheck it to add more changes to that branch before starting the merge request.
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1. Click **Commit changes**.
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If you chose to start a merge request, you'll be taken to the
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[**New Merge Request** page](#new-merge-request-page), from
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which you can fill it in with information and submit the merge request.
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The merge request will target the default branch of the repository.
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If you want to change it, you can do it later by editing the merge request.
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## New merge request from a new branch created through the UI
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To quickly start working on files through the GitLab UI,
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navigate to your project's **Repository > Branches** and click
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**New branch**. A new branch will be created and you can start
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editing files.
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Once committed and pushed, you can click on the [**Create Merge Request**](#create-merge-request-button)
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button to open the [**New Merge Request** page](#new-merge-request-page).
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A new merge request will be started using the current branch as the source,
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and the default branch in the current project as the target.
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## New merge request from you local environment
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Assuming you have your repository cloned into your computer and you'd
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like to start working on changes to files, start by creating and
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checking out a new branch:
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```shell
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git checkout -b my-new-branch
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```
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Work on your file changes, stage, and commit them:
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```shell
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git add .
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git commit -m "My commit message"
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```
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Once you're done, [push your branch to GitLab](../../../gitlab-basics/start-using-git.md#send-changes-to-gitlabcom):
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```shell
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git push origin my-new-branch
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```
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In the output, GitLab will prompt you with a direct link for creating
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a merge request:
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```shell
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...
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remote: To create a merge request for docs-new-merge-request, visit:
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remote: https://gitlab-instance.com/my-group/my-project/merge_requests/new?merge_request%5Bsource_branch%5D=my-new-branch
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```
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Copy that link and paste it in your browser, and the [**New Merge Request page**](#new-merge-request-page)
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will be displayed.
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There is also a number of [flags you can add to commands when pushing through the command line](../push_options.md) to reduce the need for editing merge requests manually through the UI.
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If you didn't push your branch to GitLab through the command line
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(for example, you used a Git CLI application to push your changes),
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you can create a merge request through the GitLab UI by clicking
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the [**Create Merge Request**](#create-merge-request-button) button.
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## New merge request from an issue
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You can also [create a new merge request directly from an issue](../repository/web_editor.md#create-a-new-branch-from-an-issue).
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## New merge request from the Merge Requests page
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You can start creating a new merge request by clicking the
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**New merge request** button on the **Merge Requests** page in a project.
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Then choose the source project and branch that contain your changes,
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and the target project and branch where you want to merge the changes into.
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Click on **Compare branches and continue** to go to the
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[**New Merge Request** page](#new-merge-request-page) and fill in the details.
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## New merge request from a fork
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After forking a project and applying your local changes, complete the following steps to
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create a merge request from your fork to contribute back to the main project:
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1. Go to **Projects > Your Projects** and select your fork of the repository.
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1. In the left menu, go to **Merge Requests**, and click **New Merge Request**.
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1. In the **Source branch** drop-down list box, select your branch in your forked repository as the source branch.
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1. In the **Target branch** drop-down list box, select the branch from the upstream repository as the target branch.
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1. After entering the credentials, click **Compare branches and continue** to compare your local changes to the upstream repository.
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1. Assign a user to review your changes, and click **Submit merge request**.
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When the changes are merged, your changes are added to the upstream repository and
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the branch as per specification. After your work is merged, if you don't intend to
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make any other contributions to the upstream project, you can unlink your
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fork from its upstream project in the **Settings > Advanced Settings** section by
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[removing the forking relationship](../settings/index.md#removing-a-fork-relationship).
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For further details, [see the forking workflow documentation](../repository/forking_workflow.md).
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## New merge request by email **(CORE ONLY)**
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_This feature needs [incoming email](../../../administration/incoming_email.md)
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to be configured by a GitLab administrator to be available._ It isn't
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available in GitLab.com.
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You can create a new merge request by sending an email to a user-specific email
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address. The address can be obtained on the merge requests page by clicking on
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a **Email a new merge request to this project** button. The subject will be
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used as the source branch name for the new merge request and the target branch
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will be the default branch for the project. The message body (if not empty)
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will be used as the merge request description. You need
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["Reply by email"](../../../administration/reply_by_email.md) enabled to use
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this feature. If it's not enabled to your instance, you may ask your GitLab
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administrator to do so.
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This is a private email address, generated just for you. **Keep it to yourself**
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as anyone who has it can create issues or merge requests as if they were you.
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You can add this address to your contact list for easy access.
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![Create new merge requests by email](img/create_from_email.png)
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_In GitLab 11.7, we updated the format of the generated email address.
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However the older format is still supported, allowing existing aliases
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or contacts to continue working._
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### Adding patches when creating a merge request via e-mail
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> [Introduced](https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/22723) in GitLab 11.5.
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You can add commits to the merge request being created by adding
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patches as attachments to the email. All attachments with a filename
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ending in `.patch` will be considered patches and they will be processed
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ordered by name.
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The combined size of the patches can be 2MB.
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If the source branch from the subject does not exist, it will be
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created from the repository's HEAD or the specified target branch to
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apply the patches. The target branch can be specified using the
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[`/target_branch` quick action](../quick_actions.md). If the source
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branch already exists, the patches will be applied on top of it.
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## Reviewing and managing Merge Requests
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Once you have submitted a merge request, it can be [reviewed and managed](reviewing_and_managing_merge_requests.md) through GitLab.
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