86 lines
3.2 KiB
Markdown
86 lines
3.2 KiB
Markdown
---
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type: how-tos
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---
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# Develop on a feature branch
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GitLab values encourage the use of [Minimal Viable Change (MVC)](https://about.gitlab.com/handbook/values/#minimal-viable-change-mvc).
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However, viable changes are not always small. In such cases, it can help to set up a dedicated feature branch.
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People can contribute MRs to that feature branch, without affecting the functionality of the default (usually `master`) branch.
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Once work on the development branch is complete, then the feature branch can be finally merged into the default branch.
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GitLab frequently implements this process whenever there is an MVC that requires multiple MRs.
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## Use case: GitLab's release posts
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This section describes the use case with GitLab [release posts](https://about.gitlab.com/handbook/marketing/blog/release-posts/).
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Dozens of GitLab team members contribute to each monthly release post.
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In such cases, it may be more efficient to submit an MR on the release post feature branch instead of master.
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In this case, the feature branch would be `release-X-Y`. Assuming the `release-X-Y` branch already exists, you can set up an MR against that branch, with the following steps:
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1. Create a new branch (`test-branch`) against the feature branch (`release-X-Y`):
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```shell
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git checkout -b test-branch release-X-Y
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```
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You should now be on a branch named `test-branch`.
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1. Make desired changes on the `test-branch`.
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1. Add your changes, commit, and push to the `test-branch`:
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```shell
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git add .
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```
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1. Commit your changes:
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```shell
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git commit -m "Some good reason"
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```
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1. Push your changes to the repository:
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```shell
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git push --set-upstream origin test-branch
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```
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1. Navigate to the URL for your repository. In this case, the repository is `www-gitlab-com`, available at `https://gitlab.com/gitlab-com/www-gitlab-com`.
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If needed, sign in to GitLab. You should then see an option to **Create merge request**:
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1. After you click **Create merge request**, you'll see an option to **Change branches**. Select that option.
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1. In the **New Merge Request** screen, you can now select the **Source** and **Target** branches.
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In the screenshot shown,
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we have selected `test-branch` as the source, and `release-13-0` as the target.
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1. Once you've selected the Source and Target branches, click **Compare branches and continue**.
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You should see an entry similar to:
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```plaintext
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New Merge Request
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From test-branch into release-13-0
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```
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An entry like this confirms that your MR will **not** merge into master.
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1. Make any additional changes in the **New Merge Request** screen, and click **Submit merge request**.
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1. In the new merge request, look for **Request to merge**. You'll see an entry similar to:
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```plaintext
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Request to merge test-branch into release-13-0
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```
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That confirms you've set up the MR to merge into the specified branch, not master.
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1. Proceed with the change as you would with any other MR.
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1. When your MR is approved, and an appropriate user merges that MR, you can rest assured that your work is incorporated directly into the feature branch.
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When the feature branch is ready, it can then be merged into master.
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