242 lines
10 KiB
Markdown
242 lines
10 KiB
Markdown
# Labels
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## Overview
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Labels allow you to categorize epics, issues, and merge requests using descriptive titles like
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`bug`, `feature request`, or `docs`, as well as customizable colors. They allow you to quickly
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and dynamically filter and manage epics, issues, and merge requests, and are a key
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part of [issue boards](issue_board.md).
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You can use labels to help [search](../search/index.md#issues-and-merge-requests) in
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lists of issues, merge requests, and epics, as well as [search in issue boards](../search/index.md#issue-boards).
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## Project labels and group labels
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There are two types of labels in GitLab:
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- **Project labels** can be assigned to issues and merge requests in that project only.
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- **Group labels** can be assigned to issues and merge requests in any project in
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the selected group or its subgroups.
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- They can also be assigned to epics in the selected group or its subgroups.**(ULTIMATE)**
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## Assign and unassign labels
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Every issue, merge request and epic can be assigned any number of labels. The labels are
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managed in the right sidebar, where you can assign or unassign labels as needed.
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To assign a label to an issue, merge request or epic:
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1. In the label section of the sidebar, click **Edit**, then:
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- In the list, click the labels you want. Each label is flagged with a checkmark.
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- Find labels by entering a search query and clicking search (**{search}**), then
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click on them. You can search repeatedly and add more labels.
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1. Click **X** or anywhere outside the label section and the labels are applied.
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You can also assign a label with the [`/assign @username` quick action](quick_actions.md).
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## Label management
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Users with a [permission level](../permissions.md) of Reporter or higher are able to create
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and edit labels.
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### Project labels
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View the project labels list by going to the project and clicking **Issues > Labels**.
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The list includes all labels that are defined at the project level, as well as all
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labels inherited from the parent group. You can filter the list by entering a search
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query at the top and clicking search (**{search}**).
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To create a new project label:
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1. Navigate to **Issues > Labels** in the project.
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1. Click the **New label** button.
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- Enter the title.
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- (Optional) Enter a description.
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- (Optional) Select a background color by clicking on the available colors, or input
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a hex color value for a specific color.
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1. Click **Create label** to create the label.
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You can also create a new project label from within an issue or merge request. In the
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label section of the right sidebar of an issue or a merge request:
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1. Click **Edit**.
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1. Click **Create project label**.
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- Fill in the name field. Note that you can't specify a description if creating a label
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this way. You can add a description later by editing the label (see below).
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- (Optional) Select a color by clicking on the available colors, or input a hex
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color value for a specific color.
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1. Click **Create**.
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Once created, you can edit a label by clicking the pencil (**{pencil}**), or delete
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a label by clicking the three dots (**{ellipsis_v}**) next to the **Subscribe** button
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and selecting **Delete**.
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#### Promote a project label to a group label
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If you previously created a project label and now want to make it available for other
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projects within the same group, you can promote it to a group label.
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If other projects in the same group have a label with the same title, they will all be
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merged with the new group label. If a group label with the same title exists, it will
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also be merged.
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All issues, merge requests, issue board lists, issue board filters, and label subscriptions
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with the old labels will be assigned to the new group label.
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WARNING: **Caution:**
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Promoting a label is a permanent action, and cannot be reversed.
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To promote a project label to a group label:
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1. Navigate to **Issues > Labels** in the project.
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1. Click on the three dots (**{ellipsis_v}**) next to the **Subscribe** button and
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select **Promote to group label**.
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### Group labels
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View the group labels list by going to the group and clicking **Issues > Labels**.
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The list includes all labels that are defined at the group level only. It does not
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list any labels that are defined in projects. You can filter the list by entering
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a search query at the top and clicking search (**{search}**).
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To create a **group label**, navigate to **Issues > Labels** in the group and
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follow the same process as [creating a project label](#project-labels).
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#### Create group labels from epics **(ULTIMATE)**
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You can create group labels from the Epic sidebar. The labels you create will
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belong to the immediate group to which the epic belongs. The process is the same as
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creating a [project label from an issue or merge request](#project-labels).
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### Generate default labels
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If a project or group has no labels, you can generate a default set of project or group
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labels from the label list page. The page will show a **Generate a default set of labels**
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button if the list is empty, and clicking it will add the following default labels
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to the project:
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- `bug`
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- `confirmed`
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- `critical`
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- `discussion`
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- `documentation`
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- `enhancement`
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- `suggestion`
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- `support`
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## Scoped labels **(PREMIUM)**
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> [Introduced](https://gitlab.com/gitlab-org/gitlab/issues/9175) in [GitLab Premium](https://about.gitlab.com/pricing/) 11.10.
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Scoped labels allow teams to use the label feature to annotate issues, merge requests
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and epics with mutually exclusive labels. This can enable more complicated workflows
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by preventing certain labels from being used together.
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A label is scoped when it uses a special double-colon (`::`) syntax in the label’s
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title, for example:
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An issue, merge request or epic cannot have two scoped labels, of the form `key::value`,
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with the same `key`. Adding a new label with the same `key`, but a different `value` will
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cause the previous `key` label to be replaced with the new label.
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Example use case:
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1. An issue is identified as being low priority, and a `priority::low` project
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label is added to it.
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1. After more review the issue priority is increased, and a `priority::high` label is
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added.
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1. GitLab automatically removes the `priority::low` label, as an issue should not
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have two priority labels at the same time.
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### Workflows with scoped labels
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Suppose you wanted a custom field in issues to track the operating system platform
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that your features target, where each issue should only target one platform. You
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would then create three labels `platform::iOS`, `platform::Android`, `platform::Linux`.
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Applying any one of these labels on a given issue would automatically remove any other
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existing label that starts with `platform::`.
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The same pattern could be applied to represent the workflow states of your teams.
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Suppose you have the labels `workflow::development`, `workflow::review`, and
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`workflow::deployed`. If an issue already has the label `workflow::development`
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applied, and a developer wanted to advance the issue to `workflow::review`, they
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would simply apply that label, and the `workflow::development` label would
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automatically be removed. This behavior already exists when you move issues
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across label lists in an [issue board](issue_board.md#creating-workflows), but
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now, team members who may not be working in an issue board directly would still
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be able to advance workflow states consistently in issues themselves.
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This functionality is demonstrated in a video regarding
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[using scoped labels for custom fields and workflows](https://www.youtube.com/watch?v=4BCBby6du3c).
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### Scoped labels with nested scopes
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You can create a label with a nested scope by using multiple double colons `::` when creating
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it. In this case, everything before the last `::` will be the scope.
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For example, `workflow::backend::review` and `workflow::backend::development` are valid
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scoped labels, but they **can't** exist on the same issue at the same time, as they
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both share the same scope, `workflow::backend`.
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Additionally, `workflow::backend::review` and `workflow::frontend::review` are valid
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scoped labels, and they **can** exist on the same issue at the same time, as they
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both have different scopes, `workflow::frontend` and `workflow::backend`.
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## Subscribing to labels
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From the project label list page and the group label list page, you can click **Subscribe**
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to the right of any label to enable [notifications](../profile/notifications.md) for that
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label. You will be notified whenever the label is assigned to an epic,
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issue, or merge request.
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If you are subscribing to a group label from within a project, you can select to subscribe
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to label notifications for the project only, or the whole group.
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## Label priority
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> - [Introduced](https://gitlab.com/gitlab-org/gitlab-foss/issues/14189) in GitLab 8.9.
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> - Priority sorting is based on the highest priority label only. [This discussion](https://gitlab.com/gitlab-org/gitlab/issues/14523) considers changing this.
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Labels can have relative priorities, which are used in the **Label priority** and
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**Priority** sort orders of the epic, issue, and merge request list pages. Prioritization
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for both group and project labels happens at the project level, and cannot be done
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from the group label list.
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From the project label list page, star a label to indicate that it has a priority.
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Drag starred labels up and down the list to change their priority, where higher in the list
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means higher priority.
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On the epic, merge request, and issue list pages (for both groups and projects) you
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can sort by `Label priority` or `Priority`.
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If you sort by `Label priority`, GitLab uses this sort comparison order:
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1. Items with a higher priority label.
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1. Items without a prioritized label.
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Ties are broken arbitrarily. Note that only the highest prioritized label is checked,
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and labels with a lower priority are ignored. See this [related issue](https://gitlab.com/gitlab-org/gitlab/issues/14523)
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for more information.
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If you sort by `Priority`, GitLab uses this sort comparison order:
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1. Items with milestones that have due dates, where the soonest assigned [milestone](milestones/index.md)
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is listed first.
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1. Items with milestones with no due dates.
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1. Items with a higher priority label.
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1. Items without a prioritized label.
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Ties are broken arbitrarily.
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