Supported extensions and languages

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  • Tier: Premium, Ultimate
  • Add-on: GitLab Duo Pro or Enterprise, GitLab Duo with Amazon Q
  • Offering: GitLab.com, GitLab Self-Managed, GitLab Dedicated

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  • Changed to require GitLab Duo add-on in GitLab 17.6 and later.

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Code Suggestions is available in the following editor extensions and for the following languages.

Supported editor extensions

To use Code Suggestions, use one of these editor extensions:

IDE Extension
Visual Studio Code (VS Code) GitLab Workflow for VS Code
GitLab Web IDE (VS Code in the Cloud) No configuration required.
Microsoft Visual Studio (2022 for Windows) Visual Studio GitLab extension
JetBrains IDEs GitLab Duo Plugin for JetBrains
Neovim gitlab.vim plugin

A GitLab Language Server is used in VS Code, Visual Studio, and Neovim. The Language Server supports faster iteration across more platforms. You can also configure it to support Code Suggestions in IDEs where GitLab doesn’t provide official support.

You can express interest in other IDE extension support in this issue.

Supported languages by IDE

The following table provides more information on the languages Code Suggestions supports by default, and the IDEs.

Code Suggestions also works with other languages, but you must manually add support.

Language Web IDE VS Code JetBrains IDEs Visual Studio 2022 for Windows Neovim
C {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”dash-circle” >}} No {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes
C++ {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes
C# {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes
CSS {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”dash-circle” >}} No {{< icon name=”dash-circle” >}} No {{< icon name=”dash-circle” >}} No {{< icon name=”dash-circle” >}} No
Go {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes
Google SQL {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes
HAML {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes
HTML {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”dash-circle” >}} No {{< icon name=”dash-circle” >}} No {{< icon name=”dash-circle” >}} No {{< icon name=”dash-circle” >}} No
Java {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes
JavaScript {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes
Kotlin {{< icon name=”dash-circle” >}} No {{< icon name=”check-circle-filled” >}} Yes

(Requires third-party extension providing Kotlin support) 		{{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes
Markdown {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”dash-circle” >}} No {{< icon name=”dash-circle” >}} No {{< icon name=”dash-circle” >}} No {{< icon name=”dash-circle” >}} No
PHP {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes
Python {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes
Ruby {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes
Rust {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes
Scala {{< icon name=”dash-circle” >}} No {{< icon name=”check-circle-filled” >}} Yes

(Requires third-party extension providing Scala support) 		{{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes
Shell scripts (bash only) {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”dash-circle” >}} No {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes
Svelte {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes
Swift {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes
TypeScript (.ts and .tsx files) {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes
Terraform {{< icon name=”dash-circle” >}} No {{< icon name=”check-circle-filled” >}} Yes

(Requires third-party extension providing Terraform support) 		{{< icon name=”check-circle-filled” >}} Yes {{< icon name=”dash-circle” >}} No {{< icon name=”check-circle-filled” >}} Yes

(Requires third-party extension providing the terraform file type)
Vue {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes {{< icon name=”check-circle-filled” >}} Yes

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Some languages are not supported in all JetBrains IDEs, or might require additional plugin support. Refer to the JetBrains documentation for specifics on your IDE.

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Support for Infrastructure-as-Code (IaC)

Code Suggestions works with infrastructure-as-code interfaces, including:

  • Kubernetes Resource Model (KRM)
  • Google Cloud CLI
  • Terraform

Manage languages for Code Suggestions

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  • Introduced in GitLab Workflow for VS Code 4.21.0

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You can customize your coding experience in VS Code by enabling or disabling Code Suggestions for specific supported languages. You can do this by editing your settings.json file directly, or from the VS Code user interface:

  1. In VS Code, open the extension settings for GitLab Workflow:
    1. On the top bar, go to Code > Settings > Extensions.
    2. Search for GitLab Workflow in the list, and select Manage ({{< icon name=”settings” >}}).
    3. Select Extension Settings.
  2. In your User settings, find the section titled AI Assisted Code Suggestions: Enabled Supported Languages.
  3. To enable Code Suggestions for a language, select its checkbox.
  4. To disable Code Suggestions for a language, clear its checkbox.
  5. Your changes are automatically saved, and take effect immediately.

When you disable Code Suggestions for a language, the Duo icon changes to show that suggestions are disabled for this language. On hover, it shows Code Suggestions are disabled for this language.

Add support for more languages

If your desired language doesn’t have Code Suggestions available by default, you can add support for your language locally. However, Code Suggestions might not function as expected.

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Prerequisites:

To do this:

  1. Find your desired language in the list of language identifiers. You need the Identifier for your languages in a later step.
  2. In VS Code, open the extension settings for GitLab Workflow:
    1. On the top bar, go to Code > Settings > Extensions.
    2. Search for GitLab Workflow in the list, and select Manage ({{< icon name=”settings” >}}).
    3. Select Extension Settings.
    4. In your User settings, find GitLab › Ai Assisted Code Suggestions: Additional Languages and select Add Item.
  3. In Item, add the identifier for each language you want to support. Identifiers should be lowercase, like html or powershell. Don’t add leading periods from file suffixes to each identifier.
  4. Select OK.

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Prerequisites:

To do this:

  1. Find your desired language in the list of language identifiers. You need the identifier for your languages in a later step.
  2. In your IDE, on the top bar, select your IDE name, then select Settings.
  3. On the left sidebar, select Tools > GitLab Duo.
  4. Under Code Suggestions Enabled Languages > Additional languages, add the identifier for each language you want to support. Identifiers should be in lowercase, like html. Separate multiple identifiers with commas, like html,powershell,latex, and don’t add leading periods to each identifier.
  5. Select OK.

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