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Chapter 5. Selecting a workspace IDE

The default in-browser IDE in a new workspace is Che Theia.

You can select another supported in-browser IDE by either method:

Expand
Table 5.1. Supported in-browser IDEs
IDEidNote

Che-Theia

eclipse/che-theia/latest

Default editor when the URL parameter or che-editor.yaml is not used

Visual Studio Code - Open Source

che-incubator/che-code/insiders

Technology Preview

IntelliJ IDEA Community

che-incubator/che-idea/latest

Technology Preview

5.1. Selecting an in-browser IDE for one new workspace
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You can select your preferred in-browser IDE when using a URL for starting a new workspace. This way, each developer using OpenShift Dev Spaces can start a workspace with a clone of the same project repository and the personal choice of the in-browser IDE.

Procedure

  1. Include the URL parameter for the workspace IDE in the URL for starting a new workspace.
  2. Visit the URL in the browser.

Verification

  • Verify that the selected in-browser IDE loads in the browser tab of the started workspace.

5.2.1. Setting up che-editor.yaml
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To define the same in-browser IDE for all workspaces that will clone the same remote Git repository of your project, you can use the che-editor.yaml file.

This way, you can set a common default editor for your team and provide new contributors with the most suitable editor for your project. You can also use the che-editor.yaml file when you need to set a different IDE default for a particular project repository rather than the default IDE of your organization’s OpenShift Dev Spaces instance.

Procedure

  • In the remote Git repository of your project, create a /.che/che-editor.yaml file with lines that specify the relevant parameter, as described in the next section.

Verification

  1. Visit the URL for starting a new workspace.
  2. Verify that the selected in-browser IDE loads in the browser tab of the started workspace.

5.2.2. Parameters for che-editor.yaml
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The simplest way to select an IDE in the che-editor.yaml is to specify the id of an IDE that is available in the table of supported in-browser IDEs in Chapter 5, Selecting a workspace IDE:

Example 5.1. id selects an IDE from the plug-in registry

id: che-incubator/che-code/insiders
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As alternatives to providing the id parameter, the che-editor.yaml file supports a reference to the URL of another che-editor.yaml file or an inline definition for an IDE outside of a plug-in registry:

Example 5.2. reference points to a remote che-editor.yaml file

reference: https://<hostname_and_path_to_a_remote_file>/che-editor.yaml
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Example 5.3. inline specifies a complete definition for a customized IDE without a plug-in registry

inline:
  schemaVersion: 2.1.0
  metadata:
    name: theia-ide
  commands:
    ...
  events:
    ...
  components:
    - name: che-machine-exec
      container:
        image: 'quay.io/eclipse/che-machine-exec:next'
        command:
          ...
        memoryLimit: 128Mi
        memoryRequest: 32Mi
        cpuLimit: 500m
        cpuRequest: 30m
      attributes:
...
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For more complex scenarios, the che-editor.yaml file supports the registryUrl and override parameters:

Example 5.4. registryUrl points to a custom plug-in registry rather than to the default OpenShift Dev Spaces plug-in registry

id: <editor_id>
1 

registryUrl: <url_of_custom_plug-in_registry>
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The id of the IDE in the custom plug-in registry.

Example 5.5. override of the default value of one or more defined properties of the IDE

...
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override:
  containers:
    - name: theia-ide
      memoryLimit: 1280Mi
      cpuLimit: 1510m
      cpuRequest: 102m
    ...
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id:, registryUrl:, or reference:.
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