plugin: stub ExtensionMode implementation

The commit stubs `ExtensionMode` in order not to fail on activation of
popular extensions (ex: gitlens). The proper implementation should be
done in future iterations.

Signed-off-by: vince-fugnitto <[email protected]>

Author: vince-fugnitto

packages/plugin-ext/src/plugin/plugin-context.ts

@@ -135,7 +135,8 @@ import {
     ColorThemeKind,
     SourceControlInputBoxValidationType,
     URI,
-    FileDecoration
+    FileDecoration,
+    ExtensionMode
 } from './types-impl';
 import { AuthenticationExtImpl } from './authentication-ext';
 import { SymbolKind } from '../common/plugin-api-rpc-model';
@@ -959,7 +960,8 @@ export function createAPIFactory(
             ColorThemeKind,
             SourceControlInputBoxValidationType,
             FileDecoration,
-            CancellationError
+            CancellationError,
+            ExtensionMode
         };
     };
 }

packages/plugin-ext/src/plugin/plugin-manager.ts

@@ -382,7 +382,8 @@ export class PluginManagerExtImpl implements PluginManagerExt, PluginManager {
             secrets,
             globalStoragePath: globalStoragePath,
             globalStorageUri: Uri.file(globalStoragePath),
-            environmentVariableCollection: this.terminalService.getEnvironmentVariableCollection(plugin.model.id)
+            environmentVariableCollection: this.terminalService.getEnvironmentVariableCollection(plugin.model.id),
+            extensionMode: 1 // @todo: implement proper `extensionMode`.
         };
         this.pluginContextsMap.set(plugin.model.id, pluginContext);
 

packages/plugin-ext/src/plugin/types-impl.ts

@@ -189,6 +189,26 @@ export enum ColorThemeKind {
     HighContrast = 3
 }
 
+export enum ExtensionMode {
+    /**
+     * The extension is installed normally (for example, from the marketplace
+     * or VSIX) in the editor.
+     */
+    Production = 1,
+
+    /**
+     * The extension is running from an `--extensionDevelopmentPath` provided
+     * when launching the editor.
+     */
+    Development = 2,
+
+    /**
+     * The extension is running from an `--extensionTestsPath` and
+     * the extension host is running unit tests.
+     */
+    Test = 3,
+}
+
 /**
  * Represents the validation type of the Source Control input.
  */

packages/plugin/src/theia.d.ts

@@ -3039,6 +3039,31 @@ declare module '@theia/plugin' {
         clear(): void;
     }
 
+    /**
+     * The ExtensionMode is provided on the `ExtensionContext` and indicates the
+     * mode the specific extension is running in.
+     */
+    export enum ExtensionMode {
+
+        /**
+         * The extension is installed normally (for example, from the marketplace
+         * or VSIX) in the editor.
+         */
+        Production = 1,
+
+        /**
+         * The extension is running from an `--extensionDevelopmentPath` provided
+         * when launching the editor.
+         */
+        Development = 2,
+
+        /**
+         * The extension is running from an `--extensionTestsPath` and
+         * the extension host is running unit tests.
+         */
+        Test = 3,
+    }
+
     /**
      * A plug-in context is a collection of utilities private to a
      * plug-in.
@@ -3165,6 +3190,13 @@ declare module '@theia/plugin' {
          * the parent directory is guaranteed to be existent.
          */
         readonly logPath: string;
+
+        /**
+         * The mode the extension is running in. This is specific to the current
+         * extension. One extension may be in `ExtensionMode.Development` while
+         * other extensions in the host run in `ExtensionMode.Release`.
+         */
+        readonly extensionMode: ExtensionMode;
     }
 
     /**