Improve python debug welcome view (#389)

* Add contribViewsWelcome api

* Add when

* Add context for dynamicConfigs

* Update welcome view to run command to show dynamic configs for python

* fix lint

package.json

@@ -7,7 +7,8 @@
     "enabledApiProposals": [
         "portsAttributes",
         "contribIssueReporter",
-        "debugVisualization"
+        "debugVisualization",
+        "contribViewsWelcome"
     ],
     "license": "MIT",
     "homepage": "https://github.com/Microsoft/vscode-python-debugger",
@@ -521,6 +522,13 @@
                 "id": "inlineHexDecoder",
                 "when": "debugConfigurationType == 'debugpy' && (variableType == 'float' || variableType == 'int')"
             }
+        ],
+        "viewsWelcome": [
+            {
+                "view": "debug",
+                "contents": "\n[Show automatic Python configurations](command:workbench.action.debug.selectandstart?%5B%22debugpy%22%5D)\n",
+                "when": "dynamicPythonConfigAvailable"
+            }
         ]
     },
     "extensionDependencies": [

src/extension/extensionInit.ts

@@ -206,5 +206,11 @@ export async function registerDebugger(context: IExtensionContext): Promise<IExt
         }),
     );
 
+    executeCommand(
+        'setContext',
+        'dynamicPythonConfigAvailable',
+        window.activeTextEditor?.document.languageId === 'python',
+    );
+
     return buildApi();
 }