Add configuration to enable/disable banner (#2398)

Author: rjmholt

package.json

@@ -705,6 +705,11 @@
           "type": "boolean",
           "description": "Use the vscode API to clear the terminal since that's the only reliable way to clear the scrollback buffer. Turn this on if you're use to 'Clear-Host' clearing scroll history as wellclear-terminal-via-lsp."
         },
+        "powershell.integratedConsole.suppressStartupBanner": {
+          "type": "boolean",
+          "default": false,
+          "description": "Do not show the Powershell Integrated Console banner on launch"
+        },
         "powershell.debugging.createTemporaryIntegratedConsole": {
           "type": "boolean",
           "default": false,

src/session.ts

@@ -187,6 +187,10 @@ export class SessionManager implements Middleware {
             `-BundledModulesPath '${PowerShellProcess.escapeSingleQuotes(this.bundledModulesPath)}' ` +
             `-EnableConsoleRepl `;
 
+        if (this.sessionSettings.integratedConsole.suppressStartupBanner) {
+            this.editorServicesArgs += "-StartupBanner '' ";
+        }
+
         if (this.sessionSettings.developer.editorServicesWaitForDebugger) {
             this.editorServicesArgs += "-WaitForDebugger ";
         }

src/settings.ts

@@ -101,6 +101,7 @@ export interface IIntegratedConsoleSettings {
     focusConsoleOnExecute?: boolean;
     useLegacyReadLine?: boolean;
     forceClearScrollbackBuffer?: boolean;
+    suppressStartupBanner?: boolean;
 }
 
 export interface ISideBarSettings {