Create a choice list of PSSA rules

package.json

@@ -123,6 +123,11 @@
                 "command": "PowerShell.ShowSessionMenu",
                 "title": "Show Session Menu",
                 "category": "PowerShell"
+            },
+            {
+                "command": "PowerShell.SelectPSSARules",
+                "title": "Select PSScriptAnalyzer Rules",
+                "category": "PowerShell"
             }
         ],
         "snippets": [

src/checkboxQuickPick.ts

@@ -0,0 +1,76 @@
+/*---------------------------------------------------------
+ * Copyright (C) Microsoft Corporation. All rights reserved.
+ *--------------------------------------------------------*/
+
+import vscode = require("vscode");
+import QuickPickItem = vscode.QuickPickItem;
+
+export class CheckboxQuickPickItem {
+    name: string;
+    isSelected: boolean;
+}
+
+export class CheckboxQuickPick {
+    private static readonly confirm: string = "$(check)";
+    private static readonly checkboxOn: string = "[ x ]";
+    private static readonly checkboxOff: string = "[   ]";
+    private static readonly confirmPlaceHolder: string = "Select 'Confirm' to confirm change; Press 'esc' key to cancel changes";
+
+    public static show(
+        checkboxQuickPickItems: CheckboxQuickPickItem[],
+        callback: (items: CheckboxQuickPickItem[]) => void): void {
+        CheckboxQuickPick.showInner(checkboxQuickPickItems.slice(), callback);
+    }
+
+    private static showInner(
+        items: CheckboxQuickPickItem[],
+        callback: (items: CheckboxQuickPickItem[]) => void): void {
+        vscode.window.showQuickPick(
+            CheckboxQuickPick.getQuickPickItems(items),
+            {
+                ignoreFocusOut: true,
+                matchOnDescription: true,
+                placeHolder: CheckboxQuickPick.confirmPlaceHolder
+            }).then((selection) => {
+                if (!selection) {
+                    return;
+                }
+
+                if (selection.label === CheckboxQuickPick.confirm) {
+                    callback(items);
+                    return;
+                }
+
+                let index: number = CheckboxQuickPick.getRuleIndex(items, selection.description);
+                CheckboxQuickPick.toggleSelection(items[index]);
+                CheckboxQuickPick.showInner(items, callback);
+            });
+    }
+
+    private static getRuleIndex(items: CheckboxQuickPickItem[], itemLabel: string): number {
+        return items.findIndex(item => item.name === itemLabel);
+    }
+
+    private static getQuickPickItems(items: CheckboxQuickPickItem[]): QuickPickItem[] {
+        let quickPickItems: QuickPickItem[] = [];
+        quickPickItems.push({ label: CheckboxQuickPick.confirm, description: "Confirm" });
+        items.forEach(item =>
+            quickPickItems.push({
+                label: CheckboxQuickPick.convertToCheckBox(item.isSelected), description: item.name
+            }));
+        return quickPickItems;
+    }
+
+    private static toggleSelection(item: CheckboxQuickPickItem): void {
+        item.isSelected = !item.isSelected;
+    }
+
+    private static convertToCheckBox(state: boolean): string {
+        if (state) {
+            return CheckboxQuickPick.checkboxOn;
+        }
+        else {
+            return CheckboxQuickPick.checkboxOff;
+        }
+    }
+}

src/features/SelectPSSARules.ts

@@ -0,0 +1,68 @@
+/*---------------------------------------------------------
+ * Copyright (C) Microsoft Corporation. All rights reserved.
+ *--------------------------------------------------------*/
+
+import vscode = require("vscode");
+import { IFeature } from "../feature";
+import { LanguageClient, RequestType } from "vscode-languageclient";
+import { CheckboxQuickPickItem, CheckboxQuickPick } from "../checkboxQuickPick";
+
+export namespace GetPSSARulesRequest {
+    export const type: RequestType<any, any, void> = { get method(): string { return "powerShell/getPSSARules"; } };
+}
+
+export namespace SetPSSARulesRequest {
+    export const type: RequestType<any, any, void> = { get method(): string { return "powerShell/setPSSARules"; } };
+}
+
+class RuleInfo {
+    name: string;
+    isEnabled: boolean;
+}
+
+class SetPSSARulesRequestParams {
+    filepath: string;
+    ruleInfos: RuleInfo[];
+}
+
+export class SelectPSSARulesFeature implements IFeature {
+
+    private command: vscode.Disposable;
+    private languageClient: LanguageClient;
+
+    constructor() {
+        this.command = vscode.commands.registerCommand("PowerShell.SelectPSSARules", () => {
+            if (this.languageClient === undefined) {
+                return;
+            }
+
+            this.languageClient.sendRequest(GetPSSARulesRequest.type, null).then((returnedRules) => {
+                if (returnedRules == null) {
+                    vscode.window.showWarningMessage(
+                        "PowerShell extension uses PSScriptAnalyzer settings file - Cannot update rules.");
+                    return;
+                }
+                let options: CheckboxQuickPickItem[] = returnedRules.map(function (rule: RuleInfo): CheckboxQuickPickItem {
+                    return { name: rule.name, isSelected: rule.isEnabled };
+                });
+                CheckboxQuickPick.show(options, (updatedOptions) => {
+                    let filepath: string = vscode.window.activeTextEditor.document.uri.fsPath;
+                    let ruleInfos: RuleInfo[] = updatedOptions.map(
+                        function (option: CheckboxQuickPickItem): RuleInfo {
+                            return { name: option.name, isEnabled: option.isSelected };
+                        });
+                    let requestParams: SetPSSARulesRequestParams = {filepath, ruleInfos};
+                    this.languageClient.sendRequest(SetPSSARulesRequest.type, requestParams);
+                });
+            });
+        });
+    }
+
+    public setLanguageClient(languageclient: LanguageClient): void {
+        this.languageClient = languageclient;
+    }
+
+    public dispose(): void {
+        this.command.dispose();
+    }
+}

src/main.ts

@@ -15,6 +15,7 @@ import { ExpandAliasFeature } from './features/ExpandAlias';
 import { ShowHelpFeature } from './features/ShowOnlineHelp';
 import { FindModuleFeature } from './features/PowerShellFindModule';
 import { ExtensionCommandsFeature } from './features/ExtensionCommands';
+import { SelectPSSARulesFeature } from './features/SelectPSSARules';
 import { CodeActionsFeature } from './features/CodeActions';
 
 // NOTE: We will need to find a better way to deal with the required
@@ -76,6 +77,7 @@ export function activate(context: vscode.ExtensionContext): void {
         new ShowHelpFeature(),
         new FindModuleFeature(),
         new ExtensionCommandsFeature(),
+        new SelectPSSARulesFeature(),
         new CodeActionsFeature()
     ];