[rush-serve-plugin] Allow configuring operation enable/disable states via websocket

common/changes/@microsoft/rush/watch-changed-only_2025-04-17-00-17.json

@@ -0,0 +1,10 @@
+{
+  "changes": [
+    {
+      "packageName": "@microsoft/rush",
+      "comment": "Fix telemetry for \"--changed-projects-only\" when toggled in watch mode.",
+      "type": "none"
+    }
+  ],
+  "packageName": "@microsoft/rush"
+}

common/changes/@microsoft/rush/watch-changed-only_2025-04-17-00-18.json

@@ -0,0 +1,10 @@
+{
+  "changes": [
+    {
+      "packageName": "@microsoft/rush",
+      "comment": "(rush-serve-plugin) Support websocket message to enable/disable operations.",
+      "type": "none"
+    }
+  ],
+  "packageName": "@microsoft/rush"
+}

libraries/rush-lib/src/cli/scriptActions/PhasedScriptAction.ts

@@ -146,6 +146,7 @@ export class PhasedScriptAction extends BaseScriptAction<IPhasedCommandConfig> {
   private readonly _alwaysInstall: boolean | undefined;
   private readonly _knownPhases: ReadonlyMap<string, IPhase>;
   private readonly _terminal: ITerminal;
+  private _changedProjectsOnly: boolean;
 
   private readonly _changedProjectsOnlyParameter: CommandLineFlagParameter | undefined;
   private readonly _selectionParameters: SelectionParameterSet;
@@ -162,8 +163,6 @@ export class PhasedScriptAction extends BaseScriptAction<IPhasedCommandConfig> {
   private readonly _debugBuildCacheIdsParameter: CommandLineFlagParameter;
   private readonly _includePhaseDeps: CommandLineFlagParameter | undefined;
 
-  private _changedProjectsOnly: boolean;
-
   public constructor(options: IPhasedScriptActionOptions) {
     super(options);
     this._enableParallelism = options.enableParallelism;
@@ -845,7 +844,7 @@ export class PhasedScriptAction extends BaseScriptAction<IPhasedCommandConfig> {
       // Account for consumer relationships
       const executeOperationsContext: IExecuteOperationsContext = {
         ...initialCreateOperationsContext,
-        changedProjectsOnly: this._changedProjectsOnly,
+        changedProjectsOnly: !!this._changedProjectsOnly,
         isInitial: false,
         inputsSnapshot: state,
         projectsInUnknownState: changedProjects,
@@ -961,6 +960,13 @@ export class PhasedScriptAction extends BaseScriptAction<IPhasedCommandConfig> {
         countNoOp: 0
       };
 
+      const { _changedProjectsOnlyParameter: changedProjectsOnlyParameter } = this;
+      if (changedProjectsOnlyParameter) {
+        // Overwrite this value since we allow changing it at runtime.
+        extraData[changedProjectsOnlyParameter.scopedLongName ?? changedProjectsOnlyParameter.longName] =
+          this._changedProjectsOnly;
+      }
+
       if (result) {
         const { operationResults } = result;
 

libraries/rush-lib/src/logic/operations/PhasedOperationPlugin.ts

@@ -21,6 +21,14 @@ const PLUGIN_NAME: 'PhasedOperationPlugin' = 'PhasedOperationPlugin';
 export class PhasedOperationPlugin implements IPhasedCommandPlugin {
   public apply(hooks: PhasedCommandHooks): void {
     hooks.createOperations.tap(PLUGIN_NAME, createOperations);
+    // Configure operations later.
+    hooks.createOperations.tap(
+      {
+        name: `${PLUGIN_NAME}.Configure`,
+        stage: 1000
+      },
+      configureOperations
+    );
   }
 }
 
@@ -40,8 +48,6 @@ function createOperations(
     }
   }
 
-  configureOperations(existingOperations, context);
-
   return existingOperations;
 
   // Binds phaseSelection, projectSelection, operations via closure
@@ -88,7 +94,7 @@ function createOperations(
   }
 }
 
-function configureOperations(operations: ReadonlySet<Operation>, context: ICreateOperationsContext): void {
+function configureOperations(operations: Set<Operation>, context: ICreateOperationsContext): Set<Operation> {
   const {
     changedProjectsOnly,
     projectsInUnknownState: changedProjects,
@@ -149,6 +155,8 @@ function configureOperations(operations: ReadonlySet<Operation>, context: ICreat
       operation.enabled &&= phaseSelection.has(associatedPhase) && projectSelection.has(associatedProject);
     }
   }
+
+  return operations;
 }
 
 // Convert the [IPhase, RushConfigurationProject] into a value suitable for use as a Map key

rush-plugins/rush-serve-plugin/src/api.types.ts

@@ -151,7 +151,31 @@ export interface IWebSocketSyncCommandMessage {
   command: 'sync';
 }
 
+/**
+ * Message received from a WebSocket client to request invalidation of one or more operations.
+ */
+export interface IWebSocketInvalidateCommandMessage {
+  command: 'invalidate';
+  operationNames: string[];
+}
+
+/**
+ * The set of possible operation enabled states.
+ */
+export type OperationEnabledState = 'never' | 'changed' | 'affected';
+
+/**
+ * Message received from a WebSocket client to change the enabled states of operations.
+ */
+export interface IWebSocketSetEnabledStatesCommandMessage {
+  command: 'set-enabled-states';
+  enabledStateByOperationName: Record<string, OperationEnabledState>;
+}
+
 /**
  * The set of possible messages received from a WebSocket client.
  */
-export type IWebSocketCommandMessage = IWebSocketSyncCommandMessage;
+export type IWebSocketCommandMessage =
+  | IWebSocketSyncCommandMessage
+  | IWebSocketInvalidateCommandMessage
+  | IWebSocketSetEnabledStatesCommandMessage;

rush-plugins/rush-serve-plugin/src/phasedCommandHandler.ts

@@ -45,7 +45,8 @@ import type {
   ReadableOperationStatus,
   IWebSocketCommandMessage,
   IRushSessionInfo,
-  ILogFileURLs
+  ILogFileURLs,
+  OperationEnabledState
 } from './api.types';
 
 export interface IPhasedCommandHandlerOptions {
@@ -389,6 +390,51 @@ function tryEnableBuildStatusWebSocketServer(
 
   const { hooks } = command;
 
+  let invalidateOperation: ((operation: Operation, reason: string) => void) | undefined;
+
+  const operationEnabledStates: Map<string, OperationEnabledState> = new Map();
+  hooks.createOperations.tap(
+    {
+      name: PLUGIN_NAME,
+      stage: Infinity
+    },
+    (operations: Set<Operation>, context: ICreateOperationsContext) => {
+      const potentiallyAffectedOperations: Set<Operation> = new Set();
+      for (const operation of operations) {
+        const { associatedProject } = operation;
+        if (context.projectsInUnknownState.has(associatedProject)) {
+          potentiallyAffectedOperations.add(operation);
+        }
+      }
+      for (const operation of potentiallyAffectedOperations) {
+        for (const consumer of operation.consumers) {
+          potentiallyAffectedOperations.add(consumer);
+        }
+
+        const { name } = operation;
+        const expectedState: OperationEnabledState | undefined = operationEnabledStates.get(name);
+        switch (expectedState) {
+          case 'affected':
+            operation.enabled = true;
+            break;
+          case 'never':
+            operation.enabled = false;
+            break;
+          case 'changed':
+            operation.enabled = context.projectsInUnknownState.has(operation.associatedProject);
+            break;
+          case undefined:
+            // Use the original value.
+            break;
+        }
+      }
+
+      invalidateOperation = context.invalidateOperation;
+
+      return operations;
+    }
+  );
+
   hooks.beforeExecuteOperations.tap(
     PLUGIN_NAME,
     (operationsToExecute: Map<Operation, IOperationExecutionResult>): void => {
@@ -452,6 +498,27 @@ function tryEnableBuildStatusWebSocketServer(
             break;
           }
 
+          case 'set-enabled-states': {
+            const { enabledStateByOperationName } = parsedMessage;
+            for (const [name, state] of Object.entries(enabledStateByOperationName)) {
+              operationEnabledStates.set(name, state);
+            }
+            break;
+          }
+
+          case 'invalidate': {
+            const { operationNames } = parsedMessage;
+            const operationNameSet: Set<string> = new Set(operationNames);
+            if (invalidateOperation && operationStates) {
+              for (const operation of operationStates.keys()) {
+                if (operationNameSet.has(operation.name)) {
+                  invalidateOperation(operation, 'WebSocket');
+                }
+              }
+            }
+            break;
+          }
+
           default: {
             // Unknown message. Ignore.
           }