@rushstack/operation-graph/lib-dts/IOperationRunner.d.ts

Library for managing and executing operations in a directed acyclic graph.

import type { OperationStatus } from './OperationStatus';
import type { OperationError } from './OperationError';
import type { Stopwatch } from './Stopwatch';
/**
 * Information passed to the executing `IOperationRunner`
 *
 * @beta
 */
export interface IOperationRunnerContext {
    /**
     * An abort signal for the overarching execution. Runners should do their best to gracefully abort
     * as soon as possible if the signal is aborted.
     */
    abortSignal: AbortSignal;
    /**
     * If this is the first time this operation has been executed.
     */
    isFirstRun: boolean;
    /**
     * A callback to the overarching orchestrator to request that the operation be invoked again.
     * Used in watch mode to signal that inputs have changed.
     *
     * @param detail - Optional detail about why the rerun is requested, e.g. the name of a changed file.
     */
    requestRun?: (detail?: string) => void;
}
/**
 * Interface contract for a single state of an operation.
 *
 * @beta
 */
export interface IOperationState {
    /**
     * The status code for the operation.
     */
    status: OperationStatus;
    /**
     * Whether the operation has been run at least once.
     */
    hasBeenRun: boolean;
    /**
     * The error, if the status is `OperationStatus.Failure`.
     */
    error: OperationError | undefined;
    /**
     * Timing information for the operation.
     */
    stopwatch: Stopwatch;
}
/**
 * Interface contract for the current and past state of an operation.
 *
 * @beta
 */
export interface IOperationStates {
    /**
     * The current state of the operation.
     */
    readonly state: Readonly<IOperationState> | undefined;
    /**
     * The previous state of the operation.
     */
    readonly lastState: Readonly<IOperationState> | undefined;
}
/**
 * The `Operation` class is a node in the dependency graph of work that needs to be scheduled by the
 * `OperationExecutionManager`. Each `Operation` has a `runner` member of type `IOperationRunner`, whose
 * implementation manages the actual process for running a single operation.
 *
 * @beta
 */
export interface IOperationRunner {
    /**
     * Name of the operation, for logging.
     */
    readonly name: string;
    /**
     * Indicates that this runner is architectural and should not be reported on.
     */
    silent: boolean;
    /**
     * Method to be executed for the operation.
     */
    executeAsync(context: IOperationRunnerContext): Promise<OperationStatus>;
}
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