@naturalcycles/nodejs-lib/dist/stream/stream.util.js

Standard library for Node.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.pipelineClose = void 0;
function pipelineClose(name, readableDownstream, sourceReadable, streamDone, logger) {
    readableDownstream.push(null); // this closes the stream, so downstream Readable will receive `end` and won't write anything
    if (!sourceReadable) {
        logger.warn(`${name} sourceReadable is not provided, readable stream will not be stopped`);
    }
    else {
        logger.log(`${name} is calling readable.unpipe() to pause the stream`);
        sourceReadable.unpipe(); // it is expected to pause the stream
        if (!streamDone) {
            logger.log(`${name} streamDone is not provided, will do readable.destroy right away`);
            sourceReadable.destroy();
        }
        else {
            void streamDone.then(() => {
                logger.log(`${name} streamDone, calling readable.destroy()`);
                sourceReadable.destroy(); // this throws ERR_STREAM_PREMATURE_CLOSE
            });
        }
    }
}
exports.pipelineClose = pipelineClose;