Initial commit

node_modules/execa/lib/io/pipeline.js

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+import {finished} from 'node:stream/promises';
+import {isStandardStream} from '../utils/standard-stream.js';
+
+// Similar to `Stream.pipeline(source, destination)`, but does not destroy standard streams
+export const pipeStreams = (source, destination) => {
+	source.pipe(destination);
+	onSourceFinish(source, destination);
+	onDestinationFinish(source, destination);
+};
+
+// `source.pipe(destination)` makes `destination` end when `source` ends.
+// But it does not propagate aborts or errors. This function does it.
+const onSourceFinish = async (source, destination) => {
+	if (isStandardStream(source) || isStandardStream(destination)) {
+		return;
+	}
+
+	try {
+		await finished(source, {cleanup: true, readable: true, writable: false});
+	} catch {}
+
+	endDestinationStream(destination);
+};
+
+export const endDestinationStream = destination => {
+	if (destination.writable) {
+		destination.end();
+	}
+};
+
+// We do the same thing in the other direction as well.
+const onDestinationFinish = async (source, destination) => {
+	if (isStandardStream(source) || isStandardStream(destination)) {
+		return;
+	}
+
+	try {
+		await finished(destination, {cleanup: true, readable: false, writable: true});
+	} catch {}
+
+	abortSourceStream(source);
+};
+
+export const abortSourceStream = source => {
+	if (source.readable) {
+		source.destroy();
+	}
+};