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- import mergeStreams from '@sindresorhus/merge-streams';
- import {waitForSubprocessStream} from './stdio.js';
- // `all` interleaves `stdout` and `stderr`
- export const makeAllStream = ({stdout, stderr}, {all}) => all && (stdout || stderr)
- ? mergeStreams([stdout, stderr].filter(Boolean))
- : undefined;
- // Read the contents of `subprocess.all` and|or wait for its completion
- export const waitForAllStream = ({subprocess, encoding, buffer, maxBuffer, lines, stripFinalNewline, verboseInfo, streamInfo}) => waitForSubprocessStream({
- ...getAllStream(subprocess, buffer),
- fdNumber: 'all',
- encoding,
- maxBuffer: maxBuffer[1] + maxBuffer[2],
- lines: lines[1] || lines[2],
- allMixed: getAllMixed(subprocess),
- stripFinalNewline,
- verboseInfo,
- streamInfo,
- });
- const getAllStream = ({stdout, stderr, all}, [, bufferStdout, bufferStderr]) => {
- const buffer = bufferStdout || bufferStderr;
- if (!buffer) {
- return {stream: all, buffer};
- }
- if (!bufferStdout) {
- return {stream: stderr, buffer};
- }
- if (!bufferStderr) {
- return {stream: stdout, buffer};
- }
- return {stream: all, buffer};
- };
- // When `subprocess.stdout` is in objectMode but not `subprocess.stderr` (or the opposite), we need to use both:
- // - `getStreamAsArray()` for the chunks in objectMode, to return as an array without changing each chunk
- // - `getStreamAsArrayBuffer()` or `getStream()` for the chunks not in objectMode, to convert them from Buffers to string or Uint8Array
- // We do this by emulating the Buffer -> string|Uint8Array conversion performed by `get-stream` with our own, which is identical.
- const getAllMixed = ({all, stdout, stderr}) => all
- && stdout
- && stderr
- && stdout.readableObjectMode !== stderr.readableObjectMode;
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