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8.8.0 — Pressure Tested

This release enhances the coherence between the ProcessPromise and the Streams API, eliminating the need for certain script-level workarounds.

✨ New Features

unpipe() — Selectively stop piping

You can now call .unpipe() to stop data transfer from a source to a destination without closing any of the pair. #1302

const p1 = $`echo foo && sleep 0.1 && echo bar && sleep 0.1 && echo baz && sleep 0.1 && echo qux`
const p2 = $`echo 1 && sleep 0.15 && echo 2 && sleep 0.1 && echo 3`
const p3 = $`cat`
p1.pipe(p3)
p2.pipe(p3)
setTimeout(() => p1.unpipe(p3), 150)
const { stdout } = await p3
// 'foo\n1\nbar\n2\n3\n'

Many-to-one piping

Multiple sources can now stream into a single destination. All sources complete before the destination closes. #1300

const $h = $({ halt: true })
const p1 = $`echo foo`
const p2 = $h`echo a && sleep 0.1 && echo c && sleep 0.2 && echo e`
const p3 = $h`sleep 0.05 && echo b && sleep 0.1 && echo d`
const p4 = $`sleep 0.4 && echo bar`
const p5 = $h`cat`
await p1
p1.pipe(p5)
p2.pipe(p5)
p3.pipe(p5)
p4.pipe(p5)
const { stdout } = await p5.run()
// 'foo\na\nb\nc\nd\ne\nbar\n'

Piping from rejected processes

Processes that exit with errors can now still pipe their output. The internal recorder retains their stream, status, and exit code. #1296

const p1 = $({ nothrow: true })`echo foo && exit 1`
await p1
</tr></table>

... (truncated)

• 820a85c test: check fetch() polyfill for legacy nodejs versions (#1306)
• d2929c4 chore: update node-fetch-native to v1.6.7 (#1305)
• 7737fc6 refactor: simplify pipe() declaration (#1304)
• 45a78ff chore: update ts to v5.9.2 (#1303)
• 23da874 feat: add ProcessPromise.unpipe() (#1302)
• 9f195ee refactor: enhance ProcessPromise modifier types (#1301)
• 38da212 feat: enable many to one piping (#1300)
• e18fe85 chore: bump version to v8.8.0 (#1299)
• c9d6511 feat: expose internal deps versions (#1298)
• 2a9e46f feat: let piping of rejected processes (#1296)
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