55 lines
1.6 KiB
JavaScript
55 lines
1.6 KiB
JavaScript
/**
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* Pear often runs without `process.stdin` / `process.stdout`; Holepunch uses `bare-stdio`
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* on fds 0–2 (same idea as pear-terminal's stdio singleton).
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*/
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import { bindReplDebugStream, isReplDebug, replDbg } from './debug-repl.js'
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/**
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* @returns {Promise<{ stdin: import('stream').Readable | null, stdout: import('stream').Writable | null }>}
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*/
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export async function resolveStdio() {
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const p = globalThis.process
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if (p?.stdin && p?.stdout) {
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if (isReplDebug()) {
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bindReplDebugStream(p.stdout)
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replDbg(
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'resolve-stdio',
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'process stdin/stdout',
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JSON.stringify({
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stdinIsTTY: p.stdin.isTTY,
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stdoutColumns: p.stdout.columns,
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hasCursorTo: typeof p.stdout.cursorTo,
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hasClearLine: typeof p.stdout.clearLine
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})
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)
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}
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return { stdin: p.stdin, stdout: p.stdout }
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}
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try {
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const mod = await import('bare-stdio')
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const io = mod.default?.in ? mod.default : mod
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if (io?.in && io?.out) {
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if (isReplDebug()) {
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bindReplDebugStream(io.out)
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replDbg(
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'resolve-stdio',
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'bare-stdio',
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JSON.stringify({
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stdinIsTTY: io.in.isTTY,
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stdoutColumns: io.out.columns,
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hasCursorTo: typeof io.out.cursorTo,
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hasClearLine: typeof io.out.clearLine
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})
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)
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}
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return { stdin: io.in, stdout: io.out }
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}
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} catch (e) {
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if (isReplDebug())
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replDbg('resolve-stdio', 'bare-stdio unavailable', String(e))
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}
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if (isReplDebug()) replDbg('resolve-stdio', 'no stdin/stdout')
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return { stdin: null, stdout: null }
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}
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