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source dump of claude code
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2.3 kB · 77 lines
TypeScript
at main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778import { openSync } from 'fs'import { ReadStream } from 'tty'import type { RenderOptions } from '../ink.js'import { isEnvTruthy } from './envUtils.js'import { logError } from './log.js'
// Cached stdin override - computed once per processlet cachedStdinOverride: ReadStream | undefined | null = null
/** * Gets a ReadStream for /dev/tty when stdin is piped. * This allows interactive Ink rendering even when stdin is a pipe. * Result is cached for the lifetime of the process. */function getStdinOverride(): ReadStream | undefined { // Return cached result if already computed if (cachedStdinOverride !== null) { return cachedStdinOverride }
// No override needed if stdin is already a TTY if (process.stdin.isTTY) { cachedStdinOverride = undefined return undefined }
// Skip in CI environments if (isEnvTruthy(process.env.CI)) { cachedStdinOverride = undefined return undefined }
// Skip if running MCP (input hijacking breaks MCP) if (process.argv.includes('mcp')) { cachedStdinOverride = undefined return undefined }
// No /dev/tty on Windows if (process.platform === 'win32') { cachedStdinOverride = undefined return undefined }
// Try to open /dev/tty as an alternative input source try { const ttyFd = openSync('/dev/tty', 'r') const ttyStream = new ReadStream(ttyFd) // Explicitly set isTTY to true since we know /dev/tty is a TTY. // This is needed because some runtimes (like Bun's compiled binaries) // may not correctly detect isTTY on ReadStream created from a file descriptor. ttyStream.isTTY = true cachedStdinOverride = ttyStream return cachedStdinOverride } catch (err) { logError(err as Error) cachedStdinOverride = undefined return undefined }}
/** * Returns base render options for Ink, including stdin override when needed. * Use this for all render() calls to ensure piped input works correctly. * * @param exitOnCtrlC - Whether to exit on Ctrl+C (usually false for dialogs) */export function getBaseRenderOptions( exitOnCtrlC: boolean = false,): RenderOptions { const stdin = getStdinOverride() const options: RenderOptions = { exitOnCtrlC } if (stdin) { options.stdin = stdin } return options}