forked from defunkt/toes
36 lines
767 B
TypeScript
36 lines
767 B
TypeScript
export async function withPager(fn: () => Promise<void> | void): Promise<void> {
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if (!process.stdout.isTTY) {
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await fn()
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return
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}
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const lines: string[] = []
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const originalLog = console.log
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console.log = (...args: unknown[]) => {
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lines.push(args.map(a => typeof a === 'string' ? a : String(a)).join(' '))
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}
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try {
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await fn()
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} finally {
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console.log = originalLog
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}
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if (lines.length === 0) return
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const text = lines.join('\n') + '\n'
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const rows = process.stdout.rows || 24
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const lineCount = text.split('\n').length - 1
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if (lineCount > rows) {
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Bun.spawnSync(['less', '-R'], {
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stdin: Buffer.from(text),
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stdout: 'inherit',
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stderr: 'inherit',
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})
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} else {
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process.stdout.write(text)
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}
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}
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