chris
21ebb9667b
git-subtree-dir: estore git-subtree-mainline: 746868d720b9be1003a2f783b7a12d526d8eea60 git-subtree-split: e34dfc397c94025670baa2b73b482c01f3033a6a
15 lines
546 B
TypeScript
15 lines
546 B
TypeScript
import { writeFileSync, renameSync, mkdirSync, existsSync } from 'fs'
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import path from 'path'
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/**
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* Atomically write JSON to a file by writing to a temp file first, then
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* renaming it into place. Prevents partial writes from corrupting the file.
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*/
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export function atomicWriteJSON(filePath: string, data: unknown): void {
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const dir = path.dirname(filePath)
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if (!existsSync(dir)) mkdirSync(dir, { recursive: true })
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const tmp = `${filePath}.tmp`
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writeFileSync(tmp, JSON.stringify(data, null, 2), 'utf-8')
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renameSync(tmp, filePath)
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}
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