snapshot of https://github.com/tldraw/tldraw.git (main, 2026-09-23; blobs > 131072B omitted)

internal/scripts/lib/file.ts

@@ -0,0 +1,90 @@
+import { existsSync, readFileSync } from 'fs'
+import { readFile, writeFile as writeFileUnchecked } from 'fs/promises'
+import { dirname, join, relative } from 'path'
+import { fileURLToPath } from 'url'
+import json5 from 'json5'
+import { format } from 'oxfmt'
+import { nicelog } from './nicelog'
+
+const __filename = fileURLToPath(import.meta.url)
+const __dirname = dirname(__filename)
+export const REPO_ROOT = join(__dirname, '../../..')
+
+const _rootPackageJsonPath = join(REPO_ROOT, 'package.json')
+if (!existsSync(_rootPackageJsonPath)) {
+	throw new Error('expected to find package.json in REPO_ROOT')
+}
+const _rootPackageJson = JSON.parse(readFileSync(_rootPackageJsonPath, 'utf8'))
+if (_rootPackageJson['name'] !== '@tldraw/monorepo') {
+	throw new Error('expected to find @tldraw/monorepo in REPO_ROOT package.json')
+}
+
+export async function readJsonIfExists(file: string) {
+	const fileContents = await readFileIfExists(file)
+	if (fileContents === null) {
+		return null
+	}
+	return json5.parse(fileContents)
+}
+
+export async function readFileIfExists(file: string) {
+	try {
+		return await readFile(file, 'utf8')
+	} catch {
+		return null
+	}
+}
+
+const oxfmtConfig = json5.parse(readFileSync(join(REPO_ROOT, '.oxfmtrc.json'), 'utf8'))
+export async function writeCodeFile(
+	generator: string | null,
+	language: 'typescript' | 'javascript',
+	filePath: string,
+	code: string
+) {
+	const source = generator
+		? `
+				// This file is automatically generated by ${generator}.
+				// Do not edit manually. Or do, I'm a comment, not a cop.
+
+				${code}
+			`
+		: code
+	const ext = language === 'typescript' ? 'ts' : 'js'
+	const result = await format(`file.${ext}`, source, oxfmtConfig)
+	await writeStringFile(filePath, result.code)
+}
+
+export async function writeStringFile(filePath: string, contents: string) {
+	await writeFile(filePath, Buffer.from(contents, 'utf-8'))
+}
+
+export async function writeFile(filePath: string, contents: Buffer) {
+	if (process.env.CI && !process.env.ALLOW_REFRESH_ASSETS_CHANGES) {
+		let existingContents: Buffer | null = null
+		try {
+			existingContents = await readFile(filePath)
+		} catch {
+			// Ignore
+		}
+		if (existingContents && !existingContents.equals(contents)) {
+			nicelog(
+				`Asset file ${relative(
+					REPO_ROOT,
+					filePath
+				)} has changed. Please run this script again and commit the changes.`
+			)
+			nicelog('Contents before:')
+			nicelog(existingContents.toString('utf-8'))
+			nicelog('\nContents after:')
+			nicelog(contents.toString('utf-8'))
+
+			process.exit(1)
+		}
+	}
+	await writeFileUnchecked(filePath, contents, 'utf-8')
+}
+
+export async function writeJsonFile(filePath: string, contents: unknown) {
+	await writeStringFile(filePath, JSON.stringify(contents, null, '\t') + '\n')
+}