Danijel Martinek
d5313f95ea
Two helpers for use by per-package generator actions: - assertOptionalPackageNotPresent — guards against double-scaffolding - addToTranspilePackages — idempotent alphabetical splice into next.config.mjs Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
45 lines
1.3 KiB
TypeScript
45 lines
1.3 KiB
TypeScript
import { existsSync, readFileSync, writeFileSync } from "node:fs";
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import { join } from "node:path";
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/**
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* Throws if a core package directory already exists. Used as the first action
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* in every per-package generator so re-running is safe.
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*/
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export function assertOptionalPackageNotPresent(
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name: string,
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cwd: string = process.cwd(),
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): void {
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const pkgRoot = join(cwd, "packages", name);
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if (existsSync(pkgRoot)) {
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throw new Error(
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`packages/${name}/ already exists — refusing to scaffold (delete it first if intentional)`,
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);
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}
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}
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/**
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* Inserts a package name into the transpilePackages array of a Next.js config
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* file, preserving alphabetical order. Idempotent.
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*/
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export function addToTranspilePackages(
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nextConfigPath: string,
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pkgName: string,
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): void {
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const source = readFileSync(nextConfigPath, "utf8");
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if (source.includes(`"${pkgName}"`)) return;
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const updated = source.replace(
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/(transpilePackages:\s*\[\s*)([\s\S]*?)(\s*\])/,
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(_match, open: string, body: string, close: string) => {
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const entries = body
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.split(",")
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.map((e) => e.trim())
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.filter(Boolean);
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entries.push(`"${pkgName}"`);
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entries.sort();
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const formatted = entries.map((e) => ` ${e}`).join(",\n");
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return `${open}\n${formatted},${close}`;
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},
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);
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writeFileSync(nextConfigPath, updated);
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}
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