69 lines
2.3 KiB
JavaScript
69 lines
2.3 KiB
JavaScript
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import { readFileSync, writeFileSync } from "node:fs";
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/** Find the [ ... ] range of `export const <arrayName> = [ ... ]`. */
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function blockRange(src, arrayName) {
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const marker = `export const ${arrayName} = [`;
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const start = src.indexOf(marker);
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if (start === -1) return null;
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const open = src.indexOf("[", start);
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let depth = 0;
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let i = open;
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for (; i < src.length; i++) {
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if (src[i] === "[") depth++;
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else if (src[i] === "]") {
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depth--;
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if (depth === 0) break;
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}
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}
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return { open, close: i };
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}
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function slugsIn(src, arrayName) {
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const r = blockRange(src, arrayName);
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if (!r) return new Set();
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const block = src.slice(r.open, r.close);
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const out = new Set();
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for (const m of block.matchAll(/slug:\s*["']([^"']+)["']/g)) out.add(m[1]);
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return out;
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}
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export function readSlugs(file) {
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const src = readFileSync(file, "utf8");
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return {
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authors: slugsIn(src, "authors"),
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categories: slugsIn(src, "categories"),
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tags: slugsIn(src, "tags"),
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};
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}
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/** Insert { slug, name } as the first element of the named array if slug is absent. */
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export function ensureEntry(file, arrayName, slug, name) {
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let src = readFileSync(file, "utf8");
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if (slugsIn(src, arrayName).has(slug)) return false;
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const r = blockRange(src, arrayName);
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if (!r) throw new Error(`Array ${arrayName} not found in ${file}`);
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const entry = `\n { slug: ${JSON.stringify(slug)}, name: ${JSON.stringify(name)} },`;
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src = src.slice(0, r.open + 1) + entry + src.slice(r.open + 1);
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writeFileSync(file, src);
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return true;
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}
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/** Insert a full author object if the slug is absent. author = {slug,name,bio,longBio,avatar} */
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export function ensureAuthor(file, author) {
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let src = readFileSync(file, "utf8");
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if (slugsIn(src, "authors").has(author.slug)) return false;
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const r = blockRange(src, "authors");
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if (!r) throw new Error(`authors array not found in ${file}`);
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const obj =
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`\n {\n` +
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` slug: ${JSON.stringify(author.slug)},\n` +
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` name: ${JSON.stringify(author.name)},\n` +
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` bio: ${JSON.stringify(author.bio || "")},\n` +
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` longBio: ${JSON.stringify(author.longBio || author.bio || "")},\n` +
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` avatar: ${JSON.stringify(author.avatar || "")},\n` +
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` },`;
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src = src.slice(0, r.open + 1) + obj + src.slice(r.open + 1);
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writeFileSync(file, src);
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return true;
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}
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