64 lines
1.8 KiB
JavaScript
64 lines
1.8 KiB
JavaScript
import { existsSync, mkdirSync } from "node:fs";
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import path from "node:path";
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import { spawnSync } from "node:child_process";
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import { fileURLToPath } from "node:url";
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const repoRoot = path.resolve(fileURLToPath(new URL("..", import.meta.url)));
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const filterPath = path.join(repoRoot, "scripts", "pandoc-filters", "semantic-blocks.lua");
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const preamblePath = path.join(repoRoot, "scripts", "pandoc-templates", "semantic-preamble.tex");
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function usage() {
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console.error("Usage: node scripts/export-pdf.mjs <post.md> [--out output.pdf]");
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}
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function parseArgs(argv) {
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const args = [...argv];
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const input = args.find((arg) => !arg.startsWith("--"));
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const outIndex = args.indexOf("--out");
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const output = outIndex >= 0 ? args[outIndex + 1] : "";
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return { input, output };
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}
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const { input, output } = parseArgs(process.argv.slice(2));
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if (!input) {
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usage();
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process.exit(2);
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}
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const inputPath = path.resolve(input);
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if (!existsSync(inputPath)) {
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console.error(`Input file not found: ${inputPath}`);
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process.exit(2);
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}
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const outputPath = path.resolve(
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output || path.join(path.dirname(inputPath), `${path.basename(inputPath, path.extname(inputPath))}.pdf`),
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);
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mkdirSync(path.dirname(outputPath), { recursive: true });
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const pandocArgs = [
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inputPath,
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"--from",
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"markdown+fenced_code_attributes+tex_math_dollars+tex_math_single_backslash+footnotes+raw_html",
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"--pdf-engine=lualatex",
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"--lua-filter",
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filterPath,
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"--include-in-header",
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preamblePath,
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"--output",
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outputPath,
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];
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const result = spawnSync("pandoc", pandocArgs, { stdio: "inherit" });
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if (result.error?.code === "ENOENT") {
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console.error("pandoc is not installed or is not on PATH. Install pandoc and a LuaLaTeX distribution first.");
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process.exit(127);
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}
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if (result.status !== 0) {
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process.exit(result.status ?? 1);
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}
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console.log(`Wrote ${outputPath}`);
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