38 lines
969 B
TypeScript
38 lines
969 B
TypeScript
import { nodeUtil, toml } from "./dependencies.ts";
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export function stringifyJsonPretty(input: unknown): string {
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return JSON.stringify(input, null, 2);
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}
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export async function runAndReturnStdout(
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options: Deno.RunOptions,
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): Promise<string> {
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const process = Deno.run({ stdout: "piped", ...options });
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return new nodeUtil.TextDecoder().decode(await process.output());
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}
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export function tomlFrontmatter<T>(
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data: string,
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): [T, string] {
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const startMarker = "---toml\n";
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const endMarker = "\n---\n";
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let start = data.indexOf(startMarker);
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let end = data.indexOf(endMarker);
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if (start === -1 || end === -1) {
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throw new Error("Missing frontmatter");
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}
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if (start !== 0) {
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throw new Error("Frontmatter not at beginning of data");
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}
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start += startMarker.length;
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const frontmatter = data.slice(start, end);
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end += endMarker.length;
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const extra = data.slice(end);
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return [toml.parse(frontmatter) as T, extra.trimStart()];
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}
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