38 lines
906 B
TypeScript
38 lines
906 B
TypeScript
import { readFile, writeFile } from 'fs';
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import { isNil } from 'lodash';
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import { promisify } from 'util';
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export const FILE_ENCODING = 'utf-8';
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export const readFileSync = promisify(readFile);
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export const writeFileSync = promisify(writeFile);
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export async function loadSource(path: string): Promise<string> {
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if (path === '-') {
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return readFileSync(0, {
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encoding: FILE_ENCODING,
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});
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} else {
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return readFileSync(path, {
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encoding: FILE_ENCODING,
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});
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}
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}
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export async function writeSource(path: string, data: string): Promise<void> {
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if (path === '-') {
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return new Promise((res, rej) => {
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process.stdout.write(data, (err: Error | null | undefined) => {
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if (isNil(err)) {
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res();
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} else {
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rej(err);
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}
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});
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});
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} else {
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return writeFileSync(path, data, {
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encoding: FILE_ENCODING,
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});
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}
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}
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