| 1 | import {promisify} from './lang/promise';
|
| 2 | import {writeFile} from 'fs';
|
| 3 |
|
| 4 | const writeFilePromise = promisify(writeFile);
|
| 5 |
|
| 6 | const DEFAULT_ENCODING = 'utf8';
|
| 7 |
|
| 8 | export class FileWriter {
|
| 9 |
|
| 10 | constructor(private readonly path: string,
|
| 11 | private append: boolean,
|
| 12 | private readonly encoding = DEFAULT_ENCODING) {
|
| 13 | }
|
| 14 |
|
| 15 | async write(string: string): Promise<void> {
|
| 16 | await writeFilePromise(this.path, string, this.getWriteOption());
|
| 17 | this.append = true;
|
| 18 | }
|
| 19 |
|
| 20 | private getWriteOption() {
|
| 21 | return {
|
| 22 | encoding: this.encoding,
|
| 23 | flag: this.append ? 'a' : 'w'
|
| 24 | };
|
| 25 | }
|
| 26 | }
|