angular-cn/dev-infra/format/formatters/prettier.ts

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/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import {join} from 'path';
import {exec} from 'shelljs';
import {error} from '../../utils/console';
import {Formatter} from './base-formatter';
/**
* Formatter for running prettier against Typescript and Javascript files.
*/
export class Prettier extends Formatter {
name = 'prettier';
binaryFilePath = join(this.git.baseDir, 'node_modules/.bin/prettier');
defaultFileMatcher = ['**/*.{t,j}s'];
/**
* The configuration path of the prettier config, obtained during construction to prevent needing
* to discover it repeatedly for each execution.
*/
private configPath =
this.config['prettier'] ? exec(`${this.binaryFilePath} --find-config-path .`).trim() : '';
actions = {
check: {
commandFlags: `--config ${this.configPath} --check`,
callback:
(_: string, code: number, stdout: string) => {
return code !== 0;
},
},
format: {
commandFlags: `--config ${this.configPath} --write`,
callback:
(file: string, code: number, _: string, stderr: string) => {
if (code !== 0) {
error(`Error running prettier on: ${file}`);
error(stderr);
error();
return true;
}
return false;
},
},
};
}