@kui-shell/core
Version:
An Electron-based shell for cloud-native development
60 lines • 2.57 kB
JavaScript
/*
* Copyright 2018 The Kubernetes Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
import Debug from 'debug';
const debug = Debug('core/main/headless-support');
debug('loading');
/**
* This supports commads streaming their output to the console
*
* @see repl.ts for use of createOutputStream
* @see cli.ts for the webapp implementation
*
*/
export const streamTo = (which) => __awaiter(void 0, void 0, void 0, function* () {
const [{ clearLine, cursorTo }, { print }] = yield Promise.all([
import('node:readline'),
import('./headless-pretty-print')
]);
const stdout = process[which];
return (response, killLine) => {
debug('streaming response', killLine);
if (killLine) {
clearLine(stdout, 0);
cursorTo(stdout, 0, null);
}
print(response, which === 'stdout' ? console.log : console.error, process[which]);
if (!killLine) {
if (typeof response !== 'string' || !/\n$/.test(response)) {
if (which === 'stdout') {
// why only stdout? a legacy of an earlier bad decision.
// see https://github.com/kubernetes-sigs/kui/issues/7297
stdout.write('\n');
}
}
}
return Promise.resolve();
};
});
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