puppeteer-cluster
Version:
Cluster management for puppeteer
46 lines • 3.23 kB
JavaScript
;
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());
});
};
Object.defineProperty(exports, "__esModule", { value: true });
const CLEAR_LINE = '\x1B[K';
class Display {
constructor() {
this.lastLinesCount = 0;
this.linesCount = 0;
}
log(str) {
return __awaiter(this, void 0, void 0, function* () {
// We create an empty line at the start so that any console.log calls
// from within the script are above our output.
if (this.linesCount === 0) {
console.log(CLEAR_LINE); // erases the current line
this.linesCount += 1;
}
// Strip lines that are too long
const strToLog = str.substr(0, 78);
console.log(`${CLEAR_LINE}${strToLog}`);
this.linesCount += 1;
});
}
resetCursor() {
return __awaiter(this, void 0, void 0, function* () {
// move cursor up to draw over out output
process.stdout.write(`\x1B[${this.linesCount}A`);
this.lastLinesCount = this.linesCount;
this.linesCount = 0;
});
}
close() {
// move cursor down so that console output stays
process.stdout.write(`\x1B[${this.lastLinesCount}B`);
}
}
exports.default = Display;
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