expo-atlas
Version:
Inspect bundle contents, on module level, from Metro
131 lines • 6.46 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());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (g && (g = 0, op[0] && (_ = 0)), _) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.appendJsonLine = exports.parseJsonLine = exports.forEachJsonLines = void 0;
var events_1 = __importDefault(require("events"));
var fs_1 = __importDefault(require("fs"));
var readline_1 = __importDefault(require("readline"));
var stream_1 = __importDefault(require("stream"));
var Disassembler_1 = require("stream-json/Disassembler");
var Stringer_1 = require("stream-json/Stringer");
/**
* Iterate through lines of a ndjson/jsonl file using streams.
* This won't parse the actual JSON but invokes the callback for each line.
*
* @note Line numbers starts at `1`
*/
function forEachJsonLines(filePath, callback) {
return __awaiter(this, void 0, void 0, function () {
var input, reader, lineNumber;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
input = fs_1.default.createReadStream(filePath);
reader = readline_1.default.createInterface({ input: input });
lineNumber = 1;
reader.on('error', function (error) {
throw error;
});
reader.on('line', function (contents) {
callback(contents, lineNumber++, reader);
});
return [4 /*yield*/, events_1.default.once(reader, 'close')];
case 1:
_a.sent();
return [2 /*return*/];
}
});
});
}
exports.forEachJsonLines = forEachJsonLines;
/**
* Parse a single line of a jsonl/ndjson file using streams.
* Once the line is found, iteration is stopped and the parsed JSON is returned.
*
* @note Line numbers starts at `1`
*/
function parseJsonLine(filePath, lineNumber) {
return __awaiter(this, void 0, void 0, function () {
var lineContent;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
lineContent = '';
return [4 /*yield*/, forEachJsonLines(filePath, function (content, line, reader) {
if (line === lineNumber) {
lineContent = content;
reader.close();
}
})];
case 1:
_a.sent();
if (!lineContent) {
throw new Error("Line ".concat(lineNumber, " not found in file: ").concat(filePath));
}
return [2 /*return*/, JSON.parse(lineContent)];
}
});
});
}
exports.parseJsonLine = parseJsonLine;
/** Append a single line of json data to a jsonl/ndjson file using streams. */
function appendJsonLine(filePath, data) {
return __awaiter(this, void 0, void 0, function () {
var input, output;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
input = stream_1.default.Readable.from([data], { objectMode: true });
output = fs_1.default.createWriteStream(filePath, { flags: 'a' });
input.pipe((0, Disassembler_1.disassembler)()).pipe((0, Stringer_1.stringer)()).pipe(output);
return [4 /*yield*/, events_1.default.once(output, 'finish')];
case 1:
_a.sent();
return [4 /*yield*/, fs_1.default.promises.appendFile(filePath, '\n', 'utf-8')];
case 2:
_a.sent();
return [2 /*return*/];
}
});
});
}
exports.appendJsonLine = appendJsonLine;
//# sourceMappingURL=jsonl.js.map