datakit
Version:
Simple JavaScript toolkit for data transform across JSON, CSV and YAML.
176 lines • 9.03 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 };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.documentation = exports.main = void 0;
var io_1 = require("../lib/io");
var user_fn_1 = require("./lib/user-fn");
var verify_1 = require("../lib/verify");
var help_1 = require("./lib/help");
function main(argv) {
return __awaiter(this, void 0, void 0, function () {
var sortCriteria, lastSortDirection, keySelectorFn, sortDirection, nextArg, data;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
sortCriteria = [];
lastSortDirection = "ascending";
while (argv.length > 0) {
keySelectorFn = (0, user_fn_1.loadUserFn)(argv, "r => r.key");
sortDirection = void 0;
if (argv.length > 0) {
nextArg = argv[0];
if (nextArg === "ascending" || nextArg === "descending") {
sortDirection = argv.shift();
}
}
if (sortDirection !== undefined) {
lastSortDirection = sortDirection;
}
else {
sortDirection = lastSortDirection;
}
sortCriteria.push({
keySelectorFn: keySelectorFn,
direction: sortDirection,
});
}
return [4 /*yield*/, (0, io_1.inputData)(argv)];
case 1:
data = _a.sent();
(0, verify_1.verifyInputArray)(data, "orderBy");
data.sort(function (a, b) {
if (sortCriteria.length === 0) {
// No sort critera specified.
// Sort values directly in ascending order.
if (a === b) {
return 0;
}
else if (a > b) {
return 1;
}
else {
return -1;
}
}
else {
var _loop_1 = function (criteria) {
var keySelector = criteria.keySelectorFn;
var A = (0, user_fn_1.invokeUserFn)(function () { return keySelector.fn(a); }, keySelector.details);
var B = (0, user_fn_1.invokeUserFn)(function () { return keySelector.fn(b); }, keySelector.details);
var comparison = -1;
if (A === B) {
comparison = 0;
}
else if (A > B) {
comparison = 1;
}
if (criteria.direction === "descending") {
// Inverts the comparison.
comparison = -comparison;
}
if (comparison !== 0) {
return { value: comparison };
}
};
for (var _i = 0, sortCriteria_1 = sortCriteria; _i < sortCriteria_1.length; _i++) {
var criteria = sortCriteria_1[_i];
var state_1 = _loop_1(criteria);
if (typeof state_1 === "object")
return state_1.value;
}
}
return 0;
});
return [4 /*yield*/, (0, io_1.outputData)(argv, data)];
case 2:
_a.sent();
return [2 /*return*/];
}
});
});
}
exports.main = main;
exports.documentation = {
name: "orderBy",
desc: "Sorts the input dataset by the requested criteria and outputs the sorted dataset. Works a bit like `array.sort` in JavaScript, but really it's way more advanced.",
syntax: "orderBy (<sort-fn> [<sort-direction>])+ [<input-file>] [<output-file>]",
inputs: help_1.standardCmdInputs,
outputs: help_1.standardCmdOutputs,
args: [
{
name: "sort-fn",
desc: "A JavaScript function to select the sort key from each record of the input dataset. Specifying a file name will load the JavaScript code from the file.",
},
{
name: "sort-direction",
desc: "Optional sort direction that may be \"ascending\" or \"descending\". Defaults to \"ascending\".",
},
help_1.standardInputFileHelp,
help_1.standardOutputFileHelp,
],
examples: [
{
name: "Reads JSON data from standard input, sorts by email and writes to standard output",
cmd: 'command-that-produces-json | orderBy "record => record.email"',
},
{
name: "Reads data from a file, sorts by email and writes to standard output",
cmd: 'orderBy "record => record.email" input-file.csv ',
},
{
name: "Reads data from a file, sorts by email and writes output to another file",
cmd: 'orderBy "record => record.email" input-file.csv output-file.csv'
},
{
name: "Loads the sort function from a JavaScript file",
cmd: 'orderBy --file my-sort-fn.js input-file.csv',
},
{
name: "Reads JSON data from standard input, sorts by name and then by age (a nested sort) and writes to standard output",
cmd: 'orderBy "r => r.email" "r => r.age" - output-file.csv'
},
{
name: "Reads JSON data from standard input, sorts by age (oldest to youngest) and writes to standard output",
cmd: 'orderBy "r => r.age" descending - output-file.csv'
},
],
notes: [
"The sort function and sort direction can be stacked up to create nested levels of sorting."
]
};
//# sourceMappingURL=sort.js.map