rrdtool.ts/dist/util.js

RRDTool High Level library for Node.js written in TypeScript

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.parseInfo = exports.create = exports.now = void 0;
const merge_1 = __importDefault(require("lodash/merge"));
const db_1 = require("./db");
const proc_1 = __importDefault(require("./proc"));
const fs_1 = __importDefault(require("fs"));
const now = () => {
    return Math.floor(Date.now() / 1000);
};
exports.now = now;
const create = async (filename, definitions, options) => {
    if (!fs_1.default.existsSync(filename)) {
        await proc_1.default.create(filename, definitions, options);
    }
    return new db_1.RrdtoolDatabase(filename);
};
exports.create = create;
const parseInfo = (str) => {
    const obj = (props, value) => {
        if (props.length === 0)
            return value;
        const name = props[0];
        const index = Number(name);
        const v = props.length === 1 ? value : obj(props.slice(1), value);
        if (Number.isNaN(index)) {
            const o = {};
            o[name] = v;
            return o;
        }
        else {
            const o = [];
            o[index] = v;
            return o;
        }
    };
    const getValue = (str) => {
        if (str.startsWith('"') && str.endsWith('"') && str.length > 1) {
            return str.slice(1, str.length - 1);
        }
        if (str.toLowerCase() === "null")
            return null;
        return Number(str);
    };
    let info = {};
    const re = /([\w\[\]\.]+) =(.+)/g;
    str.replace(re, (_, name, value) => {
        const v = getValue(value.trim());
        if (!Number.isNaN(v) && v !== null) {
            const props = name.split(/[.\[\]]/).filter(s => s);
            info = (0, merge_1.default)(info, obj(props, v));
        }
        return "";
    });
    info["ds"] = [...Object.keys(info["ds"])].map(k => (Object.assign({ name: k }, info["ds"][k])));
    return info;
};
exports.parseInfo = parseInfo;