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68 lines
1.5 KiB
JavaScript
68 lines
1.5 KiB
JavaScript
"use strict";
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const Promise = require("bluebird");
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const matchValue = require("match-value");
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const execBinary = require("../exec-binary");
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const parseIECBytes = require("../parse-bytes-iec");
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const createJSONParser = require("../text-parser-json");
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function parseBoolean(value) {
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if (typeof value === "boolean") {
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// Newer versions of `lsblk` correctly use boolean values
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return value;
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} else {
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return matchValue(value, {
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0: false,
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1: true
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});
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}
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}
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function mapType(value) {
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return matchValue(value, {
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part: "partition",
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disk: "disk",
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loop: "loopDevice",
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rom: "disk",
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lvm: "partition"
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});
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}
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function mapSubType(value) {
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return matchValue(value, {
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part: null,
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disk: null,
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loop: null,
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rom: "readOnlyMedia",
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lvm: "lvm"
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});
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}
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function mapDeviceList(devices) {
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return devices.map((device) => {
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return {
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name: device.name,
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path: device.path,
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type: mapType(device.type),
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subType: mapSubType(device.type),
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mountpoint: device.mountpoint,
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deviceNumber: device["maj:min"],
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removable: parseBoolean(device.rm),
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readOnly: parseBoolean(device.ro),
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size: parseIECBytes(device.size),
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children: (device.children != null) ? mapDeviceList(device.children) : []
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};
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});
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}
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module.exports = function lsblk() {
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return Promise.try(() => {
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return execBinary("lsblk")
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.withFlags({ json: true, "output-all": true })
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.requireOnStdout(createJSONParser())
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.execute();
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}).then((output) => {
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return mapDeviceList(output.result.blockdevices);
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});
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};
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