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86 lines
2.4 KiB
JavaScript
86 lines
2.4 KiB
JavaScript
"use strict";
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const Promise = require("bluebird");
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const path = require("path");
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const errorChain = require("error-chain");
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const createPegParser = require("../text-parser-pegjs");
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const execBinary = require("../exec-binary");
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const itemsToObject = require("../items-to-object");
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/* FIXME: Error handling, eg. device not found errors */
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// TODO: Handle this case: "Read NVMe Identify Controller failed: scsi error medium or hardware error (serious)" in a more specific manner
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let AttributesError = errorChain.create("AttributesError", {});
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let InfoError = errorChain.create("InfoError", {});
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function outputParser(parserPath) {
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return createPegParser({
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grammarFile: path.join(__dirname, parserPath)
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});
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}
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let attributesParser = outputParser("./parsers/commands/attributes.pegjs");
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let infoParser = outputParser("./parsers/commands/info.pegjs");
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let scanParser = outputParser("./parsers/commands/scan.pegjs");
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module.exports = {
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AttributesError: AttributesError,
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InfoError: InfoError,
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attributes: function ({ devicePath }) {
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return Promise.try(() => {
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return attributesParser;
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}).then((parser) => {
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return execBinary("smartctl", [devicePath])
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.asRoot()
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.withFlags({ attributes: true })
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.withAllowedExitCodes([ 0, 2 ])
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.requireOnStdout(parser)
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.execute();
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}).then((output) => {
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let { error, attributes } = output.result;
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if (error != null) {
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throw new AttributesError(`smartctl returned an error: ${error}`);
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} else {
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// NOTE: Ignore the header, for now
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return attributes;
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}
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});
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},
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info: function ({ devicePath }) {
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return Promise.try(() => {
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return infoParser;
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}).then((parser) => {
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return execBinary("smartctl", [devicePath])
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.asRoot()
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.withFlags({ info: true })
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.withAllowedExitCodes([ 0, 2 ])
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.requireOnStdout(parser)
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.execute();
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}).then((output) => {
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let { error, fields } = output.result;
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if (error != null) {
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throw new InfoError(`smartctl returned an error: ${error}`);
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} else {
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// NOTE: Ignore the header, for now
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return itemsToObject(fields);
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}
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});
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},
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scan: function () {
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return Promise.try(() => {
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return scanParser;
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}).then((parser) => {
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return execBinary("smartctl")
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.asRoot()
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.withFlags({ scan: true })
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.requireOnStdout(parser)
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.execute();
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}).then((output) => {
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// NOTE: Ignore the header, for now
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return output.result.devices;
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});
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}
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};
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