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53 lines
1.3 KiB
JavaScript
53 lines
1.3 KiB
JavaScript
"use strict";
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const Promise = require("bluebird");
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const memoizee = require("memoizee");
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const fs = Promise.promisifyAll(require("fs"));
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const treecutter = require("../../packages/treecutter");
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const findmnt = require("../../packages/exec-findmnt");
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const shallowMerge = require("../../packages/shallow-merge");
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const All = require("../../packages/graphql-interface/symbols/all");
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module.exports = function () {
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let findmntOnce = memoizee(() => {
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return Promise.try(() => {
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return findmnt();
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}).then((mounts) => {
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return treecutter.flatten(mounts);
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}).map((mount) => {
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if (mount.sourceDevice?.startsWith("/")) {
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return Promise.try(() => {
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return fs.realpathAsync(mount.sourceDevice);
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}).then((actualSourcePath) => {
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return shallowMerge(mount, {
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sourceDevice: actualSourcePath
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});
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});
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} else {
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return mount;
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}
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}).then((list) => {
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let tree = treecutter.rebuild(list);
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return {
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tree: tree,
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list: list
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};
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});
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});
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return function (mountpoints) {
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return Promise.try(() => {
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return findmntOnce();
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}).then(({tree, list}) => {
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return mountpoints.map((mountpoint) => {
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if (mountpoint === All) {
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return tree;
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} else {
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return list.find((mount) => mount.mountpoint === mountpoint);
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}
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});
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});
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};
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};
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