forked from tools/josh
Classify FileSystem
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GPG Key ID:
B1B567AF58D6EE0F
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@ -1,14 +1,17 @@
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class Commands {
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constructor() {
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constructor(terminal, fileSystem) {
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this._terminal = terminal;
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this._fileSystem = fileSystem;
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this._list = {
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clear: {
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fun: Commands.clear,
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fun: this.clear,
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summary: `clear terminal output`,
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usage: `clear`,
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desc: `Clears all previous terminal output.`.trimLines()
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},
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cd: {
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fun: Commands.cd,
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fun: this.cd,
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summary: `change directory`,
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usage: `cd [DIRECTORY]`,
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desc: "" +
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@ -44,25 +47,25 @@ class Commands {
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If [DIRECTORY] is empty, the files and directories in the current working directory are shown.`.trimLines()
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},
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mkdir: {
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fun: Commands.mkdir,
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fun: this.mkdir,
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summary: `create directory`,
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usage: `mkdir [DIRECTORY]`,
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desc: `Creates a directory with name [DIRECTORY].`.trimLines()
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},
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pwd: {
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fun: Commands.pwd,
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fun: this.pwd,
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summary: `print working directory`,
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usage: `pwd`,
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desc: `Displays the current working directory.`.trimLines()
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},
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rm: {
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fun: Commands.rm,
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fun: this.rm,
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summary: `remove file`,
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usage: `rm [-f | --force] FILE`,
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desc: `Removes FILE if it is a file.`.trimLines()
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},
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rmdir: {
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fun: Commands.rmdir,
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fun: this.rmdir,
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summary: `remove directory`,
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usage: `rmdir [-f | --force] DIR`,
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desc: `Removes DIR if it is a directory.`.trimLines()
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@ -85,12 +88,12 @@ class Commands {
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}
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static cd(args) {
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return fs.cd(args[1]);
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cd(args) {
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return this._fileSystem.cd(args[1]);
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}
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static clear() {
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Commands.clear();
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clear() {
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this._terminal.clear();
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return ``;
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}
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@ -135,7 +138,7 @@ class Commands {
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}
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ls(args) {
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const files = fs.ls(args[1]);
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const files = this._fileSystem.ls(args[1]);
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if (files === undefined) {
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return `The directory '${args[1]}' does not exist`;
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}
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@ -156,19 +159,19 @@ class Commands {
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return dirList.concat(fileList).join(`\n`);
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}
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static mkdir(args) {
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return fs.mkdir(args[1]);
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mkdir(args) {
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return this._fileSystem.mkdir(args[1]);
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}
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static pwd() {
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return fs.pwd;
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pwd() {
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return this._fileSystem.pwd;
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}
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static rm(args) {
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return fs.rm(args[1]);
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rm(args) {
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return this._fileSystem.rm(args[1]);
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}
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static rmdir(args) {
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rmdir(args) {
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let path;
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let force;
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if (args[1] === `-f` || args[1] === `--force`) {
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@ -179,9 +182,6 @@ class Commands {
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force = false;
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}
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return fs.rmdir(path, force);
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return this._fileSystem.rmdir(path, force);
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}
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}
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const commands = new Commands();
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468
js/fs.js
468
js/fs.js
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@ -1,245 +1,241 @@
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const fs = {};
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class FileSystem {
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constructor() {
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this._root = {
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personal: {
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steam: `<a href="https://steamcommunity.com/id/Waflix">steam</a>`,
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nukapedia: `<a href="http://fallout.wikia.com/wiki/User:FDekker">nukapedia</a>`
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},
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projects: {
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minor: {
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dice: `<a href="https://fwdekker.com/dice">dice_probabilities</a>`
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},
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randomness: `<a href="https://github.com/FWDekker/intellij-randomness">randomness</a>`,
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schaapi: `<a href="http://cafejojo.org/schaapi">schaapi</a>`
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},
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social: {
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github: `<a href="https://github.com/FWDekker/">github</a>`,
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stackoverflow: `<a href="https://stackoverflow.com/u/3307872">stackoverflow</a>`,
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linkedin: `<a href="https://www.linkedin.com/in/fwdekker/">linkedin</a>`
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},
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"resume.pdf": `<a href="https://fwdekker.com/resume.pdf">resume.pdf</a>`
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};
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this.pwd = `/`;
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// Layout
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fs.pwd = `/`;
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fs.root = {
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personal: {
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steam: `<a href="https://steamcommunity.com/id/Waflix">steam</a>`,
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nukapedia: `<a href="http://fallout.wikia.com/wiki/User:FDekker">nukapedia</a>`
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},
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projects: {
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minor: {
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dice: `<a href="https://fwdekker.com/dice">dice_probabilities</a>`
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},
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randomness: `<a href="https://github.com/FWDekker/intellij-randomness">randomness</a>`,
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schaapi: `<a href="http://cafejojo.org/schaapi">schaapi</a>`
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},
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social: {
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github: `<a href="https://github.com/FWDekker/">github</a>`,
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stackoverflow: `<a href="https://stackoverflow.com/u/3307872">stackoverflow</a>`,
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linkedin: `<a href="https://www.linkedin.com/in/fwdekker/">linkedin</a>`
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},
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"resume.pdf": `<a href="https://fwdekker.com/resume.pdf">resume.pdf</a>`
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};
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fs.files = fs.root;
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const visited = [];
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const queue = [this._root];
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this._root[`.`] = this._root;
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// Functions
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fs._absolutePath = function (path) {
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if (path.startsWith(`/`)) {
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return path;
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} else {
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return `${fs.pwd}/${path}`;
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}
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};
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fs._filePath = function (path) {
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return fs._normalisePath(path).split(`/`).slice(0, -1).slice(-1).join(`/`);
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};
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fs._getFile = function (path) {
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const abPath = fs._normalisePath(path);
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let file = fs.root;
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abPath.split(`/`).forEach(part => {
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if (part === ``) {
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return;
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}
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if (file === undefined) {
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return;
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}
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file = file[part];
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});
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return file;
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};
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fs._normalisePath = function (path) {
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return fs._sanitisePath(fs._absolutePath(path));
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};
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fs._parentPath = function (path) {
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return fs._normalisePath(path).split(`/`).slice(0, -1).join(`/`);
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};
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fs._sanitisePath = function (path) {
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const selfRegex = /\/\.\//; // Match `./`
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const upRegex = /(\/+)([^./]+)(\/+)(\.\.)(\/+)/; // Match `/directory/../
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const doubleRegex = /\/{2,}/; // Match `///`
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return path
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.replaceAll(selfRegex, `/`)
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.replaceAll(upRegex, `/`)
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.replaceAll(doubleRegex, `/`)
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.toString();
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};
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/**
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* Returns true iff {@code file} represents a directory.
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*
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* @param file {Object} an object from the file system
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* @returns {boolean} true iff {@code file} represents a directory
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*/
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fs.isDirectory = function (file) {
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return (file !== undefined && typeof file !== `string`);
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};
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/**
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* Returns true iff {@code file} represents a file.
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*
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* @param file {Object} an object from the file system
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* @returns {boolean} true iff {@code file} represents a file
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*/
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fs.isFile = function (file) {
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return (file !== undefined && typeof file === `string`);
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};
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/**
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* Changes the current directory to {@code path}, if it exists.
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*
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* @param path the absolute or relative path to change the current directory to
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* @returns {string} an empty string if the change was successful, or an error message explaining what went wrong
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*/
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fs.cd = function (path) {
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if (path === undefined) {
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return ``;
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}
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const file = fs._getFile(path);
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if (file === undefined || !fs.isDirectory(file)) {
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return `The directory '${path}' does not exist`;
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}
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fs.pwd = fs._normalisePath(path);
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fs.files = file;
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return ``;
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};
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/**
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* Returns the directory at {@code path}, or the current directory if no path is given.
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*
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* @param path {string} the absolute or relative path to the directory to return
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* @returns {Object} the directory at {@code path}, or the current directory if no path is given
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*/
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fs.ls = function (path) {
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path = (path || fs.pwd);
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return fs._getFile(path);
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};
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/**
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* Creates an empty directory in the file system.
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*
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* @param path {string} the absolute or relative path to the directory to create
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* @returns {string} an empty string if the removal was successful, or a message explaining what went wrong
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*/
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fs.mkdir = function (path) {
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const parentDirName = fs._parentPath(path);
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const childDirName = fs._filePath(path);
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const parentDir = fs._getFile(parentDirName);
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if (!fs.isDirectory(parentDir)) {
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return `The directory '${parentDirName}' does not exist`;
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}
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if (parentDir[childDirName] !== undefined) {
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return `The directory '${childDirName}' already exists`;
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}
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parentDir[childDirName] = {};
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parentDir[childDirName][`.`] = parentDir[childDirName];
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parentDir[childDirName][`..`] = parentDir;
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return ``;
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};
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/**
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* Resets navigation in the file system.
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*/
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fs.reset = function () {
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fs.pwd = `/`;
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fs.files = fs.root;
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};
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/**
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* Removes a file from the file system.
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*
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* @param path {string} the absolute or relative path to the file to be removed
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* @returns {string} an empty string if the removal was successful, or a message explaining what went wrong
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*/
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fs.rm = function (path) {
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const dirName = fs._parentPath(path);
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const fileName = fs._filePath(path);
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const dir = fs._getFile(dirName);
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if (!fs.isDirectory(dir)) {
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return `The directory '${dirName}' does not exist`;
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}
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const file = dir[fileName];
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if (!fs.isFile(file)) {
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return `The file '${fileName}' does not exist`;
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}
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delete dir[fileName];
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return ``;
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};
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/**
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* Removes a directory from the file system.
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*
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* @param path {string} the absolute or relative path to the directory to be removed
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* @param force {boolean} true iff the directory should be removed regardless of whether it is empty
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* @returns {string} an empty string if the removal was successful, or a message explaining what went wrong
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*/
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fs.rmdir = function (path, force) {
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force = (force || false);
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const parentDirName = fs._parentPath(path);
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const childDirName = fs._filePath(path);
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const parentDir = fs._getFile(parentDirName);
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if (!fs.isDirectory(parentDir)) {
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return `The directory '${parentDirName}' does not exist`;
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}
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const childDir = parentDir[childDirName];
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if (!fs.isDirectory(childDir)) {
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return `The directory '${childDirName}' does not exist`;
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}
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if (!force && Object.keys(childDir).length > 2) {
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return `The directory is not empty`;
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}
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delete parentDir[childDirName];
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return ``;
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};
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// Init
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(() => {
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const visited = [];
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const queue = [fs.files];
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fs.files[`.`] = fs.files;
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while (queue.length !== 0) {
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const next = queue.pop();
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if (visited.indexOf(next) >= 0) {
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continue;
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}
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visited.push(next);
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for (const key in next) {
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if (key === `.` || key === `..`) {
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while (queue.length !== 0) {
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const next = queue.pop();
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if (visited.indexOf(next) >= 0) {
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continue;
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}
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next[key][`.`] = next[key];
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next[key][`..`] = next;
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queue.push(next[key]);
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visited.push(next);
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for (const key in next) {
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if (key === `.` || key === `..` || FileSystem.isFile(next[key])) {
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continue;
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}
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next[key][`.`] = next[key];
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next[key][`..`] = next;
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queue.push(next[key]);
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}
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}
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}
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})();
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_absolutePath(path) {
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if (path.startsWith(`/`)) {
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return path;
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} else {
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return `${this.pwd}/${path}`;
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}
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}
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_filePath(path) {
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return this._normalisePath(path).split(`/`).slice(0, -1).slice(-1).join(`/`);
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}
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_getFile(path) {
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path = this._normalisePath(path);
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let file = this._root;
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path.split(`/`).forEach(part => {
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if (part === ``) {
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return;
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}
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if (file === undefined) {
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return;
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}
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file = file[part];
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});
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return file;
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}
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_normalisePath(path) {
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return FileSystem._sanitisePath(this._absolutePath(path));
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}
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_parentPath(path) {
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return this._normalisePath(path).split(`/`).slice(0, -1).join(`/`);
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}
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static _sanitisePath(path) {
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const selfRegex = /\/\.\//; // Match `./`
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const upRegex = /(\/+)([^./]+)(\/+)(\.\.)(\/+)/; // Match `/directory/../
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const doubleRegex = /\/{2,}/; // Match `///`
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return path
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.replaceAll(selfRegex, `/`)
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.replaceAll(upRegex, `/`)
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.replaceAll(doubleRegex, `/`)
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.toString();
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}
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/**
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* Returns true iff {@code file} represents a directory.
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*
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* @param file {Object} an object from the file system
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* @returns {boolean} true iff {@code file} represents a directory
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*/
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static isDirectory(file) {
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return (file !== undefined && typeof file !== `string`);
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}
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/**
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* Returns true iff {@code file} represents a file.
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*
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* @param file {Object} an object from the file system
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* @returns {boolean} true iff {@code file} represents a file
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*/
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static isFile(file) {
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return (file !== undefined && typeof file === `string`);
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}
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/**
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* Changes the current directory to {@code path}, if it exists.
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*
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* @param path the absolute or relative path to change the current directory to
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* @returns {string} an empty string if the change was successful, or an error message explaining what went wrong
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*/
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cd(path) {
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if (path === undefined) {
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return ``;
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}
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const file = this._getFile(path);
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if (file === undefined || !FileSystem.isDirectory(file)) {
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return `The directory '${path}' does not exist`;
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}
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this.pwd = this._normalisePath(path);
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this.files = file;
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return ``;
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}
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/**
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* Returns the directory at {@code path}, or the current directory if no path is given.
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*
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* @param path {string} the absolute or relative path to the directory to return
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* @returns {Object} the directory at {@code path}, or the current directory if no path is given
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*/
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ls(path) {
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path = (path || this.pwd);
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return this._getFile(path);
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}
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/**
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* Creates an empty directory in the file system.
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*
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* @param path {string} the absolute or relative path to the directory to create
|
||||
* @returns {string} an empty string if the removal was successful, or a message explaining what went wrong
|
||||
*/
|
||||
mkdir(path) {
|
||||
const parentDirName = this._parentPath(path);
|
||||
const childDirName = this._filePath(path);
|
||||
|
||||
const parentDir = this._getFile(parentDirName);
|
||||
if (!FileSystem.isDirectory(parentDir)) {
|
||||
return `The directory '${parentDirName}' does not exist`;
|
||||
}
|
||||
if (parentDir[childDirName] !== undefined) {
|
||||
return `The directory '${childDirName}' already exists`;
|
||||
}
|
||||
|
||||
parentDir[childDirName] = {};
|
||||
parentDir[childDirName][`.`] = parentDir[childDirName];
|
||||
parentDir[childDirName][`..`] = parentDir;
|
||||
return ``;
|
||||
}
|
||||
|
||||
/**
|
||||
* Resets navigation in the file system.
|
||||
*/
|
||||
reset() {
|
||||
this.pwd = `/`;
|
||||
this.files = this._root;
|
||||
}
|
||||
|
||||
/**
|
||||
* Removes a file from the file system.
|
||||
*
|
||||
* @param path {string} the absolute or relative path to the file to be removed
|
||||
* @returns {string} an empty string if the removal was successful, or a message explaining what went wrong
|
||||
*/
|
||||
rm(path) {
|
||||
const dirName = this._parentPath(path);
|
||||
const fileName = this._filePath(path);
|
||||
|
||||
const dir = this._getFile(dirName);
|
||||
if (!FileSystem.isDirectory(dir)) {
|
||||
return `The directory '${dirName}' does not exist`;
|
||||
}
|
||||
|
||||
const file = dir[fileName];
|
||||
if (!FileSystem.isFile(file)) {
|
||||
return `The file '${fileName}' does not exist`;
|
||||
}
|
||||
|
||||
delete dir[fileName];
|
||||
return ``;
|
||||
}
|
||||
|
||||
/**
|
||||
* Removes a directory from the file system.
|
||||
*
|
||||
* @param path {string} the absolute or relative path to the directory to be removed
|
||||
* @param force {boolean} true iff the directory should be removed regardless of whether it is empty
|
||||
* @returns {string} an empty string if the removal was successful, or a message explaining what went wrong
|
||||
*/
|
||||
rmdir(path, force) {
|
||||
force = (force || false);
|
||||
|
||||
const parentDirName = this._parentPath(path);
|
||||
const childDirName = this._filePath(path);
|
||||
|
||||
const parentDir = this._getFile(parentDirName);
|
||||
if (!FileSystem.isDirectory(parentDir)) {
|
||||
return `The directory '${parentDirName}' does not exist`;
|
||||
}
|
||||
|
||||
const childDir = parentDir[childDirName];
|
||||
if (!FileSystem.isDirectory(childDir)) {
|
||||
return `The directory '${childDirName}' does not exist`;
|
||||
}
|
||||
if (!force && Object.keys(childDir).length > 2) {
|
||||
return `The directory is not empty`;
|
||||
}
|
||||
|
||||
delete parentDir[childDirName];
|
||||
return ``;
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,3 +1,11 @@
|
|||
const asciiHeader = ` ________ _______ _ _
|
||||
| ____\\ \\ / / __ \\ | | | |
|
||||
| |__ \\ \\ /\\ / /| | | | ___| | _| | _____ _ __
|
||||
| __| \\ \\/ \\/ / | | | |/ _ \\ |/ / |/ / _ \\ '__|
|
||||
| | \\ /\\ / | |__| | __/ <| < __/ |
|
||||
|_| \\/ \\/ |_____/ \\___|_|\\_\\_|\\_\\___|_| `;
|
||||
|
||||
|
||||
String.prototype.replaceAll = function (regex, replacement) {
|
||||
let string = this;
|
||||
|
||||
|
|
|
|||
|
|
@ -1,11 +1,3 @@
|
|||
const asciiHeader = ` ________ _______ _ _
|
||||
| ____\\ \\ / / __ \\ | | | |
|
||||
| |__ \\ \\ /\\ / /| | | | ___| | _| | _____ _ __
|
||||
| __| \\ \\/ \\/ / | | | |/ _ \\ |/ / |/ / _ \\ '__|
|
||||
| | \\ /\\ / | |__| | __/ <| < __/ |
|
||||
|_| \\/ \\/ |_____/ \\___|_|\\_\\_|\\_\\___|_| `;
|
||||
|
||||
|
||||
class InputHistory {
|
||||
constructor() {
|
||||
this._history = [];
|
||||
|
|
@ -56,6 +48,9 @@ class Terminal {
|
|||
this._prefixDiv = prefixDiv;
|
||||
this._inputHistory = new InputHistory();
|
||||
|
||||
this._fs = new FileSystem();
|
||||
this._commands = new Commands(this, this._fs);
|
||||
|
||||
this._terminal.addEventListener("click", this._onclick.bind(this));
|
||||
this._terminal.addEventListener("keypress", this._onkeypress.bind(this));
|
||||
this._input.addEventListener("keydown", this._onkeydown.bind(this));
|
||||
|
|
@ -103,8 +98,8 @@ class Terminal {
|
|||
`.trimLines();
|
||||
}
|
||||
|
||||
static generatePrefix() {
|
||||
return `felix@fwdekker.com <span style="color: green;">${fs.pwd}</span>> `;
|
||||
generatePrefix() {
|
||||
return `felix@fwdekker.com <span style="color: green;">${this._fs.pwd}</span>> `;
|
||||
}
|
||||
|
||||
processInput(input) {
|
||||
|
|
@ -112,19 +107,19 @@ class Terminal {
|
|||
this.inputText = ``;
|
||||
this.outputText += `${this.prefixText}${input}\n`;
|
||||
|
||||
const output = commands.parse(input.trim());
|
||||
const output = this._commands.parse(input.trim());
|
||||
if (output !== ``) {
|
||||
this.outputText += output + `\n`;
|
||||
}
|
||||
|
||||
this.prefixText = Terminal.generatePrefix();
|
||||
this.prefixText = this.generatePrefix();
|
||||
}
|
||||
|
||||
reset() {
|
||||
fs.reset();
|
||||
this._fs.reset();
|
||||
|
||||
this.outputText = Terminal.generateHeader();
|
||||
this.prefixText = Terminal.generatePrefix();
|
||||
this.prefixText = this.generatePrefix();
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -153,6 +148,7 @@ class Terminal {
|
|||
}
|
||||
|
||||
|
||||
|
||||
let terminal;
|
||||
|
||||
addOnLoad(() => {
|
||||
|
|
|
|||
Loading…
Reference in New Issue