Classify commands
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349
js/commands.js
349
js/commands.js
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@ -1,188 +1,187 @@
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const commands = {};
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// Constants
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commands.list = {};
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// Functions
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commands.cd = function (args) {
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return fs.cd(args[1]);
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};
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commands.clear = function () {
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terminal.clear();
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return ``;
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};
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commands.echo = function (args) {
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return args.slice(1).join(` `).replace(`hunter2`, `*******`);
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};
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commands.exit = function () {
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terminal.reset();
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return ``;
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};
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commands.help = function (args) {
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const command = (args[1] || ``).toLowerCase();
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const commandNames = Object.keys(commands.list);
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if (commandNames.indexOf(command) >= 0) {
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const info = commands.list[command];
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return "" +
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`${command} - ${info.summary}
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<b>Usage</b>
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${info.usage}
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<b>Description</b>
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${info.desc}`.trimLines();
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} else {
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const commandWidth = Math.max.apply(null, commandNames.map(it => it.length)) + 4;
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const commandEntries = commandNames.map(
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it => `${it.padEnd(commandWidth, ' ')}${commands.list[it].summary}`
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);
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return "" +
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`<b>List of commands</b>
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${commandEntries.join(`\n`)}
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Write "help [COMMAND]" for more information on a command.`.trimLines();
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}
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};
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commands.ls = function (args) {
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const files = fs.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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class Commands {
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constructor() {
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this._list = {
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clear: {
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fun: Commands.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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summary: `change directory`,
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usage: `cd [DIRECTORY]`,
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desc: "" +
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`Changes the current working directory to [DIRECTORY].
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If [DIRECTORY] is empty, nothing happens.`.trimLines()
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},
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echo: {
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fun: Commands.echo,
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summary: `display text`,
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usage: `echo [TEXT]`,
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desc: `Displays [TEXT].`.trimLines()
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},
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exit: {
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fun: Commands.exit,
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summary: `close session`,
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usage: `exit`,
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desc: `Closes the terminal session.`.trimLines()
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},
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help: {
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fun: this.help,
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summary: `display documentation`,
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usage: `help [COMMAND]`,
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desc: "" +
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`Displays help documentation for [COMMAND].
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If [COMMAND] is empty, a list of all commands is shown.`.trimLines()
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},
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ls: {
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fun: this.ls,
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summary: `list directory contents`,
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usage: `ls [DIRECTORY]`,
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desc: "" +
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`Displays the files and directories in [DIRECTORY].
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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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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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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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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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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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}
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};
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}
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const dirList = [];
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const fileList = [];
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Object.keys(files).sort().forEach(fileIndex => {
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const file = files[fileIndex];
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parse(input) {
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const args = input.split(` `);
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const command = (args[0] || ``).toLowerCase();
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if (typeof file === `string`) {
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fileList.push(file);
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if (Object.keys(this._list).indexOf(command) >= 0) {
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return this._list[command].fun.bind(this)(args);
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} else if (command.trim() === ``) {
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return ``;
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} else {
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dirList.push(`${fileIndex}/`);
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return `Unknown command '${args[0]}'`
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}
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});
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return dirList.concat(fileList).join(`\n`);
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};
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commands.mkdir = function (args) {
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return fs.mkdir(args[1]);
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};
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commands.pwd = function () {
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return fs.pwd;
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};
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commands.rm = function (args) {
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return fs.rm(args[1]);
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};
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commands.rmdir = function (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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path = args[2];
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force = true;
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} else {
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path = args[1];
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force = false;
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}
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return fs.rmdir(path, force);
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};
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// Init
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commands.list = {
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clear: {
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fun: commands.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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summary: `change directory`,
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usage: `cd [DIRECTORY]`,
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desc: "" +
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`Changes the current working directory to [DIRECTORY].
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If [DIRECTORY] is empty, nothing happens.`.trimLines()
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},
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echo: {
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fun: commands.echo,
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summary: `display text`,
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usage: `echo [TEXT]`,
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desc: `Displays [TEXT].`.trimLines()
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},
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exit: {
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fun: commands.exit,
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summary: `close session`,
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usage: `exit`,
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desc: `Closes the terminal session.`.trimLines()
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},
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help: {
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fun: commands.help,
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summary: `display documentation`,
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usage: `help [COMMAND]`,
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desc: "" +
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`Displays help documentation for [COMMAND].
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If [COMMAND] is empty, a list of all commands is shown.`.trimLines()
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},
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ls: {
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fun: commands.ls,
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summary: `list directory contents`,
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usage: `ls [DIRECTORY]`,
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desc: "" +
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`Displays the files and directories in [DIRECTORY].
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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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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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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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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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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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static cd(args) {
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return fs.cd(args[1]);
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}
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};
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// Functions
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commands.parse = function (input) {
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const args = input.split(` `);
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const command = (args[0] || ``).toLowerCase();
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if (Object.keys(commands.list).indexOf(command) >= 0) {
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return commands.list[command].fun(args);
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} else if (command.trim() === ``) {
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static clear() {
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Commands.clear();
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return ``;
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} else {
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return `Unknown command '${args[0]}'`
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}
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};
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static echo(args) {
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return args
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.slice(1).join(` `)
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.replace(`hunter2`, `*******`);
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}
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static exit() {
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terminal.reset();
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return ``;
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}
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help(args) {
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const command = (args[1] || ``).toLowerCase();
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const commandNames = Object.keys(this._list);
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if (commandNames.indexOf(command) >= 0) {
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const info = this._list[command];
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return "" +
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`${command} - ${info.summary}
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<b>Usage</b>
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${info.usage}
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<b>Description</b>
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${info.desc}`.trimLines();
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} else {
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const commandWidth = Math.max.apply(null, commandNames.map(it => it.length)) + 4;
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const commandEntries = commandNames.map(
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it => `${it.padEnd(commandWidth, ' ')}${this._list[it].summary}`
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);
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return "" +
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`<b>List of commands</b>
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${commandEntries.join(`\n`)}
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Write "help [COMMAND]" for more information on a command.`.trimLines();
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}
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}
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ls(args) {
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const files = fs.ls(args[1]);
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if (files === undefined) {
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return `The directory '${args[1]}' does not exist`;
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}
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const dirList = [];
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const fileList = [];
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Object.keys(files).sort().forEach(fileIndex => {
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const file = files[fileIndex];
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if (typeof file === `string`) {
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fileList.push(file);
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} else {
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dirList.push(`${fileIndex}/`);
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}
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});
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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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}
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static pwd() {
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return fs.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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}
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static 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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path = args[2];
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force = true;
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} else {
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path = args[1];
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force = false;
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}
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return fs.rmdir(path, force);
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}
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}
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const commands = new Commands();
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