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node_modules/cross-spawn/CHANGELOG.md

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+## 5.0.0 - 2016-10-30
+
+- Add support for `options.shell`
+- Improve parsing of shebangs by using [`shebang-command`](https://github.com/kevva/shebang-command) module
+- Refactor some code to make it more clear
+- Update README caveats

node_modules/cross-spawn/LICENSE

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+Copyright (c) 2014 IndigoUnited
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

node_modules/cross-spawn/README.md

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+# cross-spawn
+
+[![NPM version][npm-image]][npm-url] [![Downloads][downloads-image]][npm-url] [![Build Status][travis-image]][travis-url] [![Build status][appveyor-image]][appveyor-url] [![Dependency status][david-dm-image]][david-dm-url] [![Dev Dependency status][david-dm-dev-image]][david-dm-dev-url]
+
+[npm-url]:https://npmjs.org/package/cross-spawn
+[downloads-image]:http://img.shields.io/npm/dm/cross-spawn.svg
+[npm-image]:http://img.shields.io/npm/v/cross-spawn.svg
+[travis-url]:https://travis-ci.org/IndigoUnited/node-cross-spawn
+[travis-image]:http://img.shields.io/travis/IndigoUnited/node-cross-spawn/master.svg
+[appveyor-url]:https://ci.appveyor.com/project/satazor/node-cross-spawn
+[appveyor-image]:https://img.shields.io/appveyor/ci/satazor/node-cross-spawn/master.svg
+[david-dm-url]:https://david-dm.org/IndigoUnited/node-cross-spawn
+[david-dm-image]:https://img.shields.io/david/IndigoUnited/node-cross-spawn.svg
+[david-dm-dev-url]:https://david-dm.org/IndigoUnited/node-cross-spawn#info=devDependencies
+[david-dm-dev-image]:https://img.shields.io/david/dev/IndigoUnited/node-cross-spawn.svg
+
+A cross platform solution to node's spawn and spawnSync.
+
+
+## Installation
+
+`$ npm install cross-spawn`
+
+If you are using `spawnSync` on node 0.10 or older, you will also need to install `spawn-sync`:
+
+`$ npm install spawn-sync`
+
+
+## Why
+
+Node has issues when using spawn on Windows:
+
+- It ignores [PATHEXT](https://github.com/joyent/node/issues/2318)
+- It does not support [shebangs](http://pt.wikipedia.org/wiki/Shebang)
+- No `options.shell` support on node < v6
+- It does not allow you to run `del` or `dir`
+
+All these issues are handled correctly by `cross-spawn`.
+There are some known modules, such as [win-spawn](https://github.com/ForbesLindesay/win-spawn), that try to solve this but they are either broken or provide faulty escaping of shell arguments.
+
+
+## Usage
+
+Exactly the same way as node's [`spawn`](https://nodejs.org/api/child_process.html#child_process_child_process_spawn_command_args_options) or [`spawnSync`](https://nodejs.org/api/child_process.html#child_process_child_process_spawnsync_command_args_options), so it's a drop in replacement.
+
+
+```js
+var spawn = require('cross-spawn');
+
+// Spawn NPM asynchronously
+var child = spawn('npm', ['list', '-g', '-depth', '0'], { stdio: 'inherit' });
+
+// Spawn NPM synchronously
+var results = spawn.sync('npm', ['list', '-g', '-depth', '0'], { stdio: 'inherit' });
+```
+
+
+## Caveats
+
+#### `options.shell` as an alternative to `cross-spawn`
+
+Starting from node v6, `spawn` has a `shell` option that allows you run commands from within a shell. This new option solves most of the problems that `cross-spawn` attempts to solve, but:
+
+- It's not supported in node < v6
+- It has no support for shebangs on Windows
+- You must manually escape the command and arguments which is very error prone, specially when passing user input
+
+If you are using the `shell` option to spawn a command in a cross platform way, consider using `cross-spawn` instead. You have been warned.
+
+
+#### Shebangs
+
+While `cross-spawn` handles shebangs on Windows, its support is limited: e.g.: it doesn't handle arguments after the path, e.g.: `#!/bin/bash -e`.
+
+Remember to always test your code on Windows!
+
+
+## Tests
+
+`$ npm test`
+
+
+## License
+
+Released under the [MIT License](http://www.opensource.org/licenses/mit-license.php).

node_modules/cross-spawn/index.js

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+'use strict';
+
+var cp = require('child_process');
+var parse = require('./lib/parse');
+var enoent = require('./lib/enoent');
+
+var cpSpawnSync = cp.spawnSync;
+
+function spawn(command, args, options) {
+    var parsed;
+    var spawned;
+
+    // Parse the arguments
+    parsed = parse(command, args, options);
+
+    // Spawn the child process
+    spawned = cp.spawn(parsed.command, parsed.args, parsed.options);
+
+    // Hook into child process "exit" event to emit an error if the command
+    // does not exists, see: https://github.com/IndigoUnited/node-cross-spawn/issues/16
+    enoent.hookChildProcess(spawned, parsed);
+
+    return spawned;
+}
+
+function spawnSync(command, args, options) {
+    var parsed;
+    var result;
+
+    if (!cpSpawnSync) {
+        try {
+            cpSpawnSync = require('spawn-sync');  // eslint-disable-line global-require
+        } catch (ex) {
+            throw new Error(
+                'In order to use spawnSync on node 0.10 or older, you must ' +
+                'install spawn-sync:\n\n' +
+                '  npm install spawn-sync --save'
+            );
+        }
+    }
+
+    // Parse the arguments
+    parsed = parse(command, args, options);
+
+    // Spawn the child process
+    result = cpSpawnSync(parsed.command, parsed.args, parsed.options);
+
+    // Analyze if the command does not exists, see: https://github.com/IndigoUnited/node-cross-spawn/issues/16
+    result.error = result.error || enoent.verifyENOENTSync(result.status, parsed);
+
+    return result;
+}
+
+module.exports = spawn;
+module.exports.spawn = spawn;
+module.exports.sync = spawnSync;
+
+module.exports._parse = parse;
+module.exports._enoent = enoent;

node_modules/cross-spawn/lib/enoent.js

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+'use strict';
+
+var isWin = process.platform === 'win32';
+var resolveCommand = require('./util/resolveCommand');
+
+var isNode10 = process.version.indexOf('v0.10.') === 0;
+
+function notFoundError(command, syscall) {
+    var err;
+
+    err = new Error(syscall + ' ' + command + ' ENOENT');
+    err.code = err.errno = 'ENOENT';
+    err.syscall = syscall + ' ' + command;
+
+    return err;
+}
+
+function hookChildProcess(cp, parsed) {
+    var originalEmit;
+
+    if (!isWin) {
+        return;
+    }
+
+    originalEmit = cp.emit;
+    cp.emit = function (name, arg1) {
+        var err;
+
+        // If emitting "exit" event and exit code is 1, we need to check if
+        // the command exists and emit an "error" instead
+        // See: https://github.com/IndigoUnited/node-cross-spawn/issues/16
+        if (name === 'exit') {
+            err = verifyENOENT(arg1, parsed, 'spawn');
+
+            if (err) {
+                return originalEmit.call(cp, 'error', err);
+            }
+        }
+
+        return originalEmit.apply(cp, arguments);
+    };
+}
+
+function verifyENOENT(status, parsed) {
+    if (isWin && status === 1 && !parsed.file) {
+        return notFoundError(parsed.original, 'spawn');
+    }
+
+    return null;
+}
+
+function verifyENOENTSync(status, parsed) {
+    if (isWin && status === 1 && !parsed.file) {
+        return notFoundError(parsed.original, 'spawnSync');
+    }
+
+    // If we are in node 10, then we are using spawn-sync; if it exited
+    // with -1 it probably means that the command does not exist
+    if (isNode10 && status === -1) {
+        parsed.file = isWin ? parsed.file : resolveCommand(parsed.original);
+
+        if (!parsed.file) {
+            return notFoundError(parsed.original, 'spawnSync');
+        }
+    }
+
+    return null;
+}
+
+module.exports.hookChildProcess = hookChildProcess;
+module.exports.verifyENOENT = verifyENOENT;
+module.exports.verifyENOENTSync = verifyENOENTSync;
+module.exports.notFoundError = notFoundError;

node_modules/cross-spawn/lib/parse.js

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+'use strict';
+
+var resolveCommand = require('./util/resolveCommand');
+var hasEmptyArgumentBug = require('./util/hasEmptyArgumentBug');
+var escapeArgument = require('./util/escapeArgument');
+var escapeCommand = require('./util/escapeCommand');
+var readShebang = require('./util/readShebang');
+
+var isWin = process.platform === 'win32';
+var skipShellRegExp = /\.(?:com|exe)$/i;
+
+// Supported in Node >= 6 and >= 4.8
+var supportsShellOption = parseInt(process.version.substr(1).split('.')[0], 10) >= 6 ||
+ parseInt(process.version.substr(1).split('.')[0], 10) === 4 && parseInt(process.version.substr(1).split('.')[1], 10) >= 8;
+
+function parseNonShell(parsed) {
+    var shebang;
+    var needsShell;
+    var applyQuotes;
+
+    if (!isWin) {
+        return parsed;
+    }
+
+    // Detect & add support for shebangs
+    parsed.file = resolveCommand(parsed.command);
+    parsed.file = parsed.file || resolveCommand(parsed.command, true);
+    shebang = parsed.file && readShebang(parsed.file);
+
+    if (shebang) {
+        parsed.args.unshift(parsed.file);
+        parsed.command = shebang;
+        needsShell = hasEmptyArgumentBug || !skipShellRegExp.test(resolveCommand(shebang) || resolveCommand(shebang, true));
+    } else {
+        needsShell = hasEmptyArgumentBug || !skipShellRegExp.test(parsed.file);
+    }
+
+    // If a shell is required, use cmd.exe and take care of escaping everything correctly
+    if (needsShell) {
+        // Escape command & arguments
+        applyQuotes = (parsed.command !== 'echo');  // Do not quote arguments for the special "echo" command
+        parsed.command = escapeCommand(parsed.command);
+        parsed.args = parsed.args.map(function (arg) {
+            return escapeArgument(arg, applyQuotes);
+        });
+
+        // Make use of cmd.exe
+        parsed.args = ['/d', '/s', '/c', '"' + parsed.command + (parsed.args.length ? ' ' + parsed.args.join(' ') : '') + '"'];
+        parsed.command = process.env.comspec || 'cmd.exe';
+        parsed.options.windowsVerbatimArguments = true;  // Tell node's spawn that the arguments are already escaped
+    }
+
+    return parsed;
+}
+
+function parseShell(parsed) {
+    var shellCommand;
+
+    // If node supports the shell option, there's no need to mimic its behavior
+    if (supportsShellOption) {
+        return parsed;
+    }
+
+    // Mimic node shell option, see: https://github.com/nodejs/node/blob/b9f6a2dc059a1062776133f3d4fd848c4da7d150/lib/child_process.js#L335
+    shellCommand = [parsed.command].concat(parsed.args).join(' ');
+
+    if (isWin) {
+        parsed.command = typeof parsed.options.shell === 'string' ? parsed.options.shell : process.env.comspec || 'cmd.exe';
+        parsed.args = ['/d', '/s', '/c', '"' + shellCommand + '"'];
+        parsed.options.windowsVerbatimArguments = true;  // Tell node's spawn that the arguments are already escaped
+    } else {
+        if (typeof parsed.options.shell === 'string') {
+            parsed.command = parsed.options.shell;
+        } else if (process.platform === 'android') {
+            parsed.command = '/system/bin/sh';
+        } else {
+            parsed.command = '/bin/sh';
+        }
+
+        parsed.args = ['-c', shellCommand];
+    }
+
+    return parsed;
+}
+
+// ------------------------------------------------
+
+function parse(command, args, options) {
+    var parsed;
+
+    // Normalize arguments, similar to nodejs
+    if (args && !Array.isArray(args)) {
+        options = args;
+        args = null;
+    }
+
+    args = args ? args.slice(0) : [];  // Clone array to avoid changing the original
+    options = options || {};
+
+    // Build our parsed object
+    parsed = {
+        command: command,
+        args: args,
+        options: options,
+        file: undefined,
+        original: command,
+    };
+
+    // Delegate further parsing to shell or non-shell
+    return options.shell ? parseShell(parsed) : parseNonShell(parsed);
+}
+
+module.exports = parse;

node_modules/cross-spawn/lib/util/escapeArgument.js

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+'use strict';
+
+function escapeArgument(arg, quote) {
+    // Convert to string
+    arg = '' + arg;
+
+    // If we are not going to quote the argument,
+    // escape shell metacharacters, including double and single quotes:
+    if (!quote) {
+        arg = arg.replace(/([()%!^<>&|;,"'\s])/g, '^$1');
+    } else {
+        // Sequence of backslashes followed by a double quote:
+        // double up all the backslashes and escape the double quote
+        arg = arg.replace(/(\\*)"/g, '$1$1\\"');
+
+        // Sequence of backslashes followed by the end of the string
+        // (which will become a double quote later):
+        // double up all the backslashes
+        arg = arg.replace(/(\\*)$/, '$1$1');
+
+        // All other backslashes occur literally
+
+        // Quote the whole thing:
+        arg = '"' + arg + '"';
+    }
+
+    return arg;
+}
+
+module.exports = escapeArgument;

node_modules/cross-spawn/lib/util/escapeCommand.js

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+'use strict';
+
+var escapeArgument = require('./escapeArgument');
+
+function escapeCommand(command) {
+    // Do not escape if this command is not dangerous..
+    // We do this so that commands like "echo" or "ifconfig" work
+    // Quoting them, will make them unaccessible
+    return /^[a-z0-9_-]+$/i.test(command) ? command : escapeArgument(command, true);
+}
+
+module.exports = escapeCommand;

node_modules/cross-spawn/lib/util/hasEmptyArgumentBug.js

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+'use strict';
+
+// See: https://github.com/IndigoUnited/node-cross-spawn/pull/34#issuecomment-221623455
+function hasEmptyArgumentBug() {
+    var nodeVer;
+
+    if (process.platform !== 'win32') {
+        return false;
+    }
+
+    nodeVer = process.version.substr(1).split('.').map(function (num) {
+        return parseInt(num, 10);
+    });
+
+    return (nodeVer[0] === 0 && nodeVer[1] < 12);
+}
+
+module.exports = hasEmptyArgumentBug();

node_modules/cross-spawn/lib/util/readShebang.js

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+'use strict';
+
+var fs = require('fs');
+var LRU = require('lru-cache');
+var shebangCommand = require('shebang-command');
+
+var shebangCache = new LRU({ max: 50, maxAge: 30 * 1000 });  // Cache just for 30sec
+
+function readShebang(command) {
+    var buffer;
+    var fd;
+    var shebang;
+
+    // Check if it is in the cache first
+    if (shebangCache.has(command)) {
+        return shebangCache.get(command);
+    }
+
+    // Read the first 150 bytes from the file
+    buffer = new Buffer(150);
+
+    try {
+        fd = fs.openSync(command, 'r');
+        fs.readSync(fd, buffer, 0, 150, 0);
+        fs.closeSync(fd);
+    } catch (e) { /* empty */ }
+
+    // Attempt to extract shebang (null is returned if not a shebang)
+    shebang = shebangCommand(buffer.toString());
+
+    // Store the shebang in the cache
+    shebangCache.set(command, shebang);
+
+    return shebang;
+}
+
+module.exports = readShebang;

node_modules/cross-spawn/lib/util/resolveCommand.js

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+'use strict';
+
+var path = require('path');
+var which = require('which');
+var LRU = require('lru-cache');
+
+var commandCache = new LRU({ max: 50, maxAge: 30 * 1000 });  // Cache just for 30sec
+
+function resolveCommand(command, noExtension) {
+    var resolved;
+
+    noExtension = !!noExtension;
+    resolved = commandCache.get(command + '!' + noExtension);
+
+    // Check if its resolved in the cache
+    if (commandCache.has(command)) {
+        return commandCache.get(command);
+    }
+
+    try {
+        resolved = !noExtension ?
+            which.sync(command) :
+            which.sync(command, { pathExt: path.delimiter + (process.env.PATHEXT || '') });
+    } catch (e) { /* empty */ }
+
+    commandCache.set(command + '!' + noExtension, resolved);
+
+    return resolved;
+}
+
+module.exports = resolveCommand;

node_modules/cross-spawn/package.json

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+{
+  "_from": "cross-spawn@^5.0.1",
+  "_id": "cross-spawn@5.1.0",
+  "_inBundle": false,
+  "_integrity": "sha1-6L0O/uWPz/b4+UUQoKVUu/ojVEk=",
+  "_location": "/cross-spawn",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "cross-spawn@^5.0.1",
+    "name": "cross-spawn",
+    "escapedName": "cross-spawn",
+    "rawSpec": "^5.0.1",
+    "saveSpec": null,
+    "fetchSpec": "^5.0.1"
+  },
+  "_requiredBy": [
+    "/execa"
+  ],
+  "_resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-5.1.0.tgz",
+  "_shasum": "e8bd0efee58fcff6f8f94510a0a554bbfa235449",
+  "_spec": "cross-spawn@^5.0.1",
+  "_where": "/Users/Luca_Schwan/Desktop/DSABot/node_modules/execa",
+  "author": {
+    "name": "IndigoUnited",
+    "email": "hello@indigounited.com",
+    "url": "http://indigounited.com"
+  },
+  "bugs": {
+    "url": "https://github.com/IndigoUnited/node-cross-spawn/issues/"
+  },
+  "bundleDependencies": false,
+  "dependencies": {
+    "lru-cache": "^4.0.1",
+    "shebang-command": "^1.2.0",
+    "which": "^1.2.9"
+  },
+  "deprecated": false,
+  "description": "Cross platform child_process#spawn and child_process#spawnSync",
+  "devDependencies": {
+    "@satazor/eslint-config": "^3.0.0",
+    "eslint": "^3.0.0",
+    "expect.js": "^0.3.0",
+    "glob": "^7.0.0",
+    "mkdirp": "^0.5.1",
+    "mocha": "^3.0.2",
+    "once": "^1.4.0",
+    "rimraf": "^2.5.0"
+  },
+  "files": [
+    "index.js",
+    "lib"
+  ],
+  "homepage": "https://github.com/IndigoUnited/node-cross-spawn#readme",
+  "keywords": [
+    "spawn",
+    "spawnSync",
+    "windows",
+    "cross",
+    "platform",
+    "path",
+    "ext",
+    "path-ext",
+    "path_ext",
+    "shebang",
+    "hashbang",
+    "cmd",
+    "execute"
+  ],
+  "license": "MIT",
+  "main": "index.js",
+  "name": "cross-spawn",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/IndigoUnited/node-cross-spawn.git"
+  },
+  "scripts": {
+    "lint": "eslint '{*.js,lib/**/*.js,test/**/*.js}'",
+    "test": "node test/prepare && mocha --bail test/test"
+  },
+  "version": "5.1.0"
+}