WIP - add extractor, generate snippet_data

node_modules/pngquant-bin/cli.js

@@ -0,0 +1,6 @@
+#!/usr/bin/env node
+'use strict';
+const execa = require('execa');
+const m = require('.');
+
+execa(m, process.argv.slice(2), {stdio: 'inherit'});

node_modules/pngquant-bin/index.js

@@ -0,0 +1,2 @@
+'use strict';
+module.exports = require('./lib').path();

node_modules/pngquant-bin/lib/index.js

@@ -0,0 +1,15 @@
+'use strict';
+const path = require('path');
+const BinWrapper = require('bin-wrapper');
+const pkg = require('../package.json');
+
+const url = `https://raw.githubusercontent.com/imagemin/pngquant-bin/v${pkg.version}/vendor/`;
+
+module.exports = new BinWrapper()
+	.src(`${url}macos/pngquant`, 'darwin')
+	.src(`${url}linux/x86/pngquant`, 'linux', 'x86')
+	.src(`${url}linux/x64/pngquant`, 'linux', 'x64')
+	.src(`${url}freebsd/x64/pngquant`, 'freebsd', 'x64')
+	.src(`${url}win/pngquant.exe`, 'win32')
+	.dest(path.resolve(__dirname, '../vendor'))
+	.use(process.platform === 'win32' ? 'pngquant.exe' : 'pngquant');

node_modules/pngquant-bin/lib/install.js

@@ -0,0 +1,29 @@
+'use strict';
+const path = require('path');
+const binBuild = require('bin-build');
+const log = require('logalot');
+const bin = require('.');
+
+bin.run(['--version']).then(() => {
+	log.success('pngquant pre-build test passed successfully');
+}).catch(err => {
+	log.warn(err.message);
+	log.warn('pngquant pre-build test failed');
+	log.info('compiling from source');
+
+	const libpng = process.platform === 'darwin' ? 'libpng' : 'libpng-dev';
+
+	binBuild.file(path.resolve(__dirname, '../vendor/source/pngquant.tar.gz'), [
+		'rm ./INSTALL',
+		`./configure --prefix="${bin.dest()}"`,
+		`make install BINPREFIX="${bin.dest()}"`
+	]).then(() => {
+		log.success('pngquant built successfully');
+	}).catch(err => {
+		err.message = `pngquant failed to build, make sure that ${libpng} is installed`;
+		log.error(err.stack);
+
+		// eslint-disable-next-line unicorn/no-process-exit
+		process.exit(1);
+	});
+});

node_modules/pngquant-bin/license

@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) Imagemin (github.com/imagemin)
+
+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/pngquant-bin/node_modules/execa/index.js

@@ -0,0 +1,366 @@
+'use strict';
+const path = require('path');
+const childProcess = require('child_process');
+const util = require('util');
+const crossSpawn = require('cross-spawn');
+const stripEof = require('strip-eof');
+const npmRunPath = require('npm-run-path');
+const isStream = require('is-stream');
+const _getStream = require('get-stream');
+const pFinally = require('p-finally');
+const onExit = require('signal-exit');
+const errname = require('./lib/errname');
+const stdio = require('./lib/stdio');
+
+const TEN_MEGABYTES = 1000 * 1000 * 10;
+
+function handleArgs(cmd, args, opts) {
+	let parsed;
+
+	opts = Object.assign({
+		extendEnv: true,
+		env: {}
+	}, opts);
+
+	if (opts.extendEnv) {
+		opts.env = Object.assign({}, process.env, opts.env);
+	}
+
+	if (opts.__winShell === true) {
+		delete opts.__winShell;
+		parsed = {
+			command: cmd,
+			args,
+			options: opts,
+			file: cmd,
+			original: {
+				cmd,
+				args
+			}
+		};
+	} else {
+		parsed = crossSpawn._parse(cmd, args, opts);
+	}
+
+	opts = Object.assign({
+		maxBuffer: TEN_MEGABYTES,
+		stripEof: true,
+		preferLocal: true,
+		localDir: parsed.options.cwd || process.cwd(),
+		encoding: 'utf8',
+		reject: true,
+		cleanup: true
+	}, parsed.options);
+
+	opts.stdio = stdio(opts);
+
+	if (opts.preferLocal) {
+		opts.env = npmRunPath.env(Object.assign({}, opts, {cwd: opts.localDir}));
+	}
+
+	if (opts.detached) {
+		// #115
+		opts.cleanup = false;
+	}
+
+	if (process.platform === 'win32' && path.basename(parsed.command) === 'cmd.exe') {
+		// #116
+		parsed.args.unshift('/q');
+	}
+
+	return {
+		cmd: parsed.command,
+		args: parsed.args,
+		opts,
+		parsed
+	};
+}
+
+function handleInput(spawned, opts) {
+	const input = opts.input;
+
+	if (input === null || input === undefined) {
+		return;
+	}
+
+	if (isStream(input)) {
+		input.pipe(spawned.stdin);
+	} else {
+		spawned.stdin.end(input);
+	}
+}
+
+function handleOutput(opts, val) {
+	if (val && opts.stripEof) {
+		val = stripEof(val);
+	}
+
+	return val;
+}
+
+function handleShell(fn, cmd, opts) {
+	let file = '/bin/sh';
+	let args = ['-c', cmd];
+
+	opts = Object.assign({}, opts);
+
+	if (process.platform === 'win32') {
+		opts.__winShell = true;
+		file = process.env.comspec || 'cmd.exe';
+		args = ['/s', '/c', `"${cmd}"`];
+		opts.windowsVerbatimArguments = true;
+	}
+
+	if (opts.shell) {
+		file = opts.shell;
+		delete opts.shell;
+	}
+
+	return fn(file, args, opts);
+}
+
+function getStream(process, stream, encoding, maxBuffer) {
+	if (!process[stream]) {
+		return null;
+	}
+
+	let ret;
+
+	if (encoding) {
+		ret = _getStream(process[stream], {
+			encoding,
+			maxBuffer
+		});
+	} else {
+		ret = _getStream.buffer(process[stream], {maxBuffer});
+	}
+
+	return ret.catch(err => {
+		err.stream = stream;
+		err.message = `${stream} ${err.message}`;
+		throw err;
+	});
+}
+
+function makeError(result, options) {
+	const stdout = result.stdout;
+	const stderr = result.stderr;
+
+	let err = result.error;
+	const code = result.code;
+	const signal = result.signal;
+
+	const parsed = options.parsed;
+	const joinedCmd = options.joinedCmd;
+	const timedOut = options.timedOut || false;
+
+	if (!err) {
+		let output = '';
+
+		if (Array.isArray(parsed.opts.stdio)) {
+			if (parsed.opts.stdio[2] !== 'inherit') {
+				output += output.length > 0 ? stderr : `\n${stderr}`;
+			}
+
+			if (parsed.opts.stdio[1] !== 'inherit') {
+				output += `\n${stdout}`;
+			}
+		} else if (parsed.opts.stdio !== 'inherit') {
+			output = `\n${stderr}${stdout}`;
+		}
+
+		err = new Error(`Command failed: ${joinedCmd}${output}`);
+		err.code = code < 0 ? errname(code) : code;
+	}
+
+	err.stdout = stdout;
+	err.stderr = stderr;
+	err.failed = true;
+	err.signal = signal || null;
+	err.cmd = joinedCmd;
+	err.timedOut = timedOut;
+
+	return err;
+}
+
+function joinCmd(cmd, args) {
+	let joinedCmd = cmd;
+
+	if (Array.isArray(args) && args.length > 0) {
+		joinedCmd += ' ' + args.join(' ');
+	}
+
+	return joinedCmd;
+}
+
+module.exports = (cmd, args, opts) => {
+	const parsed = handleArgs(cmd, args, opts);
+	const encoding = parsed.opts.encoding;
+	const maxBuffer = parsed.opts.maxBuffer;
+	const joinedCmd = joinCmd(cmd, args);
+
+	let spawned;
+	try {
+		spawned = childProcess.spawn(parsed.cmd, parsed.args, parsed.opts);
+	} catch (err) {
+		return Promise.reject(err);
+	}
+
+	let removeExitHandler;
+	if (parsed.opts.cleanup) {
+		removeExitHandler = onExit(() => {
+			spawned.kill();
+		});
+	}
+
+	let timeoutId = null;
+	let timedOut = false;
+
+	const cleanup = () => {
+		if (timeoutId) {
+			clearTimeout(timeoutId);
+			timeoutId = null;
+		}
+
+		if (removeExitHandler) {
+			removeExitHandler();
+		}
+	};
+
+	if (parsed.opts.timeout > 0) {
+		timeoutId = setTimeout(() => {
+			timeoutId = null;
+			timedOut = true;
+			spawned.kill(parsed.opts.killSignal);
+		}, parsed.opts.timeout);
+	}
+
+	const processDone = new Promise(resolve => {
+		spawned.on('exit', (code, signal) => {
+			cleanup();
+			resolve({code, signal});
+		});
+
+		spawned.on('error', err => {
+			cleanup();
+			resolve({error: err});
+		});
+
+		if (spawned.stdin) {
+			spawned.stdin.on('error', err => {
+				cleanup();
+				resolve({error: err});
+			});
+		}
+	});
+
+	function destroy() {
+		if (spawned.stdout) {
+			spawned.stdout.destroy();
+		}
+
+		if (spawned.stderr) {
+			spawned.stderr.destroy();
+		}
+	}
+
+	const handlePromise = () => pFinally(Promise.all([
+		processDone,
+		getStream(spawned, 'stdout', encoding, maxBuffer),
+		getStream(spawned, 'stderr', encoding, maxBuffer)
+	]).then(arr => {
+		const result = arr[0];
+		result.stdout = arr[1];
+		result.stderr = arr[2];
+
+		if (result.error || result.code !== 0 || result.signal !== null) {
+			const err = makeError(result, {
+				joinedCmd,
+				parsed,
+				timedOut
+			});
+
+			// TODO: missing some timeout logic for killed
+			// https://github.com/nodejs/node/blob/master/lib/child_process.js#L203
+			// err.killed = spawned.killed || killed;
+			err.killed = err.killed || spawned.killed;
+
+			if (!parsed.opts.reject) {
+				return err;
+			}
+
+			throw err;
+		}
+
+		return {
+			stdout: handleOutput(parsed.opts, result.stdout),
+			stderr: handleOutput(parsed.opts, result.stderr),
+			code: 0,
+			failed: false,
+			killed: false,
+			signal: null,
+			cmd: joinedCmd,
+			timedOut: false
+		};
+	}), destroy);
+
+	crossSpawn._enoent.hookChildProcess(spawned, parsed.parsed);
+
+	handleInput(spawned, parsed.opts);
+
+	spawned.then = (onfulfilled, onrejected) => handlePromise().then(onfulfilled, onrejected);
+	spawned.catch = onrejected => handlePromise().catch(onrejected);
+
+	return spawned;
+};
+
+module.exports.stdout = function () {
+	// TODO: set `stderr: 'ignore'` when that option is implemented
+	return module.exports.apply(null, arguments).then(x => x.stdout);
+};
+
+module.exports.stderr = function () {
+	// TODO: set `stdout: 'ignore'` when that option is implemented
+	return module.exports.apply(null, arguments).then(x => x.stderr);
+};
+
+module.exports.shell = (cmd, opts) => handleShell(module.exports, cmd, opts);
+
+module.exports.sync = (cmd, args, opts) => {
+	const parsed = handleArgs(cmd, args, opts);
+	const joinedCmd = joinCmd(cmd, args);
+
+	if (isStream(parsed.opts.input)) {
+		throw new TypeError('The `input` option cannot be a stream in sync mode');
+	}
+
+	const result = childProcess.spawnSync(parsed.cmd, parsed.args, parsed.opts);
+	result.code = result.status;
+
+	if (result.error || result.status !== 0 || result.signal !== null) {
+		const err = makeError(result, {
+			joinedCmd,
+			parsed
+		});
+
+		if (!parsed.opts.reject) {
+			return err;
+		}
+
+		throw err;
+	}
+
+	return {
+		stdout: handleOutput(parsed.opts, result.stdout),
+		stderr: handleOutput(parsed.opts, result.stderr),
+		code: 0,
+		failed: false,
+		signal: null,
+		cmd: joinedCmd,
+		timedOut: false
+	};
+};
+
+module.exports.shellSync = (cmd, opts) => handleShell(module.exports.sync, cmd, opts);
+
+module.exports.spawn = util.deprecate(module.exports, 'execa.spawn() is deprecated. Use execa() instead.');

node_modules/pngquant-bin/node_modules/execa/lib/errname.js

@@ -0,0 +1,39 @@
+'use strict';
+// Older verions of Node might not have `util.getSystemErrorName()`.
+// In that case, fall back to a deprecated internal.
+const util = require('util');
+
+let uv;
+
+if (typeof util.getSystemErrorName === 'function') {
+	module.exports = util.getSystemErrorName;
+} else {
+	try {
+		uv = process.binding('uv');
+
+		if (typeof uv.errname !== 'function') {
+			throw new TypeError('uv.errname is not a function');
+		}
+	} catch (err) {
+		console.error('execa/lib/errname: unable to establish process.binding(\'uv\')', err);
+		uv = null;
+	}
+
+	module.exports = code => errname(uv, code);
+}
+
+// Used for testing the fallback behavior
+module.exports.__test__ = errname;
+
+function errname(uv, code) {
+	if (uv) {
+		return uv.errname(code);
+	}
+
+	if (!(code < 0)) {
+		throw new Error('err >= 0');
+	}
+
+	return `Unknown system error ${code}`;
+}
+

node_modules/pngquant-bin/node_modules/execa/lib/stdio.js

@@ -0,0 +1,41 @@
+'use strict';
+const alias = ['stdin', 'stdout', 'stderr'];
+
+const hasAlias = opts => alias.some(x => Boolean(opts[x]));
+
+module.exports = opts => {
+	if (!opts) {
+		return null;
+	}
+
+	if (opts.stdio && hasAlias(opts)) {
+		throw new Error(`It's not possible to provide \`stdio\` in combination with one of ${alias.map(x => `\`${x}\``).join(', ')}`);
+	}
+
+	if (typeof opts.stdio === 'string') {
+		return opts.stdio;
+	}
+
+	const stdio = opts.stdio || [];
+
+	if (!Array.isArray(stdio)) {
+		throw new TypeError(`Expected \`stdio\` to be of type \`string\` or \`Array\`, got \`${typeof stdio}\``);
+	}
+
+	const result = [];
+	const len = Math.max(stdio.length, alias.length);
+
+	for (let i = 0; i < len; i++) {
+		let value = null;
+
+		if (stdio[i] !== undefined) {
+			value = stdio[i];
+		} else if (opts[alias[i]] !== undefined) {
+			value = opts[alias[i]];
+		}
+
+		result[i] = value;
+	}
+
+	return result;
+};

node_modules/pngquant-bin/node_modules/execa/license

@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+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/pngquant-bin/node_modules/execa/package.json

@@ -0,0 +1,108 @@
+{
+  "_from": "execa@^0.10.0",
+  "_id": "execa@0.10.0",
+  "_inBundle": false,
+  "_integrity": "sha512-7XOMnz8Ynx1gGo/3hyV9loYNPWM94jG3+3T3Y8tsfSstFmETmENCMU/A/zj8Lyaj1lkgEepKepvd6240tBRvlw==",
+  "_location": "/pngquant-bin/execa",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "execa@^0.10.0",
+    "name": "execa",
+    "escapedName": "execa",
+    "rawSpec": "^0.10.0",
+    "saveSpec": null,
+    "fetchSpec": "^0.10.0"
+  },
+  "_requiredBy": [
+    "/pngquant-bin"
+  ],
+  "_resolved": "https://registry.npmjs.org/execa/-/execa-0.10.0.tgz",
+  "_shasum": "ff456a8f53f90f8eccc71a96d11bdfc7f082cb50",
+  "_spec": "execa@^0.10.0",
+  "_where": "/Users/stefanfejes/Projects/30-seconds-of-python-code/node_modules/pngquant-bin",
+  "author": {
+    "name": "Sindre Sorhus",
+    "email": "sindresorhus@gmail.com",
+    "url": "sindresorhus.com"
+  },
+  "bugs": {
+    "url": "https://github.com/sindresorhus/execa/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {
+    "cross-spawn": "^6.0.0",
+    "get-stream": "^3.0.0",
+    "is-stream": "^1.1.0",
+    "npm-run-path": "^2.0.0",
+    "p-finally": "^1.0.0",
+    "signal-exit": "^3.0.0",
+    "strip-eof": "^1.0.0"
+  },
+  "deprecated": false,
+  "description": "A better `child_process`",
+  "devDependencies": {
+    "ava": "*",
+    "cat-names": "^1.0.2",
+    "coveralls": "^2.11.9",
+    "delay": "^2.0.0",
+    "is-running": "^2.0.0",
+    "nyc": "^11.0.2",
+    "tempfile": "^2.0.0",
+    "xo": "*"
+  },
+  "engines": {
+    "node": ">=4"
+  },
+  "files": [
+    "index.js",
+    "lib"
+  ],
+  "homepage": "https://github.com/sindresorhus/execa#readme",
+  "keywords": [
+    "exec",
+    "child",
+    "process",
+    "execute",
+    "fork",
+    "execfile",
+    "spawn",
+    "file",
+    "shell",
+    "bin",
+    "binary",
+    "binaries",
+    "npm",
+    "path",
+    "local"
+  ],
+  "license": "MIT",
+  "maintainers": [
+    {
+      "name": "James Talmage",
+      "email": "james@talmage.io",
+      "url": "github.com/jamestalmage"
+    }
+  ],
+  "name": "execa",
+  "nyc": {
+    "reporter": [
+      "text",
+      "lcov"
+    ],
+    "exclude": [
+      "**/fixtures/**",
+      "**/test.js",
+      "**/test/**"
+    ]
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/sindresorhus/execa.git"
+  },
+  "scripts": {
+    "test": "xo && nyc ava"
+  },
+  "version": "0.10.0"
+}

node_modules/pngquant-bin/node_modules/execa/readme.md

@@ -0,0 +1,304 @@
+# execa [![Build Status: Linux](https://travis-ci.org/sindresorhus/execa.svg?branch=master)](https://travis-ci.org/sindresorhus/execa) [![Build status: Windows](https://ci.appveyor.com/api/projects/status/x5ajamxtjtt93cqv/branch/master?svg=true)](https://ci.appveyor.com/project/sindresorhus/execa/branch/master) [![Coverage Status](https://coveralls.io/repos/github/sindresorhus/execa/badge.svg?branch=master)](https://coveralls.io/github/sindresorhus/execa?branch=master)
+
+> A better [`child_process`](https://nodejs.org/api/child_process.html)
+
+
+## Why
+
+- Promise interface.
+- [Strips EOF](https://github.com/sindresorhus/strip-eof) from the output so you don't have to `stdout.trim()`.
+- Supports [shebang](https://en.wikipedia.org/wiki/Shebang_(Unix)) binaries cross-platform.
+- [Improved Windows support.](https://github.com/IndigoUnited/node-cross-spawn#why)
+- Higher max buffer. 10 MB instead of 200 KB.
+- [Executes locally installed binaries by name.](#preferlocal)
+- [Cleans up spawned processes when the parent process dies.](#cleanup)
+
+
+## Install
+
+```
+$ npm install --save execa
+```
+
+
+## Usage
+
+```js
+const execa = require('execa');
+
+execa('echo', ['unicorns']).then(result => {
+	console.log(result.stdout);
+	//=> 'unicorns'
+});
+
+// pipe the child process stdout to the current stdout
+execa('echo', ['unicorns']).stdout.pipe(process.stdout);
+
+execa.shell('echo unicorns').then(result => {
+	console.log(result.stdout);
+	//=> 'unicorns'
+});
+
+// example of catching an error
+execa.shell('exit 3').catch(error => {
+	console.log(error);
+	/*
+	{
+		message: 'Command failed: /bin/sh -c exit 3'
+		killed: false,
+		code: 3,
+		signal: null,
+		cmd: '/bin/sh -c exit 3',
+		stdout: '',
+		stderr: '',
+		timedOut: false
+	}
+	*/
+});
+
+// example of catching an error with a sync method
+try {
+	execa.shellSync('exit 3');
+} catch (err) {
+	console.log(err);
+	/*
+	{
+		message: 'Command failed: /bin/sh -c exit 3'
+		code: 3,
+		signal: null,
+		cmd: '/bin/sh -c exit 3',
+		stdout: '',
+		stderr: '',
+		timedOut: false
+	}
+	*/
+}
+```
+
+
+## API
+
+### execa(file, [arguments], [options])
+
+Execute a file.
+
+Think of this as a mix of `child_process.execFile` and `child_process.spawn`.
+
+Returns a [`child_process` instance](https://nodejs.org/api/child_process.html#child_process_class_childprocess), which is enhanced to also be a `Promise` for a result `Object` with `stdout` and `stderr` properties.
+
+### execa.stdout(file, [arguments], [options])
+
+Same as `execa()`, but returns only `stdout`.
+
+### execa.stderr(file, [arguments], [options])
+
+Same as `execa()`, but returns only `stderr`.
+
+### execa.shell(command, [options])
+
+Execute a command through the system shell. Prefer `execa()` whenever possible, as it's both faster and safer.
+
+Returns a [`child_process` instance](https://nodejs.org/api/child_process.html#child_process_class_childprocess).
+
+The `child_process` instance is enhanced to also be promise for a result object with `stdout` and `stderr` properties.
+
+### execa.sync(file, [arguments], [options])
+
+Execute a file synchronously.
+
+Returns the same result object as [`child_process.spawnSync`](https://nodejs.org/api/child_process.html#child_process_child_process_spawnsync_command_args_options).
+
+This method throws an `Error` if the command fails.
+
+### execa.shellSync(file, [options])
+
+Execute a command synchronously through the system shell.
+
+Returns the same result object as [`child_process.spawnSync`](https://nodejs.org/api/child_process.html#child_process_child_process_spawnsync_command_args_options).
+
+### options
+
+Type: `Object`
+
+#### cwd
+
+Type: `string`<br>
+Default: `process.cwd()`
+
+Current working directory of the child process.
+
+#### env
+
+Type: `Object`<br>
+Default: `process.env`
+
+Environment key-value pairs. Extends automatically from `process.env`. Set `extendEnv` to `false` if you don't want this.
+
+#### extendEnv
+
+Type: `boolean`<br>
+Default: `true`
+
+Set to `false` if you don't want to extend the environment variables when providing the `env` property.
+
+#### argv0
+
+Type: `string`
+
+Explicitly set the value of `argv[0]` sent to the child process. This will be set to `command` or `file` if not specified.
+
+#### stdio
+
+Type: `Array` `string`<br>
+Default: `pipe`
+
+Child's [stdio](https://nodejs.org/api/child_process.html#child_process_options_stdio) configuration.
+
+#### detached
+
+Type: `boolean`
+
+Prepare child to run independently of its parent process. Specific behavior [depends on the platform](https://nodejs.org/api/child_process.html#child_process_options_detached).
+
+#### uid
+
+Type: `number`
+
+Sets the user identity of the process.
+
+#### gid
+
+Type: `number`
+
+Sets the group identity of the process.
+
+#### shell
+
+Type: `boolean` `string`<br>
+Default: `false`
+
+If `true`, runs `command` inside of a shell. Uses `/bin/sh` on UNIX and `cmd.exe` on Windows. A different shell can be specified as a string. The shell should understand the `-c` switch on UNIX or `/d /s /c` on Windows.
+
+#### stripEof
+
+Type: `boolean`<br>
+Default: `true`
+
+[Strip EOF](https://github.com/sindresorhus/strip-eof) (last newline) from the output.
+
+#### preferLocal
+
+Type: `boolean`<br>
+Default: `true`
+
+Prefer locally installed binaries when looking for a binary to execute.<br>
+If you `$ npm install foo`, you can then `execa('foo')`.
+
+#### localDir
+
+Type: `string`<br>
+Default: `process.cwd()`
+
+Preferred path to find locally installed binaries in (use with `preferLocal`).
+
+#### input
+
+Type: `string` `Buffer` `stream.Readable`
+
+Write some input to the `stdin` of your binary.<br>
+Streams are not allowed when using the synchronous methods.
+
+#### reject
+
+Type: `boolean`<br>
+Default: `true`
+
+Setting this to `false` resolves the promise with the error instead of rejecting it.
+
+#### cleanup
+
+Type: `boolean`<br>
+Default: `true`
+
+Keep track of the spawned process and `kill` it when the parent process exits.
+
+#### encoding
+
+Type: `string`<br>
+Default: `utf8`
+
+Specify the character encoding used to decode the `stdout` and `stderr` output.
+
+#### timeout
+
+Type: `number`<br>
+Default: `0`
+
+If timeout is greater than `0`, the parent will send the signal identified by the `killSignal` property (the default is `SIGTERM`) if the child runs longer than timeout milliseconds.
+
+#### maxBuffer
+
+Type: `number`<br>
+Default: `10000000` (10MB)
+
+Largest amount of data in bytes allowed on `stdout` or `stderr`.
+
+#### killSignal
+
+Type: `string` `number`<br>
+Default: `SIGTERM`
+
+Signal value to be used when the spawned process will be killed.
+
+#### stdin
+
+Type: `string` `number` `Stream` `undefined` `null`<br>
+Default: `pipe`
+
+Same options as [`stdio`](https://nodejs.org/dist/latest-v6.x/docs/api/child_process.html#child_process_options_stdio).
+
+#### stdout
+
+Type: `string` `number` `Stream` `undefined` `null`<br>
+Default: `pipe`
+
+Same options as [`stdio`](https://nodejs.org/dist/latest-v6.x/docs/api/child_process.html#child_process_options_stdio).
+
+#### stderr
+
+Type: `string` `number` `Stream` `undefined` `null`<br>
+Default: `pipe`
+
+Same options as [`stdio`](https://nodejs.org/dist/latest-v6.x/docs/api/child_process.html#child_process_options_stdio).
+
+#### windowsVerbatimArguments
+
+Type: `boolean`<br>
+Default: `false`
+
+If `true`, no quoting or escaping of arguments is done on Windows. Ignored on other platforms. This is set to `true` automatically when the `shell` option is `true`.
+
+
+## Tips
+
+### Save and pipe output from a child process
+
+Let's say you want to show the output of a child process in real-time while also saving it to a variable.
+
+```js
+const execa = require('execa');
+const getStream = require('get-stream');
+
+const stream = execa('echo', ['foo']).stdout;
+
+stream.pipe(process.stdout);
+
+getStream(stream).then(value => {
+	console.log('child output:', value);
+});
+```
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)

node_modules/pngquant-bin/package.json

@@ -0,0 +1,102 @@
+{
+  "_from": "pngquant-bin@^5.0.0",
+  "_id": "pngquant-bin@5.0.2",
+  "_inBundle": false,
+  "_integrity": "sha512-OLdT+4JZx5BqE1CFJkrvomYV0aSsv6x2Bba+aWaVc0PMfWlE+ZByNKYAdKeIqsM4uvW1HOSEHnf8KcOnykPNxA==",
+  "_location": "/pngquant-bin",
+  "_phantomChildren": {
+    "cross-spawn": "6.0.5",
+    "get-stream": "3.0.0",
+    "is-stream": "1.1.0",
+    "npm-run-path": "2.0.2",
+    "p-finally": "1.0.0",
+    "signal-exit": "3.0.2",
+    "strip-eof": "1.0.0"
+  },
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "pngquant-bin@^5.0.0",
+    "name": "pngquant-bin",
+    "escapedName": "pngquant-bin",
+    "rawSpec": "^5.0.0",
+    "saveSpec": null,
+    "fetchSpec": "^5.0.0"
+  },
+  "_requiredBy": [
+    "/imagemin-pngquant"
+  ],
+  "_resolved": "https://registry.npmjs.org/pngquant-bin/-/pngquant-bin-5.0.2.tgz",
+  "_shasum": "6f34f3e89c9722a72bbc509062b40f1b17cda460",
+  "_spec": "pngquant-bin@^5.0.0",
+  "_where": "/Users/stefanfejes/Projects/30-seconds-of-python-code/node_modules/imagemin-pngquant",
+  "author": {
+    "name": "Kevin Mårtensson",
+    "email": "kevinmartensson@gmail.com",
+    "url": "github.com/kevva"
+  },
+  "bin": {
+    "pngquant": "cli.js"
+  },
+  "bugs": {
+    "url": "https://github.com/imagemin/pngquant-bin/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {
+    "bin-build": "^3.0.0",
+    "bin-wrapper": "^4.0.1",
+    "execa": "^0.10.0",
+    "logalot": "^2.0.0"
+  },
+  "deprecated": false,
+  "description": "`pngquant` wrapper that makes it seamlessly available as a local dependency",
+  "devDependencies": {
+    "ava": "*",
+    "bin-check": "^4.0.1",
+    "compare-size": "^3.0.0",
+    "tempy": "^0.2.1",
+    "xo": "*"
+  },
+  "engines": {
+    "node": ">=6"
+  },
+  "files": [
+    "cli.js",
+    "index.js",
+    "lib",
+    "vendor/source"
+  ],
+  "homepage": "https://github.com/imagemin/pngquant-bin#readme",
+  "keywords": [
+    "imagemin",
+    "compress",
+    "image",
+    "img",
+    "minify",
+    "optimize",
+    "png",
+    "pngquant"
+  ],
+  "license": "MIT",
+  "maintainers": [
+    {
+      "name": "Sindre Sorhus",
+      "email": "sindresorhus@gmail.com",
+      "url": "sindresorhus.com"
+    },
+    {
+      "name": "Shinnosuke Watanabe",
+      "url": "github.com/shinnn"
+    }
+  ],
+  "name": "pngquant-bin",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/imagemin/pngquant-bin.git"
+  },
+  "scripts": {
+    "postinstall": "node lib/install.js",
+    "test": "xo && ava"
+  },
+  "version": "5.0.2"
+}

node_modules/pngquant-bin/readme.md

@@ -0,0 +1,49 @@
+# pngquant-bin [![Build Status](https://travis-ci.org/imagemin/pngquant-bin.svg?branch=master)](https://travis-ci.org/imagemin/pngquant-bin)
+
+> [`pngquant`](https://github.com/pornel/pngquant) is a PNG compressor that significantly reduces file sizes by converting images to a more efficient 8-bit PNG format
+
+You probably want [`imagemin-pngquant`](https://github.com/imagemin/imagemin-pngquant) instead.
+
+
+## Install
+
+```
+$ npm install pngquant-bin
+```
+
+
+## Usage
+
+```js
+const execFile = require('child_process').execFile;
+const pngquant = require('pngquant-bin');
+
+execFile(pngquant, ['-o', 'output.png', 'input.png'], err => {
+	console.log('Image minified!');
+});
+```
+
+
+## CLI
+
+```
+$ npm install --global pngquant-bin
+```
+
+```
+$ pngquant --help
+```
+
+
+## Updating pre-compiled binaries
+
+The Linux binaries are statically linked so they should work on all Linux distributions. To recompile them:
+
+1. `sudo apt-get install libpng-dev`
+2. `./configure CFLAGS=-static && make && cp pngquant pngquant-64`
+3. Repeat the above commands, but in a 32-bin docker container started with: docker run -ti -v `pwd`:/source i386/debian:9.3 bash
+
+
+## License
+
+MIT © [Imagemin](https://github.com/imagemin)