add linting (and some initial fixes)

9 files changed, 462 insertions, 0 deletions

diff --git a/node_modules/package-hash/LICENSE b/node_modules/package-hash/LICENSE
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+++ b/node_modules/package-hash/LICENSE
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+ISC License (ISC)
+Copyright (c) 2016-2017, Mark Wubben <mark@novemberborn.net> (novemberborn.net)
+
+Permission to use, copy, modify, and/or distribute this software for any purpose
+with or without fee is hereby granted, provided that the above copyright notice
+and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
+THIS SOFTWARE.
diff --git a/node_modules/package-hash/README.md b/node_modules/package-hash/README.md
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@@ -0,0 +1,79 @@
+# package-hash
+
+Generates a hash for an installed npm package, useful for salting caches.
+[AVA](https://github.com/sindresorhus/ava) for example caches precompiled test
+files. It generates a salt for its cache based on the various packages that are
+used when compiling the test files.
+
+`package-hash` can generate an appropriate hash based on the package location
+(on disk) and the `package.json` file. This hash is salted with a hash
+for the `package-hash` itself.
+
+`package-hash` can detect when the package-to-be-hashed is a Git repository. In
+the AVA example this is useful when you're debugging one of the packages used to
+compile the test files. You can clone it locally and use `npm link` so AVA can
+find the clone. The hash will include the HEAD (`.git/HEAD`) and its
+corresponding ref (e.g. `.git/refs/heads/master`), any packed refs
+(`.git/packed-refs`), as well as the diff (`git diff`) for any non-committed
+changes. This makes it really easy to test your changes without having to
+explicitly clear the cache in the parent project.
+
+## Installation
+
+```console
+$ npm install --save package-hash
+```
+
+## Usage
+
+```js
+const packageHash = require('package-hash')
+
+// Asynchronously:
+const hash = await packageHash(require.resolve('babel-core/package.json'))
+
+// Synchronously:
+const hash = packageHash.sync(require.resolve('babel-core/package.json'))
+```
+
+`packageHash()` / `packageHash.sync()` must be called with a file path for an
+existing `package.json` file. To get the path to an npm package it's easiest to
+use `require.resolve('the-name/package.json')`.
+
+You can provide multiple paths:
+
+```js
+const hash = await packageHash([
+  require.resolve('babel-core/package.json'),
+  require.resolve('babel-preset-es2015/package.json')
+])
+```
+
+An optional salt value can also be provided:
+
+```js
+const hash = await packageHash(require.resolve('babel-core/package.json'), 'salt value')
+```
+
+## API
+
+### `packageHash(paths, salt?)`
+
+`paths: string | string[]` ➜ can be a single file path, or an array of paths.
+
+`salt: Array | Buffer | Object | string` ➜ optional. If an `Array` or `Object` (not `null`) it is first converted to a JSON string.
+
+Returns a promise for the hex-encoded hash string.
+
+### `packageHash.sync(paths, salt?)`
+
+`paths: string | string[]` ➜ can be a single file path, or an array of paths.
+
+`salt: Array | Buffer | Object | string` ➜ optional. If an `Array` or `Object` (not `null`) it is first converted to a JSON string.
+
+Returns a hex-encoded hash string.
+
+## Compatibility
+
+`package-hash` has been tested with Node.js 4 and above, including Windows
+support.
diff --git a/node_modules/package-hash/index.js b/node_modules/package-hash/index.js
new file mode 100644
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+++ b/node_modules/package-hash/index.js
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+'use strict'
+
+const cp = require('child_process')
+const fs = require('fs')
+const path = require('path')
+
+const gfs = require('graceful-fs')
+const flattenDeep = require('lodash.flattendeep')
+const md5hex = require('md5-hex')
+const releaseZalgo = require('release-zalgo')
+
+const PACKAGE_FILE = require.resolve('./package.json')
+const TEN_MEBIBYTE = 1024 * 1024 * 10
+
+const readFile = {
+  async (file) {
+    return new Promise((resolve, reject) => {
+      gfs.readFile(file, (err, contents) => {
+        err ? reject(err) : resolve(contents)
+      })
+    })
+  },
+  sync (file) {
+    return fs.readFileSync(file)
+  }
+}
+
+const tryReadFile = {
+  async (file) {
+    return new Promise(resolve => {
+      gfs.readFile(file, (err, contents) => {
+        resolve(err ? null : contents)
+      })
+    })
+  },
+
+  sync (file) {
+    try {
+      return fs.readFileSync(file)
+    } catch (err) {
+      return null
+    }
+  }
+}
+
+const tryExecFile = {
+  async (file, args, options) {
+    return new Promise(resolve => {
+      cp.execFile(file, args, options, (err, stdout) => {
+        resolve(err ? null : stdout)
+      })
+    })
+  },
+
+  sync (file, args, options) {
+    try {
+      return cp.execFileSync(file, args, options)
+    } catch (err) {
+      return null
+    }
+  }
+}
+
+const git = {
+  tryGetRef (zalgo, dir, head) {
+    const m = /^ref: (.+)$/.exec(head.toString('utf8').trim())
+    if (!m) return null
+
+    return zalgo.run(tryReadFile, path.join(dir, '.git', m[1]))
+  },
+
+  tryGetDiff (zalgo, dir) {
+    return zalgo.run(tryExecFile,
+      'git',
+      // Attempt to get consistent output no matter the platform. Diff both
+      // staged and unstaged changes.
+      ['--no-pager', 'diff', 'HEAD', '--no-color', '--no-ext-diff'],
+      {
+        cwd: dir,
+        maxBuffer: TEN_MEBIBYTE,
+        env: Object.assign({}, process.env, {
+          // Force the GIT_DIR to prevent git from diffing a parent repository
+          // in case the directory isn't actually a repository.
+          GIT_DIR: path.join(dir, '.git')
+        }),
+        // Ignore stderr.
+        stdio: ['ignore', 'pipe', 'ignore']
+      })
+  }
+}
+
+function addPackageData (zalgo, pkgPath) {
+  const dir = path.dirname(pkgPath)
+
+  return zalgo.all([
+    dir,
+    zalgo.run(readFile, pkgPath),
+    zalgo.run(tryReadFile, path.join(dir, '.git', 'HEAD'))
+      .then(head => {
+        if (!head) return []
+
+        return zalgo.all([
+          zalgo.run(tryReadFile, path.join(dir, '.git', 'packed-refs')),
+          git.tryGetRef(zalgo, dir, head),
+          git.tryGetDiff(zalgo, dir)
+        ])
+          .then(results => {
+            return [head].concat(results.filter(Boolean))
+          })
+      })
+  ])
+}
+
+function computeHash (zalgo, paths, pepper, salt) {
+  const inputs = []
+  if (pepper) inputs.push(pepper)
+
+  if (typeof salt !== 'undefined') {
+    if (Buffer.isBuffer(salt) || typeof salt === 'string') {
+      inputs.push(salt)
+    } else if (typeof salt === 'object' && salt !== null) {
+      inputs.push(JSON.stringify(salt))
+    } else {
+      throw new TypeError('Salt must be an Array, Buffer, Object or string')
+    }
+  }
+
+  return zalgo.all(paths.map(pkgPath => addPackageData(zalgo, pkgPath)))
+    .then(furtherInputs => md5hex(flattenDeep([inputs, furtherInputs])))
+}
+
+let ownHash = null
+let ownHashPromise = null
+function run (zalgo, paths, salt) {
+  if (!ownHash) {
+    return zalgo.run({
+      async () {
+        if (!ownHashPromise) {
+          ownHashPromise = computeHash(zalgo, [PACKAGE_FILE])
+        }
+        return ownHashPromise
+      },
+      sync () {
+        return computeHash(zalgo, [PACKAGE_FILE])
+      }
+    })
+      .then(hash => {
+        ownHash = new Buffer(hash, 'hex')
+        ownHashPromise = null
+        return run(zalgo, paths, salt)
+      })
+  }
+
+  if (paths === PACKAGE_FILE && typeof salt === 'undefined') {
+    // Special case that allow the pepper value to be obtained. Mainly here for
+    // testing purposes.
+    return zalgo.returns(ownHash.toString('hex'))
+  }
+
+  paths = Array.isArray(paths) ? paths : [paths]
+  return computeHash(zalgo, paths, ownHash, salt)
+}
+
+module.exports = (paths, salt) => {
+  return run(releaseZalgo.async(), paths, salt)
+}
+module.exports.sync = (paths, salt) => {
+  const result = run(releaseZalgo.sync(), paths, salt)
+  return releaseZalgo.unwrapSync(result)
+}
diff --git a/node_modules/package-hash/node_modules/md5-hex/browser.js b/node_modules/package-hash/node_modules/md5-hex/browser.js
new file mode 100644
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+++ b/node_modules/package-hash/node_modules/md5-hex/browser.js
@@ -0,0 +1,10 @@
+'use strict';
+const md5OMatic = require('md5-o-matic');
+
+module.exports = input => {
+	if (Array.isArray(input)) {
+		input = input.join('');
+	}
+
+	return md5OMatic(input);
+};
diff --git a/node_modules/package-hash/node_modules/md5-hex/index.js b/node_modules/package-hash/node_modules/md5-hex/index.js
new file mode 100644
index 000000000..82cfae306
--- /dev/null
+++ b/node_modules/package-hash/node_modules/md5-hex/index.js
@@ -0,0 +1,23 @@
+'use strict';
+const crypto = require('crypto');
+
+module.exports = function (input) {
+	const hash = crypto.createHash('md5');
+
+	const update = buf => {
+		const inputEncoding = typeof buf === 'string' ? 'utf8' : undefined;
+		hash.update(buf, inputEncoding);
+	};
+
+	if (arguments.length > 1) {
+		throw new Error('Too many arguments. Try specifying an array.');
+	}
+
+	if (Array.isArray(input)) {
+		input.forEach(update);
+	} else {
+		update(input);
+	}
+
+	return hash.digest('hex');
+};
diff --git a/node_modules/package-hash/node_modules/md5-hex/license b/node_modules/package-hash/node_modules/md5-hex/license
new file mode 100644
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+++ b/node_modules/package-hash/node_modules/md5-hex/license
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+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.
diff --git a/node_modules/package-hash/node_modules/md5-hex/package.json b/node_modules/package-hash/node_modules/md5-hex/package.json
new file mode 100644
index 000000000..a87ce154f
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+++ b/node_modules/package-hash/node_modules/md5-hex/package.json
@@ -0,0 +1,39 @@
+{
+  "name": "md5-hex",
+  "version": "2.0.0",
+  "description": "Create a MD5 hash with hex encoding",
+  "license": "MIT",
+  "repository": "sindresorhus/md5-hex",
+  "author": {
+    "name": "Sindre Sorhus",
+    "email": "sindresorhus@gmail.com",
+    "url": "sindresorhus.com"
+  },
+  "engines": {
+    "node": ">=4"
+  },
+  "scripts": {
+    "test": "xo && ava"
+  },
+  "files": [
+    "index.js",
+    "browser.js"
+  ],
+  "keywords": [
+    "hash",
+    "crypto",
+    "md5",
+    "hex",
+    "buffer",
+    "browser",
+    "browserify"
+  ],
+  "dependencies": {
+    "md5-o-matic": "^0.1.1"
+  },
+  "devDependencies": {
+    "ava": "*",
+    "xo": "*"
+  },
+  "browser": "browser.js"
+}
diff --git a/node_modules/package-hash/node_modules/md5-hex/readme.md b/node_modules/package-hash/node_modules/md5-hex/readme.md
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+++ b/node_modules/package-hash/node_modules/md5-hex/readme.md
@@ -0,0 +1,46 @@
+# md5-hex [![Build Status](https://travis-ci.org/sindresorhus/md5-hex.svg?branch=master)](https://travis-ci.org/sindresorhus/md5-hex)
+
+> Create a MD5 hash with hex encoding
+
+*Please don't use MD5 hashes for anything sensitive!*
+
+Works in the browser too, when used with browserify/webpack.
+
+Checkout [`hasha`](https://github.com/sindresorhus/hasha) if you need something more flexible.
+
+
+## Install
+
+```
+$ npm install --save md5-hex
+```
+
+
+## Usage
+
+```js
+const fs = require('fs');
+const md5Hex = require('md5-hex');
+const buffer = fs.readFileSync('unicorn.png');
+
+md5Hex(buffer);
+//=> '1abcb33beeb811dca15f0ac3e47b88d9'
+```
+
+
+## API
+
+### md5Hex(input)
+
+#### input
+
+Type: `Buffer` `string` `Buffer[]` `string[]`
+
+Prefer buffers as they're faster to hash, but strings can be useful for small things.
+
+Pass an array instead of concatenating strings and/or buffers. The output is the same, but arrays do not incur the overhead of concatenation.
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)
diff --git a/node_modules/package-hash/package.json b/node_modules/package-hash/package.json
new file mode 100644
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--- /dev/null
+++ b/node_modules/package-hash/package.json
@@ -0,0 +1,60 @@
+{
+  "name": "package-hash",
+  "version": "2.0.0",
+  "description": "Generates a hash for an installed npm package, useful for salting caches",
+  "main": "index.js",
+  "files": [
+    "index.js"
+  ],
+  "engines": {
+    "node": ">=4"
+  },
+  "scripts": {
+    "lint": "as-i-preach",
+    "unpack-fixtures": "node scripts/unpack-fixtures.js",
+    "pregenerate-fixture-index": "npm run unpack-fixtures",
+    "generate-fixture-index": "node scripts/generate-fixture-index.js",
+    "pretest": "npm run unpack-fixtures",
+    "test": "ava",
+    "posttest": "npm run lint",
+    "coverage": "nyc npm test",
+    "watch:test": "npm run test -- --watch"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/novemberborn/package-hash.git"
+  },
+  "author": "Mark Wubben (https://novemberborn.net/)",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/novemberborn/package-hash/issues"
+  },
+  "homepage": "https://github.com/novemberborn/package-hash#readme",
+  "dependencies": {
+    "graceful-fs": "^4.1.11",
+    "lodash.flattendeep": "^4.4.0",
+    "md5-hex": "^2.0.0",
+    "release-zalgo": "^1.0.0"
+  },
+  "devDependencies": {
+    "@novemberborn/as-i-preach": "^7.0.0",
+    "ava": "^0.18.0",
+    "coveralls": "^2.11.15",
+    "nyc": "^10.0.0",
+    "rimraf": "^2.5.2",
+    "tar": "^2.2.1"
+  },
+  "nyc": {
+    "cache": true,
+    "exclude": [
+      "scripts",
+      "test"
+    ],
+    "reporter": [
+      "html",
+      "lcov",
+      "text"
+    ]
+  },
+  "standard-engine": "@novemberborn/as-i-preach"
+}