Init commit

.editorconfig

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+root = true
+
+[*]
+charset = utf-8
+indent_style = space
+indent_size = 2
+end_of_line = lf
+trim_trailing_whitespace = true
+insert_final_newline = true

.eslintrc.js

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+"use strict";
+
+/* -----------------------------------------------------------------------------
+ * eslint config
+ * -------------------------------------------------------------------------- */
+
+module.exports = {
+  root: true,
+  extends: "standard",
+  parserOptions: { ecmaVersion: 10 },
+  overrides: [
+    {
+      files: ["**/*.test.js"],
+      env: { mocha: true }
+    }
+  ]
+};

.gitignore

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+.DS_Store
+.grunt
+
+lib-cov
+*.seed
+*.log
+*.csv
+*.dat
+*.out
+*.pid
+*.gz
+
+pids
+logs
+results
+
+npm-debug.log
+sauce_connect.log
+
+/.nyc_output
+/node_modules
+/bower_components
+/coverage
+/dist
+/docs

.travis.yml

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+sudo: required
+dist: trusty
+
+language: node_js
+node_js:
+  - "10"
+
+script: npm run coverage
+
+after_success:
+  - npm run coveralls

README.md

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+<h1 align="center">with-fileserver</h1>
+<div align="center">
+  <p>FileServer context manager</p>
+  <div>
+  <a href="https://travis-ci.org/jaridmargolin/with-fileserver"><img src="https://travis-ci.org/jaridmargolin/with-fileserver.svg?branch=master" alt="Build Status"></a>
+  <a href="https://coveralls.io/github/jaridmargolin/with-fileserver?branch=master"><img src="https://coveralls.io/repos/github/jaridmargolin/with-fileserver/badge.svg?branch=master" alt="Coverage Status"></a>
+  <a href="http://standardjs.com/"><img src="https://img.shields.io/badge/code%20style-standard-brightgreen.svg" alt="Standard - JavaScript Style Guide"></a>
+  </div>
+  <div>
+  <a href="https://npmjs.org/package/with-fileserver"><img src="https://img.shields.io/npm/v/with-fileserver.svg" alt="NPM with-fileserver package"></a>
+  <a href="https://david-dm.org/jaridmargolin/with-fileserver"><img src="https://david-dm.org/jaridmargolin/with-fileserver.svg" alt="Dependency Status"></a>
+  <a href="https://david-dm.org/jaridmargolin/with-fileserver#info=devDependencies"><img src="https://david-dm.org/jaridmargolin/with-fileserver/dev-status.svg" alt="devDependency Status"></a>
+  </div>
+</div>
+<br>
+
+## Example Usage
+
+```js
+const withFileServer = require("with-fileserver");
+const request = require("request-promise-native");
+
+const html = withFileServer({ port: 8080, public: process.cwd() })(url =>
+  request(url)
+);
+```
+
+## License
+
+The MIT License (MIT) Copyright (c) 2019 Jarid Margolin
+
+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.

lib/index.js

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+'use strict'
+
+/* -----------------------------------------------------------------------------
+ * dependencies
+ * -------------------------------------------------------------------------- */
+
+// lib
+const http = require('http')
+
+// 3rd party
+const handler = require('serve-handler')
+
+/* -----------------------------------------------------------------------------
+ * withFileServer
+ * -------------------------------------------------------------------------- */
+
+// TODO: Pull this out into standalone pkg
+const contextManager = ({ before, after }) => options => async action => {
+  const context = {}
+  const beforeResult = await before(context, options)
+
+  try {
+    const actionResult = await action(beforeResult)
+    await after(context, options)
+    return actionResult
+  } catch (e) {
+    await after(context, options)
+    throw e
+  }
+}
+
+const withFileServer = contextManager({
+  before: (ctx, { port = 3000, ...opts }) =>
+    new Promise(resolve => {
+      ctx.server = http.createServer((req, res) => handler(req, res, opts))
+      return ctx.server.listen(port, () => resolve(`http://localhost:${port}`))
+    }),
+  after: ({ server }) =>
+    new Promise(resolve => {
+      return server.close(() => resolve())
+    })
+})
+
+module.exports = withFileServer

package.json

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+{
+  "name": "with-fileserver",
+  "description": "FileServer context manager",
+  "author": "Jarid Margolin <jaridmargolin@gmail.com>",
+  "version": "0.0.1",
+  "homepage": "https://github.com/jaridmargolin/with-fileserver",
+  "license": "MIT",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/jaridmargolin/with-fileserver"
+  },
+  "bugs": {
+    "url": "https://github.com/jaridmargolin/with-fileserver/issues"
+  },
+  "main": "lib/index.js",
+  "scripts": {
+    "coverage": "nyc --reporter=lcov --reporter=text npm test",
+    "coveralls": "cat ./coverage/lcov.info | coveralls",
+    "format": "prettier-eslint --write \"**/*.js\"",
+    "lint": "eslint \"**/*.js\"",
+    "test": "npm run lint && mocha"
+  },
+  "husky": {
+    "hooks": {
+      "pre-commit": "lint-staged && npm test"
+    }
+  },
+  "lint-staged": {
+    "*.js": [
+      "npm run format",
+      "git add"
+    ]
+  },
+  "dependencies": {
+    "serve-handler": "^6.0.1"
+  },
+  "devDependencies": {
+    "chai": "4.2.0",
+    "coveralls": "3.0.4",
+    "eslint": "5.8.0",
+    "eslint-config-standard": "12.0.0",
+    "eslint-plugin-import": "2.14.0",
+    "eslint-plugin-node": "8.0.1",
+    "eslint-plugin-promise": "4.0.1",
+    "eslint-plugin-standard": "4.0.0",
+    "husky": "2.4.0",
+    "lint-staged": "8.2.0",
+    "mocha": "6.1.4",
+    "nyc": "14.1.1",
+    "prettier-eslint-cli": "4.7.1",
+    "request": "2.88.0",
+    "request-promise-native": "1.0.7"
+  }
+}

prettier.config.js

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+'use strict'
+
+/* -----------------------------------------------------------------------------
+ * prettier config
+ * -------------------------------------------------------------------------- */
+
+module.exports = {}

renovate.json

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+{
+  "extends": [
+    "config:base"
+  ]
+}

test/fixtures/index.html

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+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <title>with-fileserver</title>
+  </head>
+  <body></body>
+</html>

test/index.js

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+/* eslint-env mocha */
+'use strict'
+
+/* -----------------------------------------------------------------------------
+ * dependencies
+ * -------------------------------------------------------------------------- */
+
+// core
+const path = require('path')
+
+// 3rd party
+const request = require('request-promise-native')
+const assert = require('chai').assert
+
+// lib
+const withFileServer = require('../lib')
+
+/* -----------------------------------------------------------------------------
+ * test
+ * -------------------------------------------------------------------------- */
+
+const fixturesDir = path.join(__dirname, 'fixtures')
+const serverOpts = { port: 5005, public: fixturesDir }
+const knownUrl = `http://localhost:${serverOpts.port}`
+
+describe('with-fileserver', function () {
+  it('should start and stop file server', async () => {
+    await withFileServer(serverOpts)(async url => {
+      assert.equal(url, knownUrl)
+      await request(url)
+    })
+
+    try {
+      await request(knownUrl)
+    } catch (e) {
+      return
+    }
+
+    throw new Error('Server not stopped')
+  })
+
+  it('should resolve with fn result', async () => {
+    assert.equal(await withFileServer(serverOpts)(__ => 'result'), 'result')
+  })
+
+  it('should reject with fn error', async () => {
+    let err
+
+    try {
+      await withFileServer(serverOpts)(__ => {
+        err = new Error('error')
+        throw err
+      })
+    } catch (e) {
+      return assert.equal(e, err)
+    }
+
+    throw new Error('Error not rejected')
+  })
+})