lab-remil

.eslintrc

@@ -0,0 +1,22 @@
+{
+  "rules": {
+    "no-console": "off",
+    "indent": [ "error", 2 ],
+    "quotes": [ "error", "single" ],
+    "semi": ["error", "always"],
+    "linebreak-style": [ "error", "windows" ],
+    "comma-dangle": ["error", "always-multiline"]
+  },
+  "env": {
+    "es6": true,
+    "node": true,
+    "mocha": true,
+    "jasmine": true
+  },
+  "ecmaFeatures": {
+    "modules": true,
+    "experimentalObjectRestSpread": true,
+    "impliedStrict": true
+  },
+  "extends": "eslint:recommended"
+}

.gitignore

@@ -0,0 +1,117 @@
+# Created by https://www.gitignore.io/api/node,vim,osx,macos,linux
+
+*node_modules
+
+### Node ###
+# Logs
+logs
+*.log
+npm-debug.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules
+jspm_packages
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+
+
+### Vim ###
+# swap
+[._]*.s[a-v][a-z]
+[._]*.sw[a-p]
+[._]s[a-v][a-z]
+[._]sw[a-p]
+# session
+Session.vim
+# temporary
+.netrwhist
+*~
+# auto-generated tag files
+tags
+
+
+### OSX ###
+*.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+# Thumbnails
+._*
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+
+### macOS ###
+# Icon must end with two \r
+# Thumbnails
+# Files that might appear in the root of a volume
+# Directories potentially created on remote AFP share
+
+
+### Linux ###
+
+# temporary files which can be created if a process still has a handle open of a deleted file
+.fuse_hidden*
+
+# KDE directory preferences
+.directory
+
+# Linux trash folder which might appear on any partition or disk
+.Trash-*
+
+# .nfs files are created when an open file is removed but is still being accessed
+.nfs*
+
+# End of https://www.gitignore.io/api/node,vim,osx,macos,linux

data/one.txt

@@ -0,0 +1 @@
+Ain't nothin but a g-thang

data/three.txt

@@ -0,0 +1 @@
+All hail the redskins!!!

data/two.txt

@@ -0,0 +1 @@
+The doppity doppest doptacular dopeness eva

gulpfile.js

@@ -0,0 +1,23 @@
+'use strict';
+
+const gulp = require('gulp');
+const eslint = require('gulp-eslint');
+const mocha = require('gulp-mocha');
+
+gulp.task('test', function gulpTest(){
+  gulp.src('./test/*-test.js', {read: false})
+  .pipe(mocha({reporter: 'spec'}));
+});
+
+gulp.task('lint', function gulpLint(){
+  return gulp.src(['**/*.js', '!node_modules/**'])
+  .pipe(eslint())
+  .pipe(eslint.format())
+  .pipe(eslint.failAfterError());
+});
+
+gulp.task('dev', function gulpDev(){
+  gulp.watch(['**/*.js', '!node_modules/**'], ['lint', 'test']);
+});
+
+gulp.task('default', ['dev']);

index.js

@@ -0,0 +1,8 @@
+'use strict';
+
+const fileLogger = require('./lib/filelogger.js');
+
+fileLogger([`${__dirname}/data/one.txt`, `${__dirname}/data/two.txt`, `${__dirname}/data/three.txt`], function(err, result) {
+  if(err) throw err;
+  console.log(result);
+});

lib/filelogger.js

@@ -0,0 +1,28 @@
+'use strict';
+
+const fs = require('fs');
+
+module.exports = function fileLogger(files, callback) {
+  let resultArray = files.map(function(file){
+    return {
+      path: file,
+    };
+  });
+
+  let filterBufferHex = function(bufferObj) {
+    return bufferObj.toString('hex', 0, 8);
+  };
+
+  for(let i=0; i < files.length; i++) {
+    let readFile = files[i];
+    fs.readFile(readFile, function(err, data) {
+      if (err) return callback(err);
+      resultArray[files.indexOf(readFile)].result = filterBufferHex(data);
+      if (resultArray.filter(function(file){
+        return Object.keys(file).includes('result');
+      }).length === files.length) {
+        return callback(null, resultArray);
+      }
+    });
+  }
+};

package.json

@@ -0,0 +1,33 @@
+{
+  "name": "lab-remil",
+  "version": "1.0.0",
+  "description": "![CF](https://camo.githubusercontent.com/70edab54bba80edb7493cad3135e9606781cbb6b/687474703a2f2f692e696d6775722e636f6d2f377635415363382e706e67) Lab 03: Parallel File Processing\r ===",
+  "main": "index.js",
+  "directories": {
+    "test": "test"
+  },
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/remilonwheels/03-parallel_file_processing.git"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/remilonwheels/03-parallel_file_processing/issues"
+  },
+  "homepage": "https://github.com/remilonwheels/03-parallel_file_processing#readme",
+  "dependencies": {
+    "bluebird": "^3.4.7"
+  },
+  "devDependencies": {
+    "chai": "^3.5.0",
+    "gulp": "^3.9.1",
+    "gulp-eslint": "^3.0.1",
+    "gulp-mocha": "^3.0.1",
+    "mocha": "^3.2.0"
+  }
+}

test/filelogger-test.js

@@ -0,0 +1,81 @@
+'use strict';
+
+const fileLogger = require('../lib/fileLogger.js');
+const expect = require('chai').expect;
+
+describe('FileLogger Module', function() {
+  describe('with an improper file path', function(){
+    it('should return an error', function(done) {
+      let badFilePath = 'badfile/sobad';
+      fileLogger([badFilePath], function(err) {
+        expect(err).to.be.an('error');
+        done();
+      });
+    });
+  });
+
+  describe('with one proper file path passed in an array', function() {
+    let input = [`${__dirname}/../data/one.txt`];
+    it('should return an array of the same length as the input array', function(done) {
+      fileLogger(input , function(err, data) {
+        expect(err).to.equal(null);
+        expect(data).to.be.an('array');
+        expect(data.length).to.equal(input.length);
+        done();
+      });
+    });
+
+    it('returned array should have a result property that has value of the first 8 bits in hex', function(done) {
+      fileLogger(input , function(err, data) {
+        expect(data[0]).to.have.property('result');
+        expect(data[0].result.length).to.equal(16);
+        expect(data[0].result).to.equal('41696e2774206e6f');
+        done();
+      });
+    });
+  });
+
+  describe('with three files passed in array', function(){
+    let input = [`${__dirname}/../data/one.txt`, `${__dirname}/../data/two.txt`, `${__dirname}/../data/three.txt`];
+    it('should return an array of the same length as the input array', function(done){
+      fileLogger(input, function(err, data) {
+        expect(err).to.equal(null);
+        expect(data).to.be.an('array');
+        expect(data.length).to.equal(input.length);
+        done();
+      });
+    });
+
+    it('returned array should be in the same order as the input array', function(done){
+      fileLogger(input, function(err, data) {
+        expect(data[0].path).to.equal(input[0]);
+        expect(data[1].path).to.equal(input[1]);
+        expect(data[2].path).to.equal(input[2]);
+        done();
+      });
+
+      let inputDiff = [ `${__dirname}/../data/three.txt`,`${__dirname}/../data/one.txt`, `${__dirname}/../data/two.txt`];
+      fileLogger(inputDiff, function(err, data) {
+        expect(data[0].path).to.equal(input[0]);
+        expect(data[1].path).to.equal(input[1]);
+        expect(data[2].path).to.equal(input[2]);
+        done();
+      });
+    });
+
+    it('returned array should have a result property that has value of the first 8 bits in hex', function(done) {
+      fileLogger(input , function(err, data) {
+        expect(data[0]).to.have.property('result');
+        expect(data[1]).to.have.property('result');
+        expect(data[2]).to.have.property('result');
+        expect(data[0].result.length).to.equal(16);
+        expect(data[1].result.length).to.equal(16);
+        expect(data[2].result.length).to.equal(16);
+        expect(data[0].result).to.equal('41696e2774206e6f');
+        expect(data[1].result).to.equal('54686520646f7070');
+        expect(data[2].result).to.equal('416c6c206861696c');
+        done();
+      });
+    });
+  });
+});