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biggulp

Features and utilities to simplify advanced gulpfiles

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biggulp

Features and utilities to simplify advanced gulpfiles.

Features

  • Mocha test runner
  • Istanbul code coverage - both console report & browser report features
  • File watching
  • Ability to start/restart companion processes required for tests
  • Ngrok integration
  • JSHint
  • JSCS

Defaults / Conventions

All of these can be changed, but without providing specific values for them, theses are biggulp's defaults:

{
   allSpecPaths: [ "./spec" ],
   behaviorSpecPaths: [ "./spec/behavior" ],
   integrationSpecPaths: [ "./spec/integration" ],
   specs: [ "**/*.spec.js" ],
   watchPaths: [ "./src/**/*", "./spec/**/*", "./resource/**/*" ],
   sources: [ "*.js", "{resource,src,spec}/**/*.js" ],
   jscsCfgPath: ".jscsrc"
}

Setup

require( "biggulp" )( gulp, [options] )

A reference to the gulp instance in your gulpfile must always be passed as the first argument. Any properties you provide on the options argument will override its corresponding defaults.

var gulp = require( "gulp" );
var bg = require( "biggulp" )( gulp );

// overriding allSpecPaths
var bg = require( "biggulp" )( gulp, { allSpecPaths: [ "./test" ] } );

Mocha

Runs specifications via Mocha.

bg.test( [ testGlob ] )

Run tests that match testGlob - the test pattern to use (relative to the default/root spec path). Default is "**/*.spec.js".

gulp.task( "specs", function() {
	return bg.test( "./spec/justThisSpec.js" );
} );

bg.testOnce( [ testGlob ] )

Like test except it uses an exit code to indicate pass/fail (0 pass, >0 fail).

gulp.task( "specs", function() {
	return bg.testOnce( "./spec/justThisSpec.js" );
} );

bg.testAll( [ options ] )

Run tests that match the test pattern defined in the options' specs property and that fall under any of the directories listed under the options' specPaths array. The options argument allows you to pass a configuration other than what you passed to biggulp's factory to begin with.

gulp.task( "test-everything", function() {
	return bg.testAll();
} );

bg.testAllOnce( [ options ] )

Like testAll except it uses an exit code to indicate pass/fail (0 pass, >0 fail).

bg.testBehavior( [ options ] )

Run tests that match the test pattern defined in the options' specs property and that fall under any of the directories listed under the options' behaviorSpecPaths array. The options argument allows you to pass a configuration other than what you passed to biggulp's factory to begin with.

gulp.task( "test-behavior", function() {
	return bg.testBehavior();
} );

bg.testBehaviorOnce( [ options ] )

Like testBehavior except it uses an exit code to indicate pass/fail (0 pass, >0 fail).

bg.testIntegration( [ options ] )

Run tests that match the test pattern defined in the options' specs property and that fall under any of the directories listed under the options' integrationSpecPaths array. The options argument allows you to pass a configuration other than what you passed to biggulp's factory to begin with.

gulp.task( "test-behavior", function() {
	return bg.testIntegration();
} );

bg.testIntegrationOnce( [ options ] )

Like testIntegration except it uses an exit code to indicate pass/fail (0 pass, >0 fail).

Watchers

bg.watch( [ options ,] tasks )

Creates a file watcher for the patterns specified in either the global biggulp options watchPaths array (defaults to [ "./src/**/*", "./spec/**/*", "./resource/**/*" ] ) – or in the options argument's watchPaths array – and executes the array of tasks when a file changes.

gulp.task( "watch", function() {
	return bg.watch( [ "specs" ] );
} );

Istanbul

Istanbul is a great library that provides code coverage metrics. Use it, you won't be sorry.

bg.withCoverage( [ options ] )

Works like test but adds a console report showing test coverage as measured by Istanbul.

gulp.task( "coverage", function() {
	bg.withCoverage();
} );

bg.showCoverage( [ options ] )

Like withCoverage but also displays the browser report and then exits the process.

gulp.task( "show-coverage", function() {
	return bg.showCoverage();
} );

Ngrok

Ngrok is a tunneling service that allows you to expose a local service publicly.

Note: the free version does not reserve/guarantee your subdomain.

bg.ngrok( ngrok [, options ] )

Sets up an ngrok tunnel and returns a promise which resolves to the public url once the tunnel is ready. You can pass the ngork options in as the options argument, or it will use defaults you've set when you pass options to biggulp's module factory.

Note: the ngrok instance is required to eliminate always installing ngrok as a dependency for biggulp when not in-use.

var ngrok = require( "ngrok" );

bg.grok( ngrok, { domain: "mahDomain", port: 8800, token: "anToken" } )
	.then( function( url ) {
		console.log( "Tunneling", url, "to 8800" );
	} );

process hosting

Uses processhost to start/restart OS processes. See processhost README for details on options.

Notes:

  1. if you're using watch tasks, biggulp will restart all processes defined this way for you on file changes.
  1. processes with the restart option set to false will not restart on file changes.

bg.process( name, options )

Use when you only need to manage a single process along with your tests. Returns a promise that resolves on process start.

bg.process( "redis", { cmd: "redis-server", stdio: "ignore", restart: false } )
	.then( function() {
		// everything is ready to go
	} );

bg.processes( processHash )

Use when you need several processes. Returns a promise that resolves after all processes start.

bg.processes(
	{
		server: { args: [ "./src/index.js" ] },
		redis: { cmd: "redis-server", stdio: "ignore", restart: false }
	} )
	.then( function() {
		// everything is ready to go
	} )

Common Gulp File

We've discovered many of our node-only and OSS libs typically have the same tasks. We've created a common-gulp module at the root of this project that you can include to automatically define these tasks. If you go this route, your gulpfile would look like this:

// gulpfile.js
var bg = require( "biggulp/common-gulp" )( require( "gulp" ) );
/*
	Gives you the following tasks:
    ├─┬ ?
    │ └── help
    ├── about
    ├── continuous-test
    ├─┬ coverage
    │ └── format
    ├─┬ coverage-watch
    │ └── coverage
    ├─┬ default
    │ ├── coverage
    │ └── coverage-watch
    ├─┬ format
    │ └── jshint
    ├── help
    ├── jshint
    ├── restartProcesses
    ├── show-coverage
    ├─┬ test
    │ └── coverage
    ├─┬ test-and-exit
    │ └── jshint
    ├── test-behavior
    ├── test-int
    ├─┬ test-watch
    │ └── continuous-test
*/

NOTE: Biggulp actually uses this approach for its gulpfile - biggulp-ception™.

Custom Example

This example has tasks that demonstrate the following "recipes":

build
run the tests and exit with 0 for success > 0 for failure
specs
continuously re-run specs on change
default
continuously re-run specs on change and display coverage in console
show-coverage
runs the specs and opens the browser to a coverage report
var gulp = require( "gulp" );
// uses default paths
var bg = require( "biggulp" )( gulp );

// a task to pass default tests to istanbul
// results in a coverage report at the end of
// test run
gulp.task( "coverage", function() {
   bg.withCoverage();
} );

// a watch task against default paths and
// run the coverage task on file changes
gulp.task( "coverage-watch", function() {
   bg.watch( [ "coverage" ] );
} );

// open a browser after the test run and exit
gulp.task( "show-coverage", function() {
   return bg.showCoverage();
} );

// just run the specs via mocha
gulp.task( "continuous-specs", function() {
   return bg.testAll();
} );

// sets up a watch on default paths and
// runs the `continuous-specs` task on file change
gulp.task( "specs-watch", function() {
   bg.watch( [ "continuous-specs" ] );
} );

// run specs and exit with a code to indicate pass/fail
gulp.task( "test-and-exit", function() {
   return bg.testAllOnce();
} );

gulp.task( "default", [ "coverage", "coverage-watch" ], function() {} );
gulp.task( "specs", [ "continuous-specs", "specs-watch" ], function() {} );
gulp.task( "build", [ "test-and-exit" ] );

RoadMap / TODOs

  • We are going to introduce the ability to set the output directory for istanbul reports, and thus the main page to load to display the report(s).

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Package last updated on 23 Jun 2016

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