Opinionated Suite of Common Grunt Tasks for JavaScript Libraries.
This is an opinionated solution, and expects the following project structure:
docs/project design and API documentationexamples/sample applications and suchout/output from build taskssrc/source filestest/test filestools/supporting tools for code quality, builds, etc.index.htmlthe default web page for the project
If you want to meet these expectations simply, use the Yeoman generator for wf-js projects:
# init npm for your project if you haven't already:
$ npm init
# install wf-js-grunt
$ npm install --save-dev git+ssh://git@github.com:WebFilings/wf-js-grunt.git#{version}// In Gruntfile.js
module.exports = function(grunt) {
require('wf-js-grunt').init(grunt);
};Yes, it's that easy to configure!
This project tries to use sensible defaults, but chances are good you'll want to:
- modify the default settings for wf-js-grunt;
- modify or extend the default configuration for the plugins wf-js-grunt uses; or,
- extend the grunt configuration to work with project-specific plugins and tasks.
Modification of the settings for wf-js-grunt is done through the options property
of the config parameter passed into wfJsGrunt.init(grunt, config).
// Example using all the available options:
module.exports = function(grunt) {
require('wf-js-grunt').init(grunt, {
options: {
// Setup a RequireJS config template to use with Jasmine and Karma.
// All paths should be based on the project root.
// DEFAULT: undefined
requireConfig: {
paths: {
file: 'path/to/file.js',
alias: 'path/to/directory',
'your-project-name': './src'
},
shim: {
// As you need....
}
},
// Set code coverage thresholds. Disable by setting to null.
// If coverage dips below these values, the relevant tasks will fail.
// DEFAULT: 90% across the board.
coverageThresholds: {
statements: 90,
branches: 90,
functions: 90,
lines: 90
},
// Change the default port used by the provided Connect web server.
// DEFAULT: 9000
wwwPort: 9000,
// Forward HTTP requests made to the provided Connect web server.
// DEFAULT: undefined
proxies: {
// Can forward to another host.
'/requested/path': 'http://host:port/forwarded/path',
// Can forward/redirect to same host.
'/requested/path': '/forwarded/path',
// Can use regex pattern matching and replacements.
'/requested/path/(.*\\.html)': '/forwarded/path/$1',
},
// Enable Karma testing with SauceLabs by supplying your credentials.
// If the username and accessKey are set, then karma will launch
// browsers on SauceLabs to run the tests; if not, karma will run
// locally in development mode, allowing you to connect local browsers:
// DEFAULT: undefined
sauceLabs: {
buildNumber: 'build number from CI server',
testName: 'my repo unit tests',
username: 'your_username',
accessKey: 'your_accessKey'
},
// Modify the list of subtasks run when a built-in alias task is run.
// This is handy for adding custom tasks from outside of wf-js-grunt
// into the various workflow tasks provided.
onAliasTaskRunning: function(name, tasks) {
if (name === 'lint') {
tasks.unshift('customTask');
}
},
// Add custom middleware for the connect server.
// This function should return a list of middleware that will
// be prepended to the middleware already present in wf-grunt.
middleware: function(connect, options) {
return [
customMiddleware
];
}
}
});
};wf-js-grunt uses many common and popular plugins -- such as grunt-contrib-watch
and grunt-contrib-jshint -- and configures these plugins to suit its needs.
If you have to make use of these plugins in additional ways, it is simple to merge
custom configuration settings into the configuration built up by wf-js-grunt.
// Example of merging custom settings for plugins used by wf-js-grunt.
module.exports = function(grunt) {
require('wf-js-grunt').init(grunt, {
// Add a configuration property for the plugin you want to modify or extend.
// The values are merged into the configuration built up by wf-js-grunt.
jshint: {
// MODIFICATION:
// Add a global var to the hinting rules for the files in src/.
// wf-js-grunt has already specified a src target and configured it,
// so you can just tweak those settings to suit your need.
src: {
options: {
globals: {
foo: true
}
}
},
// EXTENSION:
// Add a custom jshint target, available via: `grunt jshint:custom`.
custom: {
src: ['some/glob/**/*.js'],
options: {
browser: true
}
}
}
});
};Another common scenario is that you want to configure plugins and tasks that live outside of wf-js-grunt. As described above, since configuration properties are merged over the configuration generated by wf-js-grunt, this is easy:
// Example of specifying configuration for project-specific plugins and tasks.
module.exports = function(grunt) {
require('wf-js-grunt').init(grunt, {
adhoc: {
// ...
}
});
grunt.loadNpmTasks('grunt-adhoc');
};To see a list of the tasks available:
$ grunt -hThe following tasks will combine a number of single tasks in a meaningful way.
$ grunt Check code quality (lint, test, cover, docs).
$ grunt ci Check code quality on CI server.
$ grunt qa Check code quality and open the project web site.
$ grunt serve Open the project web site.
$ grunt dev Lint and test, open the project web site and watch.
$ grunt lint Lint files and watch.
$ grunt test Run tests, open the spec runner and watch.
$ grunt cover Run code coverage, open the coverage report and watch.
$ grunt analyze Run complexity analysis, open the report and watch.
$ grunt docs Generate API docs, open the index and watch.
Most of the tasks above start a watch after first executing. If the task is failing
out of the gate, you can force it to continue into a watch state by appending
the --force flag to the end of your command like so:
# this task fails cause there's a broken test,
# but you wanted to launch the HTML spec runner and start a watch :(
$ grunt test
# just force the task to continue past the failure
$ grunt test --force
The tasks that start a watch will, on changes to relevant source files, refresh both the console output and HTML pages served from the site. The intent is to eliminate context switching between your editor and your feedback mechanism of choice.
If you want to start a watch even when tasks are failing, start the watch first:
$ grunt watch:dev
$ grunt watch:lint
$ grunt watch:test
$ grunt watch:cover
$ grunt watch:docs
This project uses a Connect web server to serve files from the project.
$ grunt connect:run Start the project's web server and kill after task finishes.
$ grunt connect:serve Start the project's web server and keep it alive.
$ grunt jshint Validate all files with JSHint.
$ grunt jshint:examples Validate example files.
$ grunt jshint:node Validate node files.
$ grunt jshint:src Validate source files.
$ grunt jshint:test Validate test files.
$ grunt plato Run code complexity analysis using Plato.
$ grunt jasmine Run jasmine specs and istanbul code coverage headlessly.
$ grunt jasmine:coverage Run istanbul code coverage.
$ grunt jasmine:test Run jasmine unit tests.
$ grunt jasmine:integration Run jasmine integration tests.
We use Karma and SauceLabs to do cross-browser testing.
$ grunt karma:local Start karma and wait for local browsers to connect.
$ grunt karma:sauce Start karma launch browsers on SauceLabs.
If you supply your sauce labs credentials in the configuration for wf-grunt,
then the karma:sauce target will be available. If you do not, then the
karma:local target will be available. This means you can just run
grunt karma and run locally or on sauce depending on your environment.
The :local target is useful for fixing test failures from SauceLabs browsers.
It will start Karma, run tests on PhantomJS for a quick sanity check, and then wait.
You can then connect devices to the Karma server and start fixing things.
Just point your browsers to the URL Karma logs after it is started.
$ grunt jsdoc Generate source documentation using jsdoc.
$ grunt shell Run shell commands.
$ grunt shell:installPreCommitHook Install git pre commit hook for code quality.
$ grunt shell:installPrePushHook Install git pre push hook for code quality.
$ grunt shell:openCoverage Open the istanbul code coverage report.
$ grunt shell:openDocs Open the API docs.
$ grunt shell:openTest Open the jasmine spec runner.
$ grunt shell:openWeb Open the project's web site.
$ grunt clean Clean all output files and folders.
$ grunt clean:coverage Clean code coverage output.
$ grunt clean:docs Clean generated API documentation.
$ grunt clean:test Clean test output.
$ grunt precommit Run lint and test tasks.
$ grunt prepush Run lint, test, cover and docs tasks.
- Node: server-side JavaScript
- NPM: package manager for server-side JavaScript
- Grunt: task runner
- Connect: local dev server
- RequireJs: module loader
- JSDoc: API documentation generator
- JSHint: JavaScript source file validator
- Plato: JavaScript code visualization, static analysis, and complexity
- Jasmine: test framework
- Istanbul: code coverage framework
- Karma: multi-client test runner
- SauceLabs: browsers in the cloud