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The grunt-cli package is the command line interface for Grunt, a JavaScript task runner. It allows you to automate repetitive tasks such as minification, compilation, unit testing, linting, and more.
Task Automation
This code sample demonstrates how to automate the task of JavaScript file minification using the 'uglify' plugin. The 'uglify' task reads a source file and outputs a minified version.
module.exports = function(grunt) {
grunt.initConfig({
pkg: grunt.file.readJSON('package.json'),
uglify: {
options: {
banner: '/*! <%= pkg.name %> <%= grunt.template.today("yyyy-mm-dd") %> */\n'
},
build: {
src: 'src/<%= pkg.name %>.js',
dest: 'build/<%= pkg.name %>.min.js'
}
}
});
grunt.loadNpmTasks('grunt-contrib-uglify');
grunt.registerTask('default', ['uglify']);
};
File Watching
This code sample shows how to set up a file watcher that monitors JavaScript files for changes and runs the 'jshint' task whenever a change is detected.
module.exports = function(grunt) {
grunt.initConfig({
watch: {
scripts: {
files: ['**/*.js'],
tasks: ['jshint'],
options: {
spawn: false,
},
},
},
});
grunt.loadNpmTasks('grunt-contrib-watch');
grunt.registerTask('default', ['watch']);
};
Compilation
This code sample demonstrates how to compile Sass files into CSS using the 'sass' plugin. The 'sass' task reads a Sass file and outputs a compiled CSS file.
module.exports = function(grunt) {
grunt.initConfig({
sass: {
dist: {
files: {
'main.css': 'main.scss'
}
}
}
});
grunt.loadNpmTasks('grunt-contrib-sass');
grunt.registerTask('default', ['sass']);
};
Gulp is another JavaScript task runner that uses a code-over-configuration approach. It is known for its speed and flexibility, allowing you to use Node.js streams to build automation tasks. Compared to Grunt, Gulp's syntax is more concise and it often performs better due to its use of streams.
Webpack is a module bundler primarily for JavaScript, but it can transform front-end assets like HTML, CSS, and images if the corresponding loaders are included. Unlike Grunt, which is a task runner, Webpack focuses on bundling modules and dependencies, making it more suitable for complex front-end applications.
Broccoli is a JavaScript build tool that emphasizes a simple, composable, and fast build pipeline. It is particularly well-suited for large projects and offers a more modern approach compared to Grunt. Broccoli uses a tree-based architecture, which can make it easier to manage complex build processes.
The Grunt command line interface.
Install this globally and you'll have access to the grunt
command anywhere on your system.
npm install -g grunt-cli
Note: The job of the grunt
command is to load and run the version of Grunt you have installed locally to your project, irrespective of its version. Starting with Grunt v0.4, you should never install Grunt itself globally. For more information about why, please read this.
See the Getting Started guide for more information.
To enable tab auto-completion for Grunt, add one of the following lines to your ~/.bashrc
or ~/.zshrc
file.
# Bash, ~/.bashrc
eval "$(grunt --completion=bash)"
# Zsh, ~/.zshrc
eval "$(grunt --completion=zsh)"
If you don't have administrator rights, you may need to install grunt-cli locally to your project using npm install grunt-cli --save-dev
. Unfortunately, this will not put the grunt
executable in your PATH. You'll need to specify its explicit location when executing it, eg: ./node_modules/.bin/grunt
,
Note: Using grunt-cli in this way is unsupported.
FAQs
The grunt command line interface
The npm package grunt-cli receives a total of 695,310 weekly downloads. As such, grunt-cli popularity was classified as popular.
We found that grunt-cli demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 0 open source maintainers collaborating on the project.
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