grunt-inject

Grunt task to inject scripts during development

npm install grunt-inject
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grunt-inject

Grunt task to inject scripts during development. Great for use with LiveReload via grunt-contrib-watch, web inspector remote via grunt-weinre, and Dev Tools snippets. Check out the sample script below.

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Getting Started

If you haven't used Grunt before, be sure to check out the Getting Started guide, as it explains how to create a Gruntfile as well as install and use Grunt plugins. Once you're familiar with that process, install this plugin with this command:

npm install grunt-inject --save-dev

Then add this line to your project's Gruntfile.js Gruntfile:

grunt.loadNpmTasks('grunt-inject');

Documentation

Here is a config to inject a script into a single page, and a second config to inject a script into multiple pages. You can use which ever one suits your needs:

inject: {
  single: {
    scriptSrc: 'build/devscript.js',
    files: {
      'dist/index.html': 'src/index.html'
    }
  },
  multiple: {
    scriptSrc: 'build/devscript.js',
    files: [{
      expand: true,
      cwd: 'src',
      src: ['**/*.html'],
      dest: 'dist'
    }]
  }
}

Required properties

scriptSrc

Type: String

The path of the script to be injected into the page.

files

Type: Grunt file configuration

The src HTML files must have the following comment which is replaced by the injected JavaScript:

<!-- inject -->

Sample Script

Here is a sample devscript.js which works together with grunt-contrib-watch with livereload and grunt-weinre with the recommended usage.


// Adds LiveReload script pointing at the client's hostname.
// This is helpful for mobile web development where your desktop might point at localhost while
// your devices point to a local IP address.
document.write('<script src="http://'
 + window.location.hostname
 + ':35729/livereload.js?snipver=1" type="text/javascript"><\/script>')

// Adds the client as a weinre(web inspector remote) debugging target at http://localhost:8082/client/#anonymous
// This is used to debug every mobile browser besides Mobile Safari and Chrome for Android
document.write('<script src="http://' + window.location.hostname + ':8082/target/target-script-min.js#anonymous"><\/script>');

Changelog

0.1.0 - Multiple script injectons can now be configured in a single task now that the Grunt file configuration is used.

Breaking Changes:

  • htmlSrc and htmlDest are no longer supported and must be replaced by the Grunt file configuration.
  • the <!--inject--> comment now has spaces inside and looks like this: <!-- inject -->.

0.0.0 - Initial release.

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