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README.md

Build Status

cdnJS Script Repository

cdnJS is the repository mirroring all scripts on cdnjs.cloudflare.com, created and maintained by Thomas Davis, Ryan Kirkman and Lachlan Collins

We will host any version of any library, subject to popularity and licence permissions.

Libraries must have notable popularity: 100 stars or watchers on GitHub is a good example, but as long as reasonable popularity can be demonstrated the library will be added.

Evidence of popularity should be included in your pull request if the GitHub project doesn't indicate this already.

Please raise a pull request for an older version of a library if your site still uses it, and also for proposals for new libraries.

Adding a new or updating an existing library

cdnJS relies on user's pull requests and automatic updating via npm to populate libraries. To add a new library, or update an existing library outside of npm, start by forking the cdnJS repo to your own GitHub account.

If you're adding/modifying outside of the GitHub browser interface, for example on the command line or with the GitHub desktop app, you will need to additionally install node locally. For more information on installing node, please refer to nodejs.org.

When you have forked the cdnJS repo, add your library to it. Libraries are stored in the ajax/libs directory. Each library has its own subdirectory of ajax/libs and each version of the library has its own subdirectory of the library directory name, for example:

/ajax/libs/jquery/2.0.0/

Conventions

You should consider the following when adding to or updating the library:

  • Filenames should not include a version number and be lowercase. This is OK: useful.min.js, but this is not: useful-2.0.1.min.js.

  • JavaScript & CSS files should be minified to reduce network and browser overhead. If the library doesn't already provide a minified version, cdnJS's preferred minifier is UglifyJS

  • If you are updating an existing library, try to keep consistent with the existing structure. There will be occasions, particularly with major version increments, where this is not practical; if there are significant changes in the file structure, please note this in your pull request.

Create or update package.json

Each library has a corresponding package.json, written in npm format (see test/schemata/npm-package.json for details or use another package.json to crib from - it's very simple). When an existing library is updated, the details in package.json should be checked and updated where required. For example, if a new version of the library is added, the version number may need changing.

Run npm test to check all is well

If you're updating the library outside of npm or the GitHub browser, you should run npm test from the library directory to ensure everything is OK. If you run npm test and see no errors, all is well; resolve any errors before you raise your pull request and re-run npm test to ensure everything works.

Pull request pre-flight checks

  • Have you followed the library directory structure?
  • Does a valid and accurate package.json exist for the library?
  • Have you minified JavaScript and CSS?
  • Did npm test check out OK?

...if so, you're ready to raise a pull request.

Raising a pull request

Please restrict your pull request to one library. From a maintenance standpoint, it's much more straightforward to process pull requests where there is one commit for one library.

In your pull request title, tell us what you're doing. If you are the author of the library, please add [author] to the pull request title.

Please include the following in your pull request:

  • The origin of your library files (e.g., where you downloaded it)
  • If it isn't clear, how you found the version of the script (e.g., Source: http://github.com/example/releases/1.2.3.zip)
  • Evidence of popularity if the GitHub numbers don't indicate popularity.

Enabling npm auto update

cdnJS automatically updates libraries that are known to be hosted on npm e.g., Lodash. This auto-update script runs automatically every 4 hours.

To add an npm hook to a library, update the package.json with configuration details and submit your pull request. An example configuration:

 // Lodash package.json
 // ...
  "npmName": "lodash",
  "npmFileMap": [{
    "basePath": "/dist/",
    "files": [
      "*.js"
    ]
  }],
  // ...
  • npmName should map to the name of the library on npm
  • npmFileMap is a list of files to take from the npm tarball and host on the CDN
  • basePath will be ignored when copying over to the CDN
  • files is a pattern matcher allowing selection of multiple files

The above example looks in the tarball whose structure might look like this:

- dist/lodash.js
- dist/lodash.min.js

The auto-update process will look for dist/* inside the named tarball and copy the JavaScript file(s) to cdnJS, minus the dist path. The resulting files in cdnJS will be:

ajax/libs/lodash.js/1.0.0/lodash.js
ajax/libs/lodash.js/1.0.0/lodash.min.js

Extensions, Plugins, Resources

Extensions, Plugins, Resources