An ERB precompiled AngularJS service for Rails allowing easy access to HTML templates fingerprinted by the Asset Pipeline.

fingerprintedTemplates.js

<%
  # Generate lookup Hash of fingerprinted filenames for html templates
  # Leave regexp open ended to include preprocessed templates (.erb, etc.)
  template_regexp = /(?:\/assets\/templates\/)(.*\.html)/
  template_files = Rails.application.assets.each_file.to_a.join("\n").scan(template_regexp).flatten
  templates = Hash[template_files.map {|file| [file, asset_url(file)] }]
%>
  
var fingerprintedTemplates = angular.module('services.fingerprintedTemplates', []);
fingerprintedTemplates.factory('fingerprintedTemplates', [
  '$q',
  '$http',
  '$templateCache',
  function($q, $http, $templateCache) {
    var templates = <%= templates.to_json %>; 

    return {
      load: function(templatePath) {
        var templateUrl = this.templateUrl(templatePath),
          deferred = $q.defer();
  
        $http.get(templateUrl, {cache: $templateCache}).success(function(response) {
          return deffered.resolve(response);
        });

        return deferred.promise;
      },  
      templateUrl: function(templatePath) {
        var url = templates[templatePath];

        if(!url) { throw 'Unknown fingerprinted template: ' + templatePath; }

        return url;
      }   
    };  
  }
]);