Karma-Runner Summary by subdirectory

We have a large angular app, conveniently located in src/client/app. Karma currently runs "fine" -- it gives us a coverage summary with a percentage of results. Since it's a large project, we have 3 teams working in 3 subdirectories. How do I get a code coverage report for src/client/app/foo as compared with src/client/app/bar as compared with src/client/app/baz ?

I'd be satisfied with a result for each of the directories within src/client/app/*, if that's cleanest.

Thanks.

This is our current karma.conf.js:

module.exports = function(config) {
    var gulpConfig = require('./gulp.config')();
    var opts = {
        // base path that will be used to resolve all patterns (eg. files, exclude)
        basePath: './',

        client: {
        captureConsole: false
    },

    // frameworks to use
    // some available frameworks: http://ift.tt/1ft83uu
    frameworks: ['mocha', 'chai', 'sinon', 'chai-sinon', 'fixture'],

    // list of files / patterns to load in the browser
    files: gulpConfig.karma.files,

    // list of files to exclude
    exclude: gulpConfig.karma.exclude,

    proxies: {
        '/': 'http://localhost:8888/'
    },

    // preprocess matching files before serving them to the browser
    // available preprocessors: http://ift.tt/1gyw6MG
    preprocessors: gulpConfig.karma.preprocessors,

    jsonFixturesPreprocessor: {
        variableName: '__json__'
    },

    plugins: [
        'karma-phantomjs-launcher',
        'karma-chrome-launcher',
        'karma-coverage',
        'karma-mocha',
        'karma-chai',
        'karma-sinon',
        'karma-chai-sinon',
        'karma-fixture',
        'karma-html2js-preprocessor',
        'karma-json-fixtures-preprocessor',
        'karma-tang',
        'karma-tap-reporter'
    ],

    // test results reporter to use
    // possible values: 'dots', 'progress', 'coverage'
    // available reporters: http://ift.tt/1ft83KQ
    // bens - added verbose reporter, e.g. karma start --reporters verbose
    reporters: ['progress', 'coverage', 'tap'],

    coverageReporter: {
        dir: gulpConfig.karma.coverage.dir,
        reporters: gulpConfig.karma.coverage.reporters
    },

    tapReporter: {
        outputFile: './unit.tap',
        disableStdout: true
    },

    // web server port
    port: 9876,

    // enable / disable colors in the output (reporters and logs)
    colors: true,

    // level of logging
    // possible values: config.LOG_DISABLE || config.LOG_ERROR ||
    // config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
    logLevel: config.LOG_INFO,

    // enable / disable watching file and executing tests whenever any file changes
    autoWatch: true,

    // start these browsers
    // available browser launchers: http://ift.tt/1ft83KU
    //        browsers: ['Chrome', 'ChromeCanary', 'FirefoxAurora', 'Safari', 'PhantomJS'],
    browsers: ['PhantomJS'],

    // Continuous Integration mode
    // if true, Karma captures browsers, runs the tests and exits
    singleRun: false
};

if (process.env.console) {
    opts.client.captureConsole = true;
}

config.set(opts);

};