cli.js

var assign = require("object-assign");

// TODO: commander ?
var esVersion = process.argv.slice(2)[0] || "es6";
var command = process.argv.slice(2)[1] || "tests";
var commandParams = process.argv.slice(4);

//console.error("[DEBUG] esVersion:"+ esVersion + ",command:"+ command);

var data = require("./data-" + esVersion + ".js");

var browsers = data.browsers;
var tests = data.tests;

//console.error("[DEBUG] raw:"+ tests.length + ",browsers:"+ Object.keys(browsers).length);

var browserNames = Object.keys(data.browsers); // in es5 data they seem to be sorted well
// if not implement correct sorting (beware ie10 vs ie9 ;-)
//console.error("[DEBUG] browserNames:"+ browserNames);

var unsupported = browserNames.reduce(function(r, name) {
    r[name] = 0; // to distinguesh from null and false used by kangax
    return r;
}, {});

tests = tests.reduce(extractSubtests, []);
if (command !== "tests-raw-browsers") {
    tests.forEach(addHigherBrowserVersions);
    tests.forEach(addUnsupportedBrowsers);

}
//console.error("[DEBUG] extractSubtests:"+ tests.length + ",browsers:"+ Object.keys(browsers).length);


if (command === "browsers") {
    console.log(JSON.stringify(browsers, null, "\t"));
} else if (command === "tests" || command === "tests-raw-browsers") {
    if (commandParams) {
        var testFilter = commandParams[0];
        var browserFilter = commandParams[1];

        tests = tests.filter(function(test) {
            return (!testFilter || ~test.name.indexOf(testFilter)) && (!browserFilter || test.res[browserFilter]);
        });
    }
    console.log(JSON.stringify(tests, null, "\t"));
} else if (command === "matrix") {
    // anyway, this is the best cli ;-)) json sucks
    tests.forEach(function(test) {
        Object.keys(test.res).forEach(function(browser) {
            console.log("%s\t%s\t%s", test.name, browser, !! test.res[browser]);
        })
    });
} else {
    console.error("Unknown command " + command);
    process.exit(1);
}



function extractSubtests(r, test) {
    if (test.subtests) {
        test.subtests.forEach(function(subtest) {
            // TODO: nicer, this is old code when it was not array
            // merge subtest data with parents data
            var newTest = assign({}, test, subtest);
            newTest.name = test.name + " - " + subtest.name;
            delete newTest.subtests;
            r.push(newTest)
        });
    } else {
        r.push(test);
    }
    return r;
}

function addHigherBrowserVersions(test) {
    for (var browser in test.res) {
        if (test.res[browser] === true) {
            getHigherBrowserVersions(browser).forEach(addProperty, test.res);
        }
    }
}

function addUnsupportedBrowsers(test) {

    test.res = Object.assign({}, unsupported, test.res);
}

function getHigherBrowserVersions(browserName) {
    // not very effective, but seems working
    var index = browserNames.indexOf(browserName);
    var withoutVersion = browserName.replace(/[\d_]+(dev)?$/, ""); //dev because of es6 and chromeXXdev
    //console.error("[DEBUG] withoutVersion:"+withoutVersion)


    var r = browserNames.filter(function(name, i) {
        return i > index && ~name.indexOf(withoutVersion);
    });
    //if (withoutVersion === "opera") {
    // console.error("[DEBUG]: getHigherBrowserVersions: for " + browserName + " based on: " + withoutVersion + ",are:" + r)
    //}
    return r;
}

function addProperty(property) {
    // adds property==true to object 
    // but only if the property does not exists already
    //console.error("[DEBUG] adding property:"+property);
    property in this || (this[property] = true);
}