gistfile1.js

// ==UserScript==
// @name       Typesafe GitHub CLA checker
// @namespace  http://typesafe.com/
// @version    1.6
// @description  Checks a GitHub committer to see if they've signed the CLA
// @match      https://github.com/scala/scala/pull/*
// @require    http://code.jquery.com/jquery-1.8.2.min.js
// @copyright  2012, James Roper <james@jazzy.id.au>
// ==/UserScript==

// Usage instructions: Modify the @match tag above to point to your projects pull requests (you can have
// multiple @match tags) and then install the script into greasemonkey/tampermonkey/etc.

var typseafeClaChecker = (function() {
    var checkCla = function(user, signed, signedold, notsigned) {
        GM_xmlhttpRequest({
            method: "GET",
            url: "http://typesafe.com/contribute/cla/scala/check/" + user,
            onload: function(response) {
                var responseJson = JSON.parse(response.responseText);
                if (responseJson.signed) {
                    var currentVersion = responseJson.currentVersion;
                    if (!currentVersion) {
                        currentVersion = "2.2";
                    }
                    if (responseJson.version == currentVersion) {
                        signed(responseJson.version);
                    } else {
                        signedold(responseJson.version, currentVersion);
                    }
                } else {
                    notsigned();
                }
            }
        });
    }

    var prepareCommentBox = function(text) {
        var commentBox = $('textarea[name="comment[body]"]');
        if (commentBox.val() == null || commentBox.val() == "") {
            commentBox.val(text);
        }
    }
    
    var author;
    author = $(".pull-header-username").first();
    if (author) {
        var user = author.text().trim();        
        var checkButton = $('<a href="#" class="minibutton">Check CLA for ' + user + '</a>');
        var checkDiv = $("<div>");
        checkDiv.css({"margin-top": "15px"});
        checkButton.click(function() {
            checkDiv.text("Checking...");
            checkCla(user, function(version) {
                checkDiv.text(user + " has signed version " + version + " of the Scala CLA");
                checkDiv.css({ color: "green", "font-weight": "bold"});
            }, function(oldVersion, newVersion) {
                checkDiv.text(user + " has signed version " + oldVersion + " of the Scala CLA, but the current version is " + newVersion);
                checkDiv.css({ color: "orange", "font-weight": "bold"});
                prepareCommentBox("Hi @" + user + ",\n\nThankyou for your contribution.  We see that you have signed our CLA before, however the CLA has since been updated.  Would you mind reviewing the new version and signing it?\n\nhttp://www.typesafe.com/contribute/cla/scala\n\nThanks!");
            }, function() {
                checkDiv.text(user + " has not signed the Scala CLA");
                checkDiv.css({ color: "red", "font-weight": "bold"});
                prepareCommentBox("Hi @" + user + ",\n\nThankyou for your contribution.  Would you mind signing our CLA?\n\nhttp://www.typesafe.com/contribute/cla/scala\n\nThanks!");
            });
        });
        checkDiv.append(checkButton);
        $("#partial-discussion-header").first().append(checkDiv);
    }
})();