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zarjay / Jenkins Console Colors

// ==UserScript==
// @name        Jenkins Console Colors
// @namespace   http://openuserjs.org/users/zarjay/scripts
// @author      zarjay
// @version     2.0.0
// @description Adds colors to the Jenkins console output
// @match       http://*/*/job/*/console*
// @match       https://*/*/job/*/console*
// @license     MIT License; https://github.com/zarjay/userscripts/blob/master/LICENSE
// @updateURL   https://openuserjs.org/meta/zarjay/Jenkins_Console_Colors.meta.js
// ==/UserScript==

function css(content) {
    const element = document.createElement('style');
    element.textContent = content;
    document.head.appendChild(element);
}

function getType(line) {
    const markers = {
        error: [
            /\d Error/,
            /FAILED/,
            / error /,
            /^ERROR:/,
            /^Failed/,
            /[^0] failed/,
            /Finished: FAILURE/
        ],

        warning: [
            /\d Warning/,
            /\[SKIP]/
        ],

        success: [
            /^Passed/,
            / 0 failed/,
            /Build succeeded/,
            /Finished: SUCCESS/
        ],

        important: [
            /xUnit\.net console test runner/,
            /Test Execution Command Line Tool/,
            /Build Engine/,
            / 0 (Warning|Error)/,
            /^Build started/
        ],

        normal: [
            /^\s*\d+>/
        ]
    };

    for (const type in markers) {
        for (const pattern of markers[type]) {
            if (pattern.test(line)) {
                return type;
            }
        }
    }

    return 'minor';
}

function include(url) {
    return new Promise((resolve, reject) => {
        const element = document.createElement('script');
        element.src = url;
        element.async = false;
        element.onload = resolve;
        element.onerror = reject;
        document.head.appendChild(element);
    });
}

function parseBlock(block) {
    console.log('Processing text block', block);
    block.classList.add('parsed');

    const lines = block.innerHTML.split('\n');
    const html = [];
    let currentLine = 0;

    (function parseChunk() {
        for (let i = 0; i < 20; ++i, ++currentLine) {
            if (currentLine >= lines.length) {
                block.innerHTML = html.join('');
                return;
            }

            const line = lines[currentLine];
            const match = /^(\s*)(.*)/.exec(line);
            const className = `userscript-console-${getType(line)}`;
            const spaces = '&nbsp'.repeat(match[1].length);
            const content = ansi_up.ansi_to_html(match[2]);

            html.push(`<div class="${className}">${spaces}${content}</div>`);
        }

        setTimeout(parseChunk, 0);
    })();
}

function parseBlocks() {
    query('pre.console-output:not(.parsed), #out pre:not(.parsed)').forEach(parseBlock);
}

function query(selector) {
    return Array.from(document.querySelectorAll(selector));
}

css(`
    .userscript-console-minor { color: #666 }
    .userscript-console-normal { color: #000 }
    .userscript-console-important { color: #08C }
    .userscript-console-success { color: #080 }
    .userscript-console-warning { color: #F0F }
    .userscript-console-error { color: #F00 }
`);

include('https://cdn.rawgit.com/drudru/ansi_up/32a3c2deb983579fe6149fba4938ce0f840d2afd/ansi_up.js')
    .then(() => setInterval(parseBlocks, 200));