bundlewatch/lib/app/analyze/index.js

Keep watch of your bundle size

'use strict';

Object.defineProperty(exports, "__esModule", {
    value: true
});

var _bytes = require('bytes');

var _bytes2 = _interopRequireDefault(_bytes);

var _analyzeFiles = require('./analyzeFiles');

var _analyzeFiles2 = _interopRequireDefault(_analyzeFiles);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

const getOverallStatus = fileResults => {
    return fileResults.reduce((status, fileResult) => {
        if (status === _analyzeFiles.STATUSES.FAIL || fileResult.status === _analyzeFiles.STATUSES.FAIL) {
            return _analyzeFiles.STATUSES.FAIL;
        }
        if (status === _analyzeFiles.STATUSES.WARN || fileResult.status === _analyzeFiles.STATUSES.WARN) {
            return _analyzeFiles.STATUSES.WARN;
        }
        return _analyzeFiles.STATUSES.PASS;
    }, _analyzeFiles.STATUSES.PASS);
};

const getOverallDifference = fullResults => {
    let totalAdded = 0;
    let totalRemoved = 0;
    fullResults.forEach(fileResult => {
        if (fileResult.size < fileResult.baseBranchSize) {
            totalRemoved += fileResult.baseBranchSize - fileResult.size;
        } else {
            totalAdded += fileResult.size - fileResult.baseBranchSize;
        }
    });
    return {
        totalAdded,
        totalRemoved
    };
};

const getSummary = ({ overallStatus, fullResults, baseBranchName }) => {
    if (overallStatus === _analyzeFiles.STATUSES.FAIL) {
        return `maxSize check failed`;
    }

    let differenceSummary = '';
    if (baseBranchName) {
        const { totalAdded, totalRemoved } = getOverallDifference(fullResults);
        differenceSummary = `(+${(0, _bytes2.default)(totalAdded)}, -${(0, _bytes2.default)(totalRemoved)})`;
    }

    if (overallStatus === _analyzeFiles.STATUSES.WARN) {
        return `File(s) have passed tolerance thresholds ${differenceSummary}`;
    }
    return `Everything is in check ${differenceSummary}`;
};

const analyze = ({
    currentBranchFileDetails,
    baseBranchFileDetails,
    baseBranchName
}) => {
    const fileResults = (0, _analyzeFiles2.default)({
        currentBranchFileDetails,
        baseBranchFileDetails,
        baseBranchName
    });

    const overallStatus = getOverallStatus(fileResults);
    const summary = getSummary({
        overallStatus,
        fullResults: fileResults,
        baseBranchName
    });

    return {
        status: overallStatus,
        fullResults: fileResults,
        summary
    };
};

exports.default = analyze;