@codechecks/build-size-watcher/lib/getArtifactDiff.js

Keep your build size in check and detect when it gets too big

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const lodash_1 = require("lodash");
function getArtifactDiff(A, B = {}) {
    const totalSizeA = lodash_1.values(A)
        .map(f => f.overallSize)
        .reduce((a, b) => a + b, 0);
    const totalSizeB = lodash_1.values(B)
        .map(f => f.overallSize)
        .reduce((a, b) => a + b, 0);
    const totalSizeChange = totalSizeA - totalSizeB;
    const totalSizeChangeFraction = totalSizeB ? (totalSizeA - totalSizeB) / totalSizeB : 1;
    const files = {};
    for (const aKey of [...Object.keys(A), ...Object.keys(B)]) {
        const a = A[aKey];
        const b = B[aKey];
        if (a && b) {
            files[aKey] = {
                type: "changed",
                overallSize: a.overallSize,
                sizeChange: a.overallSize - b.overallSize,
                sizeChangeFraction: (a.overallSize - b.overallSize) / b.overallSize,
            };
        }
        else if (!b) {
            files[aKey] = {
                type: "new",
                overallSize: a.overallSize,
                sizeChange: a.overallSize,
                sizeChangeFraction: 1,
            };
        }
        else {
            files[aKey] = {
                type: "deleted",
                overallSize: 0,
                sizeChange: -1 * b.overallSize,
                sizeChangeFraction: -1,
            };
        }
    }
    return {
        totalSize: totalSizeA,
        totalSizeChange,
        totalSizeChangeFraction,
        files,
    };
}
exports.getArtifactDiff = getArtifactDiff;
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