pdf-visual-diff/lib/imageUtils/writeImages.js

Visual Regression Testing for PDFs in JavaScript

"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    var desc = Object.getOwnPropertyDescriptor(m, k);
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      desc = { enumerable: true, get: function() { return m[k]; } };
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    Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
    var ownKeys = function(o) {
        ownKeys = Object.getOwnPropertyNames || function (o) {
            var ar = [];
            for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
            return ar;
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        return ownKeys(o);
    };
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        if (mod && mod.__esModule) return mod;
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        __setModuleDefault(result, mod);
        return result;
    };
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.writeImages = void 0;
const path = __importStar(require("path"));
const mergeImages_1 = require("./mergeImages");
/**
 * Writes images to the specified output path.
 *
 * @returns A function that takes an array of Jimp images and returns a promise that resolves to void.
 */
const writeImages = (
/** The path where the images will be saved. */
outputImagePath, 
/**
 * Whether to combine all images into a single image.
 * @defaultValue true
 */
combinePages = true) => (images) => {
    if (combinePages === true) {
        // @ts-expect-error too smart types
        const outputImagePath0 = outputImagePath;
        return (0, mergeImages_1.mergeImages)(images).write(outputImagePath0);
    }
    const parsedPath = path.parse(outputImagePath);
    const partialName = path.join(parsedPath.dir, parsedPath.name);
    const padMaxLen = images.length.toString().length;
    return Promise.all(images.map((img, idx) => img.write(`${partialName}_${String(idx + 1).padStart(padMaxLen, '0')}.png`))).then(() => undefined);
};
exports.writeImages = writeImages;
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