@paroicms/server-image-cache-engine/dist/image-processor-setup.js

The image variant engine that we use at Paroi.

import { createAsyncQueue } from "@paroi/async-lib";
import sharp from "sharp";
export let sharpQueue = execImmediately;
export function setupImageProcessor({ cpuCoresPerFile, allowConcurrency, logger, }) {
    const oldValue = sharp.concurrency();
    if (cpuCoresPerFile !== undefined) {
        // https://sharp.pixelplumbing.com/api-utility#concurrency
        sharp.concurrency(cpuCoresPerFile);
        logger.debug(`Set sharp concurrency (cpu cores per file) to '${cpuCoresPerFile}' (was ${oldValue})`);
    }
    else if (oldValue > 1) {
        logger.debug(`Use the sharp concurrency (cpu cores per file) default value: ${oldValue}`);
    }
    if (!allowConcurrency) {
        sharpQueue = createAsyncQueue({
            delayMs: 50,
        });
        logger.debug(`Mode "one image processing at a time" is enabled`);
    }
}
function execImmediately(task) {
    return task();
}
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