single-page-markdown-website/lib/utilities/resolve-new-image-file-path.js

Create a nice single-page documentation website from one or more Markdown files

import path from 'path';
const imagesDirectoryName = 'images';
export function resolveNewImageFilePath(imageSrc, usedFilePaths) {
    let newFilePath = path.join(imagesDirectoryName, path.basename(imageSrc));
    if (usedFilePaths.indexOf(newFilePath) === -1) {
        return newFilePath;
    }
    const extension = path.extname(newFilePath);
    const basename = path.basename(newFilePath, extension);
    let index = 0;
    do {
        index += 1;
        newFilePath = path.join(imagesDirectoryName, `${basename}-${index}${extension}`);
    } while (usedFilePaths.indexOf(newFilePath) !== -1);
    return newFilePath;
}
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