FreeTube/_scripts/mime-db-shrinking-loader.js
absidue f381f5c085
Switch from deprecated standard to neostandard in ESLint config (#5890)
* Switch from deprecated standard to neostandard in ESLint config

* Update neostandard from 0.11.6 to 0.11.7
2024-10-27 11:08:50 -04:00

26 lines
953 B
JavaScript

/**
* electron-context-menu only needs mime-db for its save as feature.
* As we only activate save image and save as image features, we can remove all other mimetypes,
* as they will never get used.
* Which results in quite a significant reduction in file size.
* @param {string} source
*/
module.exports = function (source) {
const original = JSON.parse(source)
const reduced = {}
for (const mimeType of Object.keys(original)) {
if (mimeType.startsWith('image/') && original[mimeType].extensions &&
(!mimeType.startsWith('image/x-') || mimeType === 'image/x-icon' || mimeType === 'image/x-ms-bmp') &&
(!mimeType.startsWith('image/vnd.') || mimeType === 'image/vnd.microsoft.icon')) {
// Only the extensions field is needed, see: https://github.com/kevva/ext-list/blob/v2.2.2/index.js
reduced[mimeType] = {
extensions: original[mimeType].extensions
}
}
}
return JSON.stringify(reduced)
}