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