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2e5e9fa88a
Summary: These files are some of the few standalone files from the `local-cli` that are used internally. This diff copies them into the one place where they are used. Note that I am leaving the old files in `local-cli`. Even if they are unused, moving them would break flow (require module verification). This diff also moves the `assetPathUtils` file into `Libraries/Image`, which is where it is used. This was previously part of D13337412 but I had to squash them to make buck happy. Reviewed By: TheSavior Differential Revision: D13337304 fbshipit-source-id: 2d501109ba7d4ba94ca7e8f2953258221947b90e
86 lines
2.0 KiB
JavaScript
86 lines
2.0 KiB
JavaScript
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @format
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* @flow strict
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*/
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'use strict';
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import type {PackagerAsset} from './AssetRegistry';
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/**
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* FIXME: using number to represent discrete scale numbers is fragile in essence because of
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* floating point numbers imprecision.
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*/
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function getAndroidAssetSuffix(scale: number): string {
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switch (scale) {
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case 0.75:
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return 'ldpi';
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case 1:
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return 'mdpi';
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case 1.5:
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return 'hdpi';
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case 2:
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return 'xhdpi';
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case 3:
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return 'xxhdpi';
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case 4:
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return 'xxxhdpi';
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}
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throw new Error('no such scale');
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}
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// See https://developer.android.com/guide/topics/resources/drawable-resource.html
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const drawableFileTypes = new Set([
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'gif',
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'jpeg',
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'jpg',
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'png',
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'svg',
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'webp',
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'xml',
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]);
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function getAndroidResourceFolderName(asset: PackagerAsset, scale: number) {
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if (!drawableFileTypes.has(asset.type)) {
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return 'raw';
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}
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var suffix = getAndroidAssetSuffix(scale);
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if (!suffix) {
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throw new Error(
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"Don't know which android drawable suffix to use for asset: " +
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JSON.stringify(asset),
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);
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}
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const androidFolder = 'drawable-' + suffix;
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return androidFolder;
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}
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function getAndroidResourceIdentifier(asset: PackagerAsset) {
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var folderPath = getBasePath(asset);
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return (folderPath + '/' + asset.name)
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.toLowerCase()
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.replace(/\//g, '_') // Encode folder structure in file name
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.replace(/([^a-z0-9_])/g, '') // Remove illegal chars
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.replace(/^assets_/, ''); // Remove "assets_" prefix
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}
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function getBasePath(asset: PackagerAsset) {
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var basePath = asset.httpServerLocation;
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if (basePath[0] === '/') {
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basePath = basePath.substr(1);
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}
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return basePath;
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}
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module.exports = {
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getAndroidAssetSuffix: getAndroidAssetSuffix,
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getAndroidResourceFolderName: getAndroidResourceFolderName,
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getAndroidResourceIdentifier: getAndroidResourceIdentifier,
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getBasePath: getBasePath,
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};
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