39 lines
1.6 KiB
JavaScript
39 lines
1.6 KiB
JavaScript
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import URL from 'url-parse';
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export function getFilename(url) {
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const { pathname } = new URL(url, {});
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return pathname.substring(pathname.lastIndexOf('/') + 1);
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}
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export function getFileExtension(url) {
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const filename = getFilename(url);
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const dotIndex = filename.lastIndexOf('.');
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// Ignore leading dots for hidden files
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return dotIndex > 0 ? filename.substring(dotIndex) : '';
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}
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/**
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* Returns the base URL from a manifest's URL. For example, given a manifest hosted at
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* https://example.com/app/manifest.json, the base URL would be https://example.com/app/. Query
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* parameters and fragments also are removed.
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*
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* For an Expo-hosted project with a manifest hosted at https://expo.io/@user/project/index.exp, the
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* base URL would be https://expo.io/@user/project.
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*
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* We also normalize the "exp" protocol to "http" to handle internal URLs with the Expo schemes used
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* to tell the OS to open the URLs in the the Expo client.
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*/
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export function getManifestBaseUrl(manifestUrl) {
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const urlObject = new URL(manifestUrl, {});
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// Change the scheme to http(s) if it is exp(s)
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if (urlObject.protocol === 'exp:') {
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urlObject.set('protocol', 'http:');
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}
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else if (urlObject.protocol === 'exps:') {
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urlObject.set('protocol', 'https:');
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}
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// Trim filename, query parameters, and fragment, if any
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const directory = urlObject.pathname.substring(0, urlObject.pathname.lastIndexOf('/') + 1);
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urlObject.set('pathname', directory);
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urlObject.set('query', '');
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urlObject.set('hash', '');
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return urlObject.href;
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}
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//# sourceMappingURL=AssetUris.js.map
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