57 lines
2.5 KiB
JavaScript
57 lines
2.5 KiB
JavaScript
export function getFilename(url) {
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const { pathname, searchParams } = new URL(url, 'https://e');
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// When attached to a dev server, we use `unstable_path` to represent the file path. This ensures
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// the file name is not canonicalized by the browser.
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// NOTE(EvanBacon): This is technically not tied to `__DEV__` as it's possible to use this while bundling in production
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// mode.
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if (__DEV__) {
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if (searchParams.has('unstable_path')) {
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const encodedFilePath = decodeURIComponent(searchParams.get('unstable_path'));
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return getBasename(encodedFilePath);
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}
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}
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return getBasename(pathname);
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}
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function getBasename(pathname) {
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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://exp.host/@user/project/index.exp, the
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* base URL would be https://exp.host/@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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let nextProtocol = urlObject.protocol;
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// Change the scheme to http(s) if it is exp(s)
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if (nextProtocol === 'exp:') {
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nextProtocol = 'http:';
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}
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else if (nextProtocol === 'exps:') {
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nextProtocol = 'https:';
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}
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urlObject.protocol = nextProtocol;
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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.pathname = directory;
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urlObject.search = '';
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urlObject.hash = '';
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// The URL spec doesn't allow for changing the protocol to `http` or `https`
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// without a port set so instead, we'll just swap the protocol manually.
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return urlObject.protocol !== nextProtocol
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? urlObject.href.replace(urlObject.protocol, nextProtocol)
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: urlObject.href;
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}
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//# sourceMappingURL=AssetUris.js.map
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