vike
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The Framework *You* Control - Next.js & Nuxt alternative for unprecedented flexibility and dependability.
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JavaScript
// Unit tests at ./deduceRouteStringFromFilesystemPath.spec.ts
import { assert, higherFirst, slice } from './utils.js';
export { deduceRouteStringFromFilesystemPath };
// TODO/next-major-update: remove this and whole filesystemRoot mechanism
function deduceRouteStringFromFilesystemPath(pageId, filesystemRoots) {
// Handle Filesystem Routing Root
const filesystemRootsMatch = filesystemRoots
.filter(({ filesystemRoot }) => pageId.startsWith(filesystemRoot))
.sort(higherFirst(({ filesystemRoot }) => filesystemRoot.length));
const fsBase = filesystemRootsMatch[0];
let filesystemRoute;
if (fsBase) {
// Example values:
// - `{"pageId":"/pages/index","filesystemRoot":"/","urlRoot":"/client_portal"}`
const { filesystemRoot, urlRoot } = fsBase;
const debugInfo = { pageId, filesystemRoot, urlRoot };
assert(urlRoot.startsWith('/') && pageId.startsWith('/') && filesystemRoot.startsWith('/'), debugInfo);
assert(pageId.startsWith(filesystemRoot), debugInfo);
if (filesystemRoot !== '/') {
assert(!filesystemRoot.endsWith('/'), debugInfo);
filesystemRoute = slice(pageId, filesystemRoot.length, 0);
}
else {
filesystemRoute = pageId;
}
assert(filesystemRoute.startsWith('/'), debugInfo);
filesystemRoute = urlRoot + (urlRoot.endsWith('/') ? '' : '/') + slice(filesystemRoute, 1, 0);
}
else {
filesystemRoute = pageId;
}
assert(filesystemRoute.startsWith('/'));
// Remove `pages/`, `index/, and `src/`, directories
filesystemRoute = filesystemRoute
.split('/')
.filter((dir) => dir !== 'pages' && dir !== 'src' && dir !== 'index')
.join('/');
// Handle `/index.page.*` suffix
assert(!filesystemRoute.includes('.page.'));
assert(!filesystemRoute.endsWith('.'));
if (filesystemRoute.endsWith('/index')) {
filesystemRoute = slice(filesystemRoute, 0, -'/index'.length);
}
if (filesystemRoute === '') {
filesystemRoute = '/';
}
assert(filesystemRoute.startsWith('/'));
assert(!filesystemRoute.endsWith('/') || filesystemRoute === '/');
return filesystemRoute;
}