59 lines
1.6 KiB
TypeScript
59 lines
1.6 KiB
TypeScript
import { expandGlob } from '$std/fs/mod.ts'
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import { SessionHandlers } from ':src/session/mod.ts'
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import { respondApi } from ':src/utils.ts'
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import { BUILD_ID } from '$fresh/src/server/build_id.ts'
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import { encodeBase64 } from '@std/encoding'
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export type PrecacheResponse = { version: string; preCachedUrls: string[] }
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async function getVersion() {
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const versionRaw = crypto.randomUUID() + BUILD_ID
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const versionBytes = new TextEncoder().encode(versionRaw)
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const versionHash = await crypto.subtle.digest('SHA-256', versionBytes)
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return encodeBase64(versionHash)
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}
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export const handler: SessionHandlers = {
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async GET() {
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try {
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const preCachedUrls: string[] = ['/', '/imports/markdown_css']
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const paths = ['/static/**', '/_fresh/static/**']
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const routes = '/routes/*/index.tsx'
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const version = await getVersion()
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//Pre-cache routes
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for await (const route of expandGlob(routes, { root: '.' })) {
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if (!route.isFile) continue
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//@ts-expect-error parentPath is missing from type definition
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preCachedUrls.push(strip(routes, route.parentPath))
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}
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// Pre-cache files
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for (const path of paths) {
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for await (const entry of expandGlob(path, { root: '.' })) {
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if (!entry.isFile) continue
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preCachedUrls.push(strip(path, entry.path))
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}
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}
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return respondApi<'success', PrecacheResponse>('success', {
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version,
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preCachedUrls,
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})
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} catch (error) {
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return respondApi('error', error)
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}
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},
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}
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function strip(root: string, path: string) {
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return path
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// Force unix/web separator
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.replaceAll('\\', '/')
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.replace(
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// Remove root slash and glob *
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root.slice(1).replaceAll('*', ''),
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'/',
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)
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}
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