Initialize spyglass project and load vanilla-mcdoc

src/app/services/Spyglass.ts

@@ -0,0 +1,63 @@
+import * as core from '@spyglassmc/core'
+import { BrowserExternals } from '@spyglassmc/core/lib/browser.js'
+import * as mcdoc from '@spyglassmc/mcdoc'
+import * as zip from '@zip.js/zip.js'
+import { fetchVanillaMcdoc } from './index.js'
+
+const externals: core.Externals = {
+	...BrowserExternals,
+	archive: {
+		...BrowserExternals.archive,
+		async decompressBall(buffer, { stripLevel } = {}) {
+			const reader = new zip.ZipReader(new zip.BlobReader(new Blob([buffer])))
+			const entries = await reader.getEntries()
+			return await Promise.all(entries.map(async e => {
+				const data = await e.getData?.(new zip.Uint8ArrayWriter())
+				const path = stripLevel === 1 ? e.filename.substring(e.filename.indexOf('/') + 1) : e.filename
+				const type = e.directory ? 'dir' : 'file'
+				return { data, path, mtime: '', type, mode: 0 }
+			}))
+		},
+	},
+}
+
+export async function setupSpyglass() {
+	const logger: core.Logger = console
+	const profilers = new core.ProfilerFactory(logger, [
+		'project#init',
+		'project#ready',
+		'misode#setup',
+	])
+	const profiler = profilers.get('misode#setup')
+	const service = new core.Service({
+		logger,
+		profilers,
+		project: {
+			cacheRoot: 'file:cache/',
+			projectRoots: ['file:project/'],
+			externals: externals,
+			defaultConfig: core.ConfigService.merge(core.VanillaConfig, {
+				env: { dependencies: ['@vanilla-mcdoc'] },
+			}),
+			initializers: [mcdoc.initialize, initialize],
+		},
+	})
+	await service.project.ready()
+	profiler.task('Project ready')
+	await service.project.cacheService.save()
+	profiler.task('Save cache')
+	profiler.finalize()
+
+	service.logger.info(service.project.symbols.global)
+}
+
+const initialize: core.ProjectInitializer = async (ctx) => {
+	const { meta, externals, cacheRoot } = ctx
+
+	meta.registerDependencyProvider('@vanilla-mcdoc', async () => {
+		const uri: string = new core.Uri('downloads/vanilla-mcdoc.tar.gz', cacheRoot).toString()
+		const buffer = await fetchVanillaMcdoc()
+		await core.fileUtil.writeFile(externals, uri, new Uint8Array(buffer))
+		return { info: { startDepth: 1 }, uri }
+	})
+}