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Merge pull request #220 from eclipsesource/features/lazy-loading
Improve lazy loading of Monaco editor and fix webworker warning
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Original file line number | Diff line number | Diff line change |
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import fs from 'fs'; | ||
import * as vscode from 'vscode'; | ||
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// from https://github.com/vitejs/vite/blob/main/packages/vite/src/node/plugins/manifest.ts | ||
export type ViteManifest = Record<string, ViteManifestChunk>; | ||
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export interface ViteManifestChunk { | ||
src?: string; | ||
file: string; | ||
css?: string[]; | ||
assets?: string[]; | ||
isEntry?: boolean; | ||
name?: string; | ||
isDynamicEntry?: boolean; | ||
imports?: string[]; | ||
dynamicImports?: string[]; | ||
} | ||
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export interface ViteManifestEntry { | ||
source: string; | ||
chunk: ViteManifestChunk; | ||
} | ||
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export const ROOT_ENTRY = 'index.html'; | ||
export const EDITOR_WORKER_ENTRY = 'editor.worker.js?worker'; | ||
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export function parseBuildManifest(path: string): ViteManifest { | ||
return JSON.parse(fs.readFileSync(path, 'utf8')); | ||
} | ||
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export function findRootEntry(manifest: ViteManifest): ViteManifestEntry { | ||
const rootEntry = Object.entries(manifest).find(entry => entry[1].isEntry); | ||
return { source: rootEntry![0], chunk: rootEntry![1] }; | ||
} | ||
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export function findEditorWorkerWrapperChunk(manifest: ViteManifest): ViteManifestChunk | undefined { | ||
return Object.entries(manifest).find(entry => entry[0].endsWith(EDITOR_WORKER_ENTRY))?.[1]; | ||
} | ||
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export function findEditorWorker(appPath: vscode.Uri, manifest: ViteManifest): vscode.Uri | undefined { | ||
// Finding the location of the editor worker is a bit tricky as Vite automatically generates a wrapper for it | ||
// But for web views we need the actual code so we can turn it into a blob URL later on | ||
const workerWrapper = findEditorWorkerWrapperChunk(manifest); | ||
if (!workerWrapper) { | ||
return; | ||
} | ||
// find the editor worker file that is not the wrapper | ||
const assetsDirectory = vscode.Uri.joinPath(appPath, 'assets'); | ||
const assetFiles = fs.readdirSync(assetsDirectory.fsPath); | ||
const editorWorker = assetFiles.find(fileName => fileName.includes('editor.worker') && !workerWrapper.file.includes(fileName)); | ||
return editorWorker ? vscode.Uri.joinPath(assetsDirectory, editorWorker) : undefined; | ||
} |
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