refactor(build): share Monaco public asset copy helper

packages/electron-app/electron.vite.config.ts

@@ -1,7 +1,7 @@
 import { defineConfig, externalizeDepsPlugin } from "electron-vite"
 import solid from "vite-plugin-solid"
 import { resolve } from "path"
-import fs from "fs"
+import { copyMonacoPublicAssets } from "../ui/scripts/monaco-public-assets.js"
 
 const uiRoot = resolve(__dirname, "../ui")
 const uiSrc = resolve(uiRoot, "src")
@@ -9,88 +9,28 @@ const uiRendererRoot = resolve(uiRoot, "src/renderer")
 const uiRendererEntry = resolve(uiRendererRoot, "index.html")
 const uiRendererLoadingEntry = resolve(uiRendererRoot, "loading.html")
 
-function copyMonacoPublicAssets(opts: { warn: (message: string) => void }) {
-  const publicDir = resolve(uiRendererRoot, "public")
-  const destRoot = resolve(publicDir, "monaco/vs")
-
-  const candidates = [
-    // Workspace root hoisted deps.
-    resolve(__dirname, "../../node_modules/monaco-editor/min/vs"),
-    // UI package local deps.
-    resolve(uiRoot, "node_modules/monaco-editor/min/vs"),
-  ]
-  const sourceRoot = candidates.find((p) => fs.existsSync(resolve(p, "loader.js")))
-  if (!sourceRoot) {
-    opts.warn("Monaco source directory not found; skipping copy")
-    return
-  }
-
-  const copyRecursive = (src: string, dest: string) => {
-    const stat = fs.statSync(src)
-    if (stat.isDirectory()) {
-      fs.mkdirSync(dest, { recursive: true })
-      for (const entry of fs.readdirSync(src)) {
-        copyRecursive(resolve(src, entry), resolve(dest, entry))
-      }
-      return
-    }
-    fs.copyFileSync(src, dest)
-  }
-
-  // Keep the working tree clean; these assets are generated.
-  try {
-    fs.rmSync(destRoot, { recursive: true, force: true })
-  } catch {
-    // ignore
-  }
-  fs.mkdirSync(destRoot, { recursive: true })
-
-  // Copy core Monaco runtime.
-  for (const dir of ["base", "editor", "platform"] as const) {
-    const src = resolve(sourceRoot, dir)
-    if (fs.existsSync(src)) {
-      copyRecursive(src, resolve(destRoot, dir))
-    }
-  }
-
-  // loader.js is required.
-  copyRecursive(resolve(sourceRoot, "loader.js"), resolve(destRoot, "loader.js"))
-
-  // Copy baseline rich language packages + workers.
-  for (const lang of ["typescript", "html", "json", "css"] as const) {
-    const src = resolve(sourceRoot, "language", lang)
-    if (fs.existsSync(src)) {
-      copyRecursive(src, resolve(destRoot, "language", lang))
-    }
-  }
-
-  // Copy baseline basic tokenizers.
-  for (const lang of ["python", "markdown", "cpp", "kotlin"] as const) {
-    const src = resolve(sourceRoot, "basic-languages", lang)
-    if (fs.existsSync(src)) {
-      copyRecursive(src, resolve(destRoot, "basic-languages", lang))
-    }
-  }
-
-  // Copy monaco.contribution.js entrypoints (needed by some loads).
-  const monacoContribution = resolve(sourceRoot, "basic-languages", "monaco.contribution.js")
-  if (fs.existsSync(monacoContribution)) {
-    copyRecursive(monacoContribution, resolve(destRoot, "basic-languages", "monaco.contribution.js"))
-  }
-  const underscoreContribution = resolve(sourceRoot, "basic-languages", "_.contribution.js")
-  if (fs.existsSync(underscoreContribution)) {
-    copyRecursive(underscoreContribution, resolve(destRoot, "basic-languages", "_.contribution.js"))
-  }
-}
-
 function prepareMonacoPublicAssets() {
   return {
     name: "prepare-monaco-public-assets",
     configureServer(server: any) {
-      copyMonacoPublicAssets({ warn: (msg) => server.config.logger.warn(msg) })
+      copyMonacoPublicAssets({
+        uiRendererRoot: uiRendererRoot,
+        warn: (msg: string) => server.config.logger.warn(msg),
+        sourceRoots: [
+          resolve(__dirname, "../../node_modules/monaco-editor/min/vs"),
+          resolve(uiRoot, "node_modules/monaco-editor/min/vs"),
+        ],
+      })
     },
     buildStart(this: any) {
-      copyMonacoPublicAssets({ warn: (msg) => this.warn(msg) })
+      copyMonacoPublicAssets({
+        uiRendererRoot: uiRendererRoot,
+        warn: (msg: string) => this.warn(msg),
+        sourceRoots: [
+          resolve(__dirname, "../../node_modules/monaco-editor/min/vs"),
+          resolve(uiRoot, "node_modules/monaco-editor/min/vs"),
+        ],
+      })
     },
   }
 }