fix(desktop): avoid main util ts import

packages/app/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@opencode-ai/app",
-  "version": "0.2.6",
+  "version": "0.2.7",
   "description": "",
   "type": "module",
   "exports": {

packages/desktop-electron/package.json

@@ -1,7 +1,7 @@
 {
   "name": "@opencode-ai/desktop-electron",
   "private": true,
-  "version": "0.2.6",
+  "version": "0.2.7",
   "type": "module",
   "license": "Apache-2.0",
   "homepage": "https://pawwork.ai",

packages/desktop-electron/src/main/attachment-mime.test.ts

@@ -0,0 +1,40 @@
+import { describe, expect, test } from "bun:test"
+
+import { IMAGE_EXTS } from "@opencode-ai/util/file-extensions"
+
+import { attachmentPathMime, MIME_BY_EXTENSION } from "./attachment-mime"
+
+describe("attachmentPathMime", () => {
+  test("returns MIME types for direct attachment files", () => {
+    expect(attachmentPathMime("/tmp/image.gif")).toBe("image/gif")
+    expect(attachmentPathMime("/tmp/image.jpeg")).toBe("image/jpeg")
+    expect(attachmentPathMime("/tmp/image.png")).toBe("image/png")
+    expect(attachmentPathMime("/tmp/image.JPG")).toBe("image/jpeg")
+    expect(attachmentPathMime("/tmp/image.webp")).toBe("image/webp")
+    expect(attachmentPathMime("/tmp/document.pdf")).toBe("application/pdf")
+  })
+
+  test("returns MIME types using an injected extension reader", () => {
+    const extname = (filepath: string) => filepath.slice(filepath.lastIndexOf("."))
+
+    expect(attachmentPathMime("C:\\tmp\\image.PNG", extname)).toBe("image/png")
+  })
+
+  test("keeps image MIME entries in sync with the renderer contract", () => {
+    const imageEntries = [...MIME_BY_EXTENSION.entries()]
+      .filter(([extension]) => extension !== "pdf")
+      .sort(([left], [right]) => left.localeCompare(right))
+
+    const rendererImageEntries = [...IMAGE_EXTS.entries()].sort(([left], [right]) => left.localeCompare(right))
+
+    expect(imageEntries).toEqual(rendererImageEntries)
+  })
+
+  test("returns undefined for unsupported extensions", () => {
+    expect(attachmentPathMime("/tmp/archive.zip")).toBeUndefined()
+  })
+
+  test("returns undefined for missing extensions", () => {
+    expect(attachmentPathMime("/tmp/no-extension")).toBeUndefined()
+  })
+})

packages/desktop-electron/src/main/attachment-mime.ts

@@ -0,0 +1,16 @@
+import path from "node:path"
+
+// Keep image entries in sync with packages/util/src/file-extensions.ts::IMAGE_EXTS.
+export const MIME_BY_EXTENSION = new Map([
+  ["gif", "image/gif"],
+  ["jpeg", "image/jpeg"],
+  ["jpg", "image/jpeg"],
+  ["pdf", "application/pdf"],
+  ["png", "image/png"],
+  ["webp", "image/webp"],
+])
+
+export function attachmentPathMime(filepath: string, extname = path.extname) {
+  const suffix = extname(filepath).slice(1).toLowerCase()
+  return MIME_BY_EXTENSION.get(suffix)
+}

packages/desktop-electron/src/main/ipc.ts

@@ -3,7 +3,6 @@ import path from "node:path"
 import { execFile } from "node:child_process"
 import { BrowserWindow, Notification, app, clipboard, dialog, ipcMain, shell } from "electron"
 import type { IpcMainEvent, IpcMainInvokeEvent } from "electron"
-import { IMAGE_EXTS } from "@opencode-ai/util/file-extensions"
 
 import type {
   DesktopContext,
@@ -14,6 +13,7 @@ import type {
   UpdateInfo,
   WslConfig,
 } from "../preload/types"
+import { attachmentPathMime } from "./attachment-mime"
 import { getStore } from "./store"
 import { setTitlebar } from "./windows"
 
@@ -34,12 +34,6 @@ function normalizeAttachmentPath(filepath: unknown) {
   return path.resolve(filepath)
 }
 
-function attachmentPathMime(filepath: string) {
-  const suffix = path.extname(filepath).slice(1).toLowerCase()
-  if (suffix === "pdf") return "application/pdf"
-  return IMAGE_EXTS.get(suffix)
-}
-
 type Deps = {
   killSidecar: () => void
   awaitInitialization: (sendStep: (step: InitStep) => void) => Promise<ServerReadyData>

packages/opencode/package.json

@@ -1,6 +1,6 @@
 {
   "$schema": "https://json.schemastore.org/package.json",
-  "version": "0.2.6",
+  "version": "0.2.7",
   "name": "opencode",
   "type": "module",
   "license": "Apache-2.0",

packages/util/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@opencode-ai/util",
-  "version": "0.2.6",
+  "version": "0.2.7",
   "private": true,
   "type": "module",
   "license": "Apache-2.0",