Function getDesktopVersion

src/utils/desktopDeepLink.ts:89–127

* Detect the installed Claude Desktop version. * On macOS, reads CFBundleShortVersionString from the app plist. * On Windows, finds the highest app-X.Y.Z directory in the Squirrel install. * Returns null if version cannot be determined.

()

 * Returns null if version cannot be determined.
 */
async function getDesktopVersion(): Promise<string | null> {
  const platform = process.platform

  if (platform === 'darwin') {
    const { code, stdout } = await execFileNoThrow('defaults', [
      'read',
      '/Applications/Claude.app/Contents/Info.plist',
      'CFBundleShortVersionString',
    ])
    if (code !== 0) {
      return null
    }
    const version = stdout.trim()
    return version.length > 0 ? version : null
  } else if (platform === 'win32') {
    const localAppData = process.env.LOCALAPPDATA
    if (!localAppData) {
      return null
    }
    const installDir = join(localAppData, 'AnthropicClaude')
    try {
      const entries = await readdir(installDir)
      const versions = entries
        .filter(e => e.startsWith('app-'))
        .map(e => e.slice(4))
        .filter(v => semverCoerce(v) !== null)
        .sort((a, b) => {
          const ca = semverCoerce(a)!
          const cb = semverCoerce(b)!
          return ca.compare(cb)
        })
      return versions.length > 0 ? versions[versions.length - 1]! : null
    } catch {
      return null
    }
  }

  return null
}

export type DesktopInstallStatus =
  | { status: 'not-installed' }