Refresh list of backends by calling configureBackends() and some refactoring in installBackend

extensions/llamacpp-extension/src/index.ts

@@ -1047,28 +1047,33 @@ export default class llamacpp_extension extends AIEngine {
     const re = /^llama-(b\d+)-bin-(.+?)\.tar\.gz$/
     const archiveName = await basename(path)
 
-    let binPath: string
-
     if ((await fs.existsSync(path)) && path.endsWith('tar.gz')) {
       const match = re.exec(archiveName)
+      if (!match) throw new Error('Failed to parse archive name')
       const [, version, backend] = match
       if (!version && !backend) {
         throw new Error(`Invalid backend archive name: ${archiveName}`)
       }
       const backendDir = await getBackendDir(backend, version)
       await invoke('decompress', { path: path, outputDir: backendDir })
-      if (platformName == 'win')
-        binPath = await joinPath([
-          backendDir,
-          'build',
-          'bin',
-          'llama-server.exe',
-        ])
-      else
-        binPath = await joinPath([backendDir, 'build', 'bin', 'llama-server'])
+      const binPath =
+        platformName === 'win'
+          ? await joinPath([backendDir, 'build', 'bin', 'llama-server.exe'])
+          : await joinPath([backendDir, 'build', 'bin', 'llama-server'])
+
       if (!fs.existsSync(binPath)) {
+        await fs.rm(backendDir)
         throw new Error('Not a supported backend archive!')
       }
+      try {
+        await this.configureBackends()
+        logger.info(`Backend ${backend}/${version} installed and UI refreshed`)
+      } catch (e) {
+        logger.error('Backend installed but failed to refresh UI', e)
+        throw new Error(
+          `Backend installed but failed to refresh UI: ${String(e)}`
+        )
+      }
     }
   }