Question

我尝试通过打字稿初始化数据库库。

我的ts就像：

final class CameraView: UIView {
    
    private lazy var videoDataOutput: AVCaptureVideoDataOutput = {
        let v = AVCaptureVideoDataOutput()
        v.alwaysDiscardsLateVideoFrames = true
        v.setSampleBufferDelegate(self, queue: videoDataOutputQueue)
        v.connection(with: .video)?.isEnabled = true
        return v
    }()
    
    private lazy var session: AVCaptureSession = {
        let s = AVCaptureSession()
        s.sessionPreset = .hd1280x720 //.cif352x288 //.vga640x480
        s.automaticallyConfiguresApplicationAudioSession = false
        return s
    }()
    
    
    private lazy var previewLayer: AVCaptureVideoPreviewLayer = {
        let l = AVCaptureVideoPreviewLayer(session: session)
        l.videoGravity = .resizeAspect
        return l
    }()
    
    private let videoDataOutputQueue: DispatchQueue = DispatchQueue(label: "\(Bundle.main.bundleIdentifier ?? "").videoDataOutputQueue")
    private let captureDevice: AVCaptureDevice? = AVCaptureDevice.default(.builtInWideAngleCamera, for: .video, position: .front)
    private let audioCaptureDevice: AVCaptureDevice? = AVCaptureDevice.default(for: .audio)
    private var audioSession: AVAudioSession!
    
    var movieOutput = AVCaptureMovieFileOutput()
    
    
    override init(frame: CGRect) {
        super.init(frame: frame)
        commonInit()
    }
    
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        commonInit()
    }
    
    private func commonInit() {
        contentMode = .scaleAspectFit
        beginSession()
    }
    
    private func beginSession() {
        do {
            guard let captureDevice = captureDevice else { return }
            guard let audioCaptureDevice = audioCaptureDevice else { return }
            
            let deviceInput = try AVCaptureDeviceInput(device: captureDevice)
            if session.canAddInput(deviceInput) {
                session.addInput(deviceInput)
            }
            
            
            let aDeviceInput = try AVCaptureDeviceInput(device: audioCaptureDevice)
            
            audioSession = AVAudioSession.sharedInstance()
            do {
                if #available(iOS 11.0, *) {
                    try audioSession.setCategory(.playAndRecord, mode: .spokenAudio, policy: AVAudioSession.RouteSharingPolicy.default, options: [.duckOthers])
                } else {
                    try audioSession.setCategory(.playAndRecord, mode: .spokenAudio)
                }
                try audioSession.setActive(true)
            } catch let error {
                print("Audio setup error", #file, #function, #line, error.localizedDescription)
            }
            
            if session.canAddInput(aDeviceInput) {
                session.addInput(aDeviceInput)
            }
            
            if session.canAddOutput(videoDataOutput) {
                session.addOutput(videoDataOutput)
            }
            
            layer.masksToBounds = true
            layer.addSublayer(previewLayer)
            previewLayer.frame = bounds
            
            session.addOutput(movieOutput)
            session.startRunning()
            
            startRecording()
            
            
        } catch let error {
            debugPrint("\(self.self): \(#function) line: \(#line).  \(error.localizedDescription)")
        }
    }
    
    func startRecording() {
        // FileSys is class that find current working directory
        let exportURL = FileSys.getCurrentWorkingDir().appendingPathComponent("Feed.mov")
        var videoConnection: AVCaptureConnection?
        for connection in self.movieOutput.connections {
            for port in connection.inputPorts {
                if port.mediaType == AVMediaType.video {
                    videoConnection = connection
                    if videoConnection!.isVideoMirroringSupported {
                        videoConnection!.isVideoMirrored = true
                    }
                }
            }
        }
        
        videoConnection?.videoOrientation = .portrait
        movieOutput.startRecording(to: exportURL, recordingDelegate: self)
    }
    
    override func layoutSubviews() {
        super.layoutSubviews()
        previewLayer.frame = bounds
    }
}

extension CameraView: AVCaptureFileOutputRecordingDelegate {
    func fileOutput(_ output: AVCaptureFileOutput, didFinishRecordingTo outputFileURL: URL, from connections: [AVCaptureConnection], error: Error?) {
        print("FILE OUTPUT:", #function, error.debugDescription)
        print(outputFileURL.path)
    }
    
    
}

extension CameraView: AVCaptureVideoDataOutputSampleBufferDelegate {}

当我尝试通过ts-node运行脚本时，

import { User, UserRole } from '../entity/User';
import crypto from 'crypto';
import {dbManager, pwhash } from '..';

async function inituser() 
{
    const user = new User();
    user.email = 'sheng.lu@mq.edu.au';
    user.own_organization = []
    user.salt = crypto.randomBytes(16).toString('hex');
    user.password = pwhash("password", user.salt);
    user.role = UserRole.admin;
    await dbManager.save(user);
    const duser = await dbManager.findOne(User);
    return duser;
}
const duser = inituser();

console.log("Loaded users: ", duser);

存在以下错误：

npx ts-node db/initializers/inituser.ts

我在package.json文件中添加了“类型”：“模块”。

SyntaxError: Cannot use import statement outside a module
    at wrapSafe (internal/modules/cjs/loader.js:1167:16)
    at Module._compile (internal/modules/cjs/loader.js:1215:27)
    at Module.m._compile (/usr/lib/node_modules/ts-node/src/index.ts:858:23)
    at Module._extensions..js (internal/modules/cjs/loader.js:1272:10)
    at Object.require.extensions.<computed> [as .ts] (/usr/lib/node_modules/ts-node/src/index.ts:861:12)
    at Module.load (internal/modules/cjs/loader.js:1100:32)
    at Function.Module._load (internal/modules/cjs/loader.js:962:14)
    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:72:12)
    at main (/usr/lib/node_modules/ts-node/src/bin.ts:227:14)
    at Object.<anonymous> (/usr/lib/node_modules/ts-node/src/bin.ts:513:3)
root@MEDAIHILW237:/mnt/c/workgit/projeny# ts-node db/initializers/inituser.ts
TypeError [ERR_UNKNOWN_FILE_EXTENSION]: Unknown file extension ".ts" for /mnt/c/workgit/projeny/db/initializers/inituser.ts
    at Loader.defaultGetFormat [as _getFormat] (internal/modules/esm/get_format.js:65:15)
    at Loader.getFormat (internal/modules/esm/loader.js:101:42)
    at Loader.getModuleJob (internal/modules/esm/loader.js:230:31)
    at Loader.import (internal/modules/esm/loader.js:164:17)
    at Object.loadESM (internal/process/esm_loader.js:68:5)
root@MEDAIHILW237:/mnt/c/workgit/projeny# ts-node db/initializers/inituser
TypeError [ERR_UNKNOWN_FILE_EXTENSION]: Unknown file extension ".ts" for /mnt/c/workgit/projeny/db/initializers/inituser.ts
    at Loader.defaultGetFormat [as _getFormat] (internal/modules/esm/get_format.js:65:15)
    at Loader.getFormat (internal/modules/esm/loader.js:101:42)
    at Loader.getModuleJob (internal/modules/esm/loader.js:230:31)
    at Loader.import (internal/modules/esm/loader.js:164:17)
    at Object.loadESM (internal/process/esm_loader.js:68:5)

为了克服错误

{
  "name": "typescript-test",
  "version": "1.0.0",
  "type": "module",
...
}

Answer 1

错误Warning: To load an ES module, set "type": "module" in the package.json or是由ts节点中的以下错误引起的：https://github.com/TypeStrong/ts-node/issues/935

该bug已关闭，并且有解决方案，但仍处于打开状态：https://github.com/TypeStrong/ts-node/issues/1007

我不需要"type": "module"中的package.json，而是使用"module": "commonjs"而不是"module": "es6",中的tsconfig.json。我注意到这是技术债，有待解决ts-node问题＃1007。

ts-node使用模块导入和定义的模块执行打字稿

1 个答案: