Problem with Windows File Association & reading process.argv for opened file

[warrenbuckley]

Issue

• I use npmrun dist` to get electron-builder to build my NSI installer
• Install the app
• File associations all works fine
• Double click a .db file to get electron app to open
• In my index.html I have done an inline script to read out process.argv with <script>document.write(process.argv)</script>
• Example output (nothing in here suggests file was opened)

C:\Users\warre\AppData\Local\Programs\nucache.explorer.client\NuCache Explorer.exe,--type=renderer,--no-sandbox,--service-pipe-token=367FFCACF3CC5B851343F29AEE147251,--lang=en-US,--app-path=C:\Users\warre\AppData\Local\Programs\nucache.explorer.client\resources\app.asar,--node-integration=true,--webview-tag=true,--no-sandbox,--context-id=2,--enable-pinch,--device-scale-factor=1,--num-raster-threads=4,--enable-main-frame-before-activation,--content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;0,17,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;1,17,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;2,17,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;3,17,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553;4,17,3553,--enable-gpu-async-worker-context,--service-request-channel-token=367FFCACF3CC5B851343F29AEE147251,--renderer-client-id=4,--mojo-platform-channel-handle=2032,/prefetch:1

Version & Info

• Version:
  "electron-builder": "^20.23.1"
"electron-updater": "^3.0.3"

• Target:
  Windows - NSI

• Package JSON with build config

{
  "name": "nucache.explorer.client",
  "productName": "NuCache Explorer",
  "version": "1.0.0",
  "description": "An electron application to read Umbraco V8+ NuCache binary files",
  "main": "main.js",
  "scripts": {
    "start": "electron .",
    "pack": "electron-builder --dir",
    "dist": "electron-builder",
    "publish": "electron-builder --publish onTagOrDraft"
  },
  "repository": {
    "type": "git",
    "url": "git+https://github.com/warrenbuckley/Nucache.Explorer.git"
  },
  "keywords": [
    "umbraco",
    "umbraco-v8",
    "nucache",
    "electron",
    "electron-app"
  ],
  "author": "Warren Buckley",
  "license": "ISC",
  "bugs": {
    "url": "https://github.com/warrenbuckley/Nucache.Explorer/issues"
  },
  "homepage": "https://github.com/warrenbuckley/Nucache.Explorer#readme",
  "devDependencies": {
    "electron": "^2.0.5",
    "electron-builder": "^20.23.1"
  },
  "dependencies": {
    "codemirror": "^5.39.0",
    "electron-is-dev": "^0.3.0",
    "electron-log": "^2.2.16",
    "electron-reload": "^1.2.5",
    "electron-updater": "^3.0.3",
    "lodash": "^4.17.10",
    "node-fetch": "^2.1.2",
    "vue-codemirror": "^4.0.5"
  },
  "build": {
    "appId": "nucache.explorer",
    "productName": "NuCache Explorer",
    "extraResources": {
      "from": "../NuCache.Explorer.Server/bin/debug/",
      "to": "NuCache.Explorer.Server/bin/debug/",
      "filter": [
        "**/*"
      ]
    },
    "win": {
      "target": [
        "nsis"
      ]
    },
    "nsis": {
      "deleteAppDataOnUninstall": true,
      "createDesktopShortcut": true,
      "createStartMenuShortcut": true,
      "shortcutName": "NuCache Explorer",
      "artifactName": "NuCache.Explorer.Setup.${version}.${ext}",
      "uninstallDisplayName": "NuCache Explorer"
    },
    "fileAssociations": [
      {
        "name": "NuCache Explorer",
        "description": "NuCache Explorer File from Umbraco V8+",
        "ext": [
          "db"
        ]
      }
    ],
    "protocols": [
      {
        "name": "NuCache Explorer File URL",
        "schemes": [
          "nucache"
        ]
      }
    ]
  }
}

[warrenbuckley]

This was a an issue of my own and nothing to do with the builder. I had required ChildProcess but called it process, a silly error on my part.

[hz0324]

@warrenbuckley Hi, warren. I am working on a project that needs to asscoiate certain file type to Electron app as you did here. Your post have helped me alot.

But I ran into a problem, can you help me?
How did you get the filepath when the electron app started due to double click on the file?

Using your method, I can see the process.argv,but nothing related to file path.