Add custom page/field to NSIS setup created with electron-builder

Question

I have created an Electron app which is packaged into an NSIS installer with electron-builder.

Now I would like to add a custom text field to the installer, where the us

Answer 1

I've been working on the same thing recently. Here's what I did:

First, use the include option to point to a .nsh file (I'm doing this in package.json):

{
  "build": {
    "appId": "...",
    "nsis": {
      "include": "build/installer.nsh"
    }
  }
}

Then you can put your custom NSIS code inside that .nsh file:

!include nsDialogs.nsh

XPStyle on

Var Dialog

Page custom myCustomPage

Function myCustomPage

    nsDialogs::Create 1018
    Pop $Dialog

    ${If} $Dialog == error
        Abort
    ${EndIf}

    ...

    nsDialogs::Show

FunctionEnd

Section
SectionEnd

I adapted code from Mevia's question when I was creating my custom page. This will make a page that appears before the actual installation (Mevia's problem), so you should be careful where you save the input data.

I believe that using include instead of a script is what allows you to write code for a single page, rather than having to write the entire installer script yourself.