Guide to leveraging various build targets while executing the capacitor sync command within an Angular project

In my current Angular project, I have been utilizing Capacitor. Within my angular.json file, I have set up various build targets such as development, staging, and production. To deploy with different configurations, I use the command

ng build --configuration=<target_name>
.

Now, I am looking to achieve a similar functionality in Capacitor where I can create different builds based on the target. To do this, I made updates to my environment file(s) like so:

export const environment = {
  target: 'development',
  // ...
}

I also made changes to the capacitor.config.ts file:

import { CapacitorConfig } from '@capacitor/cli';
import {environment} from "./src/environments/environment";

const config: CapacitorConfig = {
  webDir: `dist/${environment.target}`,
  // ...
}

However, I encountered an issue where the webDir always defaults to dist/development because I couldn't find a way to specify the build target when updating my capacitor project. This means that the environment file used is always environment.ts, rather than being replaced by environment.production.ts if building for production.

Currently, I follow these steps to build for my desired target:

  1. To build for a specific target:
npx ng build --configuration=<build_target>
  1. Manually update the capacitor.config.ts file:
import { CapacitorConfig } from '@capacitor/cli';

const config: CapacitorConfig = {
  webDir: 'dist/<build_target>',
  // ...
}
  1. Then synchronize the Capacitor project:
npx cap sync ios

Answer №1

When it comes to the replacement of environment files, Angular handles it within the src folder specifically.

Capacitor, on the other hand, is framework agnostic and does not have any knowledge of this file replacement process done by Angular. Additionally, Angular does not replace files located outside the src folder (such as capacitor.config.ts).

To work around this, you will need to use a different approach that does not rely on Angular's file replacement mechanism. For example, you can try the following:

import { environment as devEnvironment } from './src/environments/environment';
import { environment as prodEnvironment } from './src/environments/environment.prod';

const environment = process.env.NODE_ENV === 'production' ? prodEnvironment : devEnvironment;

After implementing this change, you can run the sync command like this:

NODE_ENV=production npx cap sync android

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