Xcode removing Package.resolved

Environment

• xcodegen version: 2.39.1
• Xcode version: 15.3

Description

I've encountered an issue where xcodegen fails to retain the CleverTapGeofence Swift Package Manager (SPM) dependency in the Package.resolved file of the generated Xcode project. The dependency is correctly specified in the .yml configuration file, and when dependencies are resolved directly through Xcode, the CleverTapGeofence package is successfully added. However, upon generating the project with xcodegen, this particular package is missing from Package.resolved.

Steps to Reproduce

1. Specify CleverTapGeofence package in the .yml configuration file for xcodegen.
2. Generate the Xcode project using xcodegen.
3. Observe that the CleverTapGeofence package is missing from Package.resolved in the generated project.

Expected Behavior

The CleverTapGeofence package, as specified in the .yml file, should be retained in the Package.resolved file of the generated project, similar to how it is retained when adding the package directly through Xcode's SPM integration.

Actual Behavior

The CleverTapGeofence package is missing from the Package.resolved file in the generated Xcode project, despite being specified in the .yml configuration file for xcodegen.

Additional Information

• .yml Configuration Snippet for CleverTapGeofence:

  packages:
     CleverTapGeofence:
        url: https://github.com/CleverTap/clevertap-geofence-ios.git
        from: 1.0.4

Start by reproducing the issue with the provided .yml configuration and inspect the generated Xcode project's Package.resolved file. Compare the generated result with Xcode's direct SPM resolution; done means the CleverTapGeofence dependency specified in the configuration is retained.