Chroma

A command line tool to generate .swift extensions or structs files from .xcassets on your UIKit, AppKIt or SwiftUI projects.

Usage

$ Chroma --help

USAGE: chroma --asset <asset> --path <path> [--type <type>] [--framework <framework>]

OPTIONS:
  -a, --asset <asset>     The path of .xcasset file.
  -p, --path <path>       The path of the generated .swift file.
  -t, --type <type>       The output type of generated .swift file.
                          Supported values: extension, struct. (default:
                          extension)
  --framework <framework> The framework compatibility of generated .swift file.
                          Supported values: AppKit, SwiftUI, UIKit. (default:
                          SwiftUI)
  -h, --help              Show help information.

Installation

Clone Chroma on your machine:

$ git clone https://github.com/jjotaum/Chroma.git

Navigate to it's directory:

$ cd Chroma

Execute install script

$ ./install.sh

Chroma should now be installed on /usr/local/bin and can be accessed via terminal.

$ chroma

Integrate Chroma on your Xcode Project

You can easily integrate Chroma on your Xcode project to maintain your generated files updated.

Select your project target on Xcode > go to Build Phases tab > Press on + > Select New Run Script Phase > Uncheck Based on dependency analysis option.

Copy & paste below command on your new script phase and update paths & platform parameters according to your needs.

chroma --asset MyProject/Assets.xcassets --path MyProject/Extensions/Colors.swift --framework SwiftUI

Optionally you can rename your new Run Script to Chroma.