XcodeProject is a library for Xcode utility for read structure and it can be overwrite for`project.pbxproj.
And XcodeProject package has executable library about append and remove files and directory to your xcode project on CLI named by xcp.

Instanciate XcodeProject class. XcodeProject is necessary edit for project.pbxproj.

// Prepare for your project `project.pbxproj` file path.
let yourProjectPath = "/Users/bannzai/development/iOSProject/iOSProject.xcodeproj"
let pbxPath = yourProjectPath + "/project.pbxproj"
let xcodeprojectFileURL = URL(fileURLWithPath: pbxPath)

// Instanciate `XcodeProject`.
let xcodeproject = try XcodeProject(xcodeprojectURL: xcodeprojectFileURL)

Append file with relative wfile path from iOSProject.xcodeproject directory and build target name.

xcodeproject.appendFile(path: "iOSProject/Repository/UserRepository.swift", targetName: "iOSProject")

Remove file with relative wfile path from iOSProject.xcodeproject directory and build target name.

// append file with file path and build target name. 
xcodeproject.removeFile(path: "Config.swift", targetName: "iOSProject")

If you want overwrite project.pbxproj, You can call xcodeproject.write() method.

// Overwrite in pbxproj.
try xcodeproject.write()

Using mint.

$ mint install bannzai/XcodeProject

xcp --add-file <FILE_PATH> <BUILD_TARGET_NAME>

$ xcp --add-file iOSProject/Group/A.swift iOSProject.xcodeproj/project.pbxproj iOSProject 

xcp --add-group <FILE_PATH> <BUILD_TARGET_NAME>

$ xcp --add-group iOSProject/Group/ iOSProject.xcodeproj/project.pbxproj iOSProject

xcp --remove-file <FILE_PATH> <BUILD_TARGET_NAME>

$ xcp --remove-file iOSProject/Group/A.swift iOSProject.xcodeproj/project.pbxproj iOSProject 

xcp --remove-group <FILE_PATH> <BUILD_TARGET_NAME>

$ xcp --remove-group iOSProject/Group/ iOSProject.xcodeproj/project.pbxproj iOSProject

Kuri is code generate for iOS CleanArchitecture.

XcodeProject is available under the MIT license. See the LICENSE file for more info.