Dynamic change app version on LaunchScreen.storyboard or localizable storyboard when precompile

localizable.swift

import Foundation

guard let SRCROOT = ProcessInfo.processInfo.environment["SRCROOT"] else {
    fputs("not define SRCROOT\n", stderr)
    exit(-1)
}

guard let PROJECT_NAME = ProcessInfo.processInfo.environment["PROJECT_NAME"] else {
    fputs("not define PROJECT_NAME\n", stderr)
    exit(-1)
}

let projectDir = "\(SRCROOT)/\(PROJECT_NAME)"

guard
    let en = NSDictionary(contentsOfFile: "\(projectDir)/en.lproj/Localizable.strings"),
    var storyoards = try?  FileManager.default.contentsOfDirectory(atPath: "\(projectDir)/en.lproj")
else {
    exit(-1)
}

storyoards = storyoards.filter { (file) -> Bool in
        return file.hasSuffix(".strings")
    }.filter { (file) -> Bool in
        return !file.hasPrefix("Localizable.")
    }

guard var languages = try?  FileManager.default.contentsOfDirectory(atPath: "\(projectDir)")
    else {
        exit(-1)
}
languages = languages.filter { (file) -> Bool in
    return file.hasSuffix(".lproj")
    }.filter { (file) -> Bool in
        return !file.hasPrefix("en.") && !file.hasPrefix("Base.")
    }

for language in languages {
    guard
        let localizable = NSDictionary(contentsOfFile: "\(projectDir)/\(language)/Localizable.strings") else {
            continue
    }
    
    for storyoard in storyoards {
        let enXibPath = "\(projectDir)/en.lproj/\(storyoard)"
        
        guard
            var text = try? NSString(contentsOfFile: enXibPath, encoding: String.Encoding.utf8.rawValue),
            let xib = NSDictionary(contentsOfFile: enXibPath) else {
            continue
        }
        
        for (_, value) in xib {
            guard
                let value = value as? String,
                let locKey = en.allKeys(for: value).first as? String,
                let locValue = localizable.value(forKey: locKey) as? String
                else {
                continue
            }
            
            
            text = text.replacingOccurrences(of: "\"\(value)\"", with: "\"\(locValue)\"") as NSString
        }
        
        let newFile = "\(projectDir)/\(language)/\(storyoard)"
        try? FileManager.default.removeItem(atPath: newFile)
        try? text.write(toFile: newFile, atomically: false, encoding: String.Encoding.utf8.rawValue)
    }
}

precompile.swift

import Foundation

guard let SRCROOT = ProcessInfo.processInfo.environment["SRCROOT"] else {
fputs("not define SRCROOT\n", stderr)
exit(-1)
}

guard let PROJECT_NAME = ProcessInfo.processInfo.environment["PROJECT_NAME"] else {
fputs("not define PROJECT_NAME\n", stderr)
exit(-1)
}

let infoFile = "\(SRCROOT)/\(PROJECT_NAME)/info.plist"
guard let info = NSDictionary(contentsOfFile: infoFile) else {
fputs("info.plist not found\n", stderr)
exit(-1)
}

guard let version = info["CFBundleShortVersionString"] else {
fputs("version found\n", stderr)
exit(-1)
}

let storyBoardFile = "\(SRCROOT)/\(PROJECT_NAME)/Base.lproj/LaunchScreen.storyboard"
guard var storyBoard = try? String(contentsOfFile: storyBoardFile, encoding: .utf8) else {
fputs("cannot load storyBoard\n", stderr)
exit(-1)
}

guard let regex = try? NSRegularExpression(pattern: "text=\"Ver\\. [0-9]\\.[0-9]\\.[0-9]\"") else {
fputs("Regular Expression fail type\n", stderr)
exit(-1)
}
let totalRange = NSRange(location: 0, length: storyBoard.count)

let versionRange = regex.rangeOfFirstMatch(in: storyBoard, options: [], range:totalRange)
guard let range = Range(versionRange, in: storyBoard) else {
fputs("Regular Expression not found\n", stderr)
exit(-1)
}
storyBoard.replaceSubrange(range, with: "text=\"Ver. \(version)\"")

try? storyBoard.write(toFile: storyBoardFile, atomically: false, encoding: .utf8)

setup.md

• build phases
• run script sh: /usr/bin/env xcrun --sdk macosx swift