Update all your plugins for the latest Xcode beta with a single

script.swift

#!/usr/bin/env xcrun swift

// $ chmod +x script.swift
// $ ./script.swift
// or $ ./script.swift -xcode=/Applications/Xcode-beta.app

import Foundation

@noreturn private func failWithError(message: String) {
    print("🚫 \(message)")
    exit(EXIT_FAILURE)
}

private func warnWithMessage(message: String) {
    print("⚠️ \(message)")
}
let xcodeCompatibilityUUIDKey = "DVTPlugInCompatibilityUUID"
let pluginCompatibilityUUIDsKey = "DVTPlugInCompatibilityUUIDs"
let xcodeArgumentPrefix = "-xcode="

let arguments = Process.arguments
let xcodeArgument: String = arguments.filter{ $0.hasPrefix(xcodeArgumentPrefix) }.first ?? "\(xcodeArgumentPrefix)/Applications/Xcode.app"
let xcodePath = xcodeArgument.substringFromIndex(xcodeArgument.startIndex.advancedBy(xcodeArgumentPrefix.characters.count))
let xcodeInfoURL = NSURL(fileURLWithPath: xcodePath).URLByAppendingPathComponent("Contents/Info.plist")
print("Xcode: \(xcodePath)")

let fileManager = NSFileManager.defaultManager()

// Xcode Info.plist
guard let dic = NSDictionary(contentsOfURL: xcodeInfoURL), compatibilityUUIDValue = dic[xcodeCompatibilityUUIDKey] as? String else {
    failWithError("Failed to read \(xcodeCompatibilityUUIDKey) from \(xcodeInfoURL)")
}
print("DVTPlugInCompatibilityUUID: \(compatibilityUUIDValue)")

// Xcode plugins
let pluginsURL = NSURL(fileURLWithPath: ("~/Library/Application Support/Developer/Shared/Xcode/Plug-ins" as NSString).stringByExpandingTildeInPath)
guard let pluginURLs = try? fileManager.contentsOfDirectoryAtURL(pluginsURL, includingPropertiesForKeys: nil, options: [.SkipsSubdirectoryDescendants, .SkipsPackageDescendants]) else {
    failWithError("No Xcode plugins found at \(pluginsURL)")
}
for pluginURL in pluginURLs {
    if pluginURL.pathExtension != "xcplugin" {
        continue
    }
    guard let pluginName = (pluginURL.lastPathComponent as NSString?)?.stringByDeletingPathExtension else {
        continue
    }
    let pluginInfoPlistURL = pluginURL.URLByAppendingPathComponent("Contents/Info.plist")
    guard var pluginInfoPlist = NSMutableDictionary(contentsOfURL: pluginInfoPlistURL) else {
        warnWithMessage("Failed to read Info.plist at \(pluginInfoPlistURL)")
        continue
    }
    // Updating DVTPlugInCompatibilityUUIDs section if needed
    if pluginInfoPlist[pluginCompatibilityUUIDsKey] == nil {
        pluginInfoPlist[pluginCompatibilityUUIDsKey] = [compatibilityUUIDValue]
    } else if var compatibilityUUIDs = pluginInfoPlist[pluginCompatibilityUUIDsKey] as? [String] {
        if compatibilityUUIDs.contains(compatibilityUUIDValue) {
            print("\(pluginName) is already compatible")
            continue
        }
        compatibilityUUIDs.append(compatibilityUUIDValue)
        pluginInfoPlist[pluginCompatibilityUUIDsKey] = compatibilityUUIDs
    }
    guard let infoPlistData = try? NSPropertyListSerialization.dataWithPropertyList(pluginInfoPlist, format: .XMLFormat_v1_0, options: 0) else {
        failWithError("Failed to write Info.plist at \(pluginInfoPlistURL)")
    }
    do {
        try infoPlistData.writeToURL(pluginInfoPlistURL, options: [.DataWritingAtomic])
        print("\(pluginName) ✅")
    } catch {
        failWithError("Failed to write plugin Info plist at \(pluginInfoPlistURL)")
    }
}

exit(EXIT_SUCCESS)