A small menubar app that allows you to switch between R versions quickly (if you have multiple versions of R framework installed).
https://rud.is/rswitch
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280 lines
11 KiB
280 lines
11 KiB
import Cocoa
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import SwiftSoup
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// Show an informational alert
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public func infoAlert(_ message: String, _ extra: String? = nil, style: NSAlert.Style = NSAlert.Style.informational) {
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let alert = NSAlert()
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alert.messageText = message
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if extra != nil { alert.informativeText = extra! }
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alert.alertStyle = style
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alert.runModal()
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}
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// Show an informational alert and then quit
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public func quitAlert(_ message: String, _ extra: String? = nil) {
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infoAlert(message, "The application will now quit.", style: NSAlert.Style.critical)
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NSApp.terminate(nil)
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}
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@NSApplicationMain
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class AppDelegate: NSObject, NSApplicationDelegate {
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var mainStoryboard: NSStoryboard!
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var abtController: NSWindowController!
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let macos_r_framework_dir = "/Library/Frameworks/R.framework/Versions" // Where the official R installs go
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let mac_r_project_url = "https://mac.r-project.org/"
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let macos_cran_url = "https://cran.rstudio.org/bin/macosx/"
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let r_sig_mac_url = "https://stat.ethz.ch/pipermail/r-sig-mac/"
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let rstudio_dailies_url = "https://dailies.rstudio.com/rstudio/oss/mac/"
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// Get the bar setup
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let statusItem = NSStatusBar.system.statusItem(withLength: NSStatusItem.variableLength)
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let statusMenu = NSMenu()
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let quitItem = NSMenuItem(title: NSLocalizedString("Quit", comment: "Quit menu item"), action: #selector(NSApp.terminate), keyEquivalent: "q")
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override init() {
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super.init()
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statusMenu.delegate = self
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// dial by IconMark from the Noun Project
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statusItem.button?.image = #imageLiteral(resourceName: "RSwitch")
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statusItem.menu = statusMenu
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mainStoryboard = NSStoryboard(name: "Main", bundle: nil)
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abtController = (mainStoryboard.instantiateController(withIdentifier: "aboutPanelController") as! NSWindowController)
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}
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func applicationDidFinishLaunching(_ aNotification: Notification) {
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}
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func applicationWillTerminate(_ aNotification: Notification) {
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// Insert code here to tear down app
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}
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// The core worker function. Receives the basename of the selected directory
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// then removes the current alias and creates the new one.
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@objc func handleSwitch(_ sender: NSMenuItem?) {
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let fm = FileManager.default;
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let title = sender?.title
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do {
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try fm.removeItem(atPath: macos_r_framework_dir + "/" + "Current")
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} catch {
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infoAlert("Failed to remove 'Current' alias", macos_r_framework_dir + "/" + "Current")
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}
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do {
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try fm.createSymbolicLink(
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at: NSURL(fileURLWithPath: macos_r_framework_dir + "/" + "Current") as URL,
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withDestinationURL: NSURL(fileURLWithPath: macos_r_framework_dir + "/" + title!) as URL
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)
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} catch {
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infoAlert("Failed to create alias for " + macos_r_framework_dir + "/" + title!)
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}
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}
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// browse macOS dev page
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@objc func browse_r_macos_dev_page(_ sender: NSMenuItem?) {
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let url = URL(string: mac_r_project_url)!
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NSWorkspace.shared.open(url)
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}
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// browse macOS dev page
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@objc func browse_r_macos_cran_page(_ sender: NSMenuItem?) {
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let url = URL(string: macos_cran_url)!
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NSWorkspace.shared.open(url)
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}
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// browse macOS dev page
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@objc func browse_r_sig_mac_page(_ sender: NSMenuItem?) {
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let url = URL(string: r_sig_mac_url)!
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NSWorkspace.shared.open(url)
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}
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// browse RStudio macOS Dailies
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@objc func browse_rstudio_mac_dailies_page(_ sender: NSMenuItem?) {
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let url = URL(string: rstudio_dailies_url)!
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NSWorkspace.shared.open(url)
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}
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// Show about dialog
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@objc func about(_ sender: NSMenuItem?) {
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abtController.showWindow(self)
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}
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// Show the framework dir in a new Finder window
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@objc func openFrameworksDir(_ sender: NSMenuItem?) {
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NSWorkspace.shared.openFile(macos_r_framework_dir, withApplication: "Finder")
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}
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// Download latest rstudio daily build
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@objc func download_latest_rstudio(_ sender: NSMenuItem?) {
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let url = URL(string: rstudio_dailies_url)
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do {
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let html = try String.init(contentsOf: url!)
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let document = try SwiftSoup.parse(html)
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let link = try document.select("td > a").first!
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let href = try link.attr("href")
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let dlurl = URL(string: href)!
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let dldir = FileManager.default.urls(for: .downloadsDirectory, in: .userDomainMask).first!
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var dlfile = dldir
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dlfile.appendPathComponent(dlurl.lastPathComponent)
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if (FileManager.default.fileExists(atPath: dlfile.relativePath)) {
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infoAlert("A local copy of the latest RStudio daily already exists. Please remove or rename it if you wish to re-download it.")
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} else {
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let task = URLSession.shared.downloadTask(with: dlurl) { (tempURL, response, error) in
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if let tempURL = tempURL, error == nil {
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if ((response as? HTTPURLResponse)?.statusCode == 200) {
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do {
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try FileManager.default.copyItem(at: tempURL, to: dlfile)
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NSWorkspace.shared.openFile(dldir.path, withApplication: "Finder")
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DispatchQueue.main.async { infoAlert("Download of latest RStudio daily (" + dlurl.lastPathComponent + ") successful.") }
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} catch {
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DispatchQueue.main.async { infoAlert("Error downloading and saving latest RStudio daily.") }
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}
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} else {
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DispatchQueue.main.async { infoAlert("Latest RStudio daily not found.") }
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}
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} else {
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DispatchQueue.main.async { infoAlert("Error downloading latest RStudio daily.") }
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}
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}
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task.resume()
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}
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} catch {
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DispatchQueue.main.async { infoAlert("Error downloading latrest RStudio daily.") }
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}
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}
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// Download latest r-devel tarball
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@objc func download_latest_tarball(_ sender: NSMenuItem?) {
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let url = URL(string: "https://mac.r-project.org/el-capitan/R-devel/R-devel-el-capitan-sa-x86_64.tar.gz")!
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let dldir = FileManager.default.urls(for: .downloadsDirectory, in: .userDomainMask).first!
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var dlfile = dldir
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dlfile.appendPathComponent("R-devel-el-capitan-sa-x86_64.tar.gz")
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if (FileManager.default.fileExists(atPath: dlfile.relativePath)) {
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infoAlert("R-devel tarball already exists. Please remove or rename it before downloading.")
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} else {
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let task = URLSession.shared.downloadTask(with: url) { (tempURL, response, error) in
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if let tempURL = tempURL, error == nil {
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if ((response as? HTTPURLResponse)?.statusCode == 200) {
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do {
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try FileManager.default.copyItem(at: tempURL, to: dlfile)
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NSWorkspace.shared.openFile(dldir.path, withApplication: "Finder")
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DispatchQueue.main.async { infoAlert("Download of latest r-devel successful.") }
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} catch {
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DispatchQueue.main.async { infoAlert("Error downloading and saving latest r-devel .") }
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}
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} else {
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DispatchQueue.main.async { infoAlert("Latest r-devel file not found.") }
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}
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} else {
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DispatchQueue.main.async { infoAlert("Error downloading latest r-devel .") }
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}
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}
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task.resume()
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}
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}
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}
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extension AppDelegate: NSMenuDelegate {
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func menuWillOpen(_ menu: NSMenu) {
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if (menu != self.statusMenu) { return }
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// clear the menu
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menu.removeAllItems()
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// add selection to open frameworks dir in Finder
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menu.addItem(NSMenuItem(title: "Open R Frameworks Directory", action: #selector(openFrameworksDir), keyEquivalent: "" ))
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menu.addItem(NSMenuItem.separator())
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// populate installed versions
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let fm = FileManager.default
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var targetPath:String? = nil
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do {
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// gets a directory listing
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let entries = try fm.contentsOfDirectory(atPath: macos_r_framework_dir)
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// retrieves all versions (excludes hidden files and the Current alias
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let versions = entries.sorted().filter { !($0.hasPrefix(".")) && !($0 == "Current") }
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let hasCurrent = entries.filter { $0 == "Current" }
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// if there was a Current alias (prbly shld alert if not)
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if (hasCurrent.count > 0) {
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// get where Current points to
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let furl = NSURL(fileURLWithPath: macos_r_framework_dir + "/" + "Current")
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if (furl.fileReferenceURL() != nil) {
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do {
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let fdat = try NSURL(resolvingAliasFileAt: furl as URL, options: [])
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targetPath = fdat.lastPathComponent!
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} catch {
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targetPath = furl.path
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}
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}
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// populate menu items with all installed R versions, ensuring we
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// put a checkbox next to the one that is Current
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var i = 1
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for version in versions {
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let keynum = (i < 10) ? String(i) : ""
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let item = NSMenuItem(title: version, action: #selector(handleSwitch), keyEquivalent: keynum)
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item.isEnabled = true
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if (version == targetPath) { item.state = NSControl.StateValue.on }
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item.representedObject = version
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menu.addItem(item)
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i = i + 1
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}
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}
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} catch {
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quitAlert("Failed to list contents of R framework directory. You either do not have R installed or have incorrect permissions set on " + macos_r_framework_dir)
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}
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// Add items to download latest r-devel tarball and latest macOS daily
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menu.addItem(NSMenuItem.separator())
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menu.addItem(NSMenuItem(title: NSLocalizedString("Download latest R-devel tarball", comment: "Download latest tarball item"), action: #selector(download_latest_tarball), keyEquivalent: ""))
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menu.addItem(NSMenuItem(title: NSLocalizedString("Download latest RStudio daily build", comment: "Download latest RStudio item"), action: #selector(download_latest_rstudio), keyEquivalent: ""))
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// Add items to open variosu R for macOS pages
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menu.addItem(NSMenuItem.separator())
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menu.addItem(NSMenuItem(title: NSLocalizedString("Open R for macOS Developers Page…", comment: "Open macOS Dev Page item"), action: #selector(browse_r_macos_dev_page), keyEquivalent: ""))
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menu.addItem(NSMenuItem(title: NSLocalizedString("Open R for macOS CRAN Page…", comment: "Open macOS CRAN Page item"), action: #selector(browse_r_macos_cran_page), keyEquivalent: ""))
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menu.addItem(NSMenuItem(title: NSLocalizedString("Open R-SIG-Mac Archives Page…", comment: "Open R-SIG-Mac Page item"), action: #selector(browse_r_sig_mac_page), keyEquivalent: ""))
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menu.addItem(NSMenuItem(title: NSLocalizedString("Open RStudio macOS Dailies Page…", comment: "Open RStudio macOS Dailies Page item"), action: #selector(browse_rstudio_mac_dailies_page), keyEquivalent: ""))
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// Add a About item
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menu.addItem(NSMenuItem.separator())
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menu.addItem(NSMenuItem(title: NSLocalizedString("About RSwitch…", comment: "About menu item"), action: #selector(about), keyEquivalent: ""))
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// Add a Quit item
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menu.addItem(NSMenuItem.separator())
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menu.addItem(quitItem)
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}
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}
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