Stubbing out some ideas for the scraper

Package.swift

@@ -8,7 +8,8 @@ let package = Package(
     products: [
         // Products define the executables and libraries produced by a package, and make them visible to other packages.
         .library(name: "XcodeReleases", targets: ["XcodeReleases"]),
-        .executable(name: "json-export", targets: ["json-export"])
+        .executable(name: "json-export", targets: ["json-export"]),
+        .executable(name: "xccheck", targets: ["xccheck"])
     ],
     dependencies: [
         // Dependencies declare other packages that this package depends on.
@@ -18,6 +19,7 @@ let package = Package(
         // Targets are the basic building blocks of a package. A target can define a module or a test suite.
         // Targets can depend on other targets in this package, and on products in packages which this package depends on.
         .target(name: "XcodeReleases", dependencies: []),
-        .target(name: "json-export", dependencies: ["XcodeReleases"])
+        .target(name: "json-export", dependencies: ["XcodeReleases"]),
+        .target(name: "xccheck", dependencies: ["XcodeReleases"])
     ]
 )

Sources/xccheck/Scraper.swift

@@ -0,0 +1,17 @@
+//
+//  File.swift
+//  
+//
+//  Created by David DeLong on 9/11/19.
+//
+
+import Foundation
+import WebKit
+
+class Scraper: NSObject, WKNavigationDelegate, WKUIDelegate {
+    
+    func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
+        
+    }
+    
+}

Sources/xccheck/Step.swift

@@ -0,0 +1,17 @@
+//
+//  Step.swift
+//  
+//
+//  Created by David DeLong on 9/11/19.
+//
+
+import Foundation
+import WebKit
+
+class Step: NSObject, WKNavigationDelegate {
+    
+    func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
+        // load up the new dom
+    }
+    
+}

Sources/xccheck/main.swift

@@ -0,0 +1,77 @@
+//
+//  main.swift
+//  
+//
+//  Created by Xcode Releases on 9/11/19.
+//
+
+import Foundation
+import WebKit
+import AppKit
+
+class XCCheckDelegate: NSObject, NSApplicationDelegate {
+    
+    var lastPrintedString: String?
+    func applicationDidFinishLaunching(_ notification: Notification) {
+        print("Hello world!")
+        printPercentage(0)
+    }
+    
+    func printPercentage(_ v: Int) {
+        guard v <= 100 else { return }
+        if let last = lastPrintedString {
+            print("\u{001B}[2K")
+            lastPrintedString = nil
+        }
+        let val = min(max(v, 0), 100)
+        let string = pieces(for: val)
+        print(string)
+        lastPrintedString = string
+        
+        DispatchQueue.main.asyncAfter(deadline: .now() + 0.125, execute: { self.printPercentage(v + 1) })
+    }
+    
+    private func pieces(for percentage: Int) -> String {
+        let value = CGFloat(percentage) / 8.0
+        let wholeBoxes = Int(floor(value))
+        var final = ""
+        for _ in 0 ..< wholeBoxes {
+            final.append("█")
+        }
+        let remaining = value - floor(value)
+        switch remaining {
+            case 0 ..< 0.125: final.append(" ")
+            case 0.125 ..< 0.25: final.append("▏")
+            case 0.25 ..< 0.375: final.append("▎")
+            case 0.375 ..< 0.5:  final.append("▍")
+            case 0.5 ..< 0.625:  final.append("▌")
+            case 0.625 ..< 0.75: final.append("▋")
+            case 0.75 ..< 0.875: final.append("▊")
+            case 0.875 ..< 1:   final.append("▉")
+            default: fatalError()
+        }
+        let remainingCharacterCount = 12 - final.count
+        if remainingCharacterCount > 0 {
+            let spaces = String(repeating: " ", count: remainingCharacterCount)
+            final.append(spaces)
+        }
+        final = "[" + final + "] "
+        
+        if percentage < 10 {
+            final += "  \(percentage)%"
+        } else if percentage < 100 {
+            final += " \(percentage)%"
+        } else {
+            final += "\(percentage)%"
+        }
+        
+        return final
+    }
+}
+
+print(CommandLine.arguments)
+
+var delegate: XCCheckDelegate? = XCCheckDelegate()
+NSApplication.shared.delegate = delegate
+NSApplication.shared.run()
+delegate = nil