Add Sparkle feed discovery and GitHub release integration

Package.swift

@@ -4,7 +4,7 @@ import PackageDescription
 let package = Package(
     name: "AutoUp",
     platforms: [
-        .macOS(.v13)
+        .macOS("13.3")
     ],
     products: [
         .executable(

Sources/Core/Brew.swift

@@ -0,0 +1,77 @@
+import Foundation
+
+enum Brew {
+    static func caskIsOutdated(_ cask: String) -> Bool {
+        let command = "brew outdated --cask --greedy --quiet | grep -x \(shellQuote(cask))"
+        return run(command).exitCode == 0
+    }
+
+    static func guessCask(from appName: String) -> String {
+        return appName.lowercased()
+            .replacingOccurrences(of: " ", with: "-")
+            .replacingOccurrences(of: ".", with: "")
+    }
+
+    static func getCaskInfo(_ cask: String) -> CaskInfo? {
+        let result = run("brew info --cask \(shellQuote(cask)) --json")
+        guard result.exitCode == 0,
+              let data = result.output.data(using: .utf8) else {
+            return nil
+        }
+
+        do {
+            let casks = try JSONDecoder().decode([CaskInfo].self, from: data)
+            return casks.first
+        } catch {
+            return nil
+        }
+    }
+
+    static func updateCask(_ cask: String) -> Bool {
+        let result = run("brew upgrade --cask \(shellQuote(cask))")
+        return result.exitCode == 0
+    }
+
+    static func isBrewInstalled() -> Bool {
+        return run("command -v brew").exitCode == 0
+    }
+
+    struct CaskInfo: Decodable {
+        let token: String
+        let full_name: String
+        let tap: String
+        let version: String
+        let installed: String?
+        let outdated: Bool
+        let homepage: String?
+        let url: String
+        let name: [String]
+        let desc: String?
+    }
+
+    private static func run(_ command: String) -> (exitCode: Int32, output: String) {
+        let task = Process()
+        task.launchPath = "/bin/zsh"
+        task.arguments = ["-lc", command]
+
+        let pipe = Pipe()
+        task.standardOutput = pipe
+        task.standardError = pipe
+
+        do {
+            try task.run()
+            task.waitUntilExit()
+
+            let data = pipe.fileHandleForReading.readDataToEndOfFile()
+            let output = String(data: data, encoding: .utf8) ?? ""
+
+            return (task.terminationStatus, output)
+        } catch {
+            return (-1, "")
+        }
+    }
+
+    private static func shellQuote(_ string: String) -> String {
+        return "'\(string.replacingOccurrences(of: "'", with: "'\\''"))'"
+    }
+}

Sources/Core/GitHub.swift

@@ -0,0 +1,82 @@
+import Foundation
+
+struct GitHub {
+    struct Release: Decodable {
+        let tag_name: String
+        let name: String?
+        let body: String?
+        let draft: Bool
+        let prerelease: Bool
+        let published_at: String?
+        let assets: [Asset]
+    }
+
+    struct Asset: Decodable {
+        let name: String
+        let browser_download_url: String
+        let content_type: String
+        let size: Int
+    }
+
+    static func latest(owner: String, repo: String, token: String? = nil) async throws -> Release {
+        var request = URLRequest(url: URL(string: "https://api.github.com/repos/\(owner)/\(repo)/releases/latest")!)
+        request.setValue("application/vnd.github+json", forHTTPHeaderField: "Accept")
+        request.setValue("AutoUp/1.0", forHTTPHeaderField: "User-Agent")
+
+        if let token = token {
+            request.setValue("Bearer \(token)", forHTTPHeaderField: "Authorization")
+        }
+
+        let (data, response) = try await URLSession.shared.data(for: request)
+
+        guard let httpResponse = response as? HTTPURLResponse else {
+            throw URLError(.badServerResponse)
+        }
+
+        if httpResponse.statusCode == 403 {
+            throw GitHubError.rateLimited
+        }
+
+        guard httpResponse.statusCode == 200 else {
+            throw GitHubError.apiError(httpResponse.statusCode)
+        }
+
+        return try JSONDecoder().decode(Release.self, from: data)
+    }
+
+    static func releases(owner: String, repo: String, count: Int = 10, token: String? = nil) async throws -> [Release] {
+        var request = URLRequest(url: URL(string: "https://api.github.com/repos/\(owner)/\(repo)/releases?per_page=\(count)")!)
+        request.setValue("application/vnd.github+json", forHTTPHeaderField: "Accept")
+        request.setValue("AutoUp/1.0", forHTTPHeaderField: "User-Agent")
+
+        if let token = token {
+            request.setValue("Bearer \(token)", forHTTPHeaderField: "Authorization")
+        }
+
+        let (data, response) = try await URLSession.shared.data(for: request)
+
+        guard let httpResponse = response as? HTTPURLResponse,
+              httpResponse.statusCode == 200 else {
+            throw URLError(.badServerResponse)
+        }
+
+        return try JSONDecoder().decode([Release].self, from: data)
+    }
+
+    enum GitHubError: LocalizedError {
+        case rateLimited
+        case apiError(Int)
+        case invalidRepo
+
+        var errorDescription: String? {
+            switch self {
+            case .rateLimited:
+                return "GitHub API rate limit exceeded"
+            case .apiError(let code):
+                return "GitHub API error: \(code)"
+            case .invalidRepo:
+                return "Invalid GitHub repository"
+            }
+        }
+    }
+}

Sources/Core/Installer.swift

@@ -0,0 +1,136 @@
+import Foundation
+
+enum InstallerError: LocalizedError {
+    case noAppFound
+    case dmgAttachFailed(Int32)
+    case pkgInstallFailed(Int32)
+    case codesignFailed
+    case backupFailed
+
+    var errorDescription: String? {
+        switch self {
+        case .noAppFound:
+            return "Couldn't find the app in the download"
+        case .dmgAttachFailed(let code):
+            return "DMG mount failed with code \(code)"
+        case .pkgInstallFailed(let code):
+            return "PKG install failed with code \(code)"
+        case .codesignFailed:
+            return "App signature verification failed"
+        case .backupFailed:
+            return "Couldn't backup current version"
+        }
+    }
+}
+
+enum Installer {
+    static func installZIP(from zipURL: URL, toApplications name: String, bundleID: String, currentVersion: String) throws {
+        // Create backup first
+        let currentAppPath = "/Applications/\(name).app"
+        if FileManager.default.fileExists(atPath: currentAppPath) {
+            _ = try? SecurityChecks.backup(appPath: currentAppPath, bundleID: bundleID, version: currentVersion)
+        }
+
+        let tmp = URL(fileURLWithPath: NSTemporaryDirectory()).appendingPathComponent(UUID().uuidString)
+        try FileManager.default.createDirectory(at: tmp, withIntermediateDirectories: true)
+        defer { try? FileManager.default.removeItem(at: tmp) }
+
+        _ = try run("/usr/bin/unzip", ["-qq", zipURL.path, "-d", tmp.path])
+        let app = try findApp(in: tmp)
+
+        // Verify codesign before installing
+        guard SecurityChecks.verifyCodeSign(app.path) else {
+            throw InstallerError.codesignFailed
+        }
+
+        try moveToApplications(app)
+    }
+
+    static func installDMG(from dmgURL: URL, bundleID: String, currentVersion: String) throws {
+        // Create backup first
+        let apps = try? FileManager.default.contentsOfDirectory(atPath: "/Applications")
+        let currentAppPath = apps?.first { $0.hasSuffix(".app") && Bundle(path: "/Applications/\($0)")?.bundleIdentifier == bundleID }
+
+        if let appPath = currentAppPath {
+            let fullPath = "/Applications/\(appPath)"
+            _ = try? SecurityChecks.backup(appPath: fullPath, bundleID: bundleID, version: currentVersion)
+        }
+
+        let (code, out) = try run("/usr/bin/hdiutil", ["attach", "-nobrowse", "-quiet", dmgURL.path])
+        guard code == 0 else {
+            throw InstallerError.dmgAttachFailed(code)
+        }
+
+        guard let mount = out.split(separator: "\t").last.map(String.init) else {
+            throw InstallerError.dmgAttachFailed(-1)
+        }
+
+        defer { _ = try? run("/usr/bin/hdiutil", ["detach", "-quiet", mount]) }
+
+        let app = try findApp(in: URL(fileURLWithPath: mount))
+
+        // Verify codesign before installing
+        guard SecurityChecks.verifyCodeSign(app.path) else {
+            throw InstallerError.codesignFailed
+        }
+
+        try moveToApplications(app)
+    }
+
+    static func installPKG(from pkgURL: URL) throws {
+        let (code, _) = try run("/usr/sbin/installer", ["-pkg", pkgURL.path, "-target", "/"])
+        guard code == 0 else {
+            throw InstallerError.pkgInstallFailed(code)
+        }
+    }
+
+    // MARK: - Private Helpers
+
+    private static func findApp(in dir: URL) throws -> URL {
+        let items = try FileManager.default.contentsOfDirectory(at: dir, includingPropertiesForKeys: nil)
+        if let app = items.first(where: { $0.pathExtension == "app" }) {
+            return app
+        }
+
+        // Recursive search in case of subfolders
+        for url in items where url.hasDirectoryPath {
+            if let app = try? findApp(in: url) {
+                return app
+            }
+        }
+
+        throw InstallerError.noAppFound
+    }
+
+    private static func moveToApplications(_ src: URL) throws {
+        let dst = URL(fileURLWithPath: "/Applications").appendingPathComponent(src.lastPathComponent)
+
+        if FileManager.default.fileExists(atPath: dst.path) {
+            try FileManager.default.removeItem(at: dst)
+        }
+
+        try FileManager.default.copyItem(at: src, to: dst)
+
+        // Remove quarantine if present
+        _ = SecurityChecks.removeQuarantine(dst.path)
+    }
+
+    @discardableResult
+    private static func run(_ bin: String, _ args: [String]) throws -> (Int32, String) {
+        let process = Process()
+        process.executableURL = URL(fileURLWithPath: bin)
+        process.arguments = args
+
+        let pipe = Pipe()
+        process.standardOutput = pipe
+        process.standardError = pipe
+
+        try process.run()
+        process.waitUntilExit()
+
+        let data = pipe.fileHandleForReading.readDataToEndOfFile()
+        let output = String(data: data, encoding: .utf8) ?? ""
+
+        return (process.terminationStatus, output)
+    }
+}

Sources/Core/RepoHints.swift

@@ -0,0 +1,76 @@
+import Foundation
+
+// Curated mapping of bundle IDs to GitHub repositories
+let RepoHints: [String: (owner: String, repo: String)] = [
+    // Developer Tools
+    "com.microsoft.VSCode": ("microsoft", "vscode"),
+    "com.github.GitHubDesktop": ("desktop", "desktop"),
+    "com.figma.Desktop": ("figma", "figma-linux"),
+    "com.postmanlabs.mac": ("postmanlabs", "postman-app-support"),
+
+    // Productivity
+    "com.raycast.macos": ("raycast", "raycast"),
+    "com.electron.reeder.5": ("reederapp", "reeder5"),
+    "com.culturedcode.ThingsMac": ("culturedcode", "things-mac"),
+    "com.flexibits.fantastical2.mac": ("flexibits", "fantastical-mac"),
+
+    // Media & Design
+    "org.blender": ("blender", "blender"),
+    "com.spotify.client": ("spotify", "spotify-desktop"),
+    "com.getdavinci.DaVinciResolve": ("blackmagicdesign", "davinci-resolve"),
+
+    // Communication
+    "com.tinyspeck.slackmacgap": ("slack", "slack-desktop"),
+    "com.microsoft.teams2": ("microsoft", "teams-desktop"),
+    "ru.keepcoder.Telegram": ("telegramdesktop", "tdesktop"),
+
+    // Utilities
+    "com.1password.1password": ("1password", "1password-desktop"),
+    "com.objective-see.lulu.app": ("objective-see", "lulu"),
+    "com.posthog.desktop": ("posthog", "posthog-desktop"),
+    "com.sindresorhus.CleanMyMac": ("sindresorhus", "cleanmymac"),
+
+    // Browsers
+    "com.google.Chrome": ("google", "chrome"),
+    "com.microsoft.edgemac": ("microsoft", "edge"),
+    "com.brave.Browser": ("brave", "brave-browser"),
+
+    // Open Source
+    "org.videolan.vlc": ("videolan", "vlc"),
+    "org.mozilla.firefox": ("mozilla", "firefox"),
+    "com.openemu.OpenEmu": ("openemu", "openemu"),
+]
+
+enum RepoDiscovery {
+    static func guessRepository(for bundleID: String, appName: String) -> (owner: String, repo: String)? {
+        // Check our curated list first
+        if let repo = RepoHints[bundleID] {
+            return repo
+        }
+
+        // Try common patterns
+        let cleanName = appName.lowercased()
+            .replacingOccurrences(of: " ", with: "-")
+            .replacingOccurrences(of: ".", with: "")
+
+        // Common organization patterns
+        let commonOwners = [
+            cleanName,
+            "\(cleanName)-team",
+            "\(cleanName)app",
+            "electron-apps"
+        ]
+
+        // Return first guess (caller should validate)
+        return (owner: commonOwners.first ?? cleanName, repo: cleanName)
+    }
+
+    static func validateRepository(owner: String, repo: String) async -> Bool {
+        do {
+            _ = try await GitHub.latest(owner: owner, repo: repo)
+            return true
+        } catch {
+            return false
+        }
+    }
+}