Start building out Application type

src/SysInfoKit/Sources/Application.swift

@@ -0,0 +1,51 @@
+import AppKit
+import Foundation
+import Path
+import Version
+
+public struct Application {
+	public let name: String
+	public let version: Version
+	public let bundleIdentifier: String
+	public let path: AbsolutePath
+
+	public init(
+		name: String,
+		version: Version,
+		bundleIdentifier: String,
+		path: AbsolutePath
+	) {
+		self.name = name
+		self.version = version
+		self.bundleIdentifier = bundleIdentifier
+		self.path = path
+	}
+}
+
+public extension Application {
+	init(at path: AbsolutePath) throws {
+		self.path = path
+
+		let infoPlistPath = path.appending(components: "Contents", "Info.plist")
+		let infoPlistContents = try Data(contentsOf: infoPlistPath)
+		let infoPlist = try PropertyListDecoder().decode(ApplicationInfoPlist.self, from: infoPlistContents)
+
+		self.name = infoPlist.name
+		self.version = infoPlist.version
+		self.bundleIdentifier = infoPlist.bundleIdentifier
+	}
+
+	init(with bundleIdentifier: String) throws {
+		guard let url = NSWorkspace.shared.urlForApplication(withBundleIdentifier: bundleIdentifier) else {
+			throw NSError(domain: "ApplicationErrorDomain", code: 1, userInfo: [NSLocalizedDescriptionKey: "Application not found"])
+		}
+		let path = try AbsolutePath(validating: url.path())
+		try self.init(at: path)
+	}
+}
+
+public struct ApplicationInfoPlist: Decodable {
+	public let name: String
+	public let version: Version
+	public let bundleIdentifier: String
+}