🎉 Initial working implementation

Author: technocidal

.gitignore

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+.DS_Store
+/.build
+/Packages
+xcuserdata/
+DerivedData/
+.swiftpm/configuration/registries.json
+.swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata
+.netrc

Package.resolved

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+{
+  "originHash" : "0889c55f02193be06d3ba97bfa3acd05f9e65a2dae7dc3c921ab42540a8fa453",
+  "pins" : [
+    {
+      "identity" : "swift-argument-parser",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/apple/swift-argument-parser.git",
+      "state" : {
+        "revision" : "0fbc8848e389af3bb55c182bc19ca9d5dc2f255b",
+        "version" : "1.4.0"
+      }
+    },
+    {
+      "identity" : "swift-cmark",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/swiftlang/swift-cmark.git",
+      "state" : {
+        "branch" : "gfm",
+        "revision" : "2c47322cb32cbed555f13bf5cbfaa488cc30a785"
+      }
+    },
+    {
+      "identity" : "swift-markdown",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/apple/swift-markdown.git",
+      "state" : {
+        "branch" : "main",
+        "revision" : "d21714073e0d16ba78eebdf36724863afc36871d"
+      }
+    }
+  ],
+  "version" : 3
+}

Package.swift

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+// swift-tools-version: 5.10
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+import PackageDescription
+
+let package = Package(
+    name: "swift-changelog-parser",
+    platforms: [.macOS(.v13)],
+    dependencies: [
+        .package(url: "https://github.com/apple/swift-markdown.git", branch: "main"),
+        .package(url: "https://github.com/apple/swift-argument-parser.git", .upToNextMajor(from: "1.4.0")),
+    ],
+    targets: [
+        // Targets are the basic building blocks of a package, defining a module or a test suite.
+        // Targets can depend on other targets in this package and products from dependencies.
+        .executableTarget(
+            name: "swift-changelog-parser",
+            dependencies: [.product(name: "Markdown", package: "swift-markdown"),
+                           .product(name: "ArgumentParser", package: "swift-argument-parser")]),
+    ]
+)

Sources/Changelog.swift

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+import Foundation
+import Markdown
+import ArgumentParser
+
+@main
+struct Changelog: ParsableCommand {
+    enum Release: ExpressibleByArgument, CustomStringConvertible {
+        case unreleased
+        case release(String)
+
+        var description: String {
+            switch self {
+            case .unreleased:
+                return defaultValueDescription
+            case let .release(value):
+                return value
+            }
+        }
+
+        var defaultValueDescription: String {
+            "unreleased"
+        }
+
+        init?(argument: String) {
+            switch argument.lowercased() {
+            case "unreleased":
+                self = .unreleased
+            default:
+                self = .release(argument)
+            }
+        }
+    }
+
+    @Argument(help: "Path to Changelog.md file")
+    var path: String
+
+    @Option(name: .shortAndLong, help: "Get a specific list of changes")
+    var release: Release = .unreleased
+
+    func validate() throws {
+        guard FileManager.default.fileExists(atPath: path) else {
+            throw ValidationError("Changelog does not exist at path \(path)")
+        }
+    }
+
+    func run() throws {
+        let document = try Document(parsing: URL(filePath: path))
+        let heading = document.children
+            .compactMap { $0 as? Heading }
+            .filter { $0.level == 2 }
+            .first { $0.plainText.lowercased() == release.description }
+
+        guard let heading else {
+            throw ValidationError("Changelog does not contain '\(release.description.localizedCapitalized)' section")
+        }
+
+        let list = document.child(at: heading.indexInParent + 1)
+        guard let list, list is UnorderedList else {
+            throw ValidationError("Changelog does not contain elements in the '\(release.description.localizedCapitalized)' section")
+        }
+
+        print(list.format().trimmingCharacters(in: .whitespacesAndNewlines))
+    }
+}

changelog.txt

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+- 🔥 No longer show AI features carousel after login
+- 🐛 Start call from native recent calls
+- 🐛 Crash on hangup
+- 🔥 Remove support for deprecated deeplinks
+- ✨ Showing new permission screen after login and if microphone permission is not granted.
+- ✨ Settings & account redesign