Created Scripts/PackageTargetsParser.swift

Author: wei18

Scripts/PackageTargetsParser.swift

@@ -0,0 +1,64 @@
+//
+//  PackageTargetsParser.swift
+//  GitHubRestAPISwiftOpenAPI
+//
+//  Created by zwc on 2025/5/11.
+//
+
+import Foundation
+
+struct ErrorMessage: LocalizedError {
+    var message: String
+    var errorDescription: String? { message }
+    init(message: String, line: Int = #line) {
+        self.message = "\(line): \(message)"
+    }
+}
+
+/// A struct that parses a JSON file containing a "tags" array, extracting the "name" field from each element.
+struct PackageTargetsParser {
+
+    /// Parses the provided JSON file and extracts the "name" values from the "tags" array.
+    ///
+    /// - Parameter path: The path to the JSON file to be parsed.
+    /// - Returns: An array of strings representing the "name" values found in the "tags" array.
+    /// - Throws: An error if the file cannot be read or the JSON structure is invalid.
+    ///
+    /// Example:
+    /// 
+    /// Given a JSON file:
+    /// ```json
+    /// {
+    ///   "tags": [
+    ///     { "name": "user" },
+    ///     { "name": "admin" },
+    ///     { "name": "billing" }
+    ///   ]
+    /// }
+    /// ```
+    /// The function will return:
+    /// ```swift
+    /// ["user", "admin", "billing"]
+    /// ```
+    func parse(from path: String) throws -> [String] {
+        let data = try Data(contentsOf: URL(fileURLWithPath: path))
+        let json = try JSONSerialization.jsonObject(with: data, options: [])
+        if let dict = json as? [String: Any], let tags = dict["tags"] as? [[String: Any]] {
+            return tags.compactMap { $0["name"] as? String }
+        } else {
+            throw ErrorMessage(message: "Properties not found.")
+        }
+    }
+}
+
+if let argPath = CommandLine.arguments[1]
+    .split(whereSeparator: \.isNewline)
+    .first {
+    let path = String(argPath)
+    let names = try PackageTargetsParser().parse(from: path)
+    print(names.joined(separator: "\n"))
+} else {
+    throw ErrorMessage(message: "PackageTargetsParser.parse(from:) failure")
+}
+
+