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| 1 | +// |
| 2 | +// PackageTargetsParser.swift |
| 3 | +// GitHubRestAPISwiftOpenAPI |
| 4 | +// |
| 5 | +// Created by zwc on 2025/5/11. |
| 6 | +// |
| 7 | + |
| 8 | +import Foundation |
| 9 | + |
| 10 | +struct ErrorMessage: LocalizedError { |
| 11 | + var message: String |
| 12 | + var errorDescription: String? { message } |
| 13 | + init(message: String, line: Int = #line) { |
| 14 | + self.message = "\(line): \(message)" |
| 15 | + } |
| 16 | +} |
| 17 | + |
| 18 | +/// A struct that parses a JSON file containing a "tags" array, extracting the "name" field from each element. |
| 19 | +struct PackageTargetsParser { |
| 20 | + |
| 21 | + /// Parses the provided JSON file and extracts the "name" values from the "tags" array. |
| 22 | + /// |
| 23 | + /// - Parameter path: The path to the JSON file to be parsed. |
| 24 | + /// - Returns: An array of strings representing the "name" values found in the "tags" array. |
| 25 | + /// - Throws: An error if the file cannot be read or the JSON structure is invalid. |
| 26 | + /// |
| 27 | + /// Example: |
| 28 | + /// |
| 29 | + /// Given a JSON file: |
| 30 | + /// ```json |
| 31 | + /// { |
| 32 | + /// "tags": [ |
| 33 | + /// { "name": "user" }, |
| 34 | + /// { "name": "admin" }, |
| 35 | + /// { "name": "billing" } |
| 36 | + /// ] |
| 37 | + /// } |
| 38 | + /// ``` |
| 39 | + /// The function will return: |
| 40 | + /// ```swift |
| 41 | + /// ["user", "admin", "billing"] |
| 42 | + /// ``` |
| 43 | + func parse(from path: String) throws -> [String] { |
| 44 | + let data = try Data(contentsOf: URL(fileURLWithPath: path)) |
| 45 | + let json = try JSONSerialization.jsonObject(with: data, options: []) |
| 46 | + if let dict = json as? [String: Any], let tags = dict["tags"] as? [[String: Any]] { |
| 47 | + return tags.compactMap { $0["name"] as? String } |
| 48 | + } else { |
| 49 | + throw ErrorMessage(message: "Properties not found.") |
| 50 | + } |
| 51 | + } |
| 52 | +} |
| 53 | + |
| 54 | +if let argPath = CommandLine.arguments[1] |
| 55 | + .split(whereSeparator: \.isNewline) |
| 56 | + .first { |
| 57 | + let path = String(argPath) |
| 58 | + let names = try PackageTargetsParser().parse(from: path) |
| 59 | + print(names.joined(separator: "\n")) |
| 60 | +} else { |
| 61 | + throw ErrorMessage(message: "PackageTargetsParser.parse(from:) failure") |
| 62 | +} |
| 63 | + |
| 64 | + |
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