Update linters

.mise.toml

@@ -1,3 +1,3 @@
 [tools]
-swiftformat = "0.54.3"
-swiftlint = "0.56.2"
+swiftformat = "0.55.3"
+swiftlint = "0.57.1"

Sources/Frontend/Commands/ScanCommand.swift

@@ -229,13 +229,14 @@ struct ScanCommand: FrontendCommand {
             try data.write(to: baselinePath.url)
         }
 
-        let output = try configuration.outputFormat.formatter.init(configuration: configuration).format(filteredResults)
+        if let output = try configuration.outputFormat.formatter.init(configuration: configuration).format(filteredResults) {
+            if configuration.outputFormat.supportsAuxiliaryOutput {
+                logger.info("", canQuiet: true)
+            }
 
-        if configuration.outputFormat.supportsAuxiliaryOutput {
-            logger.info("", canQuiet: true)
+            logger.info(output, canQuiet: false)
         }
 
-        logger.info(output, canQuiet: false)
         logger.endInterval(interval)
 
         updateChecker.notifyIfAvailable()

Sources/Frontend/UpdateChecker.swift

@@ -56,11 +56,8 @@ final class UpdateChecker {
             else {
                 var json = "N/A"
 
-                if let data {
-                    let decoded = String(decoding: data, as: UTF8.self)
-                    if !decoded.isEmpty {
-                        json = decoded
-                    }
+                if let data, let decoded = String(bytes: data, encoding: .utf8) {
+                    json = decoded
                 }
 
                 let message = "Failed to identify latest release tag in: \(json)"

Sources/PeripheryKit/Results/CheckstyleFormatter.swift

@@ -11,7 +11,7 @@ final class CheckstyleFormatter: OutputFormatter {
         self.configuration = configuration
     }
 
-    func format(_ results: [ScanResult]) -> String {
+    func format(_ results: [ScanResult]) -> String? {
         let parts = results.flatMap { describe($0, colored: false) }
         return [
             "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<checkstyle version=\"4.3\">",

Sources/PeripheryKit/Results/CodeClimateFormatter.swift

@@ -10,7 +10,7 @@ final class CodeClimateFormatter: OutputFormatter {
         self.configuration = configuration
     }
 
-    func format(_ results: [PeripheryKit.ScanResult]) throws -> String {
+    func format(_ results: [ScanResult]) throws -> String? {
         var jsonObject: [Any] = []
 
         for result in results {
@@ -49,6 +49,6 @@ final class CodeClimateFormatter: OutputFormatter {
         }
 
         let data = try JSONSerialization.data(withJSONObject: jsonObject, options: [.prettyPrinted, .withoutEscapingSlashes])
-        return String(decoding: data, as: UTF8.self)
+        return String(bytes: data, encoding: .utf8)
     }
 }

Sources/PeripheryKit/Results/CsvFormatter.swift

@@ -11,7 +11,7 @@ final class CsvFormatter: OutputFormatter {
         self.configuration = configuration
     }
 
-    func format(_ results: [ScanResult]) -> String {
+    func format(_ results: [ScanResult]) -> String? {
         var lines = ["Kind,Name,Modifiers,Attributes,Accessibility,IDs,Location,Hints"]
 
         for result in results {

Sources/PeripheryKit/Results/GitHubActionsFormatter.swift

@@ -12,8 +12,8 @@ final class GitHubActionsFormatter: OutputFormatter {
         self.configuration = configuration
     }
 
-    func format(_ results: [ScanResult]) throws -> String {
-        guard !results.isEmpty else { return "" }
+    func format(_ results: [ScanResult]) throws -> String? {
+        guard !results.isEmpty else { return nil }
         guard configuration.relativeResults else { throw PeripheryError.usageError("`periphery scan` must be ran with `--relative-results` when using the GitHub Actions formatter") }
 
         return results.flatMap { result in

Sources/PeripheryKit/Results/JsonFormatter.swift

@@ -10,7 +10,7 @@ final class JsonFormatter: OutputFormatter {
         self.configuration = configuration
     }
 
-    func format(_ results: [ScanResult]) throws -> String {
+    func format(_ results: [ScanResult]) throws -> String? {
         var jsonObject: [Any] = []
 
         for result in results {
@@ -48,6 +48,6 @@ final class JsonFormatter: OutputFormatter {
         }
 
         let data = try JSONSerialization.data(withJSONObject: jsonObject, options: [.prettyPrinted, .withoutEscapingSlashes])
-        return String(decoding: data, as: UTF8.self)
+        return String(bytes: data, encoding: .utf8)
     }
 }

Sources/PeripheryKit/Results/OutputFormatter.swift

@@ -9,7 +9,7 @@ public protocol OutputFormatter: AnyObject {
     var currentFilePath: FilePath { get }
 
     init(configuration: Configuration)
-    func format(_ results: [ScanResult]) throws -> String
+    func format(_ results: [ScanResult]) throws -> String?
 }
 
 extension OutputFormatter {

Sources/PeripheryKit/Results/XcodeFormatter.swift

@@ -12,7 +12,7 @@ final class XcodeFormatter: OutputFormatter {
         self.configuration = configuration
     }
 
-    func format(_ results: [ScanResult]) throws -> String {
+    func format(_ results: [ScanResult]) throws -> String? {
         guard !results.isEmpty else {
             return colorize("* ", .boldGreen) + colorize("No unused code detected.", .bold)
         }