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import Foundation
@objc public final class XcodeLogger: NSObject {
@objc(sharedManager)
public static let shared = XcodeLogger()
private let logger = Logger.shared
private let stateLock = NSLock()
private var legacyDescriptions: [LegacyKey: String] = [:]
private var customHeaders: [LegacyKey: [HeaderToken]] = [:]
private override init() {
super.init()
logger.updateConfiguration { configuration in
configuration.theme = .defaultLight
}
}
@objc public func setInfoPlistKeyNameForRunningSchemes(_ key: String) {
_ = key
}
@objc public func setBuildSchemeName(_ schemeName: String, forXLogType logType: XLOGGER_TYPE) {
_ = schemeName
_ = logType
}
@objc public func filterXLogLevels(_ logLevels: [NSNumber], forFileName fileName: String?) {
let levels = Set(logLevels.compactMap { LoggerLevel(legacyLevel: XLOGGER_LEVEL(rawValue: $0.uint32Value) ?? .simple) })
logger.updateConfiguration { configuration in
if let fileName {
configuration.allowedLevelsByFile[fileName.uppercased()] = levels
} else {
configuration.globalAllowedLevels = levels
}
}
}
@objc public func setHeaderForXLogType(_ logType: XLOGGER_TYPE, level logLevel: XLOGGER_LEVEL, format headerFormat: String, arguments: [Any]) {
let tokens = Self.tokens(from: headerFormat, arguments: arguments)
stateLock.lock()
for key in expandedKeys(for: logType, level: logLevel) {
customHeaders[key] = tokens
}
stateLock.unlock()
}
@objc public func setLogHeaderDescription(_ description: String, forLogType logType: XLOGGER_TYPE, level logLevel: XLOGGER_LEVEL) {
stateLock.lock()
for key in expandedKeys(for: logType, level: logLevel) {
legacyDescriptions[key] = description
}
stateLock.unlock()
}
@objc public func setNumberOfNewLinesAfterHeader(_ count: UInt, forXLogType logType: XLOGGER_TYPE, level logLevel: XLOGGER_LEVEL) {
let separator = count == 0 ? " " : String(repeating: "\n", count: Int(count))
logger.updateConfiguration { configuration in
configuration.formatting.lineSeparatorAfterHeader = separator
}
_ = logType
_ = logLevel
}
@objc public func setNumberOfNewLinesAfterOutput(_ count: UInt, forXLogType logType: XLOGGER_TYPE, level logLevel: XLOGGER_LEVEL) {
logger.updateConfiguration { configuration in
configuration.formatting.lineSeparatorAfterMessage = String(repeating: "\n", count: Int(count))
}
_ = logType
_ = logLevel
}
@objc public func setTimestampFormat(_ format: String) {
logger.updateConfiguration { configuration in
configuration.formatting.timestampFormat = format
}
}
@objc public func setColorLogsEnabled(_ enabled: Bool) {
logger.updateConfiguration { configuration in
configuration.sinks = configuration.sinks.map { sink in
if sink is DebugConsoleSink {
return DebugConsoleSink(supportsANSIColors: enabled) as LoggerSink
}
return sink
}
}
}
@objc public func availableColorThemes() -> [String] {
Array(LoggerTheme.all.keys).sorted()
}
@objc public func loadColorThemeWithName(_ colorThemeName: String) {
guard let theme = LoggerTheme.all[colorThemeName.uppercased()] else {
return
}
logger.updateConfiguration { configuration in
configuration.theme = theme
}
}
@objc public func printAvailableColorThemes() {
logger.log(level: .simpleNoHeader, category: .default, message: availableColorThemes().joined(separator: "\n"))
}
@objc public func printColorThemeCreationInstructions() {
logger.log(level: .simpleNoHeader, category: .default, message: "Create a LoggerTheme and assign it through LoggerConfiguration or loadColorThemeWithName(_:).")
}
@objc(emitCompatibilityLogWithType:level:file:function:line:message:metadata:)
public func emitCompatibilityLog(
type: XLOGGER_TYPE,
level: XLOGGER_LEVEL,
file: String,
function: String,
line: Int,
message: String,
metadata: LoggerMetadata = [:]
) {
let key = LegacyKey(type: type, level: level)
let category = LoggerCategory(legacyType: type)
let modernLevel = LoggerLevel(legacyLevel: level)
let source = LogSource(file: file, function: function, line: line)
var label: String?
var tokens: [HeaderToken]?
stateLock.lock()
label = legacyDescriptions[key]
tokens = customHeaders[key]
stateLock.unlock()
logger.updateConfiguration { configuration in
let resolvedLabel = label ?? configuration.theme.entry(for: modernLevel).label
configuration.formatting.headerTokens = tokens ?? defaultTokens(with: resolvedLabel)
}
logger.log(level: modernLevel, category: category, message: message, metadata: metadata, source: source)
}
}
extension XcodeLogger: @unchecked Sendable {}
extension XcodeLogger {
private func defaultTokens(with label: String) -> [HeaderToken] {
[
.literal("["),
.literal(label),
.literal("] "),
.timestamp,
.literal(" "),
.file,
.literal(":"),
.line,
.literal(" "),
.function
]
}
private func expandedKeys(for logType: XLOGGER_TYPE, level: XLOGGER_LEVEL) -> [LegacyKey] {
let types: [XLOGGER_TYPE] = logType == .all ? [.NSLogReplacement, .debug, .development, .debugDevelopment, .onlineServices] : [logType]
let levels: [XLOGGER_LEVEL] = level == .all ? [.simple, .simpleNoHeader, .information, .important, .warning, .error] : [level]
return types.flatMap { type in levels.map { LegacyKey(type: type, level: $0) } }
}
private static func tokens(from format: String, arguments: [Any]) -> [HeaderToken] {
let pieces = format.components(separatedBy: "%@")
var tokens: [HeaderToken] = []
for (index, piece) in pieces.enumerated() {
if !piece.isEmpty {
tokens.append(.literal(piece))
}
guard index < arguments.count else {
continue
}
let argument = arguments[index]
if let number = argument as? NSNumber, let legacyArgument = XLOGGER_ARGS(rawValue: number.uint32Value) {
switch legacyArgument {
case .logDescription:
tokens.append(.label)
case .timestamp:
tokens.append(.timestamp)
case .callee:
tokens.append(.literal("self"))
case .calleeMethod:
tokens.append(.function)
case .lineNumber:
tokens.append(.line)
case .fileName:
tokens.append(.file)
}
} else if let string = argument as? String {
tokens.append(.literal(string))
}
}
return tokens
}
}
private struct LegacyKey: Hashable {
let type: XLOGGER_TYPE
let level: XLOGGER_LEVEL
}