How to disable logging with os_log

krzyzanowskim · 2019-01-11T20:39:46.355Z

When os_log is used, sourcekit-lsp logs everything (guess that's expected)

apple/sourcekit-lsp/blob/e6abaf00aef5535452f7e8f97a15863fdb406629/Sources/SKSupport/Logging.swift#L133


      
            }
          
          
  public func log(_ message: String, level: LogLevel, async: Bool = true) {
          
          
    let currentLevel = self.currentLevel
          
          
    var usedOSLog = false
          #if canImport(os)
              if !disableOSLog, #available(OSX 10.12, *) {
                // If os_log is available, we call it unconditionally since it has its own log-level handling that we respect.
                os_log("%@", type: level.osLogType, message)
                usedOSLog = true
              }
          #endif
          
          
    if level > currentLevel {
                return
              }
          
          
    let logImpl = { self.logImpl(message, level: level, usedOSLog: usedOSLog) }

I'm not fluent in os_log setup (looking at macOS and Xcode). Is there a way to disable logs when spawning the sourcekit-lsp process? it all goes to the Xcode console and is super annoying ;P

PS. I know Tests uses Logger.disableOSLog to disable logs completely (I guess because it was too verbose in console)

Josh_Wisenbaker · 2019-01-11T21:28:41.641Z

While you can adjust the levels some via profiles or the log command, I don't know that you can totally disable the default levels easily with os_log.

In that class disableOSLog is a bool that defaults to false. Is sourcekit-lsp looking for an environment variable or something when you run it to know if it should set that flag on the Logger class?

blangmuir · 2019-01-11T21:38:39.511Z

krzyzanowskim:

PS. I know Tests uses Logger.disableOSLog to disable logs completely (I guess because it was too verbose in console)

The disableOSLog flag is only ever set to true during one specific test today, but patches welcome for making it configurable.

Sorry, I don't know off hand if it's possible to turn it off globally during Xcode debugging - I believe os_log behaves specially when running under the debugger, but I assume the configuration options @Josh_Wisenbaker mentioned would still apply.

krzyzanowskim · 2019-01-11T22:07:18.281Z

thanks. Noticed that, but it looks very cumbersome and system level, that why I asked.

shouldn't "os_log" specify "com.apple.sourcekit-lsp" or something like that to make it possible to filter it out with the "subsystems" ?