How to improve quality of Xcode console output

Question

There is an extreme amount of low level system debug notices being dumped in the iPhone console log (see example below) in Xcode -> Organizer -> My iPhone -> Console.

This effectively drowns my own development output. (I am making an app using a 3rd party framework (not Xcode), so I am using Xcode only to view the Console output from the phone).

To make matters worse, the iPhone console log only seems to go back one day or a few hundred lines at tops, so if I had a crash yesterday, it's sure to be overwritten by verbose system notices by the time I get to the office for debugging.

How can I a) remove the system notices, b) extend the length of the log, c) pipe the log to a bash terminal so I can do "grep" on it, or any other way to get a better overview of my own debug output?

(For example, on Android, you can do adb logcat -s MyApp to view only messages from MyApp)

Here is an example of the kind of stuff that swamps the iPhone log:

Dec 12 10:11:02  installd[31] <Error>: 0x2d5000 filter_attributes: Info.plist keys requested via MobileInstallationLookup/Browse in client Xcode (via mobile_installation_proxy) were not found in MobileInstallation's cache. Please file a bug requesting that these keys be added: <CFBasicHash 0x1d59e7a0 [0x3af630f0]>{type = mutable set, count = 18,
    entries =>
        0 : <CFString 0x3af4f9e4 [0x3af630f0]>{contents = "CFBundlePackageType"}
        1 : <CFString 0x1d59e650 [0x3af630f0]>{contents = "BuildMachineOSBuild"}
        2 : <CFString 0x3af50a34 [0x3af630f0]>{contents = "CFBundleResourceSpecification"}
        3 : <CFString 0x1d5713e0 [0x3af630f0]>{contents = "DTPlatformBuild"}
        4 : <CFString 0x3af4d784 [0x3af630f0]>{contents = "DTCompiler"}
        5 : <CFString 0x3af4f554 [0x3af630f0]>{contents = "CFBundleSignature"}
        6 : <CFString 0x3af50214 [0x3af630f0]>{contents = "DTSDKName"}
        7 : <CFString 0x1d580d60 [0x3af630f0]>{contents = "NSBundleResolvedPath"}
        8 : <CFString 0x3af4cea4 [0x3af630f0]>{contents = "UISupportedInterfaceOrientations"}
        10 : <CFString 0x3af54e74 [0x3af630f0]>{contents = "DTXcode"}
        13 : <CFString 0x3af54ea4 [0x3af630f0]>{contents = "CFBundleInfoDictionaryVersion"}
        16 : <CFString 0x3af522f4 [0x3af630f0]>{contents = "CFBundleSupportedPlatforms"}
        17 : <CFString 0x1d590660 [0x3af630f0]>{contents = "DTXcodeBuild"}
        18 : <CFString 0x1d59af70 [0x3af630f0]>{contents = "UIStatusBarTintParameters"}
        19 : <CFString 0x3af50e44 [0x3af630f0]>{contents = "DTPlatformVersion"}
        20 : <CFString 0x3af53be4 [0x3af630f0]>{contents = "DTPlatformName"}
        21 : <CFString 0x3af54c74 [0x3af630f0]>{contents = "CFBundleDevelopmentRegion"}
        22 : <CFString 0x1d599230 [0x3af630f0]>{contents = "DTSDKBuild"}
    }

Answer 1

Very good question! I strongly suggest you to use this great tool:

• NSLogger.
• NSLogger (Long but Nice) Introduction.
• Third Party Presentation of the Tool.
• And here is a tip I wrote for multiple users case.

And please let me know if you like it. :-)