Open Radar

 
Summary:
The verbose output flag for instruments (-v) seems to be broken. It seems to be sensitive to the contents of the -w flag. When using a valid device as the parameter to -w, the -v flag works. Otherwise, including the -v flag results in a usage error

Steps to Reproduce:
1. Install Xcode and command-line tools
2. Run instruments from the command line with a device that instruments does not recognize:

/Applications/Xcode6-Beta.app/Contents/Developer/usr/bin/instruments -t /Applications/Xcode6-beta.app/Contents/Applications/Instruments.app/Contents/PlugIns/AutomationInstrument.xrplugin/Contents/Resources/Automation.tracetemplate -w "baddevice" /path/to/my.app -e UIASCRIPT /path/to/my/test.js -e UIARESULTSPATH /tmp

3. Notice the appropriate response:

Instruments Usage Error : Unknown hardware device specified: baddevice
Known Devices:
Sauce’s MacBook Air (EC381EA7-C2D0-5273-879B-04200C48ED34)
Resizable iPad (8.0 Simulator) (78F6FC88-3E04-409B-9186-6B4E7B90212D)
Resizable iPhone (8.0 Simulator) (881FDF6F-669E-4765-8FB2-C7F819834063)
iPad 2 (8.0 Simulator) (98141C01-B98F-4576-90F7-950ED2EEF102)
iPad Air (8.0 Simulator) (D6C8E111-6D93-426B-BC51-390F22108193)
iPad Retina (8.0 Simulator) (BF8DA1BE-250E-4561-AC91-901D0D91F638)
iPhone 4s (8.0 Simulator) (1C1B7C9D-6B38-4374-86BB-31A7CFA6F9F5)
iPhone 5 (8.0 Simulator) (C06770EE-66DC-43E2-A73C-3FFC09C74A89)
iPhone 5s (8.0 Simulator) (7538FB7A-DF4B-45FD-B7C5-F9D53BA8FEB6)

4. Now try again with verbose logging enabled:

/Applications/Xcode6-Beta.app/Contents/Developer/usr/bin/instruments -v -t /Applications/Xcode6-beta.app/Contents/Applications/Instruments.app/Contents/PlugIns/AutomationInstrument.xrplugin/Contents/Resources/Automation.tracetemplate -w "baddevice" /path/to/my.app -e UIASCRIPT /path/to/my/test.js -e UIARESULTSPATH /tmp


Expected Results:
I expect to see the same result as in step 3, with perhaps more verbose logging attached to it.

Actual Results:
Instead, we get this usage error:

Instruments Usage Error : No template (-t) specified
instruments, version 6.0 (56107.10.7)
usage: instruments [-t template] [-D document] [-l timeLimit] [-i #] [-w device] [[-p pid] | [application [-e variable value] [argument ...]]]

Clearly, it is incorrect, as nothing about the command changed other than adding the -v flag.

Also, if we try the -v flag with a correct device (say "iPhone 5s"), the verbose logging works.

Version:
Xcode 6
Instruments 6
OS X 10.10

Notes:


Configuration:
Macbook Air