[menu-bar] Improve performance when running cli commands #61
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Why
Closes ENG-10052
How
To improve the performance of the
runCommand
method, this PR introduces the following optimizations:Remove
[task waitUntilExit]
, which blocks the main thread until the task is completed and usesetReadabilityHandler
andsetTerminationHandler
instead of relying on NSNotificationCenter for updates to allow asynchronous execution.Move the NSTask execution and reading of output to a background queue
Use NSMutableString to avoid String concatenation on every update
Test Plan
Use Xcode Instruments to profile CPU usage
Before
After