Speedup shell calls.

[ZGl6YXNt]

Calling xcodebuild every time significantly increases execution time. So we need to call it once and cache the value.

[amidaleet]

Thanks for your fix. Used locally, saved 10 min per .xcresult export!

Significant performance downgrade on 1.19.1 with Xcode 16.1.
Tests Scheme report export now takes 14 mins instead of 5 s (on Xcode 15.4).
Tests run itself takes less 😕

WIth this fix cache time lowered to ~ 4 min.
Still bad, but not that terrible though 🙂

[amidaleet]

As quick workaround for 1.19.1 version binary: xcodebuild call may be mocked with simple bash script via PATH.

In my case it lowered export duration to 5 min from 14 min.

export PATH="path/to/fake_xcodebuild_dir:$PATH"
xcresults export /path/to/Test.xcresult -o /path/to/outputDirectory

Where fake_xcodebuild_dir/xcodebuild executable file like:

#!/bin/bash

echo 'Xcode 16.1'
echo 'Build version 16B40'

xcodebuild -version is the only call to this binary inside xcresults code, so no side effects are expected.