Make Ipa package in random tmpdir

[mcfedr]

Checklist

• I've run bundle exec rspec from the root directory to see all new and existing tests pass
• I've followed the fastlane code style and run bundle exec rubocop -a to ensure the code style is valid
• I've read the Contribution Guidelines
• I've updated the documentation if necessary.

Description

Don't put the ipa upload package just in /tmp, put just mktmpdir to make a unique temp name.

Motivation and Context

On a multiuser system, one user creates the package, then pilot will fail for other users because it cannot read/write to the file.

[ohayon]

Hey @mcfedr, thanks for the PR! Just to clarify your motivation for this: are you looking to run the build as one user and then complete the pilot upload as another user on the same machine? Thanks! 🐙

[mcfedr]

Hi, @ohayon . I have a CI machine, with several users each running a gitlab-runner so they can run concurrently.

[KrauseFx]

That's a great change that makes sense for sure. However fastlane and xcodebuild doesn't allow running multiple instances afaik, so make sure to test everything

[KrauseFx]

Have you tested this on your local machine?

[KrauseFx]

To clarify: because you can only run one simulator per machine/user make sure that everything works. fastlane itself might have problems running multiple times at the same time

[mcfedr]

Yes, I have tested it on my local machine and on my CI server, and it solves the problem I was having.
Yes, only one of the users on the CI machine can run the simulator, one account runs in a UI session and the other runners can just do builds without running tests.

[KrauseFx]

Awesome, thanks @mcfedr 👍

[fastlane-bot]

Congratulations! 🎉 This was released as part of fastlane 2.25.0 🚀