This post covers recommendations for a .gitignore file for Xcode projects. But I have a simpler question.
My developer keys show up in Xcode. I just want to know if I share an Xcode project, if my developer data will somehow attach itself with the project. (I realize there's a whole painful process involving private keys etc, but I don't want any "pieces" of my apple developer acct shared)
Specifically, I am looking at the Code Signing Identity field, which says "currently matches 'iPhone Developer: Me (then some string like H831JA8U2JIOA).
Will the Code Signing Identity field reassign itself when opened on another computer?
Click where it says "currently matches 'iPhone Developer..." and verify that the checked option is under the "Automatic Profile Selector" heading. If it is, your personal info shouldn't be in the Xcode project. You can verify this further by searching the PROJECTNAME.xcodeproj/project.pbxproj file for occurrences of your information.
For further confirmation, you can grep your project directory with grep -ilR SIGNING_IDENTITY_HERE * which should reveal any occurrences of the signing identity. You can cross-reference this output with the files ignored by git to assess your risk.